Best Environment Companies in Seattle, United States
The 62 best Environment companies in Seattle, United States in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: USNC.
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 Seattle
| # | Company | Disclosed funding | Last round | Stage | Founder | Founded | Tech stack | Patents & IP focus | Recent signals |
|---|---|---|---|---|---|---|---|---|---|
| 1 | USNC Manufacturer of micro modular reactors | $47M | 22 mo ago | Series B | Francesco Venneri CEO | 2011 | GhostNode.jsVimeo+17 | — | — |
| 2 | DTG Recycle Manufacturer of recycled roofing and wooden materials | $32M | 77 mo ago | Acquired | Dan Guimont Founder & Chairman | 1999 | WordPressMySQLPHP+25 | — | — |
| 3 | OneEnergy Renewables Develops solar projects | $16M | 86 mo ago | Series B | — | 2009 | RubyUbuntuZURB Foundation+16 | — | 1 partnership |
| 4 | Green Canopy NODE Developer of green building communities | $15M | 55 mo ago | Series C | Andy Wolverton Co-Founder | 2010 | Squarespace CommerceSquarespaceTypeScript+23 | — | — |
| 5 | Banyu Carbon Provider of CO2 removal services | $6M | 28 mo ago | Seed | Alexander Gagnon Co-Founder & CEO | 2022 | — | — | — |
| 6 | Evergreen Developer of solar energy projects | $6M | 39 mo ago | Seed | Cris Eugster CEO and Co-founder | 2021 | — | 15 patents Precision crop disease forecasting and UV-based plant treatment systems for agricultural disease control | — |
| 7 | Ravelfuture Provider of textile recycling solutions for blended materials 55Funding top 39%Global bottom 48% All 2 signals ▾Fundingtop 39% Globalbottom 48% Funding: Raised $3.3M across 2 rounds · 2 rounds over 2 yrs (1.0/yr) Global: Investors from 2 countries beyond United States rank vs industry peers · Fliar Intelligence Index 55/100 | $3M | 15 mo ago | Seed | — | 2019 | — | — | — |
| 8 | Teichos Energy Develops large-scale solar energy projects, providing sustainable energy solutions | $2M | 60 mo ago | Seed | — | 2012 | — | — | — |
| 9 | Tuusso Energy Utility-scale solar plant developer minimizing risk and maximizing clean energy competitiveness | $2M | 190 mo ago | Series A | — | 2008 | — | — | — |
| 10 | Micro Energy Credits Empowering communities with clean energy through carbon finance and microloans | $1M | 138 mo ago | Seed | James Dailey Co-Founder & Director | 2007 | WordPressMySQLRedis+24 | — | — |
| 11 | Pure Blue Tech Developer of self-cleaning membrane elements for efficient water generations | $1M | 39 mo ago | Seed | Ryan Vogel CEO & Co-Founder | 2013 | ReactApache HTTP ServerGoogle Font API+3 | — | — |
| 12 | Climate Foundation Provider of climate change in critical ecosystems | $1M | 49 mo ago | Funding Raised | Brian Herzen Founder | 2007 | Cart FunctionalityWeeblyMySQL+23 | — | — |
| 13 | DH Environmental Provider of environmental consulting services | $750K | 68 mo ago | Funding Raised | — | 2003 | — | 15 patents Bio-based polymer production, biomass boiler emission control, and in-situ multi-species bacterial biosensing | — |
| 14 | PotaVida Provider of water management services | $475K | 116 mo ago | Seed | — | 2011 | — | 3 patents Solar-powered water purification using UV disinfection technology | — |
| 15 | FabCab Offers architectural designing services focused on timber frame and SIP homes | $300K | 153 mo ago | Seed | Bruce Waltar owner | 2010 | WordPress Block EditorWordPressMySQL+19 | — | — |
| 16 | Confluence Environmental Provider of environmental science, project management, and regulatory compliance services | $246K | 117 mo ago | Funding Raised | — | 2007 | — | — | — |
| 17 | CTFusion Online gambling blog providing insights and reviews of slot games | $148K | 95 mo ago | Deadpooled | Derek Sutherland Co-Founder & CEO | 2015 | — | — | — |
Top 12 Environment companies in Seattle
#1
Series B · Seattle, Washington · founded 2011 · 50 employees$47.4Mraised▾
Manufacturer of micro modular reactors. They also manufacture their own advanced fuel
- Aug 2024Grant (prize money)$385.1K
- May 2023Grant (prize money)$174.9K
- Jun 2022Grant (prize money)$199.4K
- Jan 2022Series B$30M
#2
Seed · Seattle, Washington · founded 2019 · 5 employees$3.3Mraised▾
Provider of textile recycling solutions for blended materials. It offers a proprietary process that isolates materials from blended fibers, maximizing recovery and minimizing waste. This process transforms textile waste into reusable materials, such as rPET pellets, which can be used to create new fibers, yarns, fabrics, and clothing. The technology maintains the integrity of base fibers while purifying them, using a safe, energy-efficient, closed-loop system that avoids additional waste or byproducts. The company aims to enable the circular economy for apparel, diverting textile waste from landfills and reducing reliance on fossil fuels.
- Mar 2025Seed—
- Mar 2025Grant (prize money)$994.9K
- Jul 2024Seed$2.3M
#3
Seed · Seattle, Washington · founded 2022 · 6 employees$6.5Mraised▾
Provider of CO2 removal services
- Feb 2024Seed$6.5M
- Jan 2024Grant (prize money)—
- Jan 2024Grant (prize money)$274.1K
#4
Series C · Seattle, Washington · founded 2010 · 33 employees$15Mraised▾
Developer of green building communities
- Nov 2021Series C$8.6M
- Aug 2019Series B$5.1M
- May 2014Seed$316K
- May 2013Seed$240K
#5
Seed · Seattle, Washington · founded 2021 · 9 employees$6.1Mraised▾
Developer of solar energy projects
- Mar 2023Seed$6.1M
#6
Acquired · Seattle, Washington · founded 1999 · 1 employees$32Mraised▾
Manufacturer of recycled roofing and wooden materials
- Jan 2020PE$32M
#7
Series B · Seattle, Washington · founded 2009 · 36 employees$15.9Mraised▾
Develops solar projects
- Apr 2019Conventional Debt$200K
- Jul 2017Series B$3.6M
- Apr 2017Series B$4.7M
- Mar 2017Conventional Debt$2M
#8
Seed · Seattle, Washington · founded 2013 · 9 employees$1.2Mraised▾
Operator of a membrane technology company intended to generate and reuse water from various sources. The company offers ultrasonic and nanopatterned membrane technologies that combat membrane fouling, allowing industrial companies and municipalities to filter and purify water, wastewater, seawater, milk, and other liquids with less money, maintenance, chemicals, downtime, and waste disposal.
- Mar 2023Seed$871K
- Aug 2016Conventional Debt$300K
#9
Seed · Seattle, Washington · founded 2012$2.4Mraised▾
Develops large-scale solar energy projects, providing sustainable energy solutions. The company focuses on developing utility-scale photovoltaic solar generation projects, offering renewable energy resources to public and private institutions. They work with landowners to develop clean, sustainable, and eco-friendly energy projects, providing cost-effective and resilient energy solutions. Their strategy involves long-term fixed-price energy contracts and associated renewable energy attributes. The team's expertise allows for low-cost analysis, efficient engineering design, and value-optimized project financing, offering low-cost clean energy. They contribute to sustainability goals, providing clean energy and strategic energy management.
- Jun 2021Seed$2.4M
#10
Funding Raised · Seattle, Washington · founded 2007$1Mraised▾
Provider of climate change in critical ecosystems
- May 2022Grant (prize money)$1M
#11
Funding Raised · Seattle, Washington · founded 2003$750Kraised▾
Provider of environmental consulting services
- Oct 2020Conventional Debt$750K
#12
Series A · Seattle, Washington · founded 2008 · 5 employees$2Mraised▾
Utility-scale solar plant developer minimizing risk and maximizing clean energy competitiveness. The company focuses on developing cost-effective utility-scale solar plants. They achieve this through careful site selection, collaboration with communities, and avoidance of environmental impacts. They develop in areas where solar generation is competitive and major infrastructure upgrades are not required. The company partners with utilities and municipalities to develop solar projects that meet sustainability goals. They offer various contracting options to corporate customers, helping them meet sustainability targets and manage energy costs. The company emphasizes quality over quantity, striving to develop the most competitive projects with a high success rate. Their approach includes hands-on management, optimized system design, and the use of proven technologies to deliver reliable clean electricity.
- Aug 2010Series A$2M
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
Common questions
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.