Houston hub for clean energy startups names global founding partners

green team

EnergyTech Nexus has named 19 companies as Global Founding Partners. Photo via Unsplash.

EnergyTech Nexus, a Houston-based hub for clean energy startups, announced its coalition of Global Founding Partners last month at its Pilotathon event during Houston Energy and Climate Week.

The group of international companies will contribute financial and technical resources, as well as share their expertise with startup founders, according to a news release from EnergyTech Nexus.

“Our Global Founding Partners represent the highest standards of industrial leadership, technical expertise and commitment to innovation,” Juliana Garaizar, co-founding partner of EnergyTech Nexus, added in the release. “Their collaboration enables us to connect groundbreaking technologies with the resources, infrastructure, and markets needed to achieve global scale.”

Houston-based partners include:

Cemvita Inc.
Chevron Technology Ventures
Collide
Greentown Labs
Kauel
Oxy Technology Ventures
Revterra
Sunipro

“At Collide, we believe progress happens when the right people, data, and ideas come together. Partnering with EnergyTech Nexus allows us to support innovators with the insights and community they need to accelerate deployment at scale,” Collin McLelland, co-founder and CEO of Collide, a provider of generative artificial intelligence for the energy sector, said in the release.

"Revterra is thrilled to be a founding member of the EnergyTech Nexus community," Ben Jawdat, founder and CEO of kinetic battery technology company Revterra, added. "Building a strong network of collaborators, customers, and investors is critical for any startup — particularly when you're building novel hardware. The Energytech Nexus community has been incredible at bringing all of the right stakeholders together."

Other partners, many of which have a strong presence in Houston, include:

BBVA
EarthX
Endress+Hauser
Goodwin
Greenbackers Investment Capital
ISR Energy
Latham & Watkins LLP
Ormazabal
Repsol
STX Next
XGS Energy

Jason Ethier, co-founding partner of EnergyTech Nexus, said that partnerships with these companies will be "pivotal" in supporting the organization's community of founders and Houston's broader energy transition sector.

“The Energy and Climate industry deploys over $1.5 trillion in capital every year to meet our growing energy demands. Our global founding partners recognize that this energy must be delivered reliably, cost effectively, and sustainably, and have committed to ensuring that technology developed without our ecosystem can find a path to market through testing and piloting in real-world conditions," Ethier said. "The ecosystem they support here solidifies Houston as the global nexus for the energy transition.”

EnergyTech Nexus also recently announced a "strategic ecosystem partnership" with Greentown Labs, aimed at accelerating growth for clean energy startups. Read more here.

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Cemvita has named a new leader in Brazil. Photo via cemvita.com

Cemvita expands in Brazil with acquisition, new leader

going global

Houston industrial biotech company Cemvita has announced two strategic moves to advance its operations in Brazil.

The company, which utilizes synthetic biology to transform carbon emissions into valuable bio-based chemicals, acquired a complementary technology that expands its IP and execution of scale-up capacity, according to a news release. The acquisition will bring additional synthetic biology toolsets that Cemvita believes will assist with compressing and commercializing timelines.

The company also appointed Luciano Zamberlan as vice president of operations based in Brazil.

Zamberlan will lead operational execution, site readiness and early commissioning activities in Brazil. He brings more than 20 years of experience in biotechnology to the role. He recently served as director of engineering at Raízen, Brazil’s largest ethanol producer and the world’s largest producer of sugarcane ethanol. At Raízen, he coordinated the implementation of four greenfield plants and oversaw operational teams and process optimization for second-generation ethanol (E2G) and biogas.

“I am very pleased to join Cemvita, a company at the forefront of transforming waste into valuable, sustainable resources,” Zamberlan said in the release. “My expertise in scaling-up innovation, coupled with my experience in structuring and commissioning greenfield industrial operations, is perfectly aligned with Cemvita's mission and I'm eager to bring my energy and drive to accelerate Cemvita's industrial performance and contribute for a circular future.”

Cemvita expanded to Brazil in January to help capitalize on the country’s progressive regulatory framework, including Brazil’s Fuel of the Future Law, enacted in 2024. The law mandates an increase in the biodiesel content of diesel fuel, starting from 15 percent in March and increasing to 20 percent by 2030. It also requires the adoption of Sustainable Aviation Fuel (SAF) and for domestic flights to reduce greenhouse gas emissions by 1 percent starting in 2027, growing to 10 percent reduction by 2037.

“These steps enable us to augment Brazil’s longstanding bioindustrial ecosystem with next-generation capabilities, reducing early commercialization risk and expanding optionality for future product platforms,” Marcio Silva, CTO of Cemvita, said in the news release. “Together, they strengthen our ability to move from proof-of-concept to industrial reality.”

20-plus companies will pitch at Energy Tech Nexus' Pilotathon during Houston Energy & Climate Startup Week. Photo via Getty Images.

Energy Tech Nexus announces international startups to pitch at Pilotathon

Ready, Set, Pitch

Energy Tech Nexus will host its Pilotathon and Showcase as part of Houston Energy & Climate Startup Week next Tuesday, Sept. 16, featuring insightful talks from industry leaders and pitches from an international group of companies in the clean energy space.

This year's event will center around the theme "Energy Access and Resilience." Attendees will hear pitches from nine Pilotathon pitch companies, as well as the 14 companies that were named to Energy Tech Nexus' COPILOT accelerator earlier this year.

COPILOT partners with Browning the Green Space, a nonprofit that promotes diversity, equity and inclusion (DEI) in the clean energy and climatetech sectors. The Wells Fargo Innovation Incubator (IN²) at the National Renewable Energy Laboratory backs the COPILOT accelerator, where companies are tasked with developing pilot projects for their innovations.

The nine Pilotathon pitch companies include:

Ontario-based AlumaPower, which has developed a breakthrough technology that converts the aluminum-air battery into a "galvanic generator," a long-duration energy source that runs on aluminum as a fuel
Calgary-based BioOilSolv, a chemical manufacturing company that has developed cutting-edge biomass-derived solvents
Atlanta-based Cultiv8 Fuels, which creates high-quality renewable fuel products derived from hemp
Newfoundland-based eDNAtec Inc., a leader in environmental genomics that analyzes biodiversity and ecological health
Oregon-based Espiku Inc., which designs and develops water treatment and mineral extraction technologies that rely on low-pressure evaporative cycles
New York-based Fast Metals Inc., which has developed a chemical process to extract valuable metals from complex toxic mine tailings that is capable of producing iron, aluminum, scandium, titanium and other rare earth elements using industrial waste and waste CO2 as inputs
New Jersey-based Metal Light Inc., which is building a circular, solid metal fuel that will serve as a replacement for diesel fuel
Glasgow-based Novosound, which designs and manufactures innovative ultrasound sensors using a thin-film technique to address the limitations of traditional ultrasound with applications in industrial, medical and wearable markets
Calgary-based Serenity Power, which has developed a cutting-edge solid oxide fuel cell (SOFC) technology

The COPILOT accelerator companies include:

Accelerate Wind
Aquora Biosystems Inc.
EarthEn
Electromaim
EnKoat
GeoFuels
Harber Coatings Inc.
Janta Power
NanoSieve
PolyQor Inc.
Popper Power
Siva Powers America
ThermoShade
V-Glass Inc.

Gold H2 harvests clean hydrogen from depleted California reservoirs in first field trial

breakthrough trial

Houston climatech company Gold H2 completed its first field trial that demonstrates subsurface bio-stimulated hydrogen production, which leverages microbiology and existing infrastructure to produce clean hydrogen.

Gold H2 is a spinoff of another Houston biotech company, Cemvita.

“When we compare our tech to the rest of the stack, I think we blow the competition out of the water," Prabhdeep Singh Sekhon, CEO of Gold H2 Sekhon previously told Energy Capital.

The project represented the first-of-its-kind application of Gold H2’s proprietary biotechnology, which generates hydrogen from depleted oil reservoirs, eliminating the need for new drilling, electrolysis or energy-intensive surface facilities. The Woodlands-based ChampionX LLC served as the oilfield services provider, and the trial was conducted in an oilfield in California’s San Joaquin Basin.

According to the company, Gold H2’s 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.

“This field trial is tangible proof. We’ve taken a climate liability and turned it into a scalable, low-cost hydrogen solution,” Sekhon said in a news release. “It’s a new blueprint for decarbonization, built for speed, affordability, and global impact.”

Highlights of the trial include:

First-ever demonstration of biologically stimulated hydrogen generation at commercial field scale with unprecedented results of 40 percent H2 in the gas stream.
Demonstrated how end-of-life oilfield liabilities can be repurposed into hydrogen-producing assets.
The trial achieved 400,000 ppm of hydrogen in produced gases, which, according to the company,y is an “unprecedented concentration for a huff-and-puff style operation and a strong indicator of just how robust the process can perform under real-world conditions.”
The field trial marked readiness for commercial deployment with targeted hydrogen production costs below $0.50/kg.

“This breakthrough isn’t just a step forward, it’s a leap toward climate impact at scale,” Jillian Evanko, CEO and president at Chart Industries Inc., Gold H2 investor and advisor, added in the release. “By turning depleted oil fields into clean hydrogen generators, Gold H2 has provided a roadmap to produce low-cost, low-carbon energy using the very infrastructure that powered the last century. This changes the game for how the world can decarbonize heavy industry, power grids, and economies, faster and more affordably than we ever thought possible.”

Cemvita has partnered with Brazilian sustainable research institution REMA. Photo courtesy of Cemvita

Houston biotech company continues to expand in Brazil with new research partner

global expansion

Houston biotech company Cemvita has announced a strategic collaboration with Brazilian sustainable research institution REMA.

The move aims to promote Cemvita’s platform for evaluating and testing carbon waste streams as feedstocks for producing sustainable oil, according to the company.

Cemvita utilizes synthetic biology to transform carbon emissions into valuable bio-based chemicals. REMA professors Marcio Schneider and Admir Giachini have previously worked with Cemvita’s CTO, Marcio Busi da Silva, for approximately 20 years.

“This long-standing partnership reflects not only our strong professional ties, but also our shared commitment to advancing science and technology for a more sustainable future," Busi da Silva said in a news release.

REMA’s center is based in Florianópolis and is affiliated with the Federal University of Santa Catarina, which develops cost-effective environmental and technological solutions in automation, chemical engineering, biotech, environmental engineering and agronomy.

“Partnering with REMA in Florianópolis represents a significant step forward in our mission to transform carbon waste into valuable resources,” Tara Karimi, chief science and sustainability officer of Cemvita, said in a news release. “Together, we will enhance our platform’s capabilities, leveraging REMA’s expertise to evaluate and utilize diverse waste streams for sustainable oil production, further advancing the circular bioeconomy in Brazil and beyond.”

Cemvita recently expanded to Brazil to capitalize on the country’s progressive regulatory framework, which includes Brazil’s Fuel of the Future Law. The expansion also aimed to coincide with the 2025 COP30, the UN’s climate change conference, which will be hosted in Brazil in November.

Cemvita became capable of generating 500 barrels per day of sustainable oil from carbon waste at its first commercial plant in 2024, and as a result, Cemvita quadrupled output at its Houston plant. The company originally planned to reach this milestone in 2029.

Also in 2025, Cemvita announced a partnership with Brazil-based Be8 that focused on converting biodiesel byproduct glycerin into low-carbon feedstock to help support the decarbonization of the aviation sector. Cemvita agreed to a 20-year contract that specified it would supply up to 50 million gallons of SAF annually to United Airlines in 2023.

Fervo Energy claimed a top 10 spot on Time magazine and Statista’s new list of America’s Top GreenTech Companies of 2025. Photo via Getty Images.

8 Houston energy companies land on Time's top greentech list for 2025

top honor

The accolades keep rolling in for Houston-based Fervo Energy, a producer of geothermal power.

Fervo lands at No. 6 on Time magazine and Statista’s new list of America’s Top GreenTech Companies of 2025. The ranking recognizes sustainability-focused companies based on factors such as impact, financial strength, and innovation.

Time notes that Fervo broke ground in 2023 in Utah on what the company claims will be the world’s largest geothermal plant. The plant is scheduled to start supplying carbon-free electricity to the grid next year and to reach its 400-megawatt capacity in three years.

“Technologies like this only make a difference if we deploy them at large-scale in a way that can reduce carbon emissions and increase the reliability of the grid,” Fervo CEO Tim Latimer told Time in 2023.

The startup was named North American Company of the Year by research and consulting firm Cleantech Group for 2025. Fervo topped the Global Cleantech 100, Cleantech Group’s annual list of the world’s most innovative and promising cleantech companies.

Last year, Fervo also made Time’s list of the 200 Best Inventions of 2024. Fervo was recognized in the green energy category for its FervoFlex geothermal power system.

Founded in 2017, Fervo is now a unicorn, meaning its valuation as a private company exceeds $1 billion. The startup’s valuation is estimated at $1.4 billion. According to PitchBook data, the company raised $634 million in the fourth quarter of 2024.

In all, eight Houston-area companies appear among the top 250 greentech companies ranked by Time and Statista. Other than Fervo, they are:

No. 43 Lancium Technologies, an energy storage and distribution company
No. 50 Solugen, a producer of sustainable chemicals.
No. 56 Quaise Energy, which specializes in terawatt-scale geothermal power.
No. 129 Plus Power, a developer, owner and operator of battery storage projects.
No. 218 Dream Harvest, which promotes sustainable vertical farming.
No. 225 Cemvita, which uses synthetic biology to convert carbon emissions into bio-based chemicals.
No. 226 Syzygy Plasmonics, which decarbonizes chemical production.

Vermont-based BETA Technologies claimed the No. 1 spot. The company manufactures electric aircraft.

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Investment bank opens energy-focused office in Houston

new to hou

Investment bank Cohen & Co. Capital Markets has opened a Houston office to serve as the hub of its energy advisory business and has tapped investment banking veteran Rahul Jasuja as the office’s leader.

Jasuja joined Cohen & Co. Capital Markets, a subsidiary of financial services company Cohen & Co., as managing director, and head of energy and energy transition investment banking. Cohen’s capital markets arm closed $44 billion worth of deals last year.

Jasuja previously worked at energy-focused Houston investment bank Mast Capital Advisors, where he was managing director of investment banking. Before Mast Capital, Jasuja was director of energy investment banking in the Houston office of Wells Fargo Securities.

“Meeting rising [energy] demand will require disciplined capital allocation across traditional energy, sustainable fuels, and firm, dispatchable solutions such as nuclear and geothermal,” Jasuja said in a news release. “Houston remains the center of gravity where capital, operating expertise, and execution come together to make that transition investable.”

The Houston office will focus on four energy verticals:

Energy systems such as nuclear and geothermal
Energy supply chains
Energy-transition fuel and technology
Traditional energy

“We are making a committed investment in Houston because we believe the infrastructure powering AI, defense, and energy transition — from nuclear to rare-earth technology — represents the next secular cycle of value creation,” Jerry Serowik, head of Cohen & Co. Capital Markets, added in the release.

Houston cleantech startup Helix Earth lands $1.2M NSF grant

federal funding

Renewable equipment manufacturer Helix Earth Technologies is one of three Houston-based companies to secure federal funding through the Small Business Innovation Research (SBIR) Phase II grant program in recent months.

The company—which was founded based on NASA technology, spun out of Rice University and has been incubated at Greentown Labs—has received approximately $1.2 million from the National Science Foundation to develop its high-efficiency retrofit dehumidification systems that aim to reduce the energy consumption of commercial AC units. The company reports that its technology has the potential to cut AC energy use by up to 50 percent.

"This award validates our vision and propels our impact forward with valuable research funding and the prestige of the NSF stamp of approval," Rawand Rasheed, Helix CEO and founder, shared in a LinkedIn post. "This award is a reflection our exceptional team's grit, expertise, and collaborative spirit ... This is just the beginning as we continue pushing for a sustainable future."

Two other Houston-area companies also landed $1.2 million in NSF SBIR Phase II funding during the same period:

Resilitix Intelligence, a disaster AI startup that was founded shortly after Hurricane Harvey, that works to "reduce the human and economic toll of disasters" by providing local and state organizations and emergency response teams with near-real-time, AI-driven insights to improve response speed, save lives and accelerate recovery
Conroe-based Fluxworks Inc., founded in 2021 at Texas A&M, which provides magnetic gear technology for the space industry that has the potential to significantly enhance in-space manufacturing and unlock new capabilities for industries by allowing advanced research and manufacturing in microgravity

The three grants officially rolled out in early September 2025 and are expected to run through August 2027, according to the NSF. The SBIR Phase II grants support in-depth research and development of ideas that showed potential for commercialization after receiving Phase I grants from government agencies.

However, congressional authority for the program, often called "America's seed fund," expired on September 30, 2025, and has stalled since the recent government shutdown. Government agencies cannot issue new grants until Congress agrees on a path forward. According to SBIR.gov, "if no further action is taken by Congress, federal agencies may not be able to award funding under SBIR/STTR programs and SBIR/STTR solicitations may be delayed, cancelled, or rescinded."

Mars Materials makes breakthrough in clean carbon fiber production

Future of Fiber

Houston-based Mars Materials has made a breakthrough in turning stored carbon dioxide into everyday products.

In partnership with the Textile Innovation Engine of North Carolina and North Carolina State University, Mars Materials turned its CO2-derived product into a high-quality raw material for producing carbon fiber, according to a news release. According to the company, the product works "exactly like" the traditional chemical used to create carbon fiber that is derived from oil and coal.

Testing showed the end product met the high standards required for high-performance carbon fiber. Carbon fiber finds its way into aircraft, missile components, drones, racecars, golf clubs, snowboards, bridges, X-ray equipment, prosthetics, wind turbine blades and more.

The successful test “keeps a promise we made to our investors and the industry,” Aaron Fitzgerald, co-founder and CEO of Mars Materials, said in the release. “We proved we can make carbon fiber from the air without losing any quality.”

“Just as we did with our water-soluble polymers, getting it right on the first try allows us to move faster,” Fitzgerald adds. “We can now focus on scaling up production to accelerate bringing manufacturing of this critical material back to the U.S.”

Mars Materials, founded in 2019, converts captured carbon into resources, such as carbon fiber and wastewater treatment chemicals. Investors include Untapped Capital, Prithvi Ventures, Climate Capital Collective, Overlap Holdings, BlackTech Capital, Jonathan Azoff, Nate Salpeter and Brian Andrés Helmick.

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