# Top 43 Energy Startups in Houston by Funding (2026)

> The 43 best-funded energy startups in Houston, ranked by total funding raised: $11B combined. With founding year, headquarters and each company's rounds.

Source: https://millionrounds.com/top-lists/energy-startups-houston (Millionrounds; every figure on the page links to its filing or article)

- 1 [**NextDecade** NextDecade is an LNG development company focusing on LNG export projects and associated pipelines.](https://millionrounds.com/company/nextdecade) NextDecade is an LNG development company focusing on LNG export projects and associated pipelines. *Founded* 2014 Houston, United States **$3.5B** last round Jun 2026
- 2 [**WaterBridge Resources** A midstream development company focused on developing, acquiring and operating flowback and produced water infrastructure](https://millionrounds.com/company/waterbridge-resources) A midstream development company focused on developing, acquiring and operating flowback and produced water infrastructure *Founded* 2015 Houston, United States **$1.4B** last round Sept 2025
- 3 [**Fervo Energy** Fervo Energy develops clean energy technology to generate carbon-free energy from geothermal systems.](https://millionrounds.com/company/fervo-energy) Fervo Energy develops clean energy technology to generate carbon-free energy from geothermal systems. *Founded* 2017 Houston, United States **$1.1B** last round Sept 2026
- 4 [**Alpha Generation** Alpha Generation manages and operates power generation facilities that are well positioned to provide reliable.](https://millionrounds.com/company/alpha-generation) Alpha Generation manages and operates power generation facilities that are well positioned to provide reliable. *Founded* 2016 Houston, United States **$750M** last round Oct 2025
- 5 [**Lancium Technologies** Lancium is a technology company using distributed parallel computing to enable the growth of renewable energy.](https://millionrounds.com/company/lancium-technologies) Lancium is a technology company using distributed parallel computing to enable the growth of renewable energy. *Founded* 2017 Houston, United States **$600M** last round Oct 2025
- 6 [**Prairie Operating** Prairie Operating Co.](https://millionrounds.com/company/prairie-operating) Prairie Operating Co. *Founded* - Houston, United States **$475M** last round Jun 2025
- 7 [**Broad Reach Power** Broad Reach Power is an independent power producer.](https://millionrounds.com/company/broad-reach-power) Broad Reach Power is an independent power producer. *Founded* 2019 Houston, United States **$435M** last round Jul 2023
- 8 [**HEQ Deepwater** HEQ Deepwater is an energy company that focused on the acquisition of the deepwater gulf.](https://millionrounds.com/company/heq-deepwater) HEQ Deepwater is an energy company that focused on the acquisition of the deepwater gulf. *Founded* 2021 Houston, United States **$400M** last round Aug 2021
- 9 [**Talos Energy** Talos Energy is a technically driven, independent oil and gas exploration and production company.](https://millionrounds.com/company/talos-energy) Talos Energy is a technically driven, independent oil and gas exploration and production company. *Founded* 2013 Houston, United States **$323M** last round Mar 2024
- 10 [**Cloverleaf Infrastructure** Cloverleaf Infrastructure develops clean-powered, ready-to-build sites for large electric customers.](https://millionrounds.com/company/cloverleaf-infrastructure) Cloverleaf Infrastructure develops clean-powered, ready-to-build sites for large electric customers. *Founded* - Houston, United States **$300M** last round Jul 2024
- 11 [**Terra Energy Partners** Terra is an independent U.S onshore oil and gas exploration and production company](https://millionrounds.com/company/terra-energy-partners) Terra is an independent U.S onshore oil and gas exploration and production company *Founded* 2015 Houston, United States **$300M** last round Jun 2025
- 12 [**WattBridge** WattBridge provides a single source solution for energy customers to safely and cost-effectively transition.](https://millionrounds.com/company/wattbridge) WattBridge provides a single source solution for energy customers to safely and cost-effectively transition. *Founded* 2019 Houston, United States **$265M** last round Jul 2022
- 13 [**Spruce Finance** Spruce Power owner and operator of distributed solar energy assets across the United States.](https://millionrounds.com/company/spruce-finance) Spruce Power owner and operator of distributed solar energy assets across the United States. *Founded* 2008 Houston, United States **$180M** last round May 2019
- 14 [**Quaise Energy** Quaise Energy is a technology company founded in 2018, originating from the MIT Plasma Science and Fusion Center.](https://millionrounds.com/company/quaise-energy) Quaise Energy is a technology company founded in 2018, originating from the MIT Plasma Science and Fusion Center. *Founded* 2018 Houston, United States **$180M** last round Sept 2026
- 15 [**Plus Power** Plus Power specializes in creating battery energy storage systems that enhance the efficiency and reliability of the electrical grid.](https://millionrounds.com/company/plus-power) Plus Power specializes in creating battery energy storage systems that enhance the efficiency and reliability of the electrical grid. *Founded* 2018 Houston, United States **$160M** last round Nov 2025
- 16 [**Laredo Energy** Laredo Energy is a privately held company.](https://millionrounds.com/company/laredo-energy) Laredo Energy is a privately held company. *Founded* 2001 Houston, United States **$130M** last round May 2014
- 17 [**Sunnova Energy** Sunnova Energy International Inc.](https://millionrounds.com/company/sunnova-energy) Sunnova Energy International Inc. *Founded* 2012 Houston, United States **$100M** last round Apr 2018
- 18 [**Crescent Pass Energy** Crescent Pass Energy is a privately held exploration and production company based in Houston, Texas, founded in 2018.](https://millionrounds.com/company/crescent-pass-energy) Crescent Pass Energy is a privately held exploration and production company based in Houston, Texas, founded in 2018. *Founded* 2018 Houston, United States **$75M** last round Jan 2019
- 19 [**GoExpedi** GoExpedi is a Houston-based industrial technology company that specializes in digital procurement for heavy industries.](https://millionrounds.com/company/goexpedi) GoExpedi is a Houston-based industrial technology company that specializes in digital procurement for heavy industries. *Founded* 2017 Houston, United States **$66M** last round Nov 2022
- 20 [**Primus Green Energy** Primus Green Energy is a developer of a proprietary process to produce gasoline and other fuels from biomass and/or natural gas.](https://millionrounds.com/company/primus-green-energy) Primus Green Energy is a developer of a proprietary process to produce gasoline and other fuels from biomass and/or natural gas. *Founded* 2001 Houston, United States **$59M** last round Jan 2013
- 21 [**Canyon Midstream Partners** Canyon Midstream Partners, LLC (CMP) is an independent midstream company](https://millionrounds.com/company/canyon-midstream-partners) Canyon Midstream Partners, LLC (CMP) is an independent midstream company *Founded* 2012 Houston, United States **$50M** last round Sept 2014
- 22 [**Velocys** Velocys is the company at the forefront of smaller scale gas-to-liquids (GTL).](https://millionrounds.com/company/velocys) Velocys is the company at the forefront of smaller scale gas-to-liquids (GTL). *Founded* 2001 Houston, United States **$40M** last round Feb 2024
- 23 [**Tachyus** Tachyus is a software development company that offers technology platform to optimize energy production for the oil and gas industry.](https://millionrounds.com/company/tachyus) Tachyus is a software development company that offers technology platform to optimize energy production for the oil and gas industry. *Founded* 2013 Houston, United States **$36M** last round Dec 2022
- 24 [**Innowatts** Innowatts is now a part of GridX.](https://millionrounds.com/company/innowatts) Innowatts is now a part of GridX. *Founded* 2014 Houston, United States **$18M** last round Sept 2023
- 25 [**Foro Energy** Foro Energy is a technology company based in Houston, Texas, founded in 2009.](https://millionrounds.com/company/foro-energy) Foro Energy is a technology company based in Houston, Texas, founded in 2009. *Founded* 2009 Houston, United States **$17M** last round Dec 2012
- 26 [**Helix Earth** Helix Earth Technologies, Inc.](https://millionrounds.com/company/helix-earth) Helix Earth Technologies, Inc. *Founded* 2022 Houston, United States **$12M** last round Mar 2026
- 27 [**Rebellion Photonics** Rebellion Photonics is a Houston-based technology company that specializes in intelligent, automated gas monitoring solutions.](https://millionrounds.com/company/rebellion-photonics) Rebellion Photonics is a Houston-based technology company that specializes in intelligent, automated gas monitoring solutions. *Founded* 2009 Houston, United States **$10M** last round Jan 2014
- 28 [**Quidnet Energy** Quidnet Energy is an energy storage company based in Houston, Texas, focused on developing Geomechanical Energy Storage (GES) technology.](https://millionrounds.com/company/quidnet-energy) Quidnet Energy is an energy storage company based in Houston, Texas, focused on developing Geomechanical Energy Storage (GES) technology. *Founded* 2013 Houston, United States **$10M** last round Nov 2022
- 29 [**Wellogix** Wellogix, an energy sourcing company based in Houston, focuses on business controls and compliance in improving critical business processes.](https://millionrounds.com/company/wellogix) Wellogix, an energy sourcing company based in Houston, focuses on business controls and compliance in improving critical business processes. *Founded* 1998 Houston, United States **$8.0M** last round Sept 2005
- 30 [**Citla Energy** Citla Energy is a Mexican independent exploration and production company established between 2014 and 2015.](https://millionrounds.com/company/citla-energy) Citla Energy is a Mexican independent exploration and production company established between 2014 and 2015. *Founded* 2014 Houston, United States **$7.5M** last round Jan 2018
- 31 [**Sourcewater** Sourcewater offers the largest online water source, reuse, and disposal database in the upstream energy industry.](https://millionrounds.com/company/sourcewater) Sourcewater offers the largest online water source, reuse, and disposal database in the upstream energy industry. *Founded* 2014 Houston, United States **$7.2M** last round Sept 2019
- 32 [**Envana Software Solutions** Envana Software Solutions provides digital greenhouse gas emissions management and carbon accounting software-as-a-service products.](https://millionrounds.com/company/envana-software-solutions) Envana Software Solutions provides digital greenhouse gas emissions management and carbon accounting software-as-a-service products. *Founded* 2023 Houston, United States **$5.2M** last round Jan 2025
- 33 [**Zeta Energy** Zeta Energy develop and commercialize safe rechargeable batteries that are higher performing, lower cost and sustainably manufactured.](https://millionrounds.com/company/zeta-energy) Zeta Energy develop and commercialize safe rechargeable batteries that are higher performing, lower cost and sustainably manufactured. *Founded* 2014 Houston, United States **$4.0M** last round Feb 2024
- 34 [**Viking Cold Solutions** Viking Cold Solutions provides energy management systems and thermal energy storage solutions to help companies achieve energy efficiency.](https://millionrounds.com/company/viking-cold-solutions) Viking Cold Solutions provides energy management systems and thermal energy storage solutions to help companies achieve energy efficiency. *Founded* 2007 Houston, United States **$3.6M** last round Mar 2013
- 35 [**Deepwater Corrosion Services** Deepwater protects offshore infrastructure from corrosion.](https://millionrounds.com/company/deepwater-corrosion-services) Deepwater protects offshore infrastructure from corrosion. *Founded* 1986 Houston, United States **$3.5M** last round Sept 2012
- 36 [**Giga Energy** Giga Energy is an American manufacturer and developer of energy infrastructure focused on powering artificial intelligence projects and flexible-load data cente](https://millionrounds.com/company/giga-energy) Giga Energy is an American manufacturer and developer of energy infrastructure focused on powering artificial intelligence projects and flexible-load data cente *Founded* 2019 Houston, United States **$2.3M** last round Mar 2022
- 37 [**Promethean Energy** Promethean Energy Corporation is a development and production company focused on maximizing value from oil and gas resources in the Gulf of Mexico.](https://millionrounds.com/company/promethean-energy) Promethean Energy Corporation is a development and production company focused on maximizing value from oil and gas resources in the Gulf of Mexico. *Founded* 2017 Houston, United States **$2.0M** last round May 2025
- 38 [**Almika** Almika is a Texas-based energy company dedicated to providing sustainable electricity solutions.](https://millionrounds.com/company/almika) Almika is a Texas-based energy company dedicated to providing sustainable electricity solutions. *Founded* 2019 Houston, United States **$1.0M** last round Jan 2022
- 39 [**PV Evolution Labs** PV Evolution Labs provides solar panel test and characterization services.](https://millionrounds.com/company/pv-evolution-labs) PV Evolution Labs provides solar panel test and characterization services. *Founded* 2009 Houston, United States **$235K** last round Jul 2012
- 40 [**Indigeo Virtus** Indigeo Virtus was founded to deliver products and services that support our customers' goals of achieving excellence.](https://millionrounds.com/company/indigeo-virtus) Indigeo Virtus was founded to deliver products and services that support our customers' goals of achieving excellence. *Founded* 2013 Houston, United States **$200K** last round Jan 2014
- 41 [**Revterra** Revterra is a Houston-based sustainable energy company founded in 2017.](https://millionrounds.com/company/revterra) Revterra is a Houston-based sustainable energy company founded in 2017. *Founded* 2017 Houston, United States **$20K** last round Oct 2022
- 42 [**REVOLUTION Turbine Technologies** Clean energy, waste energy recovery](https://millionrounds.com/company/revolution-turbine-technologies) Clean energy, waste energy recovery *Founded* 2015 Houston, United States **$8K** last round Apr 2022
- 43 [**Trackit Energy** Trackit Energy is a Software as a Service platform that was designed and developed for the Petrochemical and Mining industries.](https://millionrounds.com/company/trackit-energy) Trackit Energy is a Software as a Service platform that was designed and developed for the Petrochemical and Mining industries. *Founded* - Houston, United States **$5K** last round Sept 2022

**Total funding** how the list is ranked

**15 November 2026** updated nightly

**Rounds we track** source: Millionrounds

Companies whose funding rounds we classed in this sector, ranked by the total they have raised in rounds we hold. Nobody pays to be on a list.

## Who backed them?

Open any company for its rounds and investors, or search the investors who back energy startups in Houston in the app, with filters, lists and exports.

[Find their investors](https://millionrounds.com/login?join=1&next=/app/investors)[All top lists](https://millionrounds.com/top-lists)

## More energy lists

[See all](https://millionrounds.com/top-lists?t=Energy)

[*CE* *C* *SE* **Energy startups worldwide** 1,800 companies · $129B](https://millionrounds.com/top-lists/energy-startups)[*CE* *C* *SE* **Energy startups in the United States** 741 companies · $110B](https://millionrounds.com/top-lists/energy-startups-united-states)[*N* *V* *S* **Energy startups in Europe** 607 companies · $39B](https://millionrounds.com/top-lists/energy-startups-europe)[*C* *ME* *W* **Energy startups that raised in 2026** 429 companies · $73B in 2026](https://millionrounds.com/top-lists/energy-startups-raised-2026)[*S* *RS* *C* **Energy startups in the United Kingdom** 206 companies · $15B](https://millionrounds.com/top-lists/energy-startups-united-kingdom)[*C* *ME* *W* **Energy startups in the United States that raised in 2026** 194 companies · $63B in 2026](https://millionrounds.com/top-lists/energy-startups-united-states-raised-2026)[*AE* *TE* *RS* **Energy startups founded in 2021** 111 companies · $8.5B](https://millionrounds.com/top-lists/energy-startups-founded-2021)[*V* *UC* *E* **Energy startups founded in 2020** 105 companies · $15B](https://millionrounds.com/top-lists/energy-startups-founded-2020)

## More lists for Houston

[See all](https://millionrounds.com/top-lists?r=Houston)

[*N* *SE* *WR* **Startups in Houston** 273 companies · $20B](https://millionrounds.com/top-lists/startups-houston)[*A* *OH* *I* **Healthcare startups in Houston** 29 companies · $402M](https://millionrounds.com/top-lists/healthcare-startups-houston)[*A* *I* *OB* **Biotech startups in Houston** 25 companies · $436M](https://millionrounds.com/top-lists/biotech-startups-houston)[*C* *AC* *ZC* **AI startups in Houston** 23 companies · $447M](https://millionrounds.com/top-lists/ai-startups-houston)[*BS* *IR* *AH* **IT Services startups in Houston** 16 companies · $886M](https://millionrounds.com/top-lists/it-services-startups-houston)[*G* *T* *I* **Big Data & Analytics startups in Houston** 14 companies · $167M](https://millionrounds.com/top-lists/big-data-startups-houston)[*FE* *RP* *1* **Climate Tech startups in Houston** 11 companies · $2.9B](https://millionrounds.com/top-lists/climate-startups-houston)