Best Environment Companies in New York, United States
The 358 best Environment companies in New York, United States in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: TerraForm Power.
Our analysis of 90 Environment companies
$38.2b in tracked funding; 89% of the stack-profiled cohort runs cloud-native; funding activity peaked in 2025.
Ranked: Best Environment companies in New York
| # | Company | Disclosed funding | Last round | Employees | Founded | Founder | Patents & IP focus | Recent signals |
|---|---|---|---|---|---|---|---|---|
| 1 | TerraForm Power Leading renewable energy provider with wind, solar, and storage assets | $3.7B | 80 mo ago | — | 2014 | John Stinebaugh CEO | — | — |
| 2 | Madison Energy Investments Provider of platform for investors 45Funding top 17%Tech top 46%Global bottom 38%Market bottom 33% All 5 signals ▾Fundingtop 17% Techtop 46% Globalbottom 38% Marketbottom 33% Newsbottom 22% Funding: Raised $800M across 1 rounds · 1 rounds over 1 yrs (1.0/yr) Tech: 21 technologies across 5/8 capability areas · Cloud: Cloudflare rank vs industry peers · Fliar Intelligence Index 45/100 | $800M | 9 mo ago | 32 | 2019 | — | — | — |
| 3 | DSD Provider of solar panel installation and operation & maintenance services 69Funding top 16%Market top 45%Talent bottom 49%Global bottom 45% All 6 signals ▾Fundingtop 16% Markettop 45% Talentbottom 49% Globalbottom 45% Moatbottom 38% Newsbottom 22% Funding: Raised $605M across 8 rounds · 8 rounds over 5 yrs (1.6/yr) Market: 192 employees (top 31% of Energy) rank vs industry peers · Fliar Intelligence Index 69/100 | $605M | 9 mo ago | 192 | 2012 | Erik Schiemann CEO | — | — |
| 4 | Concrete Pumping Holdings Provider of concrete pumping services and concrete waste management solutions | $357M | 90 mo ago | 1,650 | 1983 | — | 3 patents Underground mine sealing systems and pressurized pipe containment sleeves | 1 partnership · 1 expansion |
| 5 | Elysian Provider of integrated carbon capture and storage solutions. | $350M | 54 mo ago | 6 | 2018 | Bret Logue CEO | — | — |
| 6 | MN8 Energy Provider of solar energy services | $325M | 26 mo ago | 280 | 2022 | — | — | 1 expansion · 1 award |
| 7 | Kilowatt Financial Offers solar finance to homeowners | $300M | 133 mo ago | 51 | 2011 | — | — | — |
| 8 | PosiGen Provider of solar panel energy solution for enterprises 64Innovation top 20%Funding top 22%Product top 29%News top 30% All 10 signals ▾Innovationtop 20% Fundingtop 22% Producttop 29% Newstop 30% Techtop 35% Moattop 39% Markettop 44% Talentbottom 49% Globalbottom 43% Growthbottom 35% Innovation: 9 product lines Funding: Raised $280M across 13 rounds · 13 rounds over 12 yrs (1.1/yr) rank vs industry peers · Fliar Intelligence Index 64/100 | $280M | 25 mo ago | 600 | 2011 | Thomas Neyhart Founder & Executive Chairman | — | — |
| 9 | Sunlight Financial Residential solar finance | $260M | 96 mo ago | 195 195 → 169 (-13%) | 1988 | — | — | 1 partnership |
| 10 | United Wind Clean, reliable wind and solar energy solutions for a sustainable future | $209M | 103 mo ago | 21 | 2013 | — | — | — |
| 11 | Greenbacker Sustainable infrastructure investment and management firm focused on renewable energy sector | $150M | 42 mo ago | 196 | 2011 | David Zackowitz Managing Director | — | 3 job openings |
| 12 | GameChange Solar Designer & manufacturer of fixed tilt and tracker solar racking systems | $150M | 54 mo ago | 139 | 2012 | Andrew Worden Founder & CEO | 58 patents Photovoltaic module mounting hardware and self‑shielding tracking systems | 4 job openings |
| 13 | Onyx Renewable Partners Renewable Energy development company 48Funding top 26%Growth top 43%Moat top 48%Market top 49% All 7 signals ▾Fundingtop 26% Growthtop 43% Moattop 48% Markettop 49% Techbottom 40% Globalbottom 32% Newsbottom 21% Funding: Raised $132M across 3 rounds · 3 rounds over 12 yrs (0.2/yr) Growth: Headcount 54 → 69 (+28%) across vintages · Fresh capital in last 24 mo rank vs industry peers · Fliar Intelligence Index 48/100 | $132M | 11 mo ago | 69 69 → 75 (+9%) | 2014 | — | — | — |
| 14 | UGE Offers solar and wind systems | $120M | 29 mo ago | 64 | 2008 | — | — | — |
| 15 | CrossBoundary Energy Provider of fully financed renewable energy solutions for commercial and industrial clients 48Growth top 25%News top 31%Funding top 37%Tech top 41% All 6 signals ▾Growthtop 25% Newstop 31% Fundingtop 37% Techtop 41% Globalbottom 37% Marketbottom 30% Growth: Fresh capital in last 24 mo News: 5 BI events in 12 mo (of 25 tracked, 4 types) · +150% YoY rank vs industry peers · Fliar Intelligence Index 48/100 | $83M | 1 mo ago | 21 | 2014 | — | — | — |
| 16 | Winters Bros Provider of waste collection and recycling services | $71M | 108 mo ago | 151 | 1950 | Joe Winters CEO | — | — |
| 17 | Terra-Gen Independent renewable energy power producer | $55M | 27 mo ago | 312 312 → 302 (-3%) | 2007 | — | — | 1 partnership |
| 18 | FTL Solar Solar Fabrics and textiles | $53M | 186 mo ago | — | 1998 | Robert Lerner Co-Founder | — | — |
| 19 | 3Power Energy Group Solar, wind and hydro IPP | $50M | 183 mo ago | 6 | 2002 | Toby Durrant CEO | — | — |
| 20 | Caryinstitute Provider of ecosystem science research and education | $40M | 13 mo ago | 102 | 1983 | — | — | — |
| 21 | OwnEnergy Promoting environmental awareness through conservation, biodiversity, and renewable resources | $39M | 165 mo ago | 20 | 2007 | — | — | — |
| 22 | SOLUNA Developer of solar and wind energy projects | $35M | 41 mo ago | 32 | 2018 | — | 11 patents Integrated modular data center infrastructure with advanced thermal and energy optimization | — |
| 23 | Bright Power Energy audit services and management solutions | $33M | 20 mo ago | 18 | 2004 | Jeff Perlman Founder | — | — |
| 24 | Anellotech Provider of technology to convert waste and non-food biomass to biochemicals | $31M | 71 mo ago | 27 27 → 17 (-37%) | 2008 | David Sudolsky President & CEO | 266 patents Patents concentrated in chemistry & materials | — |
| 25 | Plastic2Oil Provider of plastic waste recycling services | $31M | 117 mo ago | 4 | 2006 | — | — | — |
| 26 | Common Energy Clean energy solutions for businesses, non-profits, and consumers | $16M | 31 mo ago | 33 33 → 77 (+133%) | 2017 | Christian Von Hassell CEO & Director | — | — |
| 27 | Prism Solar Innovating bifacial solar technology for maximum energy, quality, and aesthetic appeal | $16M | 175 mo ago | 30 | 2004 | Randy Stewart CEO | 23 patents Patents concentrated in electrical & electronics | — |
| 28 | US Light Energy Developer of solar energy projects | $16M | 33 mo ago | 18 | 2011 | Mark Richardson CEO | — | — |
| 29 | Relevate Power Provider of water management services | $15M | 23 mo ago | — | 2023 | Michael Prendergast Co-Founder | — | — |
| 30 | LIS Technologies Provider of laser isotope separation technologies optimized for uranium (HALEU) power generation 32Talent top 28%Funding top 38%Growth top 40%News bottom 47% All 8 signals ▾Talenttop 28% Fundingtop 38% Growthtop 40% Newsbottom 47% Techbottom 42% Moatbottom 38% Globalbottom 29% Marketbottom 22% Talent: 3 named leaders on record · 3 C-suite/founder profiles curated Funding: Raised $13.5M across 7 rounds · 7 rounds over 3 yrs (2.3/yr) rank vs industry peers · Fliar Intelligence Index 32/100 | $14M | 3 mo ago | — | 2023 | Jay Yu Co-Founder | — | 1 job opening |
| 31 | Level Solar Offers solar installation services at zero upfront cost | $13M | 118 mo ago | 51 | 2013 | — | — | — |
| 32 | Nagare Membranes Provider of drinking water services | $10M | 138 mo ago | — | 2013 | Rob McGinnis Founder & CEO | 11 patents Advanced asymmetric hollow‑fiber and nanotube membranes for heat exchange and forward‑osmosis processes | — |
| 33 | Scinor Manufacturer of fibre membranes for water treatment services | $10M | 159 mo ago | — | 2009 | Thomas Poschmann CEO | — | — |
| 34 | Nano Nuclear Manufacturer of nuclear reactors | $8M | 8 mo ago | 5 | 2021 | Jay Yu Founder | — | — |
| 35 | Everstar AI Developer of artificial intelligence to accelerate nuclear power deployment | $8M | 15 mo ago | — | 2024 | Kevin Kong Founder & CEO | — | — |
| 36 | SUNation Offers commercial and residential solar solutions 29Funding top 34%Market bottom 48%Tech bottom 45%News bottom 39% All 6 signals ▾Fundingtop 34% Marketbottom 48% Techbottom 45% Newsbottom 39% Growthbottom 34% Globalbottom 30% Funding: Raised $6.7M across 2 rounds · 2 rounds over 1 yrs (2.0/yr) Market: 106 employees (top 33% of Environment) · Top-5,000,000 web property rank vs industry peers · Fliar Intelligence Index 29/100 | $7M | 2 mo ago | 106 106 → 98 (-8%) | 2003 | — | — | — |
| 37 | Enernet Global Developer of wind energy projects | $7M | 63 mo ago | 23 | 2015 | — | 2 patents Microgrid predictive control systems and functional-programming-based data buffer management software | — |
| 38 | Standard Carbon Home | Standard Carbon | $6M | 14 mo ago | 21 | 2020 | — | — | — |
| 39 | ContourGlobal Global independent power producer driving sustainable energy solutions and reliable partnerships | $6M | 69 mo ago | 108 | 2005 | Joseph Brandt Co-Founder & CEO | — | 1 internship · 1 expansion |
| 40 | Ash Improvement Technology Limited information available | $6M | 126 mo ago | 11 | 2009 | Wayne Fried Co-Founder | — | — |
| 41 | Aircela Manufacturer of fossil-free gasoline from air and renewable energy. | $6M | 40 mo ago | 18 | 2020 | Mia Dahlgren Co-Founder | 4 patents Patents concentrated in transport & manufacturing processes | — |
| 42 | Bnwaterkeeper Provider of freshwater ecosystem restoration and advocacy services 53Growth top 28%Funding top 43%Tech bottom 43%Market bottom 41% All 5 signals ▾Growthtop 28% Fundingtop 43% Techbottom 43% Marketbottom 41% Globalbottom 33% Growth: Web rank 10,000,000 → 5,000,000 YoY · Fresh capital in last 24 mo Funding: Raised $4.8M across 12 rounds · 12 rounds over 19 yrs (0.6/yr) rank vs industry peers · Fliar Intelligence Index 53/100 | $5M | 15 mo ago | 39 | 1989 | — | — | — |
| 43 | SunMaxx Solar Manufacturer and supplier of solar powered thermal products | $4M | 40 mo ago | 19 | 2006 | — | — | — |
| 44 | Columbus Photovoltaics Solar energy research company developing ultra-thin add-on layer for solar cells | $3M | 65 mo ago | 2 | 2011 | Corey Lerner Founder & President | 18 patents Direct semiconductor photovoltaic devices and thin‑film solar cell technologies | — |
| 45 | DPO Developer of solar and wind energy projects | $3M | 52 mo ago | 8 | 2020 | Andrew Webber Founder | — | — |
| 46 | Sistine Solar Manufactures colored panels | $2M | 59 mo ago | 7 | 2012 | — | — | — |
| 47 | EXODYS ENERGY Developer of closed-loop and circular nuclear systems to recycle nuclear waste into clean energy | $2M | 24 mo ago | — | 2022 | Carl Perez CEO | — | 1 partnership |
| 48 | Cortex Fusion Systems Provider of fusion systems | $2M | 24 mo ago | 1 | 2021 | — | — | — |
| 49 | Atrevida Science Developer of active morphing wind turbine blades for increased efficiency. | $512K | 17 mo ago | 7 | 2019 | — | — | — |
| 50 | Flower Turbines Flower Turbines: Innovative small wind turbines for distributed energy generation | $66K | 13 mo ago | 15 | 2013 | Daniel Farb Founder & CEO | 47 patents Advanced fluid turbine generators, shaftless designs, and smart power electronics for renewable energy. | — |
Top 12 Environment companies in New York
#1
Series B · New York City, New York · founded 2014 · 21 employees$83Mraised▾
Provider of fully financed renewable energy solutions for commercial and industrial clients. They offer customized clean energy options, including long-term energy strategies. The company delivers renewable power through specialized expertise, ensuring compliance with regulatory requirements and environmental standards. They provide comprehensive packages inclusive of technologies and suppliers optimal for each business.
- Apr 2026PE$40M
- Aug 2025Series B$40M
- Jul 2019Conventional Debt$3M
#2
Acquired · Schenectady, New York · founded 2012 · 192 employees$605Mraised▾
Provider of solar panel installation and operation & maintenance services
- Aug 2025Conventional Debt$238M
- Nov 2023Series E$250M
- Dec 2022Conventional Debt$155M
- May 2022Series D$70M
#3
Acquired · New York City, New York · founded 2019 · 32 employees$800Mraised▾
Provider of platform for investors
- Sep 2025Conventional Debt$800M
#4
Series A · New York City, New York · founded 2023$13.5Mraised▾
Provider of laser isotope separation technologies optimized for uranium (HALEU) power generation. It developed a patented laser technology that uses infrared wavelengths to selectively excite molecules.
- Mar 2026Series A$7.1M
- Jan 2026Series A$17M
- May 2025Series A$12M
- Dec 2024Series A$22M
#5
Acquired · Ronkonkoma, New York · founded 2003 · 106 employees$6.7Mraised▾
Offers commercial and residential solar solutions
- Apr 2026Seed$1.2M
- Apr 2025Conventional Debt$5.5M
#6
Late Stage · New York City, New York · founded 2014 · 69 employees$132Mraised▾
Onyx is a renewable energy development company that is focused on greenfield development in the North American solar and wind sectors. The company is a full-service firm with capabilities including development and construction through financing and operations, Onyx is able to provide solutions to large energy users and landowners in North America.
- Jun 2025Conventional Debt$260M
- May 2018PE$79M
- 2017PE$53M
- Oct 2014PE—
#7
Funding Raised · Millbrook, New York · founded 1983 · 102 employees$40.3Mraised▾
Provider of ecosystem science research and education. This entity conducts research on various environmental issues, including disease ecology, freshwater systems, forests, and urban ecology. It offers educational programs at multiple levels, from K-12 to graduate studies, encompassing field trips, workshops, and research opportunities. The research findings inform effective environmental management strategies, and educational initiatives aim to increase environmental literacy. The organization shares its scientific knowledge through publications, seminars, and public outreach.
- Apr 2025Grant (prize money)$55.9K
- Mar 2025Grant (prize money)$771.7K
- Feb 2025Grant (prize money)$102.9K
- Dec 2013Grant (prize money)$187.7K
#8
Public · New York, New York · founded 2021 · 5 employees$8.3Mraised▾
Manufacturer of nuclear reactors
- Oct 2025Post IPO$400M
- May 2025Post IPO$105M
- Jan 2025Post IPO$718K
- Jan 2024Series A$2.2M
#9
Series E · New York City, New York · founded 2011 · 600 employees$280.2Mraised▾
Provider of solar panel energy solution for enterprises
- May 2024Venture Debt$150M
- Aug 2023Conventional Debt$12M
- Jan 2022Series E$100M
- Apr 2021Series D$27M
#10
Series B · New York City, New York · founded 2004 · 18 employees$33.3Mraised▾
Bright Power does energy audit for buildings, designs energy efficiency improvements and managed them. Their clients include building owners, management companies, developers, contractors, architects, governments and utility companies. Their services include energy benchmarking, energy audits, financial and technical feasibility analysis, grant/rebate assistance, green building (LEED) consulting and trainings for professionals and building managers.
- Sep 2024Series B$2.9M
- Jul 2023Series B$4.1M
- Aug 2021Series B$24.5M
- Dec 2014Conventional Debt$10M
#11
Series D · New York City, New York · founded 2022 · 280 employees$325Mraised▾
Provider of solar energy services
- Apr 2024Series D$325M
#12
Series A · New York City, New York · founded 2020 · 21 employees$6.4Mraised▾
Standard Carbon technology provides a sustainable solution to climate change by converting CO2 emissions to energy that can be stored and deployed economically anywhere worldwide using the current utility infrastructure. Turn carbon pollution into clean, profitable energy. Standardcarbon is the key to a trillion dollar clean energy economy of the future.
- Apr 2025Series A$6.4M
Funding & investor landscape
Notable founders
Market landscape — 10 sub-themes by coverage
Share of Environment coverage by sub-theme.
Regulatory-risk over time rising
Funding & growth over time
funding rising · growth rising
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.
- United States Geological Survey157
- Cary Institute of Ecosystem Studies112
- Environmental Protection Agency84
- National Research Council79
- National Park Service76
- Software deployment2→31
- Pollution3→27
- Air quality index1→25
- Water quality10→34
- Air pollution3→25
- Air quality index14→60
- Air pollution8→51
- Pollutant4→32
- Sampling (signal processing)14→42
- Water quality23→48
- Human health1→32
- Pollution4→33
- Air quality index6→31
- Pollutant6→28
- Biodiversity1→22
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.
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.
- LEEO41
- Valencell25
- United Parcel Service21
- Honeywell INT20
- Apple18
- Venturedyne18
- Pillar TECH17
- IND Scient16