Radar · Environment Tech in San Francisco
Best Environment Tech Companies in San Francisco, United States
The 240 best Environment Tech companies in San Francisco, United States in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: Redaptive.
By Rohit KhannaTrends & Stories
240companies tracked
$5.3Bdisclosed funding
4unicorns
132have raised
FLIAR INTELLIGENCE · ENVIRONMENT TECH × SAN FRANCISCO
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
644kcombined LinkedIn audience
33%of audience held by top 3
8companies hiring publicly (12 mo)
Ranked: Best Environment Tech companies in San Francisco
| # | Company | Disclosed funding | Last round | Stage | Employees | Tech stack | Web popularity | Patents & IP focus | Recent signals |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 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 | WordPressMySQLPHP+27 | Top 5M | — | — |
| 2 | Xpansiv 🦄 Offsets and renewable energy marketplace | $712M | 41 mo ago | Series D | 277 | WordPressApple iCloud MailMicrosoft 365+28 | Top 5M | — | 3 partnerships |
| 3 | Aurora Solar 🦄 Provider of software for solar and storage system design and sales | $537M | 51 mo ago | Series D | 135 135 → 302 (+124%) · sector median +52% | WordPressApple iCloud MailGoogle Workspace+37 | Top 500k | 33 patents Automated 3D building modeling and estimation using computer vision and AI algorithms. | — |
| 4 | 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 | WordPressApple iCloud MailMicrosoft 365+25 | Top 5M | — | 1 launch · 3 partnerships |
| 5 | 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 | WebflowApple iCloud MailGoogle Workspace+22 | Top 1M | 78 patents Smart electrical panel and load management systems for residential/commercial energy control | 1 job opening |
| 6 | 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 | SanityTurbopackNode.js+25 | Top 5M | 31 patents Shear‑resistant geomembranes and waterproof modular bags for containment and protective applications | — |
| 7 | Particle Developer of a prototype to production connectivity platform for IoT 55Tech top 23%Funding top 24%Customers top 24%News top 30% All 12 signals ▾Techtop 23% Fundingtop 24% Customerstop 24% Newstop 30% Moattop 35% Growthtop 40% Producttop 47% Talentbottom 49% Marketbottom 47% Patentsbottom 39% Globalbottom 39% Innovationbottom 35% Tech: 67 technologies across 6/8 capability areas · Cloud: Amazon Cloudfront, Amazon S3 Funding: Raised $130M across 8 rounds · 8 rounds over 12 yrs (0.7/yr) rank vs industry peers · Fliar Intelligence Index 55/100 | $130M | 15 mo ago | Acquired | 109 109 → 110 (+1%) · sector median +52% | Cart FunctionalityShopifyApple iCloud Mail+31 | Top 5M | 5 patents Pharma skin‑inflammation formulations, audio speaker hardware, VR headset devices, graphic‑design software. | 1 launch |
| 8 | Built Robotics Develops automated dozer robots for the construction industry | $112M | 50 mo ago | Series C | 25 25 → 41 (+64%) · sector median +52% | Craft CMSApple iCloud MailGoogle Workspace+16 | Top 10M | 142 patents Autonomous earth‑moving and pile‑driving equipment with AI navigation and control | 2 partnerships |
| 9 | Charm Industrial Operator of carbon removal technology converting biomass into bio-oil for sequestration | $108M | 32 mo ago | Series B | 92 92 → 104 (+13%) · sector median +52% | SentryApple iCloud MailGoogle Workspace+19 | Top 10M | — | 3 job openings |
| 10 | Equilibrium Energy Provider of software solutions for portfolio management 60Funding top 22%Growth top 32%Talent top 38%Moat bottom 48% All 7 signals ▾Fundingtop 22% Growthtop 32% Talenttop 38% Moatbottom 48% Globalbottom 45% Marketbottom 42% Newsbottom 21% Funding: Raised $102M across 5 rounds · 5 rounds over 5 yrs (1.0/yr) Growth: Headcount 18 → 43 (+139%) across vintages · Fresh capital in last 24 mo rank vs industry peers · Fliar Intelligence Index 60/100 | $102M | 15 mo ago | Series B | 43 43 → 97 (+126%) · sector median +52% | — | Top 10M | — | — |
| 11 | Molekule Manufacturer of air purification and humidification devices with filtration technology 50Funding top 28%Innovation top 29%Patents top 29%Product top 34% All 13 signals ▾Fundingtop 28% Innovationtop 29% Patentstop 29% Producttop 34% Moattop 38% Techtop 41% Growthtop 45% Customerstop 50% Talentbottom 49% Marketbottom 44% Globalbottom 40% Newsbottom 36% Fin. healthbottom 29% Funding: Raised $97.9M across 6 rounds · 6 rounds over 10 yrs (0.6/yr) Innovation: 77 patents (top 23% of patent-holders) · 39 filings since 2022 vs 38 in 2017-21 rank vs industry peers · Fliar Intelligence Index 50/100 | $98M | 13 mo ago | Public | 92 92 → 81 (-12%) · sector median +52% | ShopifyApple iCloud MailMicrosoft 365+16 | Top 1M | 77 patents Indoor air purification using photocatalytic and UV-based filtration technologies | — |
| 12 | Metronome Usage-based invoice management solutions for small businesses 60Funding top 24%Talent top 28%Moat top 31%Growth top 35% All 8 signals ▾Fundingtop 24% Talenttop 28% Moattop 31% Growthtop 35% Techtop 39% Marketbottom 41% Globalbottom 32% Newsbottom 20% Funding: Raised $78.0M across 4 rounds · 4 rounds over 4 yrs (1.0/yr) Talent: 3 named leaders on record · 3 C-suite/founder profiles curated rank vs industry peers · Fliar Intelligence Index 60/100 | $78M | 15 mo ago | Acquired | 50 | WebflowSentryApple iCloud Mail+30 | Top 5M | — | 1 partnership |
| 13 | Aclima Provider of air pollution and greenhouse gas measurement solutions | $77M | 21 mo ago | Series B | — | HubSpot CMS HubHubSpotcore-js+13 | Top 10M | 80 patents Patents concentrated in computing, sensing & instrumentation | — |
| 14 | Sunverge Developer of smart energy storage and energy management systems | $75M | 36 mo ago | Series C | 33 | — | — | — | — |
| 15 | NCX Provider of solutions to offset the carbon footprint 69Moat top 21%Funding top 22%Patents top 24%Tech top 25% All 9 signals ▾Moattop 21% Fundingtop 22% Patentstop 24% Techtop 25% Innovationtop 29% Talenttop 38% Growthtop 45% Marketbottom 46% Globalbottom 42% Moat: Editorial + unicorn rating 8/10 · IP moat: 80 patents Funding: Raised $74.4M across 5 rounds · 5 rounds over 6 yrs (0.8/yr) rank vs industry peers · Fliar Intelligence Index 69/100 | $74M | 13 mo ago | Series B | 50 | WordPress Block EditorWordPressMySQL+43 | Top 5M | 80 patents Vacuum electron devices—field emission cathodes and multi-beam X‑ray source technologies. | — |
| 16 | Aclima Provider of connected sensor networks for environment awareness 53Moat top 21%Innovation top 22%Patents top 22%Funding top 30% All 10 signals ▾Moattop 21% Innovationtop 22% Patentstop 22% Fundingtop 30% Talenttop 39% Marketbottom 43% Globalbottom 43% Techbottom 38% Growthbottom 30% Newsbottom 18% Moat: Editorial + unicorn rating 8/10 · IP moat: 80 patents Innovation: 80 patents (top 23% of patent-holders) · 44 filings since 2022 vs 22 in 2017-21 rank vs industry peers · Fliar Intelligence Index 53/100 | $64M | 21 mo ago | Series B | 51 | — | — | 80 patents Patents concentrated in computing, sensing & instrumentation | — |
| 17 | Lithos Carbon Provider of carbon dioxide removal through enhanced rock weathering on farms | $63M | 30 mo ago | Series A | 1 | — | Top 10M | — | 1 partnership |
| 18 | Leap Provider of demand response management solutions | $58M | 30 mo ago | Series B | 49 | Framer SitesReactAmazon Web Services+13 | Top 10M | 29 patents Microwave-based mobile pavement recycling and on‑site asphalt production systems | — |
| 19 | Heirloom Provider of direct air capture technology for permanent carbon dioxide removal 40Funding top 26%Talent top 28%Moat top 39%Market bottom 45% All 8 signals ▾Fundingtop 26% Talenttop 28% Moattop 39% Marketbottom 45% Growthbottom 40% Globalbottom 39% Techbottom 37% Newsbottom 19% Funding: Raised $53.0M across 4 rounds · 4 rounds over 5 yrs (0.8/yr) Talent: 3 named leaders on record · 3 C-suite/founder profiles curated rank vs industry peers · Fliar Intelligence Index 40/100 | $53M | 6 mo ago | Series B | 54 | Webflow EcommerceWebflowLenis+10 | Top 5M | — | — |
| 20 | 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 | — | Craft CMSApple iCloud MailMicrosoft 365+10 | Top 10M | — | 1 launch · 1 award |
| 21 | 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% | WebflowTypekitGoogle Font API+12 | Top 5M | — | — |
| 22 | SINAI Online platform that provides decarbonization solutions for companies, enabling them to go beyond carbon… | $36M | 27 mo ago | Series A | 55 | Webflow EcommerceWebflowcore-js+19 | Top 10M | — | — |
| 23 | Vaulted Deep Provider of permanent carbon removal solutions using deep underground waste injection | $32M | 20 mo ago | Series A | — | WordPress Block EditorCart FunctionalityWordPress+20 | Top 10M | — | 3 job openings · 1 award |
| 24 | Verse Provider of SaaS-based renewable energy management platform | $26M | 25 mo ago | Series A | 2 | WordPressMarkerMySQL+37 | Top 10M | — | 1 partnership |
| 25 | Camus Energy Machine learning-based DERs management solution provider | $26M | 28 mo ago | Series A | 30 30 → 27 (-10%) · sector median +52% | WebflowApple iCloud MailGoogle Workspace+16 | Top 10M | — | — |
| 26 | Splight Provider of AI-based transmission capacity for the grid 35AI top 35%Funding top 37%Talent bottom 49%Global bottom 48% All 6 signals ▾AItop 35% Fundingtop 37% Talentbottom 49% Globalbottom 48% Techbottom 38% Marketbottom 30% AI: Product described with: ai-based, machine learning Funding: Raised $24.4M across 2 rounds · 2 rounds over 2 yrs (1.0/yr) rank vs industry peers · Fliar Intelligence Index 35/100 | $24M | 9 mo ago | Series A | — | Framer SitesReactLenis+5 | Top 50M | — | — |
| 27 | Sunflower Labs Provider of AI-driven home security solutions using smart lighting and drones 62Funding top 31%Innovation top 35%Growth top 35%Patents top 36% All 11 signals ▾Fundingtop 31% Innovationtop 35% Growthtop 35% Patentstop 36% Moattop 37% Talenttop 38% Techtop 43% Newstop 44% AItop 45% Globalbottom 39% Marketbottom 34% Funding: Raised $22.1M across 5 rounds · 5 rounds over 10 yrs (0.5/yr) Innovation: 18 patents (top 54% of patent-holders) · 5 filings since 2022 vs 3 in 2017-21 rank vs industry peers · Fliar Intelligence Index 62/100 | $22M | 7 mo ago | Series B | 30 | Node.jsNext.jsstyled-components+10 | Top 10M | 18 patents Autonomous multicopter drones for security surveillance, auto‑landing, and sensor‑network integration | — |
| 28 | Rubi Manufacturer of biobased textiles made from captured carbon emissions 32Funding top 28%Partners top 32%Moat top 35%Talent top 38% All 7 signals ▾Fundingtop 28% Partnerstop 32% Moattop 35% Talenttop 38% Newsbottom 48% Globalbottom 39% Marketbottom 31% Funding: Raised $18.6M across 6 rounds · 6 rounds over 4 yrs (1.5/yr) Partners: 2 partnership announcements in 12 mo (2 in 24 mo) rank vs industry peers · Fliar Intelligence Index 32/100 | $19M | 6 mo ago | Series A | 12 12 → 28 (+133%) · sector median +52% | — | — | — | — |
| 29 | Lumen Energy Provider of solutions to manage PPA 40Funding top 36%Talent top 38%Market bottom 43%Global bottom 36% All 4 signals ▾Fundingtop 36% Talenttop 38% Marketbottom 43% Globalbottom 36% Funding: Raised $16.5M · 3 rounds over 5 yrs (0.6/yr) Talent: 2 named leaders on record · 2 C-suite/founder profiles curated rank vs industry peers · Fliar Intelligence Index 40/100 | $17M | 4 mo ago | Series A | 38 | — | — | — | — |
| 30 | Tandem PV Developer of a perovskite-based solar cell | $14M | 13 mo ago | Series A | 21 | Wix eCommerceWixSentry+13 | Top 50M | 34 patents Advanced tandem photovoltaic cells with spectral filtering and parameter‑matching for optimized power output | 1 expansion |
| 31 | Splight Artificial Energy Developer of software to increase grid capacity and enhance reliability | $14M | 23 mo ago | Funding Raised | 36 | — | — | — | — |
| 32 | Glacier Provider of AI-based automated waste sorting robots | $12M | 13 mo ago | Series A | 12 | LiteSpeedMobXGoogle Font API+3 | Top 50M | — | — |
| 33 | Epic Cleantec Provider of wastewater infrastructure development services | $12M | 18 mo ago | Series B | 8 | WordPressMySQLPHP+24 | Top 10M | 22 patents Wastewater treatment with heat recovery, biosolids conversion, and water reuse technologies. | 1 job opening |
| 34 | Flair Systems Manufacturer of smart vents for home temperature control 50Tech top 26%Growth top 35%Funding top 37%Talent top 38% All 9 signals ▾Techtop 26% Growthtop 35% Fundingtop 37% Talenttop 38% Customerstop 39% Moattop 39% Producttop 46% Globalbottom 38% Marketbottom 25% Tech: 60 technologies across 6/8 capability areas · Cloud: Amazon Cloudfront, Amazon S3 Growth: Fresh capital in last 24 mo rank vs industry peers · Fliar Intelligence Index 50/100 | $8M | 2 mo ago | Series B | 13 | ShopifyBootstrapAmazon Web Services+44 | Top 5M | — | — |
| 35 | Blumen Systems Software for energy transition by aggregating geospatial datasets and regulatory documents | $6M | 23 mo ago | Seed | 5 | Apple iCloud MailGoogle WorkspaceRadix UI+10 | Top 50M | — | 1 partnership |
| 36 | TrueMeter Provider of AI utility bill management for multi-site businesses | $6M | 12 mo ago | Seed | — | WebflowRiveAmazon Web Services+23 | Top 10M | — | 1 award |
| 37 | SkyCool Systems Provider of radiative cooling systems | $5M | 12 mo ago | Seed | 11 | WordPressMySQLPHP+21 | Top 10M | — | 1 award |
| 38 | Cosmic Robotics Provider of robotics technology services for construction | $4M | 14 mo ago | Seed | — | WebflowGSAPLenis+10 | Top 50M | — | 1 partnership |
| 39 | HomeBoost Online platform providing home energy assessment solutions | $4M | 19 mo ago | Seed | — | WordPressMySQLPHP+31 | Top 10M | — | 1 job opening |
| 40 | Current Software Developer of billing software that automates processes and provides real-time analytics | $4M | 8 mo ago | Series A | — | Node.jsRadix UIReact+15 | Top 10M | — | — |
| 41 | Station A Provider of project developer recommendations using software tools and machine learning | $3M | 12 mo ago | Series B | 11 | — | — | 34 patents Identity access management workflow automation and automated spray dispensing systems | 1 job opening |
| 42 | Everest Carbon Provider of carbon removal solution | $3M | 18 mo ago | Seed | — | WebflowGSAPcore-js+12 | Top 50M | — | — |
| 43 | Aether Energy Provider of an AI-powered platform for solar and roofing installers | $3M | 19 mo ago | Seed | — | SentryNode.jsThree.js+16 | Top 50M | — | — |
| 44 | CNaught Provider of carbon offset API management platform | $2M | 13 mo ago | Seed | 4 | WebflowVimeoVercel+17 | Top 10M | — | 1 launch |
| 45 | Tyba Provider of solar power plant management platform | $2M | 16 mo ago | Series A | 9 | WordPressMySQLPHP+33 | Top 10M | — | — |
| 46 | Atmo Offering AI based weather forecasting solutions | $2M | 18 mo ago | Series A | 10 | WebflowGSAPAmazon Web Services+12 | Top 10M | — | — |
| 47 | C.Scale Developer of a platform for building decarbonization and carbon emission prediction | $2M | 7 mo ago | Seed | — | — | — | 30 patents AI-powered data annotation and dataset preparation for computer vision and document AI | 1 launch |
| 48 | InviscidAI Developer of physics-informed artificial intelligence platform for building system optimization | $500K | 5 mo ago | Seed | — | — | — | — | — |
| 49 | Verne Provider of rapid electricity deployment solutions for industrial power needs | $500K | 5 mo ago | Seed | — | — | — | 25 patents Cryo‑compressed hydrogen storage vessels with thermal management and composite overwrap systems | — |
| 50 | Cambio Provider of a real estate sustainability platform | $125K | 4 mo ago | Series A | 7 | WebflowAmazon Web ServicesCloudflare Turnstile+19 | Top 10M | — | — |
Top 12 Environment Tech companies in San Francisco
#1
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 — 10.5% 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
#2
Series C · San Francisco, California · founded 2014 · 220 employees$231Mraised▾
Series C · San Francisco, California · founded 2014 · 220 employees
Smart energy management technology platform that modernizes residential electrical systems. Its solutions replace traditional electrical panels with smart systems that provide homeowners with real-time visibility into household energy usage, circuit-level monitoring, and remote control of appliances and connected devices. It is designed to support modern electrified homes by integrating technologies such as home batteries, electric vehicle chargers, solar systems, HVAC systems, and heat pumps into a centralized energy management ecosystem.
Fliar Intelligence Index™ 82how this company ranks against its industry peers
Funding
top 13%Innovation
top 18%Patents
top 20%Growth
top 28%Moat
top 28%Product
top 35%Funding: Raised $231M across 10 rounds · 10 rounds over 8 yrs (1.2/yr) · Last round Series C (Jan 2026)
Innovation: 78 patents (top 21% of patent-holders) · 64 filings since 2022 vs 14 in 2017-21 · Deep-tech classification: Tech Hardware
Patents: 78 patents matched (strict assignee match) · 64 filings since 2022 vs 14 in 2017-21 · Latest publication 2026
Audience (LinkedIn): 35k LinkedIn followers — 5.5% of this cohort's audience
Hiring (LinkedIn): 1 hiring post in 12 mo (public)
Funding rounds
- Jan 2026Series C$163.3M
- Sep 2025Series B$25M
- Jun 2025Grant (prize money)$999.8K
- Apr 2025Grant (prize money)$999.8K
Founders & team
Investors
ArcTern Ventures, Capricorn, Incite, One Zero Capital, Wireframe Ventures, Ulu Ventures
Tech stack
AccessibeAhrefsApple Icloud MailAuraBootstrapCloudflare
#3
Series C · San Francisco, California · founded 2019 · 225 employees$170.5Mraised▾
Series C · San Francisco, California · founded 2019 · 225 employees
Provider of platform for enterprise sustainability programs, measurement, reporting, and action. The platform offers tools for carbon accounting, emissions reduction, and sustainability disclosure preparation. It facilitates target setting and progress tracking toward decarbonization. The platform supports audit-grade data and methodologies vetted by third-party auditors.
Fliar Intelligence Index™ 78how this company ranks against its industry peers
Funding
top 18%Growth
top 24%Moat
top 25%Product
top 28%Talent
top 28%Tech
top 34%Funding: Raised $170M across 4 rounds · 4 rounds over 5 yrs (0.8/yr) · Last round Series C (Dec 2025)
Growth: Headcount 11 → 225 (+1945%) across vintages · Fresh capital in last 24 mo
Moat: Editorial + unicorn rating 9/10 · IP moat: 31 patents · Unicorn
Audience (LinkedIn): 76k LinkedIn followers — 11.9% of this cohort's audience
Funding rounds
- Dec 2025Series C$14.5M
- Jun 2025Grant (prize money)$55K
- Feb 2024Series C$100.5M
- Feb 2022Series B$70M
Founders & team
Investors
Sequoia Capital, Kleiner Perkins, Lowercarbon Capital, Greenoaks, Emerson Collective, Galvanize Climate Solutions
Tech stack
6SenseCloudflareCloudflare Bot ManagementCore-JsGoogle AnalyticsGoogle Tag Manager
#4
Series A · San Francisco, California · founded 2019 · 25 employees$36Mraised▾
Series A · San Francisco, California · founded 2019 · 25 employees
Provider of biotechnology based carbon storage solutions. It uses biochemistry to enhance a tree natural ability to draw down atmospheric carbon.
Fliar Intelligence Index™ 53how this company ranks against its industry peers
Partners
top 18%Funding
top 23%Growth
top 25%News
top 28%Moat
top 39%Talent
bottom 49%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) · Last round Series A (Apr 2026)
Growth: Web rank 10,000,000 → 5,000,000 YoY · Fresh capital in last 24 mo
Audience (LinkedIn): 17k LinkedIn followers — 2.7% of this cohort's audience
Activity (LinkedIn): 1 awards announced in 12 mo
Funding rounds
- Apr 2026Series A$13M
- Jan 2023Series A$21M
- Feb 2022Grant (prize money)$500K
- Feb 2022Series A$15M
Founders & team
Investors
Temasek, Lowercarbon Capital, Toyota Ventures, Felicis Ventures, Day One Ventures, Goat Capital
Tech stack
CloudflareGoogle AnalyticsGoogle Font ApiGoogle Hosted LibrariesGoogle Tag ManagerGoogle Workspace
#5
Series E · San Francisco, California · founded 2015 · 326 employees$726.5Mraised▾
Series E · San Francisco, California · founded 2015 · 326 employees
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Fliar Intelligence Index™ 60how this company ranks against its industry peers
Funding
top 16%Moat
top 26%Product
top 30%Market
top 37%Talent
top 38%Global
top 48%Funding: Raised $726M across 11 rounds · 11 rounds over 11 yrs (1.0/yr) · Last round Conventional Debt (May 2025)
Moat: Editorial + unicorn rating 9/10 · Unicorn · 10 curated direct competitors tracked
Product: 2 published apps (1.2k installs) · Company stage: Series E
Audience (LinkedIn): 70k LinkedIn followers — 10.9% of this cohort's audience
Funding rounds
- May 2025Conventional Debt$650M
- Oct 2024Series E$100M
- Aug 2023Conventional Debt$125M
- Mar 2023Series E$250M
Founders & team
Investors
AB CarVal, CBRE, ENGIE New Ventures, Evergy Ventures, Linse Capital, CPP Investments
Tech stack
Amazon Web ServicesCdnjsCloudflareCloudflare Bot ManagementContentsquareCore-Js
#6
Series A · San Francisco, California · founded 2022$45.4Mraised▾
Series A · San Francisco, California · founded 2022
Developer of technology converting waste carbon into sustainable liquid fuels. The company’s technology economically converts waste carbon into liquid fuels. It enables industries to achieve net zero goals through carbon conversion efficiency. The technology converts carbon from multiple sources without requiring extra steps or equipment.
Fliar Intelligence Index™ 40how this company ranks against its industry peers
Funding
top 23%Growth
top 35%News
top 46%Moat
top 48%Talent
bottom 49%Global
bottom 39%Funding: Raised $45.4M across 3 rounds · 3 rounds over 3 yrs (1.0/yr) · Last round Series A (Jan 2026)
Growth: Web rank 50,000,000 → 10,000,000 YoY · Fresh capital in last 24 mo
News: 4 BI events in 12 mo (of 12 tracked, 4 types) · +0% YoY · Top themes: Contracts, Funding, Incorporation
Audience (LinkedIn): 8k LinkedIn followers
Activity (LinkedIn): 1 product launches · 1 awards announced in 12 mo
Funding rounds
- Jan 2026Series A$15M
- Mar 2025Series A—
- Jun 2024Series A$36.9M
- Dec 2023Seed$8.5M
Founders & team
Investors
JetBlue Technology Ventures, TechEnergy Ventures, Doral Energy Group, Foothill Ventures, Xora Innovation, AP Ventures
Tech stack
Apple Icloud MailBunnyCloudflareCraft CmsGodaddyHsts
#7
Series B · San Francisco, California · founded 2020 · 54 employees$53Mraised▾
Series B · San Francisco, California · founded 2020 · 54 employees
Provider of direct air capture technology for permanent carbon dioxide removal. The company accelerates natural carbon mineralization to capture carbon dioxide from the atmosphere. It integrates this mineralization approach into direct air capture facilities. The company’s facilities are powered by renewable energy and constructed with labor protections.
Fliar Intelligence Index™ 40how this company ranks against its industry peers
Funding
top 26%Talent
top 28%Moat
top 39%Market
bottom 45%Growth
bottom 40%Global
bottom 39%Funding: Raised $53.0M across 4 rounds · 4 rounds over 5 yrs (0.8/yr) · Last round Series B (Dec 2025)
Talent: 3 named leaders on record · 3 C-suite/founder profiles curated
Moat: Editorial + unicorn rating 6/10 · 9 curated direct competitors tracked
Audience (LinkedIn): 36k LinkedIn followers — 5.6% of this cohort's audience
Activity (LinkedIn): 2 partnerships (incl. Chyoda Corporation) announced in 12 mo
Funding rounds
- Dec 2025Series B—
- Feb 2025Series B—
- Dec 2024Series B$150M
- Mar 2022Series A$53M
Founders & team
Investors
Lowercarbon Capital, Energy Ventures, Prelude Ventures, Ahren, Breakthrough Energy, Microsoft
Tech stack
CloudflareCore-JsGodaddyGoogle WorkspaceHstsHttp/3
#8
Series B · San Francisco, California · founded 2014 · 13 employees$7.6Mraised▾
Series B · San Francisco, California · founded 2014 · 13 employees
Manufacturer of home automation devices for temperature control. Its device is equipped with Bluetooth, sensors. The vent works with existing internet-connected thermostats to adjust the temperature in individual rooms being used, using occupancy sensors and historical occupancy data. It can also be paired with existing connected cooling units to control temperature. Its systems can be controlled via smartphones, tablets, and smartwatches.
Fliar Intelligence Index™ 50how this company ranks against its industry peers
Tech
top 26%Growth
top 35%Funding
top 37%Talent
top 38%Customers
top 39%Moat
top 39%Tech: 60 technologies across 6/8 capability areas · Cloud: Amazon Cloudfront, Amazon S3 · Devops: Envoy
Growth: Fresh capital in last 24 mo
Funding: Raised $7.6M across 4 rounds · 4 rounds over 11 yrs (0.4/yr) · Last round Series B (Mar 2026)
Funding rounds
- Mar 2026Series B—
- Dec 2024Series A—
- Sep 2022Series A$7.6M
- Feb 2022Seed$108.5K
Founders & team
Investors
HAX, Active Impact Investments, Lowercarbon Capital, SOSV, Skyview Capital, Resilience Capital Partners
Tech stack
Amazon PayAmazon S3Amazon SesAmazon Web ServicesAmerican ExpressApple Pay
#9
Series A · San Francisco, California · founded 2019 · 38 employees$16.5Mraised▾
Series A · San Francisco, California · founded 2019 · 38 employees
Provider of solutions to manage PPA. It provides personalized power purchase agreements (PPAs) across your entire portfolio.
Fliar Intelligence Index™ 40how this company ranks against its industry peers
Funding
top 36%Talent
top 38%Market
bottom 43%Global
bottom 36%Funding: Raised $16.5M · 3 rounds over 5 yrs (0.6/yr) · Last round Series A (Feb 2026)
Talent: 2 named leaders on record · 2 C-suite/founder profiles curated
Market: 38 employees
Audience (LinkedIn): 4k LinkedIn followers
Founders & team
Investors
Ajax Strategies, Lowercarbon Capital, Designer Fund, Bridge Investment Group, Nuveen, Climate Capital
#10
Series A · San Francisco, California · founded 2020 · 12 employees$18.6Mraised▾
Series A · San Francisco, California · founded 2020 · 12 employees
Manufacturer of biobased textiles made from captured carbon emissions. The company’s process removes carbon dioxide from the atmosphere. It creates textiles using virtually zero water and land. The textiles are the same material already used in apparel. The material biodegrades at the end of its life. The technology uses enzymes to convert carbon dioxide to cellulose.
Fliar Intelligence Index™ 32how this company ranks against its industry peers
Funding
top 28%Partners
top 32%Moat
top 35%Talent
top 38%News
bottom 48%Global
bottom 39%Funding: Raised $18.6M across 6 rounds · 6 rounds over 4 yrs (1.5/yr) · Last round Series A (Nov 2025)
Partners: 2 partnership announcements in 12 mo (2 in 24 mo)
Moat: Editorial + unicorn rating 7/10 · 3 curated direct competitors tracked
Audience (LinkedIn): 11k LinkedIn followers
Activity (LinkedIn): 1 awards announced in 12 mo
Funding rounds
- Nov 2025Series A$7.5M
- Dec 2024Grant (prize money)$970K
- Nov 2023Seed$5.1M
- Mar 2023Seed$8.7M
Founders & team
Investors
Talis Capital, Tin Shed Ventures, Necessary Ventures, H&M Group Ventures, Collab Fund, America’s Seed Fund
#11
Series B · San Francisco, California · founded 2016 · 30 employees$22.1Mraised▾
Series B · San Francisco, California · founded 2016 · 30 employees
Provider of AI-driven home security solutions using smart lighting and drones. The smart lights are integrated into a stick form factor that also contains motion sensors to detect intruders. The stick can be stuck on the grounds of a house and when a trespasser is detected. When unusual activity is detected, the companion drone can be sent to collect video. The drone is a quadcopter that flies autonomously and records video using a combined IR and optical camera.
Fliar Intelligence Index™ 62how this company ranks against its industry peers
Funding
top 31%Innovation
top 35%Growth
top 35%Patents
top 36%Moat
top 37%Talent
top 38%Funding: Raised $22.1M across 5 rounds · 5 rounds over 10 yrs (0.5/yr) · Last round Series B (Nov 2025)
Innovation: 18 patents (top 54% of patent-holders) · 5 filings since 2022 vs 3 in 2017-21 · Deep-tech classification: Tech Hardware
Growth: Fresh capital in last 24 mo
Audience (LinkedIn): 6k LinkedIn followers
Funding rounds
- Nov 2025Series B$16M
- Dec 2023Series A$1.5M
- Jan 2022Series A$15M
- 2019Seed—
Founders & team
Investors
General Catalyst, Stanley Ventures, Gentian Investments, Drone Fund, All Turtles, Pbfs.com
Tech stack
Framer SitesGoogle MapsGoogle Tag ManagerGoogle WorkspaceHstsHttp/3
#12
Public · San Francisco, California · founded 2014 · 92 employees$97.9Mraised▾
Public · San Francisco, California · founded 2014 · 92 employees
Manufacturer of air purification and humidification devices with filtration technology. The company offers air purifiers utilizing PECO technology alongside HEPA filtration. These devices aim to remove pollutants, allergens, and other particles from indoor air. The company also provides humidifiers designed to maintain comfortable humidity levels. Replacement filters for the air purification devices are available for purchase.
Fliar Intelligence Index™ 50how this company ranks against its industry peers
Funding
top 28%Innovation
top 29%Patents
top 29%Product
top 34%Moat
top 38%Tech
top 41%Funding: Raised $97.9M across 6 rounds · 6 rounds over 10 yrs (0.6/yr) · Last round Post IPO (May 2025)
Innovation: 77 patents (top 23% of patent-holders) · 39 filings since 2022 vs 38 in 2017-21 · 11 product lines
Patents: 77 patents matched (strict assignee match) · 39 filings since 2022 vs 38 in 2017-21 · Latest publication 2026
Audience (LinkedIn): 11k LinkedIn followers
Funding rounds
- May 2025Post IPO$6.6M
- May 2023Post IPO$10M
- Sep 2021Angel—
- Aug 2020Angel—
Founders & team
Investors
Founders Circle Capital, Inventec, Crosslink Capital, Uncork Capital, TransLink Capital, Foundry
Tech stack
Animate.CssApple Icloud MailApple PayBootstrapCart FunctionalityCloudflare
Funding & investor landscape
$5.3Btotal disclosed funding
131companies funded
346disclosed rounds
2rounds last 90 days
Most active investors
Y Combinator17 rounds
Notable founders
Jack Norbeck
Co-Founder and CTO · Fervo Energy
Tim Latimer
Co-Founder · Fervo Energy
Jireh Seow
Co-Founder · SPAN
Arch Rao
Founder & CEO · SPAN
Christian Anderson
Co-Founder · Watershed
Taylor Francis
Co-Founder · Watershed
Maddie Hall
Co-Founder & CEO · Living Carbon
Arvin Vohra
Co-Founder & CEO · Redaptive
Manesh Shah
Chief Administrative & Legal Officer · Redaptive
Conor Madigan
Founder and CEO · Aether Fuels
Noah Mcqueen
Co-Founder · Heirloom
Shashank Samala
Co-Founder & CEO · Heirloom
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 papers surged 2→31, signaling rapidly rising computational breakthroughs 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 advancement papers tripled 14→60, intensifying as the dominant methodological focus 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 debut of 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 San Francisco, United States?
Radar tracks 240 indexable Environment Tech companies headquartered in San Francisco, United States that meet our profile-completeness bar.
What is the total funding raised by Environment Tech companies in San Francisco, United States?
The Environment Tech companies in San Francisco, United States on this list have raised a combined $5.3B in disclosed equity funding across 131 funded companies.
Which is the highest-funded Environment Tech company in San Francisco, United States?
Redaptive is the highest-funded Environment Tech company in San Francisco, United States, with $726.5M in disclosed equity funding.
How many Environment Tech companies in San Francisco, United States are funded?
131 of the 240 Environment Tech companies in San Francisco, United States on this list have disclosed at least one equity funding round.
How many Environment Tech unicorns are there in San Francisco, United States?
4 Environment Tech companies in San Francisco, United States on this list are valued at $1B or more.
Who are the top investors in San Francisco, United States Environment Tech companies?
The most active investors in San Francisco, United States Environment Tech companies on this list include Climate Capital, Y Combinator, Collab Fund, Elemental, OSTI.
Rohit KhannaTrends & Stories
Rohit lives in the feed. He covers what's moving right now — the funding rounds, launches and shifts breaking across the trade press — and ties them back to where the sector is heading.