Radar · Renewable Energy Tech in United States
Best Renewable Energy Tech Companies in United States
The 841 best Renewable Energy Tech companies in United States in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: Nexamp.
By Riya SenguptaFinancials
841companies tracked
$20.4Bdisclosed funding
6unicorns
379have raised
Ranking the best Renewable Energy Tech companies in the United States by disclosed equity funding, this directory tracks 841 ventures that have collectively pulled in $20.4 billion. That's a real number. The sector median revenue sits at $81 million, but the outsized earners show you what scale actually looks like: First Solar hit $1.0 billion in revenue, 13x the median, and Enphase Energy logged $283 million, roughly 4x. Nexamp leads our funding table at $1.3 billion raised, with Form Energy close behind at $1.1 billion and Clean Capital at $504 million. Six unicorns have emerged from this cohort, backed by institutions ranging from the DOE to Climate Capital.
The momentum underneath those figures is real too. As shown in 2022 research on renewable electricity adoption, deployment trends compound faster than headline funding rounds suggest, and our app-layer data confirms it: median install growth across 195 energy-related apps is running at roughly 28% year-over-year. Hot themes right now are solar electricity generation, solar PV, and renewable technologies broadly. Coverage volume is flat, which I'd argue makes the revenue concentration more telling, not less. So if you're trying to locate where earned revenue actually lives in this sector, the funding table here is where to start.
Ranked: Best Renewable Energy Tech companies in United States
| # | Company | Disclosed funding | Last round | Employees | Founder | Tech stack | Market signals (1y) | Patents & IP focus | Recent signals |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 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 | 331 331 → 589 (+78%) · sector median +89% | Zaid Ashai CEO | SentryApple iCloud MailMUI+21 | 3 signals ▼75% Funding | — | 1 award |
| 2 | 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 | 372 372 → 850 (+128%) · sector median +89% | Ted Wiley Co-Founder + President & COO | WordPressApple iCloud MailGoogle Workspace+28 | 5 signals ▼17% Contracts · Acquisition · Hiring | 358 patents Low-cost metal‑air batteries and iron‑based electrochemical production systems | 1 job opening |
| 3 | Palmetto 🦄 Residential solar energy systems and battery storage solutions | $670M | 17 mo ago | 419 419 → 723 (+73%) · sector median +89% | Christopher Kemper Co-Founder & CEO | PlasmicPrismicApple iCloud Mail+34 | 3 signals ▼40% Leadership · Announcements | — | 3 partnerships |
| 4 | 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 | 114 | Matt Svrcek Co-Founder & CTO | Craft CMSBugHerdApple iCloud Mail+20 | — | 166 patents Patents concentrated in mechanical & energy engineering | — |
| 5 | 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 | 30 | Jon Powers Co Founder | WordPressApple iCloud MailMicrosoft 365+32 | 3 signals Capital raise · Acquisition | — | — |
| 6 | 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 | 49 | Jack Norbeck Co-Founder and CTO | WordPressApple iCloud MailMicrosoft 365+25 | 9 signals ▼31% Funding · IPO · Capital raise | — | 1 launch · 3 partnerships |
| 7 | 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 | 16 | Paul Warley CEO | HubSpot CMS HubEnvoyHubSpot+8 | 6 signals ▲200% Funding · Incorporation | 96 patents Thin‑film solar cell manufacturing, flexible substrates, and monolithic integration for airborne power. | — |
| 8 | SOURCE Manufacturer of solar powered systems that extract water from air | $239M | 15 mo ago | 109 | Shikha Kapur Co-Founder | ShopifyTailwind CSSShopPad Infinite Options+25 | — | 24 patents Media handling and sensor-driven print optimization hardware for industrial printing systems | — |
| 9 | Ambri Manufacturer of liquid metal battery systems for grid energy storage | $219M | 22 mo ago | 141 | David Bradwell Chief Executive Officer | WordPressMySQLPHP+28 | — | 114 patents Liquid metal battery technology for grid-scale high-temperature energy storage | — |
| 10 | Saildrone Developer of autonomous unmanned surface vehicle 55Funding top 23%Moat top 31%Growth top 35%Tech top 42% All 10 signals ▾Fundingtop 23% Moattop 31% Growthtop 35% Techtop 42% Markettop 47% Talentbottom 49% Patentsbottom 45% Globalbottom 43% Innovationbottom 37% Newsbottom 22% Funding: Raised $190M across 4 rounds · 4 rounds over 10 yrs (0.4/yr) Moat: Editorial + unicorn rating 8/10 · IP moat: 18 patents rank vs industry peers · Fliar Intelligence Index 55/100 | $190M | 13 mo ago | 250 | Richard Jenkins Founder & CEO | WebflowSalesforceGSAP+17 | — | 18 patents Autonomous unmanned surface vehicles with flexible sensor mounts and square-wing sail propulsion. | 2 job openings · 1 launch |
| 11 | Caban Cloud based energy storage solutions 48Funding top 24%Moat top 36%Tech top 37%Talent bottom 49% All 7 signals ▾Fundingtop 24% Moattop 36% Techtop 37% Talentbottom 49% Growthbottom 48% Marketbottom 45% Globalbottom 32% Funding: Raised $176M across 4 rounds · 4 rounds over 7 yrs (0.6/yr) Moat: Editorial + unicorn rating 6/10 · Soonicorn rank vs industry peers · Fliar Intelligence Index 48/100 | $176M | 15 mo ago | 54 | Alexandra Castillo Founder and CEO | WebflowVimeoHubSpot+15 | — | — | — |
| 12 | Dispatch Energy Provider of distributed energy solutions including solar, battery storage, and fuel cells | $160M | 12 mo ago | — | Richard Dovere Chief Executive Officer | — | — | — | — |
| 13 | 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 | 80 80 → 69 (-14%) · sector median +89% | Prashant Gupta Co-Founder | WordPressApple iCloud MailGoogle Workspace+27 | — | 173 patents Real-time behind‑meter power routing and load management for EV charging and flexible datacenters | — |
| 14 | LevelTen Energy Online renewable energy PPA marketplace | $137M | 23 mo ago | 146 | Bryce Smith Founder & CEO | Webflow EcommerceWebflowAsana+24 | — | — | 1 job opening |
| 15 | CubicPV Manufacturer of solar PV modules | $137M | 13 mo ago | 71 | — | WordPressApple iCloud MailMicrosoft 365+11 | — | 184 patents Perovskite solar cell materials, coatings, and scalable thin‑film manufacturing. | — |
| 16 | SkySpecs Provider of UAVs solutions for inspection 67Funding top 20%Talent top 28%Growth top 35%Product top 35% All 11 signals ▾Fundingtop 20% Talenttop 28% Growthtop 35% Producttop 35% Moattop 35% Globaltop 40% Markettop 42% Techtop 44% Innovationbottom 42% Patentsbottom 26% Newsbottom 24% Funding: Raised $122M across 15 rounds · 15 rounds over 14 yrs (1.1/yr) Talent: Analyst team rating 4/5 rank vs industry peers · Fliar Intelligence Index 67/100 | $122M | 15 mo ago | 289 | — | WordPressApple iCloud MailGoogle Workspace+32 | — | 2 patents Vehicle collision avoidance systems for autonomous road vehicles | — |
| 17 | BEEWISE Saving bees with AI and robotics to protect the global food supply 48Funding top 20%Moat top 28%Growth top 35%AI top 35% All 10 signals ▾Fundingtop 20% Moattop 28% Growthtop 35% AItop 35% Producttop 36% Talentbottom 49% Techbottom 44% Globalbottom 39% Marketbottom 23% Newsbottom 17% Funding: Raised $120M across 8 rounds · 8 rounds over 7 yrs (1.1/yr) Moat: Editorial + unicorn rating 8/10 · Soonicorn rank vs industry peers · Fliar Intelligence Index 48/100 | $120M | 12 mo ago | 6 | Saar Safra Co-Founder & CEO | HubSpot CMS HubSalesforceAmazon Web Services+17 | — | — | — |
| 18 | Zeitview Provider of drone-based inspection software platform 76Funding top 18%Tech top 27%AI top 30%Moat top 31% All 9 signals ▾Fundingtop 18% Techtop 27% AItop 30% Moattop 31% Markettop 42% Growthtop 45% Talentbottom 49% Globalbottom 39% Newsbottom 32% Funding: Raised $114M across 8 rounds · 8 rounds over 11 yrs (0.7/yr) Tech: 44 technologies across 5/8 capability areas · Cloud: Cloudflare rank vs industry peers · Fliar Intelligence Index 76/100 | $114M | 15 mo ago | 194 | Daniel Burton Co-Founder & CEO | Cart FunctionalitySquarespace CommerceSquarespace+31 | — | — | — |
| 19 | 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 | 43 43 → 97 (+126%) · sector median +89% | Kevin Clifford Co-Founder | — | — | — | 1 partnership |
| 20 | Aptera Motors Developer of solar electric vehicles designed for efficient energy use | $83M | 18 mo ago | 91 | Jim Chyou Asia Pacific Ceo | WordPress Site EditorWordPressApple iCloud Mail+39 | 11 signals ▲120% Earnings · Funding · IPO | 86 patents Solar-integrated vehicle structures, UI displays, and laminated solar panel manufacturing for EVs | — |
| 21 | Omnidian Provider of monitoring and maintenance solutions for solar PV systems | $81M | 13 mo ago | 192 | David Kenny Co-Founder & Chief Operating Officer | WordPress Block EditorwpBakeryWordPress+41 | 3 signals ▼40% Acquisition | — | — |
| 22 | Terabase Developer of a web-based solar power plant optimization platform 57Funding top 22%Talent top 28%Moat top 39%Market top 46% All 9 signals ▾Fundingtop 22% Talenttop 28% Moattop 39% Markettop 46% Producttop 46% Techtop 47% Growthbottom 47% Globalbottom 38% Newsbottom 21% Funding: Raised $77.0M across 5 rounds · 5 rounds over 7 yrs (0.7/yr) Talent: 3 named leaders on record · 3 C-suite/founder profiles curated rank vs industry peers · Fliar Intelligence Index 57/100 | $77M | 15 mo ago | 104 | Pierre Gousseland SVP of Product | WordPressApple iCloud MailMicrosoft 365+26 | — | — | 1 launch · 1 award |
| 23 | Infinium Developer of technology transforming waste emissions into sustainable products | $69M | 17 mo ago | 58 | — | Cart FunctionalitySquarespace CommerceSquarespace+23 | — | 254 patents Patents concentrated in chemistry & materials | 2 partnerships · 1 award |
| 24 | 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 | 1 | Nate Walkingshaw Co-Founder & CEO | DatoCMSApple iCloud MailGoogle Workspace+30 | — | 56 patents Flywheel-based mechanical energy storage with magnetic bearings and AI management | 1 partnership · 2 awards |
| 25 | 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 | 9 | Cindy Taff Chief Executive Officer | WebflowGSAPSwiper+9 | — | 72 patents Geothermal and geopressure energy extraction, cycling, and subsurface storage technologies | 1 internship · 1 partnership |
| 26 | 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 | — | Conor Madigan Founder and CEO | Craft CMSApple iCloud MailMicrosoft 365+10 | 4 signals Incorporation · Funding · Contracts | — | 1 launch · 1 award |
| 27 | Swift Solar Provider of flexible perovskite solar cells 69Growth top 17%Innovation top 20%Patents top 23%Talent top 25% All 10 signals ▾Growthtop 17% Innovationtop 20% Patentstop 23% Talenttop 25% Fundingtop 29% Newstop 30% Moattop 32% Techbottom 42% Globalbottom 40% Marketbottom 30% Growth: 5 acquisition/expansion moves in 24 mo · Fresh capital in last 24 mo Innovation: 63 patents (top 27% of patent-holders) · 50 filings since 2022 vs 13 in 2017-21 rank vs industry peers · Fliar Intelligence Index 69/100 | $42M | 13 mo ago | 19 | Tomas Leijtens Cto | WebflowApple iCloud MailGoogle Workspace+11 | 8 signals Acquisition · Announcements | 63 patents Integrating robust interconnects and moisture barriers for perovskite‑silicon tandem solar modules | 1 job opening |
| 28 | Reflect Orbital Space-based solar power generation solutions | $35M | 13 mo ago | 4 | Tristan Semmelhack Co-Founder | WebflowApple iCloud MailGoogle Workspace+16 | — | — | 1 job opening |
| 29 | 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 | — | Bruce F Founder & CEO | HubSpot CMS Hubcore-jsPreact+15 | — | 13 patents High‑pressure lipid extraction, infusion and bonding equipment for oil processing | — |
| 30 | mPower Technologies Manufacturer of solar modules for space applications and related solutions 48Funding top 30%Tech top 33%Growth top 35%Talent top 38% All 8 signals ▾Fundingtop 30% Techtop 33% Growthtop 35% Talenttop 38% Moattop 39% Globalbottom 37% Newsbottom 31% Marketbottom 23% Funding: Raised $31.4M across 6 rounds · 6 rounds over 6 yrs (1.0/yr) Tech: 35 technologies across 5/8 capability areas · Cloud: Amazon Cloudfront, Amazon S3 rank vs industry peers · Fliar Intelligence Index 48/100 | $31M | 14 mo ago | 10 10 → 24 (+140%) · sector median +89% | Murat Okandan Co-Founder | TurbopackNode.jsTailwind CSS+18 | — | — | 1 award |
| 31 | Merlin Solar Manufacturers of solar modules 55Product top 26%Funding top 27%Tech top 27%Growth top 35% All 10 signals ▾Producttop 26% Fundingtop 27% Techtop 27% Growthtop 35% Patentstop 43% Moattop 43% Innovationtop 50% Talentbottom 49% Globalbottom 40% Marketbottom 38% Product: 11 distinct product lines · Company stage: Acquired Funding: Raised $31.0M across 2 rounds · 2 rounds over 2 yrs (1.0/yr) rank vs industry peers · Fliar Intelligence Index 55/100 | $31M | 5 mo ago | 62 | Venkatesan Murali Founder | Wix eCommerceWixSentry+13 | — | 79 patents Metallic interconnects and surface treatments for photovoltaic module manufacturing | — |
| 32 | Solestial Manufacturer of silicon photovoltaic products designed for space-based solar power | $26M | 13 mo ago | 26 | Stan Herasimenka Co-Founder & CTO | WordPress Block EditorWordPressApple iCloud Mail+29 | — | — | 1 job opening |
| 33 | Cowboy Clean Fuels Provider of renewable natural gas | $26M | 10 mo ago | 15 | Ryan Waddington Co-Founder | WordPressMySQLPHP+23 | — | — | 1 launch |
| 34 | OpenSolar Cloud-based solar design and sales platform | $25M | 8 mo ago | 73 | Andrew Birch Co-Founder & CEO | WordPress Block EditorWordPressApple iCloud Mail+33 | — | — | 2 launchs · 1 expansion |
| 35 | SYSO Technologies Provider of renewable energy storage and management solutions 35Funding top 36%Talent top 38%Moat top 39%Market bottom 40% All 5 signals ▾Fundingtop 36% Talenttop 38% Moattop 39% Marketbottom 40% Globalbottom 29% Funding: Raised $24.5M across 5 rounds · 5 rounds over 5 yrs (1.0/yr) Talent: 2 named leaders on record · 2 C-suite/founder profiles curated rank vs industry peers · Fliar Intelligence Index 35/100 | $24M | 5 mo ago | 22 22 → 44 (+100%) · sector median +89% | Christopher Gosline Co-Founder & CEO | — | — | — | — |
| 36 | First Solar Provider of cadmium telluride-based flexible solar modules | $22M | 13 mo ago | 6,700 6,700 → 6,680 (+0%) · sector median +89% | Mike Ahearn Founder | SitecoreApple iCloud MailMicrosoft 365+19 | 43 signals ▲23% Earnings · Announcements · Contracts | 1,474 patents Patents concentrated in electrical & electronics | — |
| 37 | Euclid Power Provider of project management tool for solar energy | $20M | 9 mo ago | — | Jacob Sandry Co-Founder & CEO | — | — | — | — |
| 38 | UbiQD Developer of low-cost quantum dots for industrial applications 45Funding top 26%Patents top 29%Innovation top 32%Moat top 32% All 10 signals ▾Fundingtop 26% Patentstop 29% Innovationtop 32% Moattop 32% Newstop 39% Talentbottom 49% Techbottom 48% Globalbottom 40% Partnersbottom 35% Marketbottom 31% Funding: Raised $18.4M across 15 rounds · 15 rounds over 10 yrs (1.5/yr) Patents: 65 patents matched (strict assignee match) · 31 filings since 2022 vs 33 in 2017-21 rank vs industry peers · Fliar Intelligence Index 45/100 | $18M | 4 mo ago | 27 | Hunter McDaniel Founder & CEO | WebflowreCAPTCHAHSTS+10 | 3 signals ▲200% Funding · Contracts | 65 patents Patents concentrated in chemistry & materials | 1 launch · 3 expansions |
| 39 | Lydian Labs Developer of technology to recycle CO2 emissions into carbon-neutral fuels | $18M | 5 mo ago | — | Joe Rodden Co-Founder & CEO | — | — | 25 patents Modular electrically heated reactors for endothermic chemical synthesis and catalytic processes. | — |
| 40 | Dioxide Materials Technology to convert carbon dioxide into fuels generated from buildings HVAC systems. | $18M | 13 mo ago | 16 | Rich Masel Founder and CEO | — | — | 140 patents CO₂ capture and electrochemical conversion to fuels via novel catalysts and electrolyzers | — |
| 41 | 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 | 3 mo ago | 38 | Dave Coen Co-Founder | — | — | — | — |
| 42 | 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 | 12 | Bob Cousins Co-Founder | — | — | 42 patents Solar-powered antenna arrays and low‑power semi‑reflective display technologies | 3 launchs · 2 partnerships |
| 43 | Enact Provider of software solutions for monitoring solar energy usage and production | $15M | 11 mo ago | 47 | Manasij Kar Co-Founder & Head of Product | WordPressMySQLPHP+30 | — | — | — |
| 44 | 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 | — | Andrew Rush Co-founder and CEO | WordPressMySQLPHP+16 | — | — | 6 job openings |
| 45 | Daylight Made with love Provider of energy monitoring and energy efficient products | $9M | 7 mo ago | — | Udit Patel Co-Founder / CTO | Node.jsTailwind CSSReact+16 | — | — | — |
| 46 | MicroBio Engineering Developer of microalgae technology and wastewater treatment plants 32Innovation top 20%Funding top 44%Product top 46%Talent bottom 45% All 7 signals ▾Innovationtop 20% Fundingtop 44% Producttop 46% Talentbottom 45% Techbottom 31% Globalbottom 29% Marketbottom 15% Innovation: 6 product lines Funding: Raised $8.7M across 9 rounds · 9 rounds over 10 yrs (0.9/yr) rank vs industry peers · Fliar Intelligence Index 32/100 | $9M | 5 mo ago | 8 | John Benemann CEO | Squarespace CommerceSquarespaceStimulus+11 | — | — | — |
| 47 | Triton Anchor Developer of anchoring solutions for floating offshore wind and marine energy | $8M | 9 mo ago | 6 | Ross Haghighat CEO | — | — | — | — |
| 48 | Cvector Provider of real-time data platform for energy and industrial applications | $6M | 6 mo ago | — | Tyler Ruggles Founder & CTO | — | — | — | — |
| 49 | Bert Thin Films Manufacturer of copper paste for solar panels | $3M | 6 mo ago | — | Thad Druffel Founder | — | — | — | — |
| 50 | Vor Systems AI-enabled transaction platform for energy asset transactions | $3M | 3 mo ago | — | Victor Shao Co-Founder & CEO | — | — | — | — |
Top 12 Renewable Energy 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 — 3.7% of this cohort's audience
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
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 — 6.0% 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
#3
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
#4
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
#5
Series D · Lehi, Utah · founded 2021 · 1 employees$67Mraised▾
Series D · Lehi, Utah · founded 2021 · 1 employees
Manufacturer of power generator from the sun or other renewable energy sources.They have developed an app for monitoring power generation and storage in real time, and easily load shift to maximise energy efficiency.
Fliar Intelligence Index™ 40how this company ranks against its industry peers
Patents
top 24%Funding
top 29%Innovation
top 30%Tech
top 30%Growth
top 35%Product
top 36%Patents: 56 patents matched (strict assignee match) · 54 filings since 2022 vs 0 in 2017-21 · Latest publication 2026
Funding: Raised $67.0M across 3 rounds · 3 rounds over 2 yrs (1.5/yr) · Last round Conventional Debt (May 2026)
Innovation: 56 patents (top 36% of patent-holders) · 54 filings since 2022 vs 0 in 2017-21 · Deep-tech classification: Tech Hardware
Audience (LinkedIn): 9k LinkedIn followers
Activity (LinkedIn): 1 partnerships · 2 awards (incl. Torus) announced in 12 mo
Funding rounds
- May 2026Conventional Debt$35M
- Sep 2025Series D$200M
- Apr 2024Series C$67M
Founders & team
Investors
Origin Ventures, EPIC Ventures, The Larry H. Miller Company, Zions Bank, Pelion, Iconiq Capital
Tech stack
Apple Icloud MailAxeptioCloudflareCloudflare Bot ManagementCore-JsCrazy Egg
#6
Series F · Somerville, Massachusetts · founded 2009 · 372 employees$1.1Braised▾
Series F · Somerville, Massachusetts · founded 2009 · 372 employees
Clean energy technology platform developing long-duration iron-air battery systems. It develops advanced battery solutions capable of storing electricity for multiple days, helping balance energy supply and demand during periods of high stress or renewable energy intermittency. It is designed to support the transition to a cleaner and more resilient electric grid by enabling greater integration of renewable energy sources such as wind and solar. Its technology centers on cost-effective, scalable battery systems built for long-duration storage applications, addressing critical gaps in traditional short-duration energy storage solutions.
Fliar Intelligence Index™ 83how this company ranks against its industry peers
Patents
top 11%Funding
top 15%Innovation
top 16%Moat
top 26%Product
top 28%Growth
top 31%Patents: 358 patents matched (strict assignee match) · 302 filings since 2022 vs 54 in 2017-21 · Latest publication 2026
Funding: Raised $1.1B across 9 rounds · 9 rounds over 8 yrs (1.1/yr) · Last round Series F (Jan 2025)
Innovation: 358 patents (top 7% of patent-holders) · 302 filings since 2022 vs 54 in 2017-21 · 2 product lines
Audience (LinkedIn): 81k LinkedIn followers — 7.2% of this cohort's audience · 138 engagements/post (3.1× cohort median)
Hiring (LinkedIn): 1 hiring post in 12 mo (public) · hiring: engineers
Funding rounds
- Jan 2026Series F—
- Oct 2024Series F$405M
- Aug 2023Grant (prize money)$12M
- Sep 2022Series E$450M
Founders & team
Investors
ARPA-E, Coatue, Energy Impact Partners, Temasek, NGP Energy Technology Partners, Prelude Ventures
Tech stack
AccessibeApple Icloud MailCloudflareCloudflare Bot ManagementCookieyesCore-Js
#7
Series B · Bellaire, Texas · founded 2020 · 9 employees$56.8Mraised▾
Series B · Bellaire, Texas · founded 2020 · 9 employees
Developer of geo-thermal energy projects
Fliar Intelligence Index™ 48how this company ranks against its industry peers
Innovation
top 17%Patents
top 25%Funding
top 33%Growth
top 35%Moat
top 45%News
top 46%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 · Latest publication 2026
Funding: Raised $56.8M across 3 rounds · 3 rounds over 5 yrs (0.6/yr) · Last round Series B (Jan 2026)
Audience (LinkedIn): 16k LinkedIn followers
Activity (LinkedIn): 1 partnerships (incl. Sage Geosystems) announced in 12 mo
Funding rounds
- Jan 2026Series B$97M
- Dec 2023Series A$44.8M
- Jun 2021Series A$12M
Founders & team
Investors
Nabors, Virya, Chessapeake, Helium-3 Ventures, Ignis Energy, Ormat
Tech stack
CloudflareGsapHstsHttp/3JqueryJsdelivr
#8
Series D · The Woodlands, Texas · founded 2014 · 80 employees$150Mraised▾
Series D · The Woodlands, Texas · founded 2014 · 80 employees
Developer of infrastructure for artificial intelligence data centers and power orchestration. The company designs sites and builds electrical infrastructure to deliver reliable power access. It integrates renewable energy sources directly into data center campuses. The company orchestrates power resources to optimize energy cost, carbon usage, and grid reliability.
Fliar Intelligence Index™ 72how this company ranks against its industry peers
Funding
top 19%Patents
top 24%Moat
top 26%Innovation
top 28%Talent
top 38%Tech
top 39%Funding: Raised $150M across 3 rounds · 3 rounds over 8 yrs (0.4/yr) · Last round Conventional Debt (Oct 2025)
Patents: 173 patents matched (strict assignee match) · 88 filings since 2022 vs 85 in 2017-21 · Latest publication 2025
Moat: Editorial + unicorn rating 8/10 · IP moat: 173 patents · Soonicorn
Audience (LinkedIn): 10k LinkedIn followers
Funding rounds
- Oct 2025Conventional Debt$600M
- Nov 2024PE$500M
- Nov 2021Series D$150M
- Jul 2018Conventional Debt—
Founders & team
Investors
Hanwhasolutions, SBI Group, Blackstone
Tech stack
Amazon Web ServicesApple Icloud MailCloudflareCloudflare Bot ManagementCore-JsElementor
#9
Series F · Menlo Park, California · founded 2010 · 114 employees$518Mraised▾
Series F · Menlo Park, California · founded 2010 · 114 employees
Developer of onsite linear power generators. It offers onsite linear power generators that can run on multiple fuels for commercial, industrial, microgrid, and utility customers.
Fliar Intelligence Index™ 82how this company ranks against its industry peers
Patents
top 16%Funding
top 18%Innovation
top 21%Moat
top 24%Talent
top 28%Growth
top 32%Patents: 166 patents matched (strict assignee match) · 113 filings since 2022 vs 52 in 2017-21 · Latest publication 2026
Funding: Raised $518M across 5 rounds · 5 rounds over 9 yrs (0.6/yr) · Last round Series F (Apr 2025)
Innovation: 166 patents (top 13% of patent-holders) · 113 filings since 2022 vs 52 in 2017-21 · Deep-tech classification: Tech Hardware
Audience (LinkedIn): 78k LinkedIn followers — 6.9% of this cohort's audience
Funding rounds
- Apr 2025Series F$258M
- Sep 2022Series E$140M
- May 2022Series E$150M
- Dec 2020Series D$108.1M
Founders & team
Investors
Chevron, Princeville Capital, Standard Industries, Khosla Ventures, American Electric Power, ClearSky Data
Tech stack
Apple Icloud MailBugherdBunnyCloudflareCloudflare Bot ManagementCraft Cms
#10
Series A · San Diego, California · founded 2021$31.8Mraised▾
Series A · San Diego, California · founded 2021
Provider of AI-assisted search and information platform for energy professionals. The platform helps users discover new sources and understand shifting market dynamics. It enables users to answer complex questions related to the energy transition. The platform offers dynamically updated datasets collated from authoritative sources. It also provides alerts and search functionalities for energy dockets, documents, and filings.
Fliar Intelligence Index™ 45how this company ranks against its industry peers
Funding
top 25%Talent
top 38%Patents
top 39%Innovation
top 42%Tech
bottom 46%Market
bottom 37%Funding: Raised $31.8M across 2 rounds · 2 rounds over 2 yrs (1.0/yr) · Last round Series A (Feb 2026)
Talent: 2 named leaders on record · 2 C-suite/founder profiles curated
Patents: 13 patents matched (strict assignee match) · 7 filings since 2022 vs 3 in 2017-21 · Latest publication 2024
Funding rounds
- Feb 2026Series A$21M
- Apr 2024Seed$10.8M
Founders & team
Investors
Obvious Ventures, Congruent Ventures, Overture, Energize Capital, Sabanc Climate Tech, Zero Infinity Partners
Tech stack
CdnjsCloudflareCloudflare Bot ManagementCore-JsGoogle AnalyticsGoogle Font Api
#11
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
#12
Series A · Jacksonville, Florida · founded 2024$12.2Mraised▾
Series A · Jacksonville, Florida · founded 2024
Space-based energy grid solutions for space operations. It provides users with a power supply for satellites in LEO. It allows satellites to harness solar power, enabling them to perform power-intensive tasks such as on-orbit processing, remote sensing, and telecommunications without the constraints of limited onboard power sources. It transmits broad-spectrum energy compatible with state-of-the-art triple junction solar cells to client satellite solar arrays.
Fliar Intelligence Index™ 50how this company ranks against its industry peers
Talent
top 28%Funding
top 32%Growth
top 35%Moat
top 39%Tech
top 45%Global
bottom 36%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) · Last round Series A (May 2026)
Growth: Fresh capital in last 24 mo
Audience (LinkedIn): 12k LinkedIn followers
Hiring (LinkedIn): 6 hiring posts in 12 mo (public) · momentum +6 · hiring: Opto-Mechanical Engineer, Mechanical Engineer
Funding rounds
- May 2026Series A$65M
- Jul 2024Seed$12.2M
Founders & team
Investors
B Capital, Initialized Capital, Cerberus Ventures, Shield Capital, GreatPoint Ventures, Oceans
Tech stack
ContentsquareFramer SitesGodaddyGoogle AnalyticsGoogle Font ApiGoogle Tag Manager
Funding & investor landscape
$20.4Btotal disclosed funding
373companies funded
1,445disclosed rounds
5rounds last 90 days
Most active investors
Techstars17 rounds
Notable founders
Zaid Ashai
CEO · Nexamp
Jack Norbeck
Co-Founder and CTO · Fervo Energy
Tim Latimer
Co-Founder · Fervo Energy
Jon Powers
Co Founder · Clean Capital
Thomas Byrne
Co-Founder · Clean Capital
Paul Warley
CEO · Ascent Solar
Nate Walkingshaw
Co-Founder & CEO · Torus
Gilbert Lee
Co-Founder & CMO · Torus
Ted Wiley
Co-Founder + President & COO · Form Energy
William Woodford
Co-Founder & CTO · Form Energy
Cindy Taff
Chief Executive Officer · Sage Geosystems
Prashant Gupta
Co-Founder · Lancium
Prism market signals · United States · country-scoped Prism corpus, 1,902,389 docs
Market landscape — 10 sub-themes by coverage
Share of Renewable Energy 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 Green Hydrogen is moving in the United States
A read on the academic research around Green Hydrogen — which themes are gaining ground, the institutions and researchers driving them, and how the tone is shifting. Based on 4,853 United States-affiliated papers.
research sentiment over time
200820172026
enthusiastic · positive · guarded tone
Tone is overwhelmingly optimistic and steady — the enthusiastic (strongly-positive) share moved 68% → 70% across 2008–2026.
top research entities
- National Laboratory of the Rockies149
- Lawrence Berkeley National Laboratory132
- Georgia Institute of Technology96
- Pacific Northwest National Laboratory90
- Stanford University88
leading researchers
Tarek M. Abdel‐Fattah · Katherine E. Ayers · Bryan S. Pivovar · Anthony H. McDaniel · Dong Ding · Daniel V. Esposito · Wei Wu · Guido Bender
▲
Breakthroughs1,457 · 30%
▼ 31%→29% share
▼0.9× share momentum6 median citations58% since 2021mostly methods-led
Oxygen evolution research is surging — papers quintupled from 17 to 89, signaling rapid electrocatalyst gains.
rising sub-themes (early→recent)
- Hydrogen production155→386
- Catalysis129→302
- Oxygen evolution17→89
- Electrolysis35→99
- Production (economics)9→70
Newly emergingElectrosynthesis 0→11 · Alloy 0→11 · Hydroxide 0→10
Landmark Atomic cobalt on nitrogen-doped graphene for hydrogen generation · 1,584 cites
◆
Advancements2,308 · 48%
47%→47% share
▲1.0× share momentum4 median citations58% since 2021mostly empirical
Production economics research is intensifying — advancements papers jumped 17 to 159, reflecting maturing cost-reduction focus.
rising sub-themes (early→recent)
- Hydrogen production225→674
- Production (economics)17→159
- Catalysis177→306
- Renewable energy34→162
- Electrolysis58→157
Newly emergingBifunctional 0→12 · Power (physics) 0→11 · Sustainability 0→10
Landmark Benchmarking Hydrogen Evolving Reaction and Oxygen Evolving Reaction Electrocatalysts for Solar Water Splitting Devices · 3,898 cites
▼
Concerns600 · 12%
▲ 10%→14% share
▲1.4× share momentum2 median citations68% since 2021mostly empirical
Hydrogen economy concerns are escalating — papers rose 6 to 63, with life-cycle assessment newly emerging at 13.
rising sub-themes (early→recent)
- Hydrogen production52→208
- Production (economics)7→92
- Hydrogen economy6→63
- Renewable energy23→77
- Hydrogen technologies7→52
Newly emergingSoftware deployment 0→17 · Anode 0→14 · Life-cycle assessment 0→13
Landmark Hydrogen production from water electrolysis: role of catalysts · 1,372 cites
RESEARCH HOTSPOTS · United States
Where green hydrogen 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 Area267 · +0.53
Boston194 · +0.54
Los Angeles155 · +0.61
Atlanta100 · +0.59
Pittsburgh77 · +0.49
New York76 · +0.55
Chicago56 · +0.62
Philadelphia48 · +0.51
Austin40 · +0.43
Ann Arbor32 · +0.62
PATENT SIGNAL · United States
Who's filing green hydrogen patents in the United States
United States green hydrogen patent filing is accelerating — 37,180 filings from 8,000 assignees (2016–2025), led by AIR PROD & CHEM, Chevron USA, UOP; annual filings 3545→4185.
37,180 filings8,000 assigneespeak 4406/yr2016–2025
filing momentum (YoY 2016–2025)
top patent filers
- AIR PROD & CHEM1590
- Chevron USA1584
- UOP1380
- Exxonmobil RES & ENG1227
- UNIV California1193
- Praxair Technology887
- Massachusetts INST Technology750
- UNIV RICE William M680
Common questions
How many Renewable Energy Tech companies are there in United States?
Radar tracks 841 indexable Renewable Energy Tech companies headquartered in United States that meet our profile-completeness bar.
What is the total funding raised by Renewable Energy Tech companies in United States?
The Renewable Energy Tech companies in United States on this list have raised a combined $20.4B in disclosed equity funding across 373 funded companies.
Which is the highest-funded Renewable Energy Tech company in United States?
Nexamp is the highest-funded Renewable Energy Tech company in United States, with $1.3B in disclosed equity funding.
How many Renewable Energy Tech companies in United States are funded?
373 of the 841 Renewable Energy Tech companies in United States on this list have disclosed at least one equity funding round.
How many Renewable Energy Tech unicorns are there in United States?
6 Renewable Energy Tech companies in United States on this list are valued at $1B or more.
Who are the top investors in United States Renewable Energy Tech companies?
The most active investors in United States Renewable Energy Tech companies on this list include OSTI, DOE, National Science Foundation, Climate Capital, Greentown Labs.
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.