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

top honor

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.

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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Last month, the inaugural Houston Energy and Climate Startup Week 2024 successfully highlighted the GHP and HETI's mission. Photo via GHP

Highlights from the inaugural Houston Energy and Climate Startup Week

the view from heti

Houston has become the hub for startups and companies looking to scale innovative technologies that are transforming the energy industry and advancing a sustainable, low-carbon future. Last month, the inaugural Houston Energy and Climate Startup Week 2024 successfully highlighted this mission.

Rice Alliance for Technology and Entrepreneurship, Halliburton Labs, Greentown Labs, Digital Wildcatters launched the inaugural startup week in collaboration with the Partnership’s Houston Energy Transition Initiative. The week brought together leading energy and climate venture capital investors, industry leaders, and startups from around the world.

Over 30 events took place from September 9-13, featuring more than 100 speakers and 125 startups. Attendance numbers came in at over 1,400 people across the week’s anchor events, and additional events were individually organized by organizations and startups in Houston’s ecosystem.

“By hosting the Houston Energy & Climate Startup Week, we're not just showcasing our city's strengths - we're actively shaping its future. This event is a critical catalyst for fostering collaboration, investment and talent development within the burgeoning energy and climate tech ecosystem. This week is about demonstrating our commitment to that future and inspiring the next generation of energy innovators,” says Janice Tran, Kanin Energy CEO & Co-Founder

The Kickoff event, sponsored by Repsol, Microsoft and BBVA, hosted fireside chats by several of Houston’s leading startups, including Solugen, Cemvita, Kanin Energy and Syzygy.

“Houston is at the forefront of not just energy innovation, but industrial innovation more broadly. With the momentum that's built over the last few years, it's the perfect time to showcase our progress and drive further advancements in climate solutions,” says Gaurab Chakrabarti, Solugen CEO and co-founder.

Houston is home to more than 65 incubators and accelerators and over 260 cleantech and climate tech startups. The region continues to build momentum and is focused on attracting investment for this growing sector, seeing a 577 percent growth since 2019. According to Partnership data, there has been over $1.95 billion and 175 deals with cleantech and climate tech startups.

"Houston is uniquely positioned to tackle the greatest challenge of our time - producing more energy with fewer emissions. This city is where energy innovation scales and opportunity thrives. As a natural hub for startups and investors, Houston brought this to life during Houston Energy and Climate Startup Week. Years in the making, this event was launched to answer the question: Can the whole be greater than the sum of its parts? This past week proved it can. We look forward to continue building on this successful week,” says Jane Stricker, senior vice president at Greater Houston Partnership and executive director of the Houston Energy Transition Initiative.

———

This article originally ran 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.

According to a new report, Houston attracted the fifth most climatetech funding last year in the United States. Photo via Getty Images

With $200M raised last year, Houston cleans up on new report tracking climatetech funding

We're No. 5

Climatech funding for Houston-area startups crept toward the $200 million mark in 2023 — putting it ahead of Dallas-Fort Worth, Austin, and several other major metro areas and making it a standout among U.S. climatech hubs.

Last year, the Houston area collected $199.94 million in climatech funding across 14 deals, according to PitchBook data analyzed by Revolution Growth, a venture capital firm based in Washington, D.C.

“With its deep-rooted energy sector, Houston is an attractive HQ for companies innovating within renewable energy, carbon capture, and emissions reduction,” Revolution says. “Partnerships with oil and gas companies also provide unique collaboration opportunities for climate tech startups, accelerating market adoption and helping companies achieve scale quickly.”

Los Angeles led the climatech funding list at $544.62 million, followed by No. 2 Denver, No. 3 D.C., No. 4 Seattle, and No. 5 Houston. In 12th place was Dallas-Fort Worth ($30.55 million). Austin claimed the No. 15 spot ($13.38 million).

“While traditional coastal tech hubs still hold considerable influence, dozens of [climatech] clusters are emerging between them,” says Revolution.

In its new report on America’s top climatech hubs, Revolution cites three Houston startups to watch:

  • Buildforce, a platform for workers in the electrical trades
  • Fervo Energy, a supplier of carbon-free energy through geothermal projects
  • Solugen, a developer of bio-based chemicals that replace traditional petroleum-based products
Solugen claims a spot on CNBC’s annual Disruptor 50 list, which highlights private companies that are “upending the classic definition of disruption.” Photo via solugen.com

Houston-based Solugen named among annual top disruptors

on the rise

Houston-based biotech startup Solugen is making waves among innovative companies.

Solugen appears at No. 36 on CNBC’s annual Disruptor 50 list, which highlights private companies that are “upending the classic definition of disruption.” Privately owned startups founded after January 1, 2009, were eligible for the Disruptor 50 list.

Founded in 2016, Solugen replaces petroleum-based products with plant-derived substitutes through its Bioforge manufacturing platform. For example, it uses engineered enzymes and metal catalysts to convert feedstocks like sugar into chemicals that have traditionally been made from fossil fuels, such as petroleum and natural gas.

Solugen has raised $643 million in funding and now boasts a valuation of $2.2 billion.

“Sparked by a chance medical school poker game conversation in 2016, Solugen evolved from prototype to physical asset in five years, and production hit commercial scale shortly thereafter,” says CNBC.

Solugen co-founders Gaurab Chakrabarti and Sean Hunt received the Entrepreneur of The Year 2023 National Award, presented by professional services giant EY.

“Solugen is a textbook startup launched by two partners with $10,000 in seed money that is revolutionizing the chemical refining industry. The innovation-driven company is tackling impactful, life-changing issues important to the planet,” Entrepreneur of The Year judges wrote.

In April 2024, Solugen broke ground on a Bioforge biomanufacturing plant in Marshall, Minnesota. The 500,000-square-foot, 34-acre facility arose through a Solugen partnership with ADM. Chicago-based ADM produces agricultural products, commodities, and ingredients. The plant is expected to open in the fall of 2025.

“Solugen’s … technology is a transformative force in sustainable chemical manufacturing,” says Hunt. “The new facility will significantly increase our existing capabilities, enabling us to expand the market share of low-carbon chemistries.”

———

This article originally ran on InnovationMap.

Gaurab Chakrabarti and Sean Hunt were originally named regional winners in this year's competition this summer along with nine other Houston entrepreneurs. Photos via solugen.com

Houston sustainability startup founders named winners for 2023 Entrepreneur of the Year awards

winner, winner

Houston’s Gaurab Chakrabarti and Sean Hunt, the founders of the transformative chemical manufacturing company Solugen, have been named EY’s US National Award winners for Entrepreneur of the Year.

Solugen, also recently named a finalist in the 2023 Houston Innovation Awards, is an environmentally friendly approach that relies on smaller chemical refineries that helps in reducing costs and transportation-related emissions.

Some of their noted accomplishments includes innovations like the proprietary reactor, dubbed the Bioforge, which is a carbon-negative molecule factory and manufacturing process produces zero wastewater or emissions compared with traditional petrochemical refineries.The Bioforge uses a chemienzymatic process in converting plant-sourced substances into essential materials that can be used instead of fossil fuels.

Chakrabarti and Hunt were originally named regional winners in this year's competition this summer along with nine other Houston entrepreneurs.

Founded in 2016 by Hunt and Gaurab Chakrabarti, Solugen has raised over $600 million from investors like Sasol that believe in the technology's potential. The company is valued at reportedly over $2 billion. Solugen is headquartered in Houston, not because it is the hometown of Chakrabarti, but for what Houston brings to the company.

“There’s no way our business could succeed in the Bay Area," Chakrabarti said in a 2023 interview at SXSW where he detailed the offers Hunt and he received to move the business out of state. “For our business, if you look at the density of chemical engineers, the density of our potential customers, and the density of people who know how to do enzyme engineering, Houston happened to be that perfect trifecta for us.”

Even though they are headquartered in Houston, Solugen recently secured plans to expand to the Midwest, as in November they announced its newest strategic partnership with sustainable solutions company ADM (NYSE:ADM) in Marshall, Minnesota. The partnership includes plans for Solugen to build a 500,000-square-foot biomanufacturing facility next to an existing ADM facility , with the two companies working together on producing biomaterials to replace fossil fuel products.

“The strategic partnership with ADM will allow Solugen to bring our chemienzymatic process to a commercial scale and meet existing customer demand for our high-performance, cost-competitive, sustainable products,” Chakrabarti said in a news release. “As one of the few scaled-up and de-risked biomanufacturing assets in the country, Solugen’s Bioforge platform is helping bolster domestic capabilities and supply chains that are critical in ensuring the U.S. reaches its ambitious climate targets.”

For Chakrabarti and Hunt, Solugen was born out of a 12-year friendship, and the journey began after a friendly card game. After an entrepreneurship contest at MIT, which earned them second place and a $10,000 prize, they invested the winnings to work on what would become Solugen, a proof-of-concept reactor with materials bought from a local home improvement store.

"We had a conviction that we were building something that could be impactful to the rest of the world,” Chakrabarti said at SXSW in 2023.

———

This article originally ran on InnovationMap.

Solugen and Sasol have entered into a strategic partnership. Photo via Solugen

Houston-based sustainable chemicals company secures major partnership with Sasol

cleaner chemicals

A Houston company that's creating cleaner chemicals with little to no impact on the environment has scored a partnership with a major chemicals producer.

Solugen and Sasol Chemicals, a business unit of Saslo Ltd., revealed that they are working together to explore commercialization of sustainably-made home and personal care products.

“This agreement is an example of our approach of partnering to find innovative solutions for our customers,” Jonathan Ward, senior manager of Strategy and Sustainable Growth for Sasol’s Essential Care Chemicals business division, says in a news release. “Our focus is delivering high-performing products with lower carbon footprints at competitive prices, and we are eager to see how Solugen’s products might help us do that.”

Founded in 2016 by Sean Hunt and Gaurab Chakrabarti, Solugen's carbon-negative molecule factory, named the Bioforge, uses a chemienzymatic process in converting plant-sourced substances into essential materials that can be used instead of fossil fuels. The manufacturing process is carbon neutral, and Solugen has raised over $600 million from investors that believe in the technology's potential.

"We are thrilled to partner with Sasol Chemicals, one of the world’s largest producers of surfactants, to drive positive impact in the home and personal care market,” Chakrabarti, CEO of Solugen, says in the release. “Sasol’s commitment to sustainability makes it an ideal partner for Solugen. We look forward to leveraging our combined strengths in technology, production, and market development to meet increasing consumer demand for our high-performance, bio-based solutions.”

Chakrabarti shared some of the secrets to Solugen's success and early partnerships at a SXSW panel earlier this year. The company was also recently named a finalist in the 2023 Houston Innovation Awards.

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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.

Tesla no longer world's biggest EV maker as sales drop for second year

EV Update

Tesla lost its crown as the world’s bestselling electric vehicle maker as a customer revolt over Elon Musk’s right-wing politics, expiring U.S. tax breaks for buyers and stiff overseas competition pushed sales down for a second year in a row.

Tesla said that it delivered 1.64 million vehicles in 2025, down 9% from a year earlier.

Chinese rival BYD, which sold 2.26 million vehicles last year, is now the biggest EV maker.

It's a stunning reversal for a car company whose rise once seemed unstoppable as it overtook traditional automakers with far more resources and helped make Musk the world's richest man. The sales drop came despite President Donald Trump's marketing effort early last year when he called a press conference to praise Musk as a “patriot” in front of Teslas lined up on the White House driveway, then announced he would be buying one, bucking presidential precedent to not endorse private company products.

For the fourth quarter, Tesla sales totaled 418,227, falling short of even the much reduced 440,000 target that analysts recently polled by FactSet had expected. Sales were hit hard by the expiration of a $7,500 tax credit for electric vehicle purchases that was phased out by the Trump administration at the end of September.

Tesla stock fell 2.6% to $438.07 on Friday.

Even with multiple issues buffeting the company, investors are betting that Tesla CEO Musk can deliver on his ambitions to make Tesla a leader in robotaxi services and get consumers to embrace humanoid robots that can perform basic tasks in homes and offices. Reflecting that optimism, the stock finished 2025 with a gain of approximately 11%.

The latest quarter was the first with sales of stripped-down versions of the Model Y and Model 3 that Musk unveiled in early October as part of an effort to revive sales. The new Model Y costs just under $40,000 while customers can buy the cheaper Model 3 for under $37,000. Those versions are expected to help Tesla compete with Chinese models in Europe and Asia.

For fourth-quarter earnings coming out in late January, analysts are expecting the company to post a 3% drop in sales and a nearly 40% drop in earnings per share, according to FactSet. Analysts expect the downward trend in sales and profits to eventually reverse itself as 2026 rolls along.

Musk said earlier last year that a “major rebound” in sales was underway, but investors were unruffled when that didn't pan out, choosing instead to focus on Musk's pivot to different parts of business. He has has been saying the future of the company lies with its driverless robotaxis service, its energy storage business and building robots for the home and factory — and much less with car sales.

Tesla started rolling out its robotaxi service in Austin in June, first with safety monitors in the cars to take over in case of trouble, then testing without them. The company hopes to roll out the service in several cities this year.

To do that successfully, it needs to take on rival Waymo, which has been operating autonomous taxis for years and has far more customers. It also will also have to contend with regulatory challenges. The company is under several federal safety investigations and other probes. In California, Tesla is at risk of temporarily losing its license to sell cars in the state after a judge there ruled it had misled customers about their safety.

“Regulatory is going to be a big issue,” said Wedbush Securities analyst Dan Ives, a well-known bull on the stock. “We're dealing with people's lives.”

Still, Ives said he expects Tesla's autonomous offerings will soon overcome any setbacks.

Musk has said he hopes software updates to his cars will enable hundreds of thousands of Tesla vehicles to operate autonomously with zero human intervention by the end of this year. The company is also planning to begin production of its AI-powered Cybercab with no steering wheel or pedals in 2026.

To keep Musk focused on the company, Tesla’s directors awarded Musk a potentially enormous new pay package that shareholders backed at the annual meeting in November.

Musk scored another huge windfall two weeks ago when the Delaware Supreme Court reversed a decision that deprived him of a $55 billion pay package that Tesla doled out in 2018.

Musk could become the world's first trillionaire later this year when he sells shares of his rocket company SpaceX to the public for the first time in what analysts expect would be a blockbuster initial public offering.

Renewables to play greater role in powering data centers, JLL says

Data analysis

Renewable energy is evolving as the primary energy source for large data centers, according to a new report.

The 2026 Global Data Center Outlook from commercial real estate services giant JLL points out that the pivot toward big data centers being powered by renewable energy stems from rising electricity costs and tightening carbon reduction requirements. In the data center sector, renewable energy, such as solar and wind power, is expected to outcompete fossil fuels on cost, the report says.

The JLL forecast carries implications for the Houston area’s tech and renewable energy sectors.

As of December, Texas was home to 413 data centers, second only to Virginia at 665, according to Visual Capitalist. Dozens more data centers are in the pipeline, with many of the new facilities slated for the Houston, Austin, Dallas-Fort Worth and San Antonio areas.

Amid Texas’ data center boom, several Houston companies are making inroads in the renewable energy market for data centers. For example, Houston-based low-carbon energy supplier ENGIE North America agreed last May to supply up to 300 megawatts of wind power for a Cipher Mining data center in West Texas.

The JLL report says power, not location or cost, will become the primary factor in selecting sites for data centers due to multi-year waits for grid connections.

“Energy infrastructure has emerged as the critical bottleneck constraining expansion [of data centers],” the report says. “Grid limitations now threaten to curtail growth trajectories, making behind-the-meter generation and integrated battery storage solutions essential pathways for sustainable scaling.”

Behind-the-meter generation refers to onsite energy systems such as microgrids, solar panels and solar battery storage. The report predicts global solar capacity will expand by roughly 100 gigawatts between 2026 and 2030 to more than 10,000 gigawatts.

“Solar will account for nearly half of global renewable energy capacity in 2026, and despite its intermittent properties, solar will remain a key source of sustainable energy for the data center sector for years to come,” the report says.

Thanks to cost and sustainability benefits, solar-plus-storage will become a key element of energy strategies for data centers by 2030, according to the report.

“While some of this energy harvesting will be colocated with data center facilities, much of the energy infrastructure will be installed offsite,” the report says.

Other findings of the report include:

  • AI could represent half of data center workloads by 2030, up from a quarter in 2025.
  • The current five-year “supercycle” of data center infrastructure development may result in global investments of up to $3 trillion by 2030.
  • Nearly 100 gigawatts worth of new data centers will be added between 2026 and 2030, doubling global capacity.

“We’re witnessing the most significant transformation in data center infrastructure since the original cloud migration,” says Matt Landek, who leads JLL’s data center division. “The sheer scale of demand is extraordinary.”

Hyperscalers, which operate massive data centers, are allocating $1 trillion for data center spending between 2024 and 2026, Landek notes, “while supply constraints and four-year grid connection delays are creating a perfect storm that’s fundamentally reshaping how we approach development, energy sourcing, and market strategy.”

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