Best Environment Companies in Austin, United States
The 100 best Environment companies in Austin, United States in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: SolarBridge.
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 Austin
| # | Company | Disclosed funding | Last round | Stage | Employees | Founder | Tech stack | Patents & IP focus | Recent signals |
|---|---|---|---|---|---|---|---|---|---|
| 1 | SolarBridge Manufactures microinverters | $326M | 147 mo ago | Acquired | 79 | — | WordPressMySQLPHP+17 | 100 patents Advanced inverter control, power‑line communication, and ripple reduction for photovoltaic systems | — |
| 2 | Treaty Oak Clean Energy Developer of utility scale solar projects 65Funding top 23%Talent bottom 49%Global bottom 48% All 3 signals ▾Fundingtop 23% Talentbottom 49% Globalbottom 48% Funding: Raised $300M across 1 rounds · 1 rounds over 1 yrs (1.0/yr) Talent: 1 named leader on record · 1 C-suite/founder profile curated rank vs industry peers · Fliar Intelligence Index 65/100 | $300M | 10 mo ago | Acquired | 20 | Chris Elrod Chief Executive Officer | — | — | — |
| 3 | Industrial Sun Developer of solar energy projects | $120M | 39 mo ago | Series C | 45 | — | — | — | — |
| 4 | TechTurn Provider of modules | $50M | 238 mo ago | Acquired | 100 | — | — | — | — |
| 5 | Pecan Street Provider of solar educational, training, and water management services 29Funding top 46%Tech top 48%Market bottom 36%Global bottom 25% All 4 signals ▾Fundingtop 46% Techtop 48% Marketbottom 36% Globalbottom 25% Funding: Raised $43.1M across 3 rounds · 3 rounds over 16 yrs (0.2/yr) Tech: 26 technologies across 4/8 capability areas · Cloud: Cloudflare rank vs industry peers · Fliar Intelligence Index 29/100 | $43M | 12 mo ago | Funding Raised | 44 | — | WordPress Block EditorWordPressMySQL+22 | — | — |
| 6 | Aalo Atomics Developer of nuclear energy projects 45Growth top 30%Funding top 32%News top 38%Talent top 38% All 8 signals ▾Growthtop 30% Fundingtop 32% Newstop 38% Talenttop 38% Techbottom 42% Globalbottom 38% Moatbottom 38% Marketbottom 20% Growth: Fresh capital in last 24 mo Funding: Raised $33.3M across 3 rounds · 3 rounds over 3 yrs (1.0/yr) rank vs industry peers · Fliar Intelligence Index 45/100 | $33M | 10 mo ago | Series B | 3 | Yasir Arafat Co-Founder & CTO | WebflowMicrosoft 365jQuery+9 | — | — |
| 7 | Accelergen Developer of renewable power generation and solar energy projects 5Funding bottom 48%Global bottom 29%News bottom 27%Market bottom 12% All 4 signals ▾Fundingbottom 48% Globalbottom 29% Newsbottom 27% Marketbottom 12% Funding: Raised $30.0M across 2 rounds · 2 rounds over 3 yrs (0.7/yr) Global: Single-market focus (United States) rank vs industry peers · Fliar Intelligence Index 5/100 | $30M | 18 mo ago | Series B | 4 | — | — | — | — |
| 8 | Omni Water Solutions Provider of water treatment services | $26M | 137 mo ago | Deadpooled | 25 | — | — | — | — |
| 9 | ZEEP Provider of organic waste management services | $22M | 98 mo ago | Series B | 16 | Barry Williamson Co-Founder | WordPressMySQLPHP+16 | — | — |
| 10 | FTC Solar Developer of solar energy power projects 69Patents top 23%Fin. health top 24%Product top 26%Innovation top 38% All 12 signals ▾Patentstop 23% Fin. healthtop 24% Producttop 26% Innovationtop 38% Fundingtop 39% Growthtop 44% Techtop 45% Newstop 49% Marketbottom 47% Moatbottom 47% Globalbottom 44% Partnersbottom 32% Patents: 95 patents matched (strict assignee match) · 70 filings since 2022 vs 23 in 2017-21 Fin. health: Revenue ~$99.7M (FY2024) · Net margin 188.8% rank vs industry peers · Fliar Intelligence Index 69/100 | $15M | 18 mo ago | Public | 221 221 → 296 (+34%) | — | DrupalApple iCloud MailMicrosoft 365+25 | 95 patents Patents concentrated in electrical & electronics | 1 partnership |
| 11 | Circular Energy Solar installation and financing services services | $12M | 131 mo ago | Deadpooled | 9 | — | — | — | — |
| 12 | Aquasana Provider of home water filtration systems | $11M | 134 mo ago | Acquired | 64 | — | Amazon WebstoreCart FunctionalitySalesforce Commerce Cloud+39 | 41 patents Point-of-use liquid water filtration systems, especially pitcher and household filter designs. | 1 launch |
| 13 | KMX Technologies Provider of water treatment services 55Growth top 12%Funding top 36%Fin. health top 49%Tech bottom 48% All 7 signals ▾Growthtop 12% Fundingtop 36% Fin. healthtop 49% Techbottom 48% Globalbottom 37% Marketbottom 24% Newsbottom 21% Growth: Revenue +2820% YoY · Fresh capital in last 24 mo Funding: Raised $7.0M across 5 rounds · 5 rounds over 4 yrs (1.2/yr) rank vs industry peers · Fliar Intelligence Index 55/100 | $7M | 8 mo ago | Series A | 18 | — | WordPressMySQLPHP+20 | — | 2 expansions |
| 14 | Astrowatt Thin film C-Si solar technology developer | $7M | 153 mo ago | Deadpooled | — | Dharmesh Jawarani Co-Founder | — | 20 patents Advanced semiconductor device fabrication with metal‑semiconductor layers and separation/etch processes | — |
| 15 | Semtive Abc Wind turbine developer | $6M | 62 mo ago | Deadpooled | 7 | — | — | — | — |
| 16 | Atonometrics Solar measurement systems leader, enhancing PV performance with innovative sensors | $5M | 23 mo ago | Seed | 11 | William Stueve CEO & President | WordPressMySQLPHP+27 | 33 patents Detecting and quantifying solar panel soiling via optical and microscopic imaging. | — |
| 17 | ZTRIC Renewable energy solutions provider: solar installations, energy storage, and O&M services | $2M | 26 mo ago | Seed | — | Jayant Mhetar Co-Founder & CEO | WordPressMySQLPHP+23 | — | 6 job openings |
| 18 | Terra Pave International Eco-friendly pavement solutions for roadways, parking lots, and airfields | $2M | 148 mo ago | Seed | 17 | Yetkin Yildirim Co-Founder | — | — | — |
| 19 | Buckeye Brine Provider of waste management services for oil fields and waste water | $1M | 152 mo ago | Series A | — | Steven Mobley CEO & President | — | 11 patents Industrial brine and salt waste treatment and disposal systems | — |
| 20 | Water Provider of water management services | $1M | 23 mo ago | Seed | 16 | Jordan Kramer Co-Founder and Chief Commercial Officer | WordPressMySQLMariaDB+28 | 101 patents Advanced ion removal technologies for water purification and desalination | — |
| 21 | Concurrent Design Concurrent Design, Inc. - Engineering Design Services | $1M | 127 mo ago | Acquired | 20 | — | — | — | — |
| 22 | Antelope Water Management Provider of integrated water management services | $500K | 76 mo ago | Seed | 4 | — | — | — | — |
| 23 | EQO Provider of water management services | $325K | 43 mo ago | Seed | 5 | John Higley Founder | — | 3 patents Remote collection and analysis of genetic material from water bodies | — |
| 24 | Value Waste Services Provider of waste collection & disposal services | $265K | 100 mo ago | Acquired | 3 | John Claybrook Founder & CEO | — | — | — |
Top 12 Environment companies in Austin
#1
Acquired · Austin, Texas · founded 2021 · 20 employees$300Mraised▾
Developer of utility scale solar projects
- Aug 2025Conventional Debt$300M
#2
Series B · Austin, Texas · founded 2023 · 3 employees$33.3Mraised▾
Developer of nuclear energy projects
- Aug 2025Series B$100M
- Aug 2024Series A$27M
- 2023Seed$6.3M
#3
Funding Raised · Austin, Texas · founded 2010 · 44 employees$43.1Mraised▾
Provider of solar educational, training, and water management services
- May 2025Grant (prize money)$8M
- Feb 2011Grant (prize money)$24.7M
- Feb 2010Grant (prize money)$10.4M
#4
Series A · Austin, Texas · founded 2020 · 18 employees$7Mraised▾
Provider of water treatment services
- Oct 2025Series A$3M
- Aug 2024Series A$6.9M
- Nov 2023Seed$250K
- Sep 2023Seed$350K
#5
Series B · Austin, Texas · founded 2020 · 4 employees$30Mraised▾
Developer of renewable power generation and solar energy projects
- Dec 2024Conventional Debt$20M
- May 2023Series B$30M
#6
Public · Austin, Texas · founded 2017 · 221 employees$15Mraised▾
Developer of solar energy power projects
- Dec 2024Post IPO$15M
#7
Seed · Austin, Texas · founded 2007 · 11 employees$4.6Mraised▾
Solar measurement systems leader, enhancing PV performance with innovative sensors. The company specializes in designing and manufacturing advanced sensors for solar energy installations. Their products support a wide array of PV performance assessment and monitoring applications, including module power measurement, I-V data analysis, soiling detection, and irradiance monitoring. They offer solutions like in-situ I-V measurement devices, optical soiling sensors, PV reference cells, and meteorological sensors. These technologies cater to module power, irradiance, and soiling measurement needs, ensuring optimal performance and minimizing degradation. Their innovative and proprietary products are protected by multiple patents, reflecting their commitment to technological advancement in the solar energy sector. They provide critical tools for performance optimization and monitoring in solar energy applications.
- Jul 2024Grant (prize money)$199.7K
- Jun 2020Grant (prize money)$1.3M
- Jul 2019Grant (prize money)$1.3M
- Jan 2012Seed—
#8
Series C · Austin, Texas · founded 2016 · 45 employees$120Mraised▾
Developer of solar energy projects
- Feb 2023Series C$90M
- Jan 2022Series B$30M
#9
Acquired · Austin, Texas · founded 2004 · 79 employees$326Mraised▾
Manufactures microinverters. Company manufactures microinverter and monitoring solutions. company specializing in the development and manufacturing of microinverter solutions for photovoltaic (solar) panels. The company's mission is to facilitate the adoption of rooftop solar power by making solar systems simpler, more reliable, and more cost-effective.
- Mar 2014Series E$42M
- May 2012Series D$250M
- Feb 2012Grant (prize money)$1.1M
- Sep 2011Grant (prize money)—
#10
Seed · Austin, Texas · founded 2019 · 16 employees$1.2Mraised▾
Provider of water management services
- Jul 2024Conventional Debt$10M
- Mar 2023Seed$1.2M
#11
Seed · Austin, Texas · founded 2015$2Mraised▾
Renewable energy solutions provider: solar installations, energy storage, and O&M services. The company develops custom renewable energy solutions, offering end-to-end services encompassing hardware, installation, and customer support. Specializing in on-grid and off-grid solar facilities, they cater to industrial, commercial, and residential clients with rooftop/ground-mounted solutions. They provide tailored energy storage solutions for electric vehicles, off-grid installations, and UPS. Their dedicated maintenance team offers comprehensive operational and maintenance support for solar power plants through continuous monitoring and effective troubleshooting. They focus on clean energy access, cost reduction, and environmental stewardship. They offer remote monitoring, proactive service, and extended warranties. The company builds or buys renewable assets, solar and storage, that can generate or store clean electricity.
- Mar 2024Seed$6.1M
#12
Series B · Austin, Texas · founded 2008 · 16 employees$22.2Mraised▾
Developer of diversified oil and chemicals projects intended to serve the energy sector. The company is engaged in the development of projects that upgrade low-value feedstocks into premium fuels and chemicals and develop methanol projects using mature conversion technology that is performance-guaranteed, enabling clients to get clean, cost-effective and scaleable natural gas and gas-liquid.
- Apr 2018Series B$3M
- Oct 2014Series A$1.1M
- Nov 2013Series A$32.7K
- Oct 2013Series A$1.2M
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
What Austin researches in environmental monitoring
The University of Texas at Austin leads Austin's environmental monitoring research, focusing on air quality and biodiversity, with a predominantly optimistic tone toward recent breakthroughs.
- The University of Texas at Austin12