Radar · Environment Tech in United States
Best Environment Tech Companies in United States
The 4909 best Environment Tech companies in United States in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: View.
By Riya SenguptaFinancials
4909companies tracked
$67.1Bdisclosed funding
23unicorns
1892have raised
Here's something worth sitting with: 4,909 Environment Tech companies tracked across the United States, collectively pulling in $67.1 billion in disclosed funding. That's not a niche. Redwood Materials alone has raised $1.9 billion, Nexamp sits at $1.3 billion, and LanzaTech has secured $869 million. Twenty-three unicorns have emerged from this field, backed by institutions ranging from the DOE to the National Science Foundation. So if you're trying to understand where serious capital is flowing in climate and energy technology, the numbers here do the talking.
Momentum is building in the mobile layer too, with median install growth running at roughly 20% year-over-year across 161 environmental and renewables apps. The themes driving that aren't abstract: EV battery technology, next-generation EV platforms, and EV drive system innovations are pulling both investor attention and consumer engagement. I'd note that Fervo Energy ($420 million raised) and Tomorrow.io ($250 million) represent the breadth of this field, from geothermal to climate intelligence. This directory ranks the best-funded Environment Tech companies in the United States by disclosed equity and recent funding momentum, giving you a ground-level view of where the real capital is concentrated.
Sources & further reading
- West Asia war lays bare weak links in India’s renewable energy plan, grid networ
- No new wind for Consumers Energy
- The world is embracing offshore wind even as the us retreats
FLIAR INTELLIGENCE · ENVIRONMENT TECH × UNITED STATES
Our analysis of 83 Environment Tech companies
$16.0b in tracked funding; 90% of the stack-profiled cohort runs cloud-native; funding activity peaked in 2025.
83companies analysed
90%cloud-native stacks
2025funding peak (by rounds)
9unicorns
2016median founding year
1.1Mcombined LinkedIn audience
22%of audience held by top 3
7companies hiring publicly (12 mo)
Ranked: Best Environment Tech companies in United States
| # | Company | Disclosed funding | Last round | Stage | Employees | Founder | Market signals (1y) | Patents & IP focus | Recent signals |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Redwood Materials 🦄 Provider of repurposed battery packs for modular energy storage systems 82Funding top 11%News top 15%Growth top 25%Moat top 26% All 10 signals ▾Fundingtop 11% Newstop 15% Growthtop 25% Moattop 26% Markettop 32% Producttop 41% Talenttop 43% Techtop 45% Globaltop 48% Partnersbottom 35% Funding: Raised $1.9B across 9 rounds · 9 rounds over 9 yrs (1.0/yr) News: 16 BI events in 12 mo (of 108 tracked, 12 types) · +433% YoY rank vs industry peers · Fliar Intelligence Index 82/100 | $1.9B | 4 mo ago | Series E | 516 | Jb Straubel founder | 16 signals ▲433% Leadership · Funding · Layoffs | — | 1 job opening · 1 internship · 2 partnerships |
| 2 | Nexamp 🦄 Provider of community solar programs and energy solutions for businesses 76Funding top 12%Tech top 23%Moat top 23%Talent top 35% All 8 signals ▾Fundingtop 12% Techtop 23% Moattop 23% Talenttop 35% Markettop 38% Growthtop 43% Globalbottom 39% Newsbottom 38% Funding: Raised $1.3B across 12 rounds · 12 rounds over 16 yrs (0.8/yr) Tech: 42 technologies across 6/8 capability areas · Cloud: Cloudflare rank vs industry peers · Fliar Intelligence Index 76/100 | $1.3B | 1 mo ago | Series E | 331 331 → 589 (+78%) · sector median +52% | Zaid Ashai CEO | 3 signals ▼75% Funding | — | 1 award |
| 3 | Form Energy Clean energy technology platform developing long-duration iron-air battery systems 83Patents top 11%Funding top 15%Innovation top 16%Moat top 26% All 12 signals ▾Patentstop 11% Fundingtop 15% Innovationtop 16% Moattop 26% Producttop 28% Growthtop 31% Partnerstop 31% Talenttop 34% Newstop 36% Markettop 37% Techtop 44% Globalbottom 44% Patents: 358 patents matched (strict assignee match) · 302 filings since 2022 vs 54 in 2017-21 Funding: Raised $1.1B across 9 rounds · 9 rounds over 8 yrs (1.1/yr) rank vs industry peers · Fliar Intelligence Index 83/100 | $1.1B | 17 mo ago | Series F | 372 372 → 850 (+128%) · sector median +52% | Ted Wiley Co-Founder + President & COO | 5 signals ▼17% Contracts · Acquisition · Hiring | 358 patents Low-cost metal‑air batteries and iron‑based electrochemical production systems | 1 job opening |
| 4 | Ascend Elements 🦄 Manufacturer of engineered materials from recycled lithium-ion batteries and battery scrap 80Funding top 13%Innovation top 21%Patents top 22%News top 24% All 11 signals ▾Fundingtop 13% Innovationtop 21% Patentstop 22% Newstop 24% Moattop 25% Growthtop 27% Talenttop 38% Markettop 42% Techbottom 48% Partnersbottom 43% Globalbottom 42% Funding: Raised $1.0B across 10 rounds · 10 rounds over 4 yrs (2.5/yr) Innovation: 98 patents (top 28% of patent-holders) · 98 filings since 2022 vs 0 in 2017-21 rank vs industry peers · Fliar Intelligence Index 80/100 | $1.0B | 15 mo ago | Series D | 87 87 → 148 (+70%) · sector median +52% | Yan Wang Co-Founder | 7 signals ▲40% Announcements · Hiring · Contracts | 98 patents Recycling and purification of battery metals and graphite for Li‑ion and NiMH batteries | — |
| 5 | Divert Provider of recyclable waste management services 55Funding top 28%Talent top 38%Tech top 42%Moat top 45% All 10 signals ▾Fundingtop 28% Talenttop 38% Techtop 42% Moattop 45% Markettop 46% Patentstop 50% Growthbottom 47% Globalbottom 42% Innovationbottom 36% Newsbottom 19% Funding: Raised $1.0B across 2 rounds · 2 rounds over 8 yrs (0.2/yr) Talent: 2 named leaders on record · 2 C-suite/founder profiles curated rank vs industry peers · Fliar Intelligence Index 55/100 | $1.0B | 4 mo ago | Series B | 250 | Ryan Begin Co-Founder & CEO | — | 39 patents Digital waste tracking and compliance analytics for supply-chain material handling | 1 partnership · 1 expansion |
| 6 | LanzaTech 🦄 Developer of technology converting carbon-rich gases into fuels and chemicals 78Patents top 10%Funding top 17%News top 25%Innovation top 26% All 13 signals ▾Patentstop 10% Fundingtop 17% Newstop 25% Innovationtop 26% Moattop 26% Producttop 29% Markettop 30% Talenttop 34% Partnerstop 35% Techtop 36% Globaltop 37% Growthtop 45% Fin. healthbottom 48% Patents: 765 patents matched (strict assignee match) · 530 filings since 2022 vs 213 in 2017-21 Funding: Raised $869M across 21 rounds · 21 rounds over 21 yrs (1.0/yr) rank vs industry peers · Fliar Intelligence Index 78/100 | $869M | 4 mo ago | Public | 367 367 → 243 (-34%) · sector median +52% | Sean Simpson Co-Founder | 25 signals ▲56% Funding · Hiring · Leadership | 765 patents Industrial gas fermentation using engineered microbes to convert C1 gases into chemicals and proteins | 2 partnerships · 1 expansion · 1 award |
| 7 | Redaptive 🦄 Provider of fully-funded energy efficiency and sustainability solutions. 60Funding top 16%Moat top 26%Product top 30%Market top 37% All 9 signals ▾Fundingtop 16% Moattop 26% Producttop 30% Markettop 37% Talenttop 38% Globaltop 48% Techtop 49% Growthbottom 40% Newsbottom 21% Funding: Raised $726M across 11 rounds · 11 rounds over 11 yrs (1.0/yr) Moat: Editorial + unicorn rating 9/10 · Unicorn rank vs industry peers · Fliar Intelligence Index 60/100 | $726M | 13 mo ago | Series E | 326 | Arvin Vohra Co-Founder & CEO | — | — | — |
| 8 | GridPoint Provider of data-driven energy management solutions 57Funding top 18%Patents top 31%Innovation top 32%Moat top 35% All 12 signals ▾Fundingtop 18% Patentstop 31% Innovationtop 32% Moattop 35% Producttop 37% Talenttop 38% Techtop 45% Markettop 47% Globalbottom 42% Growthbottom 41% Newsbottom 24% Customersbottom 22% Funding: Raised $539M across 15 rounds · 15 rounds over 21 yrs (0.7/yr) Patents: 169 patents matched (strict assignee match) · 16 filings since 2022 vs 35 in 2017-21 rank vs industry peers · Fliar Intelligence Index 57/100 | $539M | 14 mo ago | Acquired | 192 192 → 190 (-1%) · sector median +52% | Peter Corsell Founder | — | 169 patents Smart energy management and demand‑response control for HVAC, lighting, and submetered devices | — |
| 9 | Mainspring Energy Developer of onsite linear power generators 82Patents top 16%Funding top 18%Innovation top 21%Moat top 24% All 10 signals ▾Patentstop 16% Fundingtop 18% Innovationtop 21% Moattop 24% Talenttop 28% Growthtop 32% Techtop 36% Markettop 45% Globalbottom 47% Newsbottom 18% Patents: 166 patents matched (strict assignee match) · 113 filings since 2022 vs 52 in 2017-21 Funding: Raised $518M across 5 rounds · 5 rounds over 9 yrs (0.6/yr) rank vs industry peers · Fliar Intelligence Index 82/100 | $518M | 14 mo ago | Series F | 114 | Matt Svrcek Co-Founder & CTO | — | 166 patents Patents concentrated in mechanical & energy engineering | — |
| 10 | Clean Capital Online platform for funding solar projects 60Funding top 18%Talent top 28%Growth top 29%Moat top 31% All 10 signals ▾Fundingtop 18% Talenttop 28% Growthtop 29% Moattop 31% Producttop 40% Innovationtop 43% Techtop 44% Newstop 46% Globalbottom 39% Marketbottom 30% Funding: Raised $504M across 5 rounds · 5 rounds over 11 yrs (0.5/yr) Talent: 3 named leaders on record · 3 C-suite/founder profiles curated rank vs industry peers · Fliar Intelligence Index 60/100 | $504M | 5 mo ago | Series B | 30 | Jon Powers Co Founder | 3 signals Capital raise · Acquisition | — | — |
| 11 | Fervo Energy Developer of next-generation geothermal projects delivering carbon-free energy 57Funding top 8%Talent top 34%News top 39%Partners top 45% All 9 signals ▾Fundingtop 8% Talenttop 34% Newstop 39% Partnerstop 45% Growthtop 47% Techtop 48% Moattop 48% Marketbottom 44% Globalbottom 39% Funding: Raised $420M across 12 rounds · 12 rounds over 5 yrs (2.4/yr) Talent: Analyst team rating 4/5 · 2 named leaders on record rank vs industry peers · Fliar Intelligence Index 57/100 | $420M | 3 mo ago | Public | 49 | Jack Norbeck Co-Founder and CTO | 9 signals ▼31% Funding · IPO · Capital raise | — | 1 launch · 3 partnerships |
| 12 | Gradiant 🦄 Provider of industrial water treatment solutions and technologies 78Patents top 21%Moat top 22%Funding top 26%Innovation top 29% All 11 signals ▾Patentstop 21% Moattop 22% Fundingtop 26% Innovationtop 29% Globaltop 30% Markettop 33% Growthtop 35% Fin. healthtop 37% Techtop 40% Newstop 42% Talentbottom 49% Patents: 256 patents matched (strict assignee match) · 103 filings since 2022 vs 108 in 2017-21 Moat: Editorial + unicorn rating 9/10 · IP moat: 256 patents rank vs industry peers · Fliar Intelligence Index 78/100 | $400M | 1 mo ago | Series E | 900 | Anurag Bajpayee Co-Founder & CEO | — | 256 patents Patents concentrated in transport & manufacturing processes | — |
| 13 | Twelve Developer of carbon transformation technology producing fuels and feedstock products 78Funding top 16%Patents top 23%Moat top 26%Talent top 28% All 10 signals ▾Fundingtop 16% Patentstop 23% Moattop 26% Talenttop 28% Innovationtop 29% Growthtop 38% Markettop 41% Techtop 41% Globalbottom 49% Newsbottom 24% Funding: Raised $387M across 19 rounds · 19 rounds over 10 yrs (1.9/yr) Patents: 301 patents matched (strict assignee match) · 127 filings since 2022 vs 131 in 2017-21 rank vs industry peers · Fliar Intelligence Index 78/100 | $387M | 13 mo ago | Series C | 232 232 → 267 (+15%) · sector median +52% | Nicholas Flanders Co-Founder & CEO | — | 301 patents Patents concentrated in health & consumer products | 2 launchs |
| 14 | Ascent Solar Manufacturer of flexible thin-film solar panels for varied applications 37Product top 14%News top 25%Funding top 30%Growth top 30% All 12 signals ▾Producttop 14% Newstop 25% Fundingtop 30% Growthtop 30% Innovationtop 39% Patentstop 42% Talentbottom 49% Techbottom 39% Globalbottom 38% Moatbottom 37% Fin. healthbottom 36% Marketbottom 19% Product: 4 distinct product lines · Company stage: Public News: 6 BI events in 12 mo (of 88 tracked, 11 types) · +200% YoY rank vs industry peers · Fliar Intelligence Index 37/100 | $265M | 4 mo ago | Public | 16 | Paul Warley CEO | 6 signals ▲200% Funding · Incorporation | 96 patents Thin‑film solar cell manufacturing, flexible substrates, and monolithic integration for airborne power. | — |
| 15 | Tomorrow.io 🦄 AI-powered weather intelligence platform using satellites for real-time forecasting 89Funding top 16%Customers top 25%AI top 26%Moat top 26% All 11 signals ▾Fundingtop 16% Customerstop 25% AItop 26% Moattop 26% Producttop 27% Techtop 28% Talenttop 28% Newstop 30% Growthtop 37% Markettop 39% Globaltop 48% Funding: Raised $250M across 4 rounds · 4 rounds over 9 yrs (0.4/yr) Customers: Play-Store rating 4.57★ across 25,899 ratings (2 apps) · Review volume +2% in 6 mo rank vs industry peers · Fliar Intelligence Index 89/100 | $250M | 1 mo ago | Series F | 124 124 → 228 (+84%) · sector median +52% | Hagit Messer Co-Founder | 4 signals Funding | — | 1 award |
| 16 | SPAN Smart energy management technology platform that modernizes residential electrical systems 82Funding top 13%Innovation top 18%Patents top 20%Growth top 28% All 11 signals ▾Fundingtop 13% Innovationtop 18% Patentstop 20% Growthtop 28% Moattop 28% Producttop 35% Talenttop 38% Techtop 42% Customerstop 42% Markettop 43% Globalbottom 42% Funding: Raised $231M across 10 rounds · 10 rounds over 8 yrs (1.2/yr) Innovation: 78 patents (top 21% of patent-holders) · 64 filings since 2022 vs 14 in 2017-21 rank vs industry peers · Fliar Intelligence Index 82/100 | $231M | 5 mo ago | Series C | 220 | Jireh Seow Co-Founder | — | 78 patents Smart electrical panel and load management systems for residential/commercial energy control | 1 job opening |
| 17 | Sense Smart energy platform providing real-time electricity usage insights for homes and utilities 60Patents top 21%Funding top 23%Customers top 26%Moat top 26% All 12 signals ▾Patentstop 21% Fundingtop 23% Customerstop 26% Moattop 26% Innovationtop 27% Producttop 33% Talenttop 33% Techtop 36% Growthtop 37% Globaltop 50% Marketbottom 40% Fin. healthbottom 17% Patents: 114 patents matched (strict assignee match) · 60 filings since 2022 vs 44 in 2017-21 Funding: Raised $195M across 5 rounds · 5 rounds over 11 yrs (0.5/yr) rank vs industry peers · Fliar Intelligence Index 60/100 | $195M | 4 mo ago | Series D | 120 120 → 106 (-12%) · sector median +52% | Mike Phillips Co-founder | — | 114 patents Smart power metering and event analytics for device identification in intelligent grids | 1 award |
| 18 | Frore Systems Developer of thermal management solutions for data centers and electronic devices 72Innovation top 16%Patents top 17%Funding top 18%Moat top 33% All 10 signals ▾Innovationtop 16% Patentstop 17% Fundingtop 18% Moattop 33% Newstop 34% Growthtop 35% Talenttop 38% Marketbottom 48% Techbottom 42% Globalbottom 40% Innovation: 194 patents (top 16% of patent-holders) · 163 filings since 2022 vs 31 in 2017-21 Patents: 194 patents matched (strict assignee match) · 163 filings since 2022 vs 31 in 2017-21 rank vs industry peers · Fliar Intelligence Index 72/100 | $190M | 3 mo ago | Series D | 75 | Suryaprakash Ganti Co-Founder & CTO | 4 signals Funding | 194 patents MEMS-enabled active cooling and fluidic actuation for LED and waterproof electronic systems | — |
| 19 | Persefoni Provider of carbon accounting and sustainability management platform for businesses 55Funding top 24%Growth top 35%Moat top 35%Product top 36% All 13 signals ▾Fundingtop 24% Growthtop 35% Moattop 35% Producttop 36% Talenttop 38% Techtop 40% Globaltop 42% AItop 45% Patentstop 49% Marketbottom 49% Innovationbottom 42% Newsbottom 22% Fin. healthbottom 17% Funding: Raised $171M across 6 rounds · 6 rounds over 6 yrs (1.0/yr) Growth: Fresh capital in last 24 mo rank vs industry peers · Fliar Intelligence Index 55/100 | $171M | 1 mo ago | Series C | 295 | Jason Offerman President | — | 3 patents Enterprise carbon accounting and portfolio management software solutions | 1 launch · 1 award |
| 20 | Watershed 🦄 Provider of platform for enterprise sustainability programs, measurement, reporting, and action 78Funding top 18%Growth top 24%Moat top 25%Product top 28% All 11 signals ▾Fundingtop 18% Growthtop 24% Moattop 25% Producttop 28% Talenttop 28% Techtop 34% Newstop 38% Markettop 39% Patentstop 46% Innovationtop 47% Globaltop 49% Funding: Raised $170M across 4 rounds · 4 rounds over 5 yrs (0.8/yr) Growth: Headcount 11 → 225 (+1945%) across vintages · Fresh capital in last 24 mo rank vs industry peers · Fliar Intelligence Index 78/100 | $170M | 5 mo ago | Series C | 225 | Christian Anderson Co-Founder | 4 signals ▲33% New product · Announcements | 31 patents Shear‑resistant geomembranes and waterproof modular bags for containment and protective applications | — |
| 21 | Lancium Developer of infrastructure for artificial intelligence data centers and power orchestration 72Funding top 19%Patents top 24%Moat top 26%Innovation top 28% All 11 signals ▾Fundingtop 19% Patentstop 24% Moattop 26% Innovationtop 28% Talenttop 38% Techtop 39% Growthtop 45% AItop 45% Marketbottom 47% Globalbottom 40% Newsbottom 27% Funding: Raised $150M across 3 rounds · 3 rounds over 8 yrs (0.4/yr) Patents: 173 patents matched (strict assignee match) · 88 filings since 2022 vs 85 in 2017-21 rank vs industry peers · Fliar Intelligence Index 72/100 | $150M | 8 mo ago | Series D | 80 80 → 69 (-14%) · sector median +52% | Prashant Gupta Co-Founder | — | 173 patents Real-time behind‑meter power routing and load management for EV charging and flexible datacenters | — |
| 22 | VoltaGrid AI and cloud-driven platform offering microgrids to provide electricity to off-grid areas 74Funding top 18%News top 20%Growth top 25%Moat top 28% All 12 signals ▾Fundingtop 18% Newstop 20% Growthtop 25% Moattop 28% Partnerstop 29% Innovationtop 32% Patentstop 33% Techtop 44% AItop 45% Talentbottom 49% Marketbottom 46% Globalbottom 39% Funding: Raised $100M across 4 rounds · 4 rounds over 5 yrs (0.8/yr) News: 8 BI events in 12 mo (of 17 tracked, 4 types) · +167% YoY rank vs industry peers · Fliar Intelligence Index 74/100 | $100M | 1 mo ago | Series D | 44 | Nathan Ough Co-Founder & CEO | 8 signals ▲167% Contracts · Funding | 38 patents Grid‑scale power generation, condenser‑based stabilization, and modular energy‑system hardware | 2 internships |
| 23 | Allonnia Provider of solutions for upcycling plastic waste 37Funding top 24%Moat top 37%Patents top 41%Innovation top 47% All 8 signals ▾Fundingtop 24% Moattop 37% Patentstop 41% Innovationtop 47% Talentbottom 49% Newsbottom 44% Globalbottom 39% Marketbottom 34% Funding: Raised $90.0M across 5 rounds · 5 rounds over 6 yrs (0.8/yr) Moat: Editorial + unicorn rating 6/10 · IP moat: 13 patents rank vs industry peers · Fliar Intelligence Index 37/100 | $90M | 6 mo ago | Series A | 16 | Nicole Richards CEO | — | 13 patents Bio-solvent ore leaching and PFAS-binding protein technologies for selective impurity removal. | — |
| 24 | NanoH2O Developer of reverse osmosis membranes for water treatment 76Growth top 13%Funding top 24%Patents top 41%Market top 43% All 8 signals ▾Growthtop 13% Fundingtop 24% Patentstop 41% Markettop 43% Moattop 45% Innovationtop 46% Newsbottom 44% Globalbottom 42% Growth: Headcount 15 → 120 (+700%) across vintages · Fresh capital in last 24 mo Funding: Raised $89.9M across 8 rounds · 8 rounds over 19 yrs (0.4/yr) rank vs industry peers · Fliar Intelligence Index 76/100 | $90M | 6 mo ago | Acquired | 120 | — | — | 95 patents Enhanced thin‑film composite membrane technology for high‑flux water desalination | — |
| 25 | Utility Global Provider of solutions to convert waste gas into hydrogen and syngas 72Growth top 15%Patents top 16%Innovation top 19%Funding top 19% All 10 signals ▾Growthtop 15% Patentstop 16% Innovationtop 19% Fundingtop 19% Newstop 22% Moattop 29% Talenttop 38% Globalbottom 42% Partnersbottom 35% Marketbottom 27% Growth: Fresh capital in last 24 mo Patents: 222 patents matched (strict assignee match) · 150 filings since 2022 vs 65 in 2017-21 rank vs industry peers · Fliar Intelligence Index 72/100 | $86M | 3 mo ago | Series D | 4 | Matt Dawson Founder & Special Advisor | 7 signals ▲133% Funding · Capital raise · Contracts | 222 patents Electrochemical production of hydrogen and syngas from ammonia and carbon-containing feedstocks | — |
| 26 | Budderfly Provider of energy management solutions and services for buildings 76Innovation top 19%Patents top 19%Funding top 22%Growth top 27% All 11 signals ▾Innovationtop 19% Patentstop 19% Fundingtop 22% Growthtop 27% Newstop 30% Moattop 32% Producttop 33% Techtop 41% Talenttop 41% Marketbottom 49% Globalbottom 36% Innovation: 68 patents (top 23% of patent-holders) · 43 filings since 2022 vs 9 in 2017-21 Patents: 68 patents matched (strict assignee match) · 43 filings since 2022 vs 9 in 2017-21 rank vs industry peers · Fliar Intelligence Index 76/100 | $85M | 2 mo ago | Acquired | 103 | Al Subbloie Founder & CEO | 5 signals ▲150% Capital raise · Earnings | 68 patents Patents concentrated in computing, sensing & instrumentation | 2 partnerships |
| 27 | GridCARE Provider of AI data center power solutions leveraging existing grid infrastructure 50Funding top 22%Talent top 38%AI top 45%Global bottom 48% All 6 signals ▾Fundingtop 22% Talenttop 38% AItop 45% Globalbottom 48% Techbottom 44% Marketbottom 35% Funding: Raised $77.5M across 2 rounds · 2 rounds over 1 yrs (2.0/yr) Talent: 2 named leaders on record · 2 C-suite/founder profiles curated rank vs industry peers · Fliar Intelligence Index 50/100 | $78M | 1 mo ago | Series A | — | Ram Rajagopal Co-Founder | — | — | 1 partnership |
| 28 | Noveon Provider of magnet recycling solutions 60Funding top 21%Patents top 22%Moat top 23%Partners top 31% All 11 signals ▾Fundingtop 21% Patentstop 22% Moattop 23% Partnerstop 31% Innovationtop 32% Growthtop 36% Newstop 36% Techtop 41% Talentbottom 49% Globalbottom 42% Marketbottom 37% Funding: Raised $75.0M across 4 rounds · 4 rounds over 4 yrs (1.0/yr) Patents: 220 patents matched (strict assignee match) · Latest publication 2021 rank vs industry peers · Fliar Intelligence Index 60/100 | $75M | 4 mo ago | Series C | 12 | Scott Dunn Co-Founder & CEO | 5 signals Contracts · Funding · Capital raise | 220 patents Waterborne polymer dispersions and coated polymer composites for textiles, cosmetics, and construction | — |
| 29 | Ardent Technology solution for carbon capture 32Funding top 18%Moat top 38%Patents top 45%Talent bottom 49% All 8 signals ▾Fundingtop 18% Moattop 38% Patentstop 45% Talentbottom 49% Techbottom 47% Innovationbottom 46% Globalbottom 40% Marketbottom 29% Funding: Raised $74.3M across 66 rounds · 66 rounds over 22 yrs (3.0/yr) Moat: Editorial + unicorn rating 4/10 · IP moat: 22 patents rank vs industry peers · Fliar Intelligence Index 32/100 | $74M | 6 mo ago | Series B | 20 20 → 48 (+140%) · sector median +52% | Erica Nemser CEO | — | 22 patents Patents concentrated in chemistry & materials | — |
| 30 | Torus Manufacturer of power generators and energy management app 40Patents top 24%Funding top 29%Innovation top 30%Tech top 30% All 11 signals ▾Patentstop 24% Fundingtop 29% Innovationtop 30% Techtop 30% Growthtop 35% Producttop 36% Talenttop 38% Globalbottom 40% Moatbottom 40% Marketbottom 14% Fin. healthbottom 8% Patents: 56 patents matched (strict assignee match) · 54 filings since 2022 vs 0 in 2017-21 Funding: Raised $67.0M across 3 rounds · 3 rounds over 2 yrs (1.5/yr) rank vs industry peers · Fliar Intelligence Index 40/100 | $67M | 1 mo ago | Series D | 1 | Nate Walkingshaw Co-Founder & CEO | — | 56 patents Flywheel-based mechanical energy storage with magnetic bearings and AI management | 1 partnership · 2 awards |
| 31 | Switched Source Developer of hardware-based system for distributed energy resources 40Innovation top 23%Funding top 34%Talent top 41%Product top 43% All 7 signals ▾Innovationtop 23% Fundingtop 34% Talenttop 41% Producttop 43% Techbottom 41% Globalbottom 29% Marketbottom 21% Innovation: 10 product lines · Deep-tech classification: Tech Hardware Funding: Raised $66.7M across 6 rounds · 6 rounds over 9 yrs (0.7/yr) rank vs industry peers · Fliar Intelligence Index 40/100 | $67M | 1 mo ago | Seed | 8 | Lane Nelson Co-Founder | — | — | — |
| 32 | Emerald Developer of a platform optimizing power grids and artificial intelligence infrastructure 50Funding top 25%AI top 30%Global top 45%Talent bottom 49% All 6 signals ▾Fundingtop 25% AItop 30% Globaltop 45% Talentbottom 49% Marketbottom 40% Techbottom 38% Funding: Raised $66.5M across 3 rounds · 3 rounds over 2 yrs (1.5/yr) AI: Classified as an AI company · Product described with: artificial intelligence rank vs industry peers · Fliar Intelligence Index 50/100 | $67M | 4 mo ago | Seed | — | Varun Sivaram Founder & CEO | — | — | 3 partnerships · 1 award |
| 33 | M2X Energy Provider of mobile methane-to-methanol conversion systems 40Funding top 28%Growth top 35%Talent top 38%Tech bottom 43% All 7 signals ▾Fundingtop 28% Growthtop 35% Talenttop 38% Techbottom 43% Globalbottom 36% Marketbottom 27% Newsbottom 22% Funding: Raised $60.0M across 5 rounds · 5 rounds over 5 yrs (1.0/yr) Growth: Fresh capital in last 24 mo rank vs industry peers · Fliar Intelligence Index 40/100 | $60M | 3 mo ago | Series B | 16 | Anthony Dean Co-Founder & COO | — | — | — |
| 34 | Nth Cycle Provider of electronics and li-ion battery recycling technology 50Funding top 24%Talent top 28%Growth top 35%Moat top 39% All 9 signals ▾Fundingtop 24% Talenttop 28% Growthtop 35% Moattop 39% Partnerstop 40% Newsbottom 45% Marketbottom 40% Globalbottom 38% Techbottom 35% Funding: Raised $59.7M across 9 rounds · 9 rounds over 7 yrs (1.3/yr) Talent: 3 named leaders on record · 3 C-suite/founder profiles curated rank vs industry peers · Fliar Intelligence Index 50/100 | $60M | 1 mo ago | Series B | 37 | Megan O'Connor Co-Founder & CEO | — | — | 1 partnership |
| 35 | Tantalus Communication technology provider for smart grids 53Funding top 22%News top 22%Growth top 33%Moat top 48% All 9 signals ▾Fundingtop 22% Newstop 22% Growthtop 33% Moattop 48% Techtop 49% Marketbottom 44% Globalbottom 44% Talentbottom 40% Partnersbottom 35% Funding: Raised $58.7M across 8 rounds · 8 rounds over 22 yrs (0.4/yr) News: 11 BI events in 12 mo (of 29 tracked, 7 types) · +1000% YoY rank vs industry peers · Fliar Intelligence Index 53/100 | $59M | 4 mo ago | Public | 42 | Ramatoulie Deen Founder/Executive Director | 11 signals ▲1000% Earnings · Announcements · Contracts | — | 1 launch |
| 36 | Sage Geosystems Developer of geo-thermal energy projects 48Innovation top 17%Patents top 25%Funding top 33%Growth top 35% All 10 signals ▾Innovationtop 17% Patentstop 25% Fundingtop 33% Growthtop 35% Moattop 45% Newstop 46% Talentbottom 49% Techbottom 36% Globalbottom 36% Marketbottom 12% Innovation: 72 patents (top 25% of patent-holders) · 69 filings since 2022 vs 3 in 2017-21 Patents: 72 patents matched (strict assignee match) · 69 filings since 2022 vs 3 in 2017-21 rank vs industry peers · Fliar Intelligence Index 48/100 | $57M | 4 mo ago | Series B | 9 | Cindy Taff Chief Executive Officer | — | 72 patents Geothermal and geopressure energy extraction, cycling, and subsurface storage technologies | 1 internship · 1 partnership |
| 37 | Radiant Nuclear 🦄 Developer of portable nuclear microreactors designed to replace diesel generators 55Funding top 26%Growth top 28%Moat top 37%Market bottom 49% All 8 signals ▾Fundingtop 26% Growthtop 28% Moattop 37% Marketbottom 49% Talentbottom 49% Techbottom 41% Globalbottom 32% Partnersbottom 32% Funding: Raised $55.0M across 7 rounds · 7 rounds over 6 yrs (1.2/yr) Growth: Web rank 10,000,000 → 5,000,000 YoY · Fresh capital in last 24 mo rank vs industry peers · Fliar Intelligence Index 55/100 | $55M | 6 mo ago | Series D | 34 | Doug Bernauer Founder & CEO | — | — | — |
| 38 | Aether Fuels Developer of technology converting waste carbon into sustainable liquid fuels 40Funding top 23%Growth top 35%News top 46%Moat top 48% All 9 signals ▾Fundingtop 23% Growthtop 35% Newstop 46% Moattop 48% Talentbottom 49% Globalbottom 39% Marketbottom 35% Partnersbottom 35% Techbottom 32% Funding: Raised $45.4M across 3 rounds · 3 rounds over 3 yrs (1.0/yr) Growth: Web rank 50,000,000 → 10,000,000 YoY · Fresh capital in last 24 mo rank vs industry peers · Fliar Intelligence Index 40/100 | $45M | 5 mo ago | Series A | — | Conor Madigan Founder and CEO | 4 signals Incorporation · Funding · Contracts | — | 1 launch · 1 award |
| 39 | Verdigris AI and SaaS-driven energy analytics platform for the management of facilities and commercial buildings 48Funding top 23%Growth top 28%Talent top 28%Moat top 41% All 11 signals ▾Fundingtop 23% Growthtop 28% Talenttop 28% Moattop 41% Techtop 42% Producttop 46% Newsbottom 41% Globalbottom 39% Marketbottom 32% Innovationbottom 31% Patentsbottom 24% Funding: Raised $41.7M across 13 rounds · 13 rounds over 15 yrs (0.9/yr) Growth: Headcount 20 → 27 (+35%) across vintages · Fresh capital in last 24 mo rank vs industry peers · Fliar Intelligence Index 48/100 | $42M | 3 mo ago | Series B | 27 | Mark Chung Co-Founder & CEO | — | 2 patents Electrical load identification and disaggregation via waveform analysis for power monitoring | — |
| 40 | SmartAC.com Provider of a platform for HVAC membership program management and growth 48Funding top 32%Partners top 32%Tech top 34%Growth top 35% All 11 signals ▾Fundingtop 32% Partnerstop 32% Techtop 34% Growthtop 35% Moattop 39% Producttop 40% Customerstop 49% Talentbottom 49% Newsbottom 39% Marketbottom 32% Globalbottom 29% Funding: Raised $38.6M across 6 rounds · 6 rounds over 6 yrs (1.0/yr) Partners: 2 partnership announcements in 12 mo (2 in 24 mo) rank vs industry peers · Fliar Intelligence Index 48/100 | $39M | 2 mo ago | Series B | 34 | Josh Teekell Founder & CEO | — | — | — |
| 41 | Terraform Industries Developer of natural gas from carbon capture technology 19Talent top 38%Growth top 45%Funding top 48%Global bottom 37% All 6 signals ▾Talenttop 38% Growthtop 45% Fundingtop 48% Globalbottom 37% Marketbottom 25% Techbottom 15% Talent: 2 named leaders on record · 2 C-suite/founder profiles curated Growth: Web rank 10,000,000 → 50,000,000 YoY · Fresh capital in last 24 mo rank vs industry peers · Fliar Intelligence Index 19/100 | $38M | 2 mo ago | Series A | 9 | Casey Handmer Co-Founder | — | — | — |
| 42 | Living Carbon Provider of biotechnology based carbon storage solutions 53Partners top 18%Funding top 23%Growth top 25%News top 28% All 9 signals ▾Partnerstop 18% Fundingtop 23% Growthtop 25% Newstop 28% Moattop 39% Talentbottom 49% Techbottom 42% Marketbottom 40% Globalbottom 39% Partners: 5 contract events in 12 mo · Named contractor/client in 5 deals Funding: Raised $36.0M across 5 rounds · 5 rounds over 4 yrs (1.2/yr) rank vs industry peers · Fliar Intelligence Index 53/100 | $36M | 1 mo ago | Series A | 25 25 → 38 (+52%) · sector median +52% | Maddie Hall Co-Founder & CEO | 5 signals ▲67% Contracts | — | — |
| 43 | Halcyon Provider of AI-assisted search and information platform for energy professionals 45Funding top 25%Talent top 38%Patents top 39%Innovation top 42% All 7 signals ▾Fundingtop 25% Talenttop 38% Patentstop 39% Innovationtop 42% Techbottom 46% Marketbottom 37% Globalbottom 35% Funding: Raised $31.8M across 2 rounds · 2 rounds over 2 yrs (1.0/yr) Talent: 2 named leaders on record · 2 C-suite/founder profiles curated rank vs industry peers · Fliar Intelligence Index 45/100 | $32M | 3 mo ago | Series A | — | Bruce F Founder & CEO | — | 13 patents High‑pressure lipid extraction, infusion and bonding equipment for oil processing | — |
| 44 | Saphlux Developer of III-V Group-based semiconductor materials 40Talent top 15%Product top 25%Funding top 30%Moat top 32% All 9 signals ▾Talenttop 15% Producttop 25% Fundingtop 30% Moattop 32% Patentstop 38% Innovationtop 40% Techbottom 44% Globalbottom 40% Marketbottom 20% Talent: Analyst team rating 5/5 Product: 6 distinct product lines · Company stage: Series C rank vs industry peers · Fliar Intelligence Index 40/100 | $22M | 2 mo ago | Series C | 3 | — | — | 32 patents Micro-LED manufacturing processes and quantum‑dot integrated semiconductor display technologies. | 1 partnership |
| 45 | Trillium Renewable Chemicals Manufacturer of green acrylonitrile and acetonitrile from biorenewable feedstocks 19Funding top 29%Moat top 48%Talent bottom 49%Global bottom 38% All 6 signals ▾Fundingtop 29% Moattop 48% Talentbottom 49% Globalbottom 38% Newsbottom 33% Marketbottom 23% Funding: Raised $21.9M across 5 rounds · 5 rounds over 5 yrs (1.0/yr) Moat: Editorial + unicorn rating 5/10 · 9 curated direct competitors tracked rank vs industry peers · Fliar Intelligence Index 19/100 | $22M | 1 mo ago | Series B | 3 | Corey Tyree Founder & CEO | — | — | — |
| 46 | HELIXintel Provider of SaaS-driven maintenance management software for commercial spaces 45Growth top 28%Funding top 33%Global bottom 48%Product bottom 47% All 7 signals ▾Growthtop 28% Fundingtop 33% Globalbottom 48% Productbottom 47% Techbottom 46% Marketbottom 32% Newsbottom 27% Growth: Web rank 50,000,000 → 10,000,000 YoY · Fresh capital in last 24 mo Funding: Raised $21.4M across 5 rounds · 5 rounds over 6 yrs (0.8/yr) rank vs industry peers · Fliar Intelligence Index 45/100 | $21M | 2 mo ago | Series A | 28 | — | — | — | — |
| 47 | Rebound Developer of industrial cooling technology with built-in energy storage 27Funding top 32%Moat top 37%Talent top 38%Product bottom 45% All 9 signals ▾Fundingtop 32% Moattop 37% Talenttop 38% Productbottom 45% Innovationbottom 43% Patentsbottom 39% Globalbottom 39% Marketbottom 27% Newsbottom 24% Funding: Raised $17.9M across 16 rounds · 16 rounds over 11 yrs (1.5/yr) Moat: Editorial + unicorn rating 7/10 · IP moat: 8 patents rank vs industry peers · Fliar Intelligence Index 27/100 | $18M | 2 mo ago | Series A | 7 | Russell Goldfarbmuren Co-Founder & CTO | — | 8 patents Thermal energy recovery and heat pump technologies with smart inventory control | 1 job opening · 2 launchs |
| 48 | NovaSolix Developer of rectenna-based solar technology for various applications and sectors 32Moat top 25%Funding top 33%Talent top 34%Patents top 41% All 7 signals ▾Moattop 25% Fundingtop 33% Talenttop 34% Patentstop 41% Innovationtop 47% Globalbottom 33% Marketbottom 25% Moat: Editorial + unicorn rating 6/10 · IP moat: 42 patents Funding: Raised $16.1M across 3 rounds · 3 rounds over 6 yrs (0.5/yr) rank vs industry peers · Fliar Intelligence Index 32/100 | $16M | 2 mo ago | Series C | 12 | Bob Cousins Co-Founder | — | 42 patents Solar-powered antenna arrays and low‑power semi‑reflective display technologies | 3 launchs · 2 partnerships |
| 49 | Star Catcher Space-based energy grid solutions for space operations 50Talent top 28%Funding top 32%Growth top 35%Moat top 39% All 7 signals ▾Talenttop 28% Fundingtop 32% Growthtop 35% Moattop 39% Techtop 45% Globalbottom 36% Marketbottom 32% Talent: 3 named leaders on record · 3 C-suite/founder profiles curated Funding: Raised $12.2M across 2 rounds · 2 rounds over 2 yrs (1.0/yr) rank vs industry peers · Fliar Intelligence Index 50/100 | $12M | 1 mo ago | Series A | — | Andrew Rush Co-founder and CEO | — | — | 6 job openings |
| 50 | TrashieCash Provider of textile recycling services for clothing and household items 48Tech top 19%Funding top 32%Growth top 45%Talent bottom 49% All 8 signals ▾Techtop 19% Fundingtop 32% Growthtop 45% Talentbottom 49% Productbottom 48% Marketbottom 43% Globalbottom 29% Customersbottom 1% Tech: 67 technologies across 6/8 capability areas · Cloud: Amazon S3, Amazon Web Services Funding: Raised $10.0M across 1 rounds · 1 rounds over 1 yrs (1.0/yr) rank vs industry peers · Fliar Intelligence Index 48/100 | $10M | 0 mo ago | Series A | — | Kristy Caylor Founder & CEO | — | — | 1 launch |
Top 12 Environment Tech companies in United States
#1
Nexamp 🦄Series E · Boston, Massachusetts · founded 2007 · 331 employees$1.3Braised▾
Nexamp 🦄
Series E · Boston, Massachusetts · founded 2007 · 331 employees
Provider of community solar programs and energy solutions for businesses. It offers community solar subscriptions, enabling savings on electricity costs without rooftop panels. It delivers energy storage solutions and power purchase agreements for commercial users. It also offers community solar programs with no rooftop panels, sign-up fees, or long-term contracts, enabling savings on electricity costs. It focuses on clean energy asset development, customer acquisition, and management, minimizing risk for counterparties.
Fliar Intelligence Index™ 76how this company ranks against its industry peers
Funding
top 12%Tech
top 23%Moat
top 23%Talent
top 35%Market
top 38%Growth
top 43%Funding: Raised $1.3B across 12 rounds · 12 rounds over 16 yrs (0.8/yr) · Last round Conventional Debt (Apr 2026)
Tech: 42 technologies across 6/8 capability areas · Cloud: Cloudflare · Devops: Envoy
Moat: Editorial + unicorn rating 9/10 · Unicorn · 4 curated direct competitors tracked
Audience (LinkedIn): 42k LinkedIn followers — 3.8% of this cohort's audience · 55 engagements/post (1.8× cohort median)
Activity (LinkedIn): 1 awards announced in 12 mo
Funding rounds
- Apr 2026Conventional Debt$200M
- Feb 2026Series E$180M
- Mar 2024Series E$520M
- Jun 2023Conventional Debt—
Founders & team
Investors
US Bank, MUFG, Generate Capital, Good Energies, RCG, PJC
Tech stack
Apple Icloud MailAwinBootstrapCloudflareCloudflare Bot ManagementCore-Js
#2
Series E · Carson City, Nevada · founded 2017 · 516 employees$1.9Braised▾
Series E · Carson City, Nevada · founded 2017 · 516 employees
Provider of repurposed battery packs for modular energy storage systems. It offers energy solutions by repurposing used battery packs into modular energy storage systems. The company recycles and refines lithium-ion batteries, recovering valuable materials. It focuses on creating scalable energy storage solutions by utilizing battery packs with remaining capacity. The company provides an alternative to traditional grid expansion by offering a lower-cost, faster path to energy storage.
Fliar Intelligence Index™ 82how this company ranks against its industry peers
Funding
top 11%News
top 15%Growth
top 25%Moat
top 26%Market
top 32%Product
top 41%Funding: Raised $1.9B across 9 rounds · 9 rounds over 9 yrs (1.0/yr) · Last round Series E (Jan 2026)
News: 16 BI events in 12 mo (of 108 tracked, 12 types) · +433% YoY · 5 high-value events (IPO/M&A/funding/contracts) in 12 mo
Growth: Fresh capital in last 24 mo
Audience (LinkedIn): 80k LinkedIn followers — 7.3% of this cohort's audience
Hiring (LinkedIn): 1 hiring post in 12 mo (public)
Activity (LinkedIn): 2 partnerships (incl. General Motors) announced in 12 mo
Funding rounds
- Jan 2026Series E$75M
- Oct 2025Series E$350M
- Aug 2023Series D$1B
- Feb 2023Conventional Debt$2B
Founders & team
Investors
Breakthrough Energy, Capricorn, The Climate Pledge, Goldman Sachs Asset Management, OMERS, Microsoft
Tech stack
Amazon SesAmazon Web ServicesApple Icloud MailCloudflareHstsHttp/3
#3
Gradiant 🦄Series E · Woburn, Massachusetts · founded 2013 · 900 employees$400Mraised▾
Gradiant 🦄
Series E · Woburn, Massachusetts · founded 2013 · 900 employees
Provider of industrial water treatment solutions and technologies. It offers end-to-end, turnkey treatment systems engineered to meet specific customer requirements. Services include water reduction, reclamation, and renewal, recovering valuable resources from wastewater. Custom chemical formulations are developed in-house to support these technologies. The company's solutions address various industrial sectors, focusing on minimizing environmental impact and optimizing water usage. Technologies include those for PFAS removal, lithium extraction, and green hydrogen production.
Fliar Intelligence Index™ 78how this company ranks against its industry peers
Patents
top 21%Moat
top 22%Funding
top 26%Innovation
top 29%Global
top 30%Market
top 33%Patents: 256 patents matched (strict assignee match) · 103 filings since 2022 vs 108 in 2017-21 · Latest publication 2026
Moat: Editorial + unicorn rating 9/10 · IP moat: 256 patents · Unicorn
Funding: Raised $400M across 3 rounds · 3 rounds over 11 yrs (0.3/yr) · Last round Series E (May 2026)
Audience (LinkedIn): 83k LinkedIn followers — 7.6% of this cohort's audience
Funding rounds
- May 2026Series E—
- Oct 2025Conventional Debt$50M
- May 2023Series D$225M
- Jun 2021Series C$104.8M
Founders & team
Investors
Warburg Pincus, SLB, Cranberry Capital, Centaurus Capital, BoltRock Holdings, HSBC
Tech stack
AlgoliaApache Http ServerApple Icloud MailBootstrapCloudflareCloudflare Bot Management
#4
Public · Skokie, Illinois · founded 2005 · 367 employees$869.3Mraised▾
Public · Skokie, Illinois · founded 2005 · 367 employees
Developer of technology converting carbon-rich gases into fuels and chemicals. The company provides solutions for energy security and economic strength. It transforms industrial emissions and gasified waste into ethanol. This ethanol serves as a building block for sustainable aviation fuel and chemical derivatives. The company partners with industries to capture and process carbon-rich gases.
Fliar Intelligence Index™ 78how this company ranks against its industry peers
Patents
top 10%Funding
top 17%News
top 25%Innovation
top 26%Moat
top 26%Product
top 29%Patents: 765 patents matched (strict assignee match) · 530 filings since 2022 vs 213 in 2017-21 · Latest publication 2026
Funding: Raised $869M across 21 rounds · 21 rounds over 21 yrs (1.0/yr) · Last round Post IPO (Jan 2026)
News: 25 BI events in 12 mo (of 124 tracked, 12 types) · +56% YoY · 10 high-value events (IPO/M&A/funding/contracts) in 12 mo
Audience (LinkedIn): 46k LinkedIn followers — 4.1% of this cohort's audience
Activity (LinkedIn): 2 partnerships · 1 awards · 1 expansions (incl. Novo Nordisk Foundation Biotechnology Research Institute for the Green Transition BRIGHT at DTU - Technical University of Denmark (DTU)) announced in 12 mo
Funding rounds
- Jan 2026Post IPO$20M
- Jun 2025Grant (prize money)$2.5M
- Apr 2025Grant (prize money)$1.9M
- Jan 2025Grant (prize money)$2.5M
Founders & team
Investors
DOE, Oak Ridge National Laboratory, University of Michigan, Sinopec Shanghai Petrochemical Company Limited, Malaysian Life Sciences Capital Fund, Khosla Ventures
Tech stack
Acquia Cloud PlatformAcquia Cloud Site FactoryAdobe AnalyticsAdobe Experience Platform Identity ServiceAdobe Experience Platform LaunchAkamai
#5
Series F · Boston, Massachusetts · founded 2016 · 124 employees$250Mraised▾
Series F · Boston, Massachusetts · founded 2016 · 124 employees
AI-powered weather intelligence platform using satellites for real-time forecasting. It combines satellite data, machine learning, and real-time atmospheric modeling to deliver hyperlocal forecasts and predictive insights. It helps industries like aviation, energy, logistics, and insurance anticipate weather risks and automate operational decisions.
Fliar Intelligence Index™ 89how this company ranks against its industry peers
Funding
top 16%Customers
top 25%AI
top 26%Moat
top 26%Product
top 27%Tech
top 28%Funding: Raised $250M across 4 rounds · 4 rounds over 9 yrs (0.4/yr) · Last round Series F (May 2026)
Customers: Play-Store rating 4.57★ across 25,899 ratings (2 apps) · Review volume +2% in 6 mo · Marquee-customer mentions: top 30% of tracked companies
AI: Classified as an AI company · Product described with: ai-powered, machine learning
Audience (LinkedIn): 31k LinkedIn followers — 2.8% of this cohort's audience
Activity (LinkedIn): 1 awards announced in 12 mo
Funding rounds
- May 2026Series F$35M
- Feb 2026Series F$175M
- Sep 2023Series E—
- Jun 2023Series E$87M
Founders & team
Investors
Stonecourt Capital, Highland Capital Partners, Activate Capital, Lumir Ventures, MoreTech Ventures, Shavit Capital
Tech stack
AlgoliaAmazon CloudfrontAmazon S3Amazon Web ServicesAppcuesChart.Js
#6
Public · San Francisco, California · founded 2017 · 49 employees$420.2Mraised▾
Public · San Francisco, California · founded 2017 · 49 employees
Developer of next-generation geothermal projects delivering carbon-free energy. It pioneers a new approach to geothermal energy using technologies like horizontal drilling and distributed fiber optic sensing to unlock geothermal resources. It focuses on making geothermal energy a scalable resource and ensures environmental health and safety in its operations. The company aims to decarbonize challenging parts of the electricity sector through geothermal energy.
Fliar Intelligence Index™ 57how this company ranks against its industry peers
Funding
top 8%Talent
top 34%News
top 39%Partners
top 45%Growth
top 47%Tech
top 48%Funding: Raised $420M across 12 rounds · 12 rounds over 5 yrs (2.4/yr) · Last round Conventional Debt (Mar 2026)
Talent: Analyst team rating 4/5 · 2 named leaders on record · 2 C-suite/founder profiles curated
News: 9 BI events in 12 mo (of 26 tracked, 4 types) · -31% YoY · 8 high-value events (IPO/M&A/funding/contracts) in 12 mo
Audience (LinkedIn): 68k LinkedIn followers — 6.2% of this cohort's audience
Activity (LinkedIn): 1 product launches · 3 partnerships (incl. Enhanced Geothermal Systems Deployment Coalition (EGS DC)) announced in 12 mo
Funding rounds
- Mar 2026Conventional Debt$421M
- Dec 2025Series E$462M
- Jun 2025Conventional Debt$105.5M
- Jun 2025Series D$100M
Founders & team
Investors
Breakthrough Energy, Capricorn, 3x5 Partners, Helmerich & Payne, Elemental, DCVC
Tech stack
Apple Icloud MailCloudflareCloudflare Bot ManagementCore-JsElementorFancybox
#7
Series B · Concord, Massachusetts · founded 2005 · 250 employees$1Braised▾
Series B · Concord, Massachusetts · founded 2005 · 250 employees
Provider of recyclable waste management services
Fliar Intelligence Index™ 55how this company ranks against its industry peers
Funding
top 28%Talent
top 38%Tech
top 42%Moat
top 45%Market
top 46%Patents
top 50%Funding: Raised $1.0B across 2 rounds · 2 rounds over 8 yrs (0.2/yr) · Last round Series B (Jan 2026)
Talent: 2 named leaders on record · 2 C-suite/founder profiles curated
Tech: 43 technologies across 3/8 capability areas · Cloud: Cloudflare · Security: Cloudflare Bot Management, Hsts
Audience (LinkedIn): 20k LinkedIn followers · 58 engagements/post (1.9× cohort median)
Activity (LinkedIn): 1 partnerships · 1 expansions (incl. Mamosoft Corporation) announced in 12 mo
Funding rounds
- Jan 2026Series B—
- Mar 2023Series B$1B
- Jul 2018Series A$3.8M
Founders & team
Investors
Ara Partners, Enbridge, Wittington Investments, MissionPoint Partners, Target Accelerators
Tech stack
Alpine.JsApple Icloud MailCdnjsCloudflareCloudflare Bot ManagementCookiebot
#8
Series C · Mesa, Arizona · founded 2020 · 295 employees$170.7Mraised▾
Series C · Mesa, Arizona · founded 2020 · 295 employees
Provider of carbon accounting and sustainability management platform for businesses. The platform offers tools for carbon footprint measurement, analytics, and sustainability reporting. It supports regulatory emissions reporting, stakeholder emissions reporting, and decarbonization management. The platform also provides features for scope 3 supplier engagement and financed emissions accounting. It includes AI-powered capabilities for anomaly detection and emission factor mapping.
Fliar Intelligence Index™ 55how this company ranks against its industry peers
Funding
top 24%Growth
top 35%Moat
top 35%Product
top 36%Talent
top 38%Tech
top 40%Funding: Raised $171M across 6 rounds · 6 rounds over 6 yrs (1.0/yr) · Last round Series C (Apr 2026)
Growth: Fresh capital in last 24 mo
Moat: Editorial + unicorn rating 8/10 · IP moat: 3 patents · Soonicorn
Audience (LinkedIn): 30k LinkedIn followers — 2.7% of this cohort's audience
Activity (LinkedIn): 1 product launches · 1 awards announced in 12 mo
Funding rounds
- Apr 2026Series C$4.3M
- Apr 2025Series C$23M
- Aug 2023Series C$52.7M
- Oct 2021Series B$101M
Founders & team
Investors
Rice Investment Group, Carnrite Group, NGP Energy Technology Partners, Sallyport Investments, The Rise Fund, Prelude Ventures
Tech stack
AmplitudeAtlassian StatuspageCloudflareCloudflare Bot ManagementCookiebotCore-Js
#9
Series B · New York City, New York · founded 2015 · 30 employees$503.9Mraised▾
Series B · New York City, New York · founded 2015 · 30 employees
Online platform for funding solar projects. It is financing and investing entity that offers a platform for individual investors as well as institutional investors to invest in clean energy projects. It identifies, screens, and manages clean energy projects for its investors. Additionally, it offers both equity and debt investments in operating clean energy projects.
Fliar Intelligence Index™ 60how this company ranks against its industry peers
Funding
top 18%Talent
top 28%Growth
top 29%Moat
top 31%Product
top 40%Innovation
top 43%Funding: Raised $504M across 5 rounds · 5 rounds over 11 yrs (0.5/yr) · Last round Conventional Debt (Jan 2026)
Talent: 3 named leaders on record · 3 C-suite/founder profiles curated
Growth: Headcount 15 → 30 (+100%) across vintages · 3 acquisition/expansion moves in 24 mo · Fresh capital in last 24 mo
Audience (LinkedIn): 31k LinkedIn followers — 2.8% of this cohort's audience
Funding rounds
- Jan 2026Conventional Debt$300M
- Jun 2023Series B$500M
- May 2022Conventional Debt$200M
- Apr 2019Series A—
Founders & team
Investors
Rabobank, Seedinvest, Manulife, BlackRock, Infranity, Lorentzen Investments
Tech stack
AddtoanyAddtoany Share ButtonsApple Icloud MailCdnjsCloudflareCloudflare Bot Management
#10
Series D · Houston, Texas · founded 2020 · 44 employees$100Mraised▾
Series D · Houston, Texas · founded 2020 · 44 employees
AI and cloud-driven platform offering microgrids to provide electricity to off-grid areas. It offers solutions that include trailer-mounted custom-engineered switchgear, trailer-mounted Genset, and trailer-mounted energy storage system. The AI-driven platform allows users to track emissions, costs, power usage, equipment diagnostics, equipment operation, and more.
Fliar Intelligence Index™ 74how this company ranks against its industry peers
Funding
top 18%News
top 20%Growth
top 25%Moat
top 28%Partners
top 29%Innovation
top 32%Funding: Raised $100M across 4 rounds · 4 rounds over 5 yrs (0.8/yr) · Last round Series D (May 2026)
News: 8 BI events in 12 mo (of 17 tracked, 4 types) · +167% YoY · 8 high-value events (IPO/M&A/funding/contracts) in 12 mo
Growth: Fresh capital in last 24 mo
Audience (LinkedIn): 18k LinkedIn followers
Funding rounds
- May 2026Series D$775M
- Nov 2025Conventional Debt$5B
- Jul 2022Conventional Debt$60M
- Dec 2021Series C$100M
Founders & team
Investors
BMO, Export Development Canada, Carnelian Energy Capital, Pilot Company, CPP Investments, Longbow Capital
Tech stack
Amazon Web ServicesApple Icloud MailCloudflareCloudflare Bot ManagementCloudflare TurnstileContact Form 7
#11
Public · Thornton, Colorado · founded 2005 · 16 employees$265.2Mraised▾
Public · Thornton, Colorado · founded 2005 · 16 employees
Manufacturer of flexible thin-film solar panels for varied applications. These photovoltaic modules are suitable for airborne vehicles, space missions, and agrivoltaic installations. The company utilizes CIGS chemistries with roll-to-roll manufacturing processes. The panels are built on a thin polyamide substrate.
Fliar Intelligence Index™ 37how this company ranks against its industry peers
Product
top 14%News
top 25%Funding
top 30%Growth
top 30%Innovation
top 39%Patents
top 42%Product: 4 distinct product lines · Company stage: Public
News: 6 BI events in 12 mo (of 88 tracked, 11 types) · +200% YoY · 5 high-value events (IPO/M&A/funding/contracts) in 12 mo
Funding: Raised $265M across 33 rounds · 33 rounds over 19 yrs (1.7/yr) · Last round Post IPO (Jan 2026)
Audience (LinkedIn): 4k LinkedIn followers
Funding rounds
- Jan 2026Post IPO$25M
- Dec 2025Post IPO$2M
- Oct 2024Post IPO$1.9M
- Apr 2023Post IPO$9M
Founders & team
Investors
Ironridge Global Partners, Hydro, Arion Agrophotovoltaic, Tritium Partners, Terminus Capital Partners
Tech stack
CloudflareCloudflare Bot ManagementCore-JsHstsHttp/3Hubspot
#12
Series D · San Jose, California · founded 2018 · 75 employees$190Mraised▾
Series D · San Jose, California · founded 2018 · 75 employees
Developer of thermal management solutions for data centers and electronic devices. The company offers direct-to-chip liquid cooling and solid-state active air cooling products. These cooling solutions are applicable to consumer devices, industrial embedded systems, and data centers. The company's products aim to improve performance and enable compact designs.
Fliar Intelligence Index™ 72how this company ranks against its industry peers
Innovation
top 16%Patents
top 17%Funding
top 18%Moat
top 33%News
top 34%Growth
top 35%Innovation: 194 patents (top 16% of patent-holders) · 163 filings since 2022 vs 31 in 2017-21 · Deep-tech classification: Tech Hardware
Patents: 194 patents matched (strict assignee match) · 163 filings since 2022 vs 31 in 2017-21 · Latest publication 2026
Funding: Raised $190M across 3 rounds · 3 rounds over 8 yrs (0.4/yr) · Last round Series D (Mar 2026)
Audience (LinkedIn): 9k LinkedIn followers
Funding rounds
- Mar 2026Series D$143M
- May 2024Series C$90M
- Dec 2022Series B$100M
- 2018Series A—
Founders & team
Investors
Qualcomm Ventures, Mayfield, Clear Ventures, Addition, Fidelity Investments, Prosperity7 Ventures
Tech stack
CloudflareCloudflare Bot ManagementGoogle Font ApiGoogle Hosted LibrariesHstsHttp/3
Funding & investor landscape
$67.1Btotal disclosed funding
1,788companies funded
6,137disclosed rounds
33rounds last 90 days
Most active investors
Notable founders
Zaid Ashai
CEO · Nexamp
Jb Straubel
founder · Redwood Materials
Anurag Bajpayee
Co-Founder & CEO · Gradiant
Sean Simpson
Co-Founder · LanzaTech
Jennifer Holmgren
CEO · LanzaTech
Hagit Messer
Co-Founder · Tomorrow.io
Itai Zlotnik
CCO · Tomorrow.io
Jack Norbeck
Co-Founder and CTO · Fervo Energy
Tim Latimer
Co-Founder · Fervo Energy
Ryan Begin
Co-Founder & CEO · Divert
Bob Watkins
Chief Operating Officer · Divert
Jason Offerman
President · Persefoni
Prism market signals · United States · country-scoped Prism corpus, 1,832,914 docs
Market landscape — 10 sub-themes by coverage
Share of Environment Tech coverage by sub-theme.
Regulatory-risk over time rising
Funding & growth over time
funding rising · growth rising
RESEARCH SIGNALS · United States
How research on Environmental Monitoring is moving in the United States
A read on the academic research around Environmental Monitoring — which themes are gaining ground, the institutions and researchers driving them, and how the tone is shifting. Based on 3,039 United States-affiliated papers.
research sentiment over time
200820172026
enthusiastic · positive · guarded tone
Tone is overwhelmingly optimistic and softening — the enthusiastic (strongly-positive) share moved 41% → 38% across 2008–2026.
top research entities
- United States Geological Survey157
- Cary Institute of Ecosystem Studies112
- Environmental Protection Agency84
- National Research Council79
- National Park Service76
leading researchers
Kelly, Vicky · Kelly, Victoria · Catalyst Cooperative · U.S. DOE EM · McIntyre, Cheryl · Stocker-Waldhuber, Martin · Seiser, Bernd · Hartl, Lea
▲
Breakthroughs481 · 16%
▲ 12%→18% share
▲1.5× share momentum0 median citations77% since 2021mostly methods-led
Software deployment breakthroughs surged 2→31 papers, signaling rapidly rising computational tools in US environmental monitoring research.
rising sub-themes (early→recent)
- Software deployment2→31
- Pollution3→27
- Air quality index1→25
- Water quality10→34
- Air pollution3→25
Newly emergingScalability 0→21 · Biodiversity 0→18 · Climate change 0→14
Landmark Environmental sensor networks in ecological research · 165 cites
◆
Advancements804 · 26%
▼ 31%→24% share
▼0.8× share momentum0 median citations64% since 2021mostly methods-led
Air quality index advancements intensified sharply — papers rose 14→60, now the dominant advancement sub-topic in US environmental monitoring.
rising sub-themes (early→recent)
- Air quality index14→60
- Air pollution8→51
- Pollutant4→32
- Sampling (signal processing)14→42
- Water quality23→48
Newly emergingKey (lock) 0→17 · Range (aeronautics) 0→10 · Microplastics 0→10
Landmark Tracking complex mixtures of chemicals in our changing environment · 716 cites
▼
Concerns626 · 21%
▼ 21%→20% share
▲1.0× share momentum0 median citations68% since 2021mostly empirical
Microplastics concern is newly emerging — jumping from zero to 19 papers alongside brand-new marine debris and agriculture signals.
rising sub-themes (early→recent)
- Human health1→32
- Pollution4→33
- Air quality index6→31
- Pollutant6→28
- Biodiversity1→22
Newly emergingMicroplastics 0→19 · Agriculture 0→18 · Marine debris 0→14
Landmark Past, present, and future perspectives of environmental DNA (eDNA) metabarcoding: A systematic review in methods, monito · 1,184 cites
RESEARCH HOTSPOTS · United States
Where environmental monitoring is researched across United States
Location clusters by institution affiliation — each city's volume, stance tone, and a quick read on its hot topic, what's advancing, the opening opportunity, and the main concern.
SF Bay Area80 · +0.27
Boston61 · +0.43
New York54 · +0.35
Seattle53 · +0.24
Los Angeles37 · +0.39
San Diego33 · +0.26
Atlanta32 · +0.25
Ann Arbor22 · +0.24
Pittsburgh19 · +0.37
Philadelphia19 · +0.41
PATENT SIGNAL · United States
Who's filing environmental monitoring patents in the United States
United States environmental monitoring patent filing is accelerating — 450 filings from 343 assignees (2016–2025), led by LEEO, Valencell, United Parcel Service; annual filings 47→49.
450 filings343 assigneespeak 60/yr2016–2025
filing momentum (YoY 2016–2025)
top patent filers
- LEEO41
- Valencell25
- United Parcel Service21
- Honeywell INT20
- Apple18
- Venturedyne18
- Pillar TECH17
- IND Scient16
Common questions
How many Environment Tech companies are there in United States?
Radar tracks 4909 indexable Environment Tech companies headquartered in United States that meet our profile-completeness bar.
What is the total funding raised by Environment Tech companies in United States?
The Environment Tech companies in United States on this list have raised a combined $67.1B in disclosed equity funding across 1788 funded companies.
Which is the highest-funded Environment Tech company in United States?
View is the highest-funded Environment Tech company in United States, with $3.5B in disclosed equity funding.
How many Environment Tech companies in United States are funded?
1788 of the 4909 Environment Tech companies in United States on this list have disclosed at least one equity funding round.
How many Environment Tech unicorns are there in United States?
23 Environment Tech companies in United States on this list are valued at $1B or more.
Who are the top investors in United States Environment Tech companies?
The most active investors in United States Environment Tech companies on this list include OSTI, National Science Foundation, DOE, Climate Capital, Techstars.
Riya SenguptaFinancials
Riya reads income statements for fun. She covers the real money in a sector — revenue, growth, who actually earns — and never met a vague claim she didn't want a number for.