Best Renewable Energy Tech Companies in Texas, United States
The 64 best Renewable Energy Tech companies in Texas, United States in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: Diamond Green Diesel.
Ranked: Best Renewable Energy Tech companies in Texas
| # | Company | Disclosed funding | Last round | Employees | Founded | Founder | Tech stack | Patents & IP focus | Recent signals |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Diamond Green Diesel Renewable diesel producer creating low-carbon fuel from recycled materials | $400M | 62 mo ago | 9 | 2009 | — | DrupalMariaDBPHP+12 | — | — |
| 2 | HelioVolt Manufacturer of solar panels | $257M | 154 mo ago | 102 | 2001 | B Stanbery Founder | — | 82 patents Advanced CIGS solar cell absorber materials and thin‑film deposition processes | — |
| 3 | 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%) | 2014 | Prashant Gupta Co-Founder | WordPressApple iCloud MailGoogle Workspace+27 | 173 patents Flexible datacenter power management and behind‑meter EV charging using renewable energy | — |
| 4 | 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 | 5 mo ago | 9 | 2020 | Cindy Taff Chief Executive Officer | WebflowGSAPSwiper+9 | 72 patents Subsurface geothermal and geopressured energy extraction with integrated thermal‑fluid storage systems | 1 internship · 1 partnership |
| 5 | MTPV Manufacturer of photovoltaic cells based on micron-gap thermophotovoltaics technology | $45M | 92 mo ago | 17 | 2003 | — | — | 8 patents Micro-gap thermophotovoltaic systems for high-efficiency thermal‑to‑electric conversion | — |
| 6 | Yotta Energy Provider of solar energy storage systems | $32M | 33 mo ago | 42 | 2017 | — | — | — | — |
| 7 | Quidnet Energy Provider of pumped hydro based energy storage system | $29M | 16 mo ago | 8 | 2015 | Joe Zhou CEO | WordPressMySQLPHP+19 | 75 patents Underground hydraulic fracturing for fluid energy storage and geothermal power generation | — |
| 8 | Cleartrace Cloud-based platform to track and manage carbon footprint | $26M | 47 mo ago | 41 | 2017 | John Redpath Co-Founder | WordPressApple iCloud MailGoogle Workspace+27 | — | — |
| 9 | SustainX Grid-level compressed air energy storage system developer | $24M | 180 mo ago | 7 | 2007 | — | — | 80 patents Patents concentrated in mechanical & energy engineering | — |
| 10 | Active Power Manufacturer of flywheel uninterruptible power supply systems and power technologies | $23M | 148 mo ago | 80 | 1992 | — | WordPressMySQLPHP+16 | 94 patents Integrated motor‑generator flywheel UPS systems with magnetic thrust reduction and fluid control | — |
| 11 | Quantum Materials Corp Manufacturer of luminescent semiconductor nanocrystals | $18M | 64 mo ago | 31 | 2007 | — | — | — | — |
| 12 | PANASOL Manufacturer of solar panels | $13M | 38 mo ago | — | 2022 | Ricardo Jimenez Chairman & Founder | — | — | — |
| 13 | Daylight Made with love Provider of energy monitoring and energy efficient products | $9M | 7 mo ago | — | 2020 | Udit Patel Co-Founder / CTO | Node.jsTailwind CSSReact+16 | — | — |
| 14 | Renu Robotics Provider of a solar panel management robot system | $7M | 54 mo ago | 68 | 2018 | Tim Matus Founder & CEO | WordPressMySQLPHP+17 | 19 patents Autonomous ground‑robot navigation, perception, and infrastructure for vehicle charging and maintenance. | — |
| 15 | Solar Power Technologies Provides power optimization and monitoring solutions | $6M | 185 mo ago | — | 2009 | Jeff Williams Founder | — | 230 patents High‑efficiency multijunction photovoltaic cells with advanced surface passivation and low‑temp contacts | — |
| 16 | Revterra Developer of flywheel energy storage systems for grid applications | $6M | 30 mo ago | 6 | 2018 | Ben Jawdat Founder & CEO | WebflowCloudflare TurnstilereCAPTCHA+12 | 18 patents High‑speed flywheel energy storage and bearing systems for rapid EV charging | — |
| 17 | Pellucere Technologies Provider of materials that can be used as a coating on solar PV modules | $4M | 64 mo ago | 8 | 2006 | Chih-hung Chang Founder | WordPress Block EditorElementorWordPress+21 | — | — |
| 18 | Bodhi Provider of cloud-based sales and design management software for solar business | $4M | 52 mo ago | 8 | 2018 | — | WebflowPlyrHubSpot+17 | 40 patents Patents concentrated in transport & manufacturing processes | — |
| 19 | Transect Provider of software for environmental risk and renewable site assessment | $2M | 66 mo ago | 23 23 → 50 (+117%) | 2002 | Robin Laine Co-Founder & Chief Executive Officer | HubSpot CMS HubApple iCloud MailGoogle Workspace+32 | — | 1 launch |
| 20 | Dash Energy Dash Energy is a company that provides an easy way to switch to renewable energy. | $1M | 68 mo ago | 12 | 2019 | — | — | — | — |
| 21 | EnergyFunders Crowdfunding platform for oil and gas projects | $1M | 86 mo ago | 10 | 2013 | — | Node.jsReactstyled-components+21 | — | — |
| 22 | Curb Energy monitoring solutions provider | $1M | 128 mo ago | 16 | 2012 | — | — | 19 patents Patents concentrated in electrical & electronics | — |
| 23 | TerraStor Developer of grid-scale, long-duration energy storage systems using compressed air | $1M | 30 mo ago | 4 | 2021 | Fred Reed Co-Founder & CCO | — | — | — |
| 24 | Buffalo Wind Energy Provider of project management for wind energy solutions | $1M | 176 mo ago | — | — | — | — | — | — |
| 25 | LOKL Wind Developer of vertical axis wind turbines | $500K | 25 mo ago | — | 2023 | Louis-Philippe Lalonde CEO | — | — | — |
| 26 | Algae Farm Developer of algae-based biomass production solutions | $431K | 168 mo ago | — | 2009 | Rick Berman Founder & CEO | — | — | — |
| 27 | Keto AI enabled solar-charging skimmer solutions provider | $360K | 78 mo ago | 7 | 2017 | Jeff Jensen CEO and Cofounder | — | 6 patents Automated pool water management and monitoring systems for skimming, level, and pressure control. | — |
| 28 | NXTClean Fuels Oil production from recycled organic materials | $210K | 5 mo ago | 5 | 2016 | Christopher Efird Founder & CEO | WordPressMySQLPHP+21 | — | — |
Top 12 Renewable Energy Tech companies in Texas
#1
Series B · Bellaire, Texas · founded 2020 · 9 employees$56.8Mraised▾
Developer of geo-thermal energy projects
- Jan 2026Series B$97M
- Dec 2023Series A$44.8M
- Jun 2021Series A$12M
#2
Series D · The Woodlands, Texas · founded 2014 · 80 employees$150Mraised▾
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.
- Oct 2025Conventional Debt$600M
- Nov 2024PE$500M
- Nov 2021Series D$150M
- Jul 2018Conventional Debt—
#3
Series B · Austin, Texas · founded 2020$9Mraised▾
Provider of energy monitoring and energy efficient products. It provides an end to end ecosystem that enables to access the full amount of savings from energy resources and monitor energy consumption. It also provides products such as HVAC systems, heat pump water heater, solar and storage, and more. Its mobile app is available for both the iOS and Android platform.
- Nov 2025Series B$15M
- Jul 2024Series A$9M
- 2021Seed—
#4
Series C · Houston, Texas · founded 2015 · 8 employees$29Mraised▾
Provider of pumped hydro based energy storage system. It is developing a grid scale energy storage system by pumping in water in depleted oil wells. The water injection is done under high pressure to pressurize the stone bed which in turn later would be released to run turbines by ejecting the water from the well. As the rock is compressed, the energy is stored. Opening the well allows the pressurized water to be released to spin a turbine to create energy.
- Feb 2025Grant (prize money)$1.2M
- May 2024Series C$10M
- Nov 2022Grant (prize money)$10M
- Jun 2020Series B$10M
#5
Seed · Houston, Texas · founded 2016 · 5 employees$210Kraised▾
Oil production from recycled organic materials. It provides solution to turn used cooking oil, into an advanced biofuel.
- Dec 2025Seed$499K
- Feb 2024Seed$110K
- Dec 2023Seed$100K
#6
Series B · Austin, Texas · founded 2017 · 42 employees$32.3Mraised▾
Provider of solar energy storage systems. It offers a panel-level storage system called SolarLEAF that is connected with a wireless mesh transceiver. Also, offers a software solution that allows remote monitoring and control of the SolarLEAF system.
- Sep 2023Series B$8M
- Nov 2022Series A—
- Aug 2022Grant (prize money)$1.2M
- Apr 2022Series A$3.5M
#7
Funding Raised · San Antonio, Texas · founded 2009 · 9 employees$400.4Mraised▾
Renewable diesel producer creating low-carbon fuel from recycled materials, focused on producing clean-burning renewable diesel. They process recycled animal fats, used cooking oil, and inedible corn oil into renewable diesel fuel, meeting stringent low-carbon fuel standards. This dynamic partnership utilizes an integrated supply chain, combining feedstock with production and marketing logistics. They are committed to environmental leadership, reducing greenhouse gas emissions and selling renewable fuel to comply with low-carbon fuel requirements. They convert rendered and recycled materials into renewable diesel, contributing to a low-carbon world. They are a renewable energy company, focused on sustainability and green energy.
- Mar 2021Conventional Debt$400M
- Sep 2013Grant (prize money)$427.8K
#8
Series C · Austin, Texas · founded 2001 · 102 employees$256.7Mraised▾
Manufacturer of solar panels. It designs and develops thin film monolithic solar modules. These glass laminated modules are compatible with existing industry installation tools and practices.
- Aug 2013Series C$19M
- Dec 2012Series C$12.2M
- Sep 2011Series C$85M
- Jan 2011Conventional Debt$8.5M
#9
Series A · Houston, Texas · founded 2018 · 6 employees$6Mraised▾
Developer of flywheel energy storage systems for grid applications. It offers grid and utility-scale applications such as solar energy and wind energy. It offers a patented technology that uses passive magnetic bearing that consumes low power at very high speeds.
- Dec 2023Grant (prize money)$1M
- Jul 2022Series A$6M
- Mar 2020Grant (prize money)$223.5K
- Mar 2020Grant (prize money)$223.5K
#10
Series B · College Station, Texas · founded 2022$13.2Mraised▾
Manufacturer of solar panels. It offers solar panels for off-grid independent power generation in local communities, commerce, and industry.
- Apr 2023Series B$13.2M
#11
Series B · Austin, Texas · founded 2017 · 41 employees$25.7Mraised▾
Cloud-based platform to track and manage carbon footprint. It offers climate accounting as a service platform to process audit trail across the energy supply chain enabling a truly digital and connected means of reporting, auditing, compliance, and more
- Jun 2022Series B$20M
- Dec 2020Series A$4M
- Jun 2018Series A—
- Seed—
#12
Deadpooled · Austin, Texas · founded 2003 · 17 employees$45.2Mraised▾
Manufacturer of photovoltaic cells based on micron-gap thermophotovoltaics technology. It converts waste heat into electricity in a high-temperature environment. It also provides a platform manager software that track, monitor, and manage all components of the systems. It has applications in the glass, oil, gas, cement, steel, chemicals, and thermal oxidizer industries.
- Oct 2018Series C$17.9M
- Feb 2017Grant (prize money)$150K
- Dec 2016Series B$5M
- Oct 2016Grant (prize money)—
Funding & investor landscape
Notable founders
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
How research on Green Hydrogen in Texas is moving
A read on the academic research around Green Hydrogen in Texas — which themes are gaining ground, the institutions and researchers driving them, and how the tone is shifting. Based on 191 papers.
- Texas A&M University64
- The University of Texas at Austin40
- Texas Tech University31
- Texas A&M University at Qatar29
- The University of Texas at El Paso9
- Hydrogen production5→16
- Catalysis2→12
- Photocatalysis1→9
- Methane1→6
- Ammonia2→4
- Hydrogen production6→35
- Renewable energy2→9
- Methane3→10
- Electrolysis1→7
- Natural gas2→7
- Hydrogen production2→10
- Production (economics)1→6
Common questions
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.