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7 innovative startups fueling the energy transition in Houston

Meet the Innovators

Houston-based Solidec was founded around innovations developed by Rice University associate professor Haotian Wang (far left). Photo courtesy Greentown Labs.

Houston has long been touted as the energy capital of the world, and it's now it's also a leading player in the energy transition — home to numerous startups and innovators working toward a cleaner future.

As part of the 2025 Houston Innovation Awards, presented by InnovationMap, the Energy Transition Business category honors innovative startups that are providing solution within renewables, climatetech, clean energy, alternative materials, circular economy, and more.

Seven energy transition companies have been named finalists for the 2025 award. They range from a spinoff stimulating subsurface hydrogen from end-of-life oil fields to a company converting prickly pear cactus biogas into energy.

Read more about these climatetech businesses, their founders, and their green initiatives below. Then join us at the Houston Innovation Awards on Nov. 13 at Greentown Labs, when the winner will be unveiled at our live awards ceremony.

Tickets are now on sale.

Anning Corporation

Clean energy company Anning Corporation is working to develop geologic hydrogen, a natural carbon-free fuel, using its proprietary stimulation approaches and advanced exploration modeling. The company said that geologic hydrogen has the potential to be the lowest-cost source of reliable baseload electricity in the U.S.

The company was founded by CEO Sophie Broun in 2024 and is a member of Greentown Labs. Last month, it also announced that it was chosen to participate in Breakthrough Energy’s prestigious Fellows Program. Anning raised a pre-seed round this year and is currently raising a $6 million seed round.

Capwell Services

Houston-based methane capture company Capwell Services works to eliminate vented oil and gas emissions economically for operators. According to the company, methane emissions are vented from most oil and gas facilities due to safety protocols, and operators are not able to capture the gas cost-effectively, leading operators to emit more than 14 million metric tons of methane per year in the U.S. and Canada. Founded in 2022, Capwell specializes in low and intermittent flow vents for methane capture.

The company began as a University of Pennsylvania senior design project led by current CEO Andrew Lane. It has since participated in programs with Greentown Labs and Rice Clean Energy Accelerator. The company moved to Houston in 2023 and raised a pre-seed round. It has also received federal funding from the DOE. Capwell is currently piloting its commercial unit with oil and gas operators.

Deep Anchor Solutions

Offshore energy consulting and design company Deep Anchor Solutions aims to help expedite the adoption of floating offshore energy infrastructure with its deeply embedded ring anchor (DERA) technology. According to the company, its patented DERA system can be installed quietly without heavy-lift vessels, reducing anchor-related costs by up to 75 percent and lifecycle CO2 emissions by up to 80 percent.

The company was founded in 2023 by current CEO Junho Lee and CTO Charles Aubeny. Lee earned his Ph.D. in geotechnical engineering from Texas A&M University, where Aubeny is a professor of civil and environmental engineering. The company has participated in numerous accelerators and incubators, including Greentown Labs, MassChallenge, EnergyTech Nexus LiftOff, and others. Lee is an Activate 2025 fellow.

Eclipse Energy

Previously known as Gold H2, Eclipse Energy converts end-of-life oil fields into low-cost, sustainable hydrogen sources. It completed its first field trial this summer, which demonstrated subsurface bio-stimulated hydrogen production. According to the company, its technology could yield up to 250 billion kilograms of low-carbon hydrogen, which is estimated to provide enough clean power to Los Angeles for over 50 years and avoid roughly 1 billion metric tons of CO2 equivalent.

Eclipse was founded in 2022 by Moji Karimi (CEO and chairman of Cemvita), Prabhdeep Sekhon (CEO of Eclipse), Tara Karimi and Rayyan Islam. The company closed an $8 million series A this year and has plans to raise another round in 2026.

Loop Bioproducts

Agricultural chemical manufacturing company Loop Bioproducts leverages the physiology of prickly pear cactus grown in Texas to produce bioenergy, food, and remediate industrial wastewater streams. The company uses its remote sensing technology, proprietary image-based machine learning model, and R&D innovation to capture raw biogas from the cactuses and is focused on scaling cactuses as an industrial crop on land.

Rhiannon Parker founded Loop Bioproducts in 2023.

Mars Materials

Clean chemical manufacturing business Mars Materials is working to convert captured carbon into resources, such as carbon fiber and wastewater treatment chemicals. The company develops and produces its drop-in chemical products in Houston and uses an in-licensed process for the National Renewable Energy Lab to produce acrylonitrile, which is used to produce plastics, synthetic fibers, and rubbers. The company reports that it plans to open its first commercial plant in the next 18 months.

Founded in 2019 by CEO Aaron Fitzgerald, CTO Kristian Gubsch, and lead engineer Trey Sheridan, the company has raised just under $1 million in capital and is backed by Bill Gates’ Breakthrough Energy, Shell, Black & Veatch, and other organizations.

Solidec

Chemical manufacturing company Solidec has developed autonomous generators that extract molecules from water and air and converts them into pure chemicals and fuels that are free of carbon emissions onsite, eliminating the need for transport, storage, and permitting. The company was founded around innovations developed by Rice University associate professor Haotian Wang.

The company was selected for the Chevron Technology Ventures’ catalyst program, Greentown Labs, NSF I-Corps and was part of the first cohort of the Activate Houston program. It won first place at the 2024 startup pitch competition at CERAWeek. Solidec was founded in 2023 by Wang, who serves as chief scientist, CEO Ryan DuChanois, and CTO Yang Xia. It closed a $2.5 million seed round earlier this year.

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The Houston Innovation Awards program is sponsored by Houston City College Northwest, Houston Powder Coaters, FLIGHT by Yuengling, and more to be announced soon. For sponsorship opportunities, please contact sales@innovationmap.com.

From Your Site Articles
Meet the newest additions to Greentown Houston. Photo via Greentown Houston

11 clean energy-focused startups join Greentown Houston

ready to grow

There are some new faces at Houston's Greentown Labs location.

The climatetech incubator announced 22 new startup members between its two locations in Boston and Houston joining the facilities this quarter, and 11 have a local presence. Here are the new Houston additions, according to Greentown Labs:

  • A digital tech company, eVillage.io’s software manages the lifecycle of a clean energy project from the very beginning.
  • With its power-to-heat and power-to-power solutions, NOC Energy is focused on decarbonizing industrial heat to reduce emissions and cost.
  • AI company Pix Force uses computer vision, using machine learning, and deep learning techniques to automate the inspection of assets more safely, remotely, and efficiently.
  • Ardent is a process technology company that is developing membrane-based solutions for point-source carbon capture and other chemical separations. The startup is participating in Year 4 of the Carbon to Value Initiative.
  • Also a C2V Initiative Year 4 cohort member, CarbonBlue develops a chemical process that mineralizes and extracts CO2 from water, which then reabsorbs more atmospheric CO2.
  • Maple Materials develops an electrolysis process to convert CO2 into graphite and oxygen. The startup is a Greentown Go alum that’s returning for Year 4 of the C2V Initiative.
  • A C2V Initiative cohort member, Secant Fuel develops a one-step electrocatalytic process that converts flue gas into syngas.
  • Deep Anchor Solutions accelerates renewable energy project adoption, especially in floating offshore wind and other offshore sectors, with its innovative deeply embedded ring anchor.
  • Thiozen’s proprietary chemical waste-to-hydrogen cycle removes hydrogen sulfide from gas streams and generates zero-emission hydrogen.
  • TS-Nano is an energy technology company focused on reducing methane emissions from abandoned wellbores using its patented sealants, monitoring technologies, and blockchain carbon offsets—enabling its partners to achieve their ESG and decarbonization goals.
  • Seabound builds carbon-capture equipment for new and existing ships. The startup is participating in Year 4 of the C2V Initiative.
Next month, 96 startups will pitch at an annual event focused on the future of energy. Here's who will be there. Photo via rice.edu

Exclusive: Rice Alliance announces participants ahead of 20th annual energy symposium

where to be

Dozens of companies will be a part of an upcoming energy-focused conference at Rice University — from climate tech startups to must-see keynote speakers.

The 20th Annual Rice Alliance Energy Tech Venture Forum will take place on September 21 at Rice University’s Jones Graduate School of Business. Anyone who's interested in learning more about the major players in the low-carbon future in Houston and beyond should join the industry leaders, investors, and promising energy and cleantech startups in attendance.

This year's keynote speakers include Christina Karapataki, partner at Breakthrough Energy Ventures, the venture capital fund backed by Bill Gates; Scott Nyquist, vice chairman at Houston Energy Transition Initiative, founded by the Greater Houston Partnership; and Jeff Tillery, COO at Veriten.

Nearly 100 startups will also be pitching throughout the day, and at the end of the program, the most-promising companies — according to investors — will be revealed. See below for the 2023 selection of companies.

Presenting companies:

  • Element Resources
  • Eugenie AI
  • Flash H2 Synthesis from Waste Plastic at Zero Net Cost
  • Fluid Efficiency
  • Galatea Technologies
  • Heimdal
  • Impact Technology SystemsAS
  • INGU
  • Lithos
  • Luminescent
  • Mantel
  • Mars Materials
  • Microgrid Labs
  • Mirico
  • Mobilus Labs
  • Muon Vision
  • Nano Nuclear
  • NobleAI
  • Numat
  • Ourobio
  • Planckton Data Technologies
  • Polystyvert
  • Princeton NuEnergy
  • Protein Evolution
  • Qult Technologies
  • Sage Geosystems
  • Salient Predictions
  • Sawback Technologies
  • SHORELINE AI
  • Solidec
  • Spectral Sensor Solutions
  • Teren
  • Terradote
  • TexPower
  • Thiozen
  • Technology from the Lab of Dr. James Tour
  • Volexion
  • Xecta

CEA Demo Day:

  • Ayrton Energy
  • Carbix
  • CryoDesalination
  • Digital Carbon Bank
  • EarthEn
  • H Quest Vanguard
  • Highwood Emissions Management
  • Icarus RT
  • Khepra
  • Natrion
  • Oceanways
  • Relyion Energy
  • Triton Anchor
  • TROES

Office hours only:

  • 1s1 Energy
  • AKOS Energy
  • Aperta Systems
  • Atargis Energy
  • Ayas
  • C-Power
  • C-Quester
  • Carbon Loop
  • Deep Anchor Solutions
  • DG Matrix
  • Drishya AI Labs
  • Earthbound.ai
  • EarthBridge Energy
  • Enoverra
  • equipcast
  • ezNG Solutions
  • Feelit Technologies
  • FluxWorks
  • Forge
  • Horne Technologies
  • Imperium Technologies
  • LiCAP Technologies
  • Make My Day
  • Moblyze
  • MyPass Global
  • NovaSpark Energy
  • Octet Scientific
  • Perceptive Sensor Technologies
  • PetroBricks
  • Piersica
  • Poseidon Minerals
  • Predyct
  • RIvotto
  • Roboze
  • Talisea
  • ThermoLift Solutions
  • Trout Software
  • Tuebor Energy
  • Undesert Corporation
  • Viridos
  • Vroom Solar
  • Well Information Technologies
  • WellWorth
  • Zsense Systems
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Houston cleantech startup seeks $200M for superhot geothermal plant

seeing green

Houston-based Quaise Energy is looking to raise $200 million to support the development of a 50-megawatt superhot geothermal plant in Oregon.

The company is seeking $100 million in Series B funding, plus an additional $100 million from grants, debt and project-level finance, a representative from the company tells Energy Capital. Axios first reported the news late last month.

Quaise specializes in terawatt-scale geothermal power. It is known for its millimeter-wave drilling technology, which was developed at MIT.

The company's Project Obsidian development in central Oregon will combine conventional drilling with its millimeter-wave technology. Quaise says the project, targeted to come online in 2030, could be the first commercial plant to operate in superhot rock, a more efficient and abundant resource, but one that requires more advanced and durable drilling technology.

Quaise says Obsidian would initially generate 50 megawatts of "always-on" power and would be designed to add 200 megawatts as additional wells are developed. A power-purchase deal has already been signed for the initial 50 megawatts with an undisclosed customer.

A representative from the company says Quaise would also use the funding to continue advancing its millimeter-wave technology and prepare it for commercialization.

Last year, the company drilled to a depth of about 330 feet using its millimeter-wave technology at its field site in Central Texas.

“Our progress this year has exceeded all expectations,” Carlos Araque, CEO and president of Quaise Energy, said at the time. “We’re drilling faster and deeper at this point than anyone believed possible, proving that millimeter-wave technology is the only tool capable of reaching the superhot rock needed for next-generation geothermal power. We are opening up a path to a new energy frontier.”

Canary Media reports that Quaise plans to drill to nearly 3,300 feet later this year and to deploy its millimeter-wave technology at its power plant in 2027.

Quaise raised $21 million in a Series A1 financing round in 2024 and a $52 million Series A in 2022. Major investors include Prelude Ventures, Safar Partners, Mitsubishi Corporation, Nabors Industries, TechEnergy and others.

Quaise was one of eight Houston-area companies to appear on Time magazine and Statista’s list of America’s Top GreenTech Companies of 2025.

Houston positioned to lead in Carbon Capture Utilization (CCU), study shows

The View From HETI

With global demand for energy production while lowering emissions continues to grow, Houston and the Gulf Coast region are uniquely positioned to lead with carbon capture, utilization and sequestration (CCUS). A new study developed by the Houston Energy Transition Initiative (HETI) in collaboration with Deloitte Consulting explores how the region can transform captured CO₂ into valuable products while supporting continued economic growth and industrial competitiveness.

Key takeaways from the report include:

Houston and the Gulf Coast are uniquely advantaged to utilize and store carbon.As a global hub for chemicals and refining industries, Houston has access to world-class infrastructure, a skilled workforce, and access to global markets. The region also has one of the nation’s highest concentrations of industrial CO2 and creates the opportunity to capture waste material streams to deliver lower carbon intensity products that continue to deliver economic benefits to the region.

While carbon capture and sequestration (CCS) projects continue to advance, CCU requires coordinated action across policy, infrastructure, technology and market demand to scale successfully. Utilization and sequestration are complementary strategies that support and protect investment deployments. CCS acts as an early foundation while markets and infrastructure evolve toward broader CO₂ utilization, and CCU is essential to developing low-carbon-intensity value chains and products.

“Our collaboration with Deloitte highlights how Houston and the Gulf Coast continue to build on the strengths that have long made our region an energy leader. Houston’s infrastructure, workforce, and industrial ecosystem uniquely position the region to scale CCU,” said Jane Stricker, Senior Vice President, Energy Transition, and Executive Director of HETI. “With supportive policy, continued innovation, and strong industry partnerships, we can accelerate CCU deployment, create new low-carbon value chains, and ensure Houston remains at the forefront of the global energy transition.”

Download the full report here.

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This article originally appeared on the Greater Houston Partnership's Houston Energy Transition Initiative blog. HETI exists to support Houston's future as an energy leader. For more information about the Houston Energy Transition Initiative, EnergyCapitalHTX's presenting sponsor, visit htxenergytransition.org.

Houston startup raises $6M to grow AI platform for solar, battery contractors

fresh funding

Houston tech startup Artemis has raised $6 million from 10 investors. The company offers an AI-supported platform that enables solar, battery storage and home improvement contractors to design, sell and finance energy projects.

Long Journey and Copec WIND Ventures co-led the round, with participation from angel investor Scott Banister, Coalition Operators, FJ Labs, Ludlow Ventures, Palm Tree Crew, Plug and Play Ventures, Shrug Capital and Tribeca Ventures.

To help propel growth, the company secured $10 million in financing last year (under its previous name, Monalee) from venture debt and growth credit provider Applied Real Intelligence. As Monalee, the company raised $16 million in venture capital.

The company was founded in 2022 as an installer of solar and battery storage projects. Five years later, the startup used in-house technology to establish its standalone software platform as it began pivoting away from installation. The company recently adopted the Artemis brand name.

Artemis says its platform saves time and money for installers of residential solar, battery storage, and energy projects. The platform combines an AI-powered design tool with embedded financing capabilities and compliance automation to create a single operating system.

The company says its customers report as much as a 72 percent reduction in software costs and up to 98 percent faster turnaround times. Thus far, more than 100 installers are using Artemis’ technology.

“Installers shouldn’t need six tools and a week of back-and-forth to sell a project," Walid Halty, co-founder and CEO of Artemis, said in a press release. “This funding gives us the fuel to scale our mission to compress design, financing, and compliance into a single flow so every installer can operate like a modern energy company. We’re not just speeding up deals, we're modernizing how distributed energy gets built.”

The Artemis platform, now available in the U.S. and soon to be launched in Latin America, caters to home improvement contractors, solar companies, lenders, and utilities.

“Artemis is transforming the complexity of distributed energy into elegant simplicity," added Arielle Zuckerberg, general partner at Long Journey.

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