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Geothermal energy startup's $600M deal fuels surge in Houston VC funding

by the numbers

PitchBook attributes $634 million in fourth-quarter VC to Fervo. Photo via Getty Images

The venture capital haul for Houston-area startups jumped 23 percent from 2023 to 2024, according to the latest PitchBook-NVCA Venture Monitor.

The fundraising total for startups in the region climbed from $1.49 billion in 2023 to $1.83 billion in 2024, PitchBook-NVCA Venture Monitor data shows.

Roughly half of the 2024 sum, $914.3 million, came in the fourth quarter. By comparison, Houston-area startups collected $291.3 million in VC during the fourth quarter of 2023.

Among the Houston-area startups contributing to the impressive VC total in the fourth quarter of 2024 was geothermal energy startup Fervo Energy. PitchBook attributes $634 million in fourth-quarter VC to Fervo, with fulfillment services company Cart.com at $50 million, and chemical manufacturing platform Mstack and superconducting wire manufacturer MetOx International at $40 million each.

Across the country, VC deals total $209 billion in 2024, compared with $162.2 billion in 2023. Nearly half (46 percent) of all VC funding in North America last year went to AI startups, PitchBook says. PitchBook’s lead VC analyst for the U.S., Kyle Stanford, says that AI “continues to be the story of the market.”

PitchBook forecasts a “moderately positive” 2025 for venture capital in the U.S.

“That does not mean that challenges are gone. Flat and down rounds will likely continue at higher paces than the market is accustomed to. More companies will likely shut down or fall out of the venture funding cycle,” says PitchBook. “However, both of those expectations are holdovers from 2021.”

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This story originally appeared on our sister site, InnovationMap.com.

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Named Project Arch, the facility will be the first large-scale operation of its kind in the country. It's expected to break ground next year. Photo via Getty Images

DOE doles out $80M for Houston superconductor tech manufacturer's new facility

fresh funding

Fresh off a recent raise, an energy transition startup has been selected for a U.S. Department of Energy-backed $80 million project.

MetOx International, which develops and manufactures high-temperature superconducting (HTS) wire and announced it closed a $25 million series B extension, will negotiate $80 million in funding from the DOE to stand up an advanced manufacturing facility in the southeastern United States.

Named Project Arch, the facility will be the first large-scale operation of its kind in the country. It's expected to break ground next year.

"We are thrilled to receive this support from the Department of Energy, which allows us to bring cutting-edge manufacturing and over 200 high tech job opportunities to the southeastern United States," Bud Vos, CEO of MetOx, says in a statement. "Project Arch not only represents a transformative milestone for our company, but it establishes the U.S. as a true leader in HTS technology.

"This project will have an immediate and tangible impact on the local economy and the energy sector, powering new technologies that rely on the unmatched power-carrying capacity of superconductors," he continues. "Through Project Arch, we are driving a more resilient, efficient, and sustainable energy future—for the U.S. and the world."

HTS wire technology is critical for the energy transition, especially amid rising data center growth, and for next generation wind turbines and interconnections.

"The transition to America's clean energy future is being shaped by communities filled with the valuable talent and experience that comes from powering our country for decades," adds U.S. Secretary of Energy Jennifer Granholm. "By leveraging the know-how and skillset of the former coal workforce, we are strengthening our national security while helping advance forward-facing technologies and revitalize communities across the nation."

MetOx's technology originated out of the University of Houston and was founded in 1998 by Alex Ignatiev, UH professor emeritus of physics and a fellow of the National Academy of Inventors. Last year, the company secured $3 million in funding from the U.S. Department of Energy to support the advancement of its proprietary manufacturing technology for its HTS wire.

At the GHP's Future of Global Energy event, panelists discussed the opportunities for scale in Houston. Photo by Natalie Harms/EnergyCapital

Panel: Houston's access to talent, strong network drives it as a city for scaling energy transition business

thought leadership

Time is of the essence when it comes to scaling energy transition businesses in Houston — at least that's what a group of panelists agreed on at a recent event from the Greater Houston Partnership.

The GHP's Future of Global Energy event, which took place on October 9, featured a panel entitled, "Epicenter of Energy Innovation for Scale" and was moderated by Barbara Burger, former president of Chevron Technology Ventures and current startup adviser and mentor. Joining Burger was Kristina Lund, president of Pattern Energy; Brooke Vandygriff, COO of HIF Global: and Bud Vos, CEO of MetOx International. All three companies have and plan to continue scaling in Houston.

The conversation covered some of the unique achievements each of the panelists' companies have reached recently, including HIF Global's millions raised to create e-fuels, MetOx's $25 million series B extension, and Pattern Energy's Southern Spirit project scoring $360 million from the Department of Energy to connect Texas's ERCOT to other states.

After covering the momentum each company has right now, Burger asked each of the panelists why Houston makes sense as a place for scaling their energy transition business.

"The U.S. has a great regulatory environment, ERCOT specifically. Texas is in the business of permitting projects," Vandygriff says. "If you take the right steps, you can get your permits. They are very responsive to attracting and recruiting businesses here."

Also attractive is Houston's existing energy workforce. Even when it comes to technology roles, Houston delivers.

"There is great tech talent here," Vos says, pointing out that Bill Gates called Houston the "Silicon Valley of energy" when he was here for CERAWeek. "I think there's an element of that that's very true. There's a lot innovation, there's a lot of creative thinking, and being able to come out of these businesses with huge momentum then go into startups and innovate is a culture change that I think Houston is going through."

The panelists, most of whom are not Houston natives, agreed in a welcoming culture within the business sector.

"I really think that Houston offers great hospitality, and the energy networks here are so strong," Lund says. "You feel the energy of the city."

The fresh funding will go toward advancing the company's Xeus HTS wire technology. Photo via metoxtech.com

Houston superconductor tech manufacturer raises $25M

money moves

A Houston company has closed its series B extension at $25 million.

MetOx International, which develops and manufactures high-temperature superconducting (HTS) wire, announced it closed a $25 million series B extension. Centaurus Capital, an energy-focused family office, and New System Ventures, a climate and energy transition-focused venture firm, led the round with participation from other investors.

"MetOx has developed a robust and highly scalable operation, and we are thrilled to partner with the Company as it enters this pivotal growth stage," says John Arnold, founder of Centaurus, in a news release. "The market for HTS is expanding at an unprecedented pace, with demand for HTS far outweighing supply. MetOx is poised to be the leading U.S. HTS producer, closing the supply gap and bringing dramatic capacity to high power innovations and applications. Their progress and potential are unmatched in the field, and we are proud to support their growth."

The fresh funding will go toward advancing the company's Xeus HTS wire technology for key energy transition applications by expanding MetOx's U.S.-based manufacturing capabilities to meet demand.

"This funding marks a pivotal step in our mission to revolutionize the energy and technology sectors with our advanced power delivery technology and accelerate delivery for our customers and partners. HTS is critical to enhancing the efficiency of our electric grid and enabling technological developments that, in many cases, would not be viable or even possible without superconductor technology," adds Bud Vos, CEO of MetOx. "Support from investors such as Centaurus and NSV not only provides the financial resources and strategic support required for accelerated scaleup, but also validates the broad reach of our technology across energy, data center, medical, and defense industries."

HTS wire technology is critical for the energy transition, especially amid rising data center growth, and for next generation wind turbines and interconnections.

MetOx's technology originated out of the University of Houston and was founded in 1998 by Alex Ignatiev, UH professor emeritus of physics and a fellow of the National Academy of Inventors. Last year, the company secured $3 million in funding from the U.S. Department of Energy to support the advancement of its proprietary manufacturing technology for its HTS wire.

"MetOx's HTS technology aligns with our systems-level research and offers a unique opportunity to dramatically accelerate the energy transition," says Ian Samuels, founder and managing partner at NSV. "MetOx's Xeus wire stands to be a force multiplier in clean energy generation and high-power transmission and distribution, enabling load growth and the deployment of power-dense data centers. NSV is excited to support MetOx as it scales domestic manufacturing capacity."

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This article originally ran on InnovationMap.

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Japanese company launches solar module manufacturing at Houston-area plant

solar plant

A local subsidiary of a Japanese solar equipment manufacturer recently began producing solar modules at a new plant in Humble.

TOYO Co. Ltd.’s TOYO Solar LLC subsidiary can produce 1 gigawatt worth of solar modules per year at a 567,140-square-foot plant it leases in Lovett Industrial’s Nexus North Logistics Park on Greens Road. TOYO Solar’s next phase will accommodate 2.5 gigawatts’ worth of solar module manufacturing. The subsidiary eventually plans to expand manufacturing capacity to 6.5 gigawatts.

For now, TOYO Solar operates only one assembly line at the Humble plant. Once TOYO Solar has five assembly lines up and running, it could employ as many as 750 manufacturing workers there, according to Connect CRE.

TOYO says the plant enlarges its U.S. footprint “to be closer to the majority of its clients, meet the demand for American-made solar panels, and contribute to the growing demand for secure, sustainable energy solutions as demands on the grid continue to rise.”

Last month, TOYO purchased the remaining 24.99 percent stake in TOYO Solar to make it a wholly owned subsidiary. TOYO entered the Houston-area market through its 2024 acquisition of a majority stake in Solar Plus Technology Texas LLC.

Record $9.6M fine for Houston-based co. after Gulf of Mexico oil spill

In the news

Pipeline safety regulators on Monday, January 5, assessed their largest fine ever against the company responsible for leaking 1.1 million gallons of oil into the Gulf off the coast of Louisiana in 2023. But the $9.6 million fine isn’t likely to be a major burden for Third Coast to pay.

This single fine is close to the normal total of $8 million to $10 million in all fines that the Pipeline and Hazardous Materials Safety Administration hands out each year. But Third Coast has a stake in some 1,900 miles of pipelines, and in September, the Houston-based company announced that it had secured a nearly $1 billion loan.

Pipeline Safety Trust Executive Director Bill Caram said this spill “resulted from a company-wide systemic failure, indicating the operator’s fundamental inability to implement pipeline safety regulations,” so the record fine is appropriate and welcome.

“However, even record fines often fail to be financially meaningful to pipeline operators. The proposed fine represents less than 3% of Third Coast Midstream’s estimated annual earnings,” Caram said. “True deterrence requires penalties that make noncompliance more expensive than compliance.”

The agency said Third Coast didn't establish proper emergency procedures, which is part of why the National Transportation Safety Board found that operators failed to shut down the pipeline for nearly 13 hours after their gauges first hinted at a problem. PHMSA also said the company didn't adequately assess the risks or properly maintain the 18-inch Main Pass Oil Gathering pipeline.

The agency said the company “failed to perform new integrity analyses or evaluations following changes in circumstances that identified new and elevated risk factors” for the pipeline.

That echoed what the NTSB said in its final report in June, that “Third Coast missed several opportunities to evaluate how geohazards may threaten the integrity of their pipeline. Information widely available within the industry suggested that land movement related to hurricane activity was a threat to pipelines.”

The NTSB said the leak off the coast of Louisiana was the result of underwater landslides, caused by hazards such as hurricanes, that Third Coast, the pipeline owner, failed to address despite the threats being well known in the industry.

A Third Coast spokesperson said the company has been working to address regulators' concerns about the leak, so it was taken aback by some of the details the agency included in its allegations and the size of the fine.

“After constructive engagement with PHMSA over the last two years, we were surprised to see aspects of the recent allegations that we believe are inaccurate and exceed established precedent. We will address these concerns with the agency moving forward," the company spokesperson said.

The amount of oil spilled in this incident was far less than the 2010 BP oil disaster, when 134 million gallons were released in the weeks following an oil rig explosion, but it could have been much smaller if workers in the Third Coast control room had acted more quickly, the NTSB said.

40+ climatetech startups join Greentown, including a dozen from Houston

green team

More than 40 climatetech startups joined the Greentown Labs Houston community in the second half of 2025. Twelve hail from the Bayou City.

The companies are among a group of nearly 70 that joined the climatetech incubator, which is co-located in Houston and Boston, in Q3 and Q4.

The new companies that have joined the Houston incubator specialize in a variety of clean energy applications, from green hydrogen-producing water-splitting cycles to drones that service wind turbines.

The local startups that joined Greentown Houston include:

  • Houston-based Wise Energie, which delivers turnkey microgrids that blend vertical-axis wind, solar PV, and battery storage into a single, silent system.
  • The Woodlands-based Resollant, which is developing compact, zero-emissions hydrogen and carbon reactors to provide low-cost, scalable clean hydrogen and high-purity carbon for the energy and manufacturing sectors.
  • Houston-based ClarityCastle, which designs and manufactures modular, soundproof work pods that replace traditional drywall construction with reusable, low-waste alternatives made from recycled materials.
  • Houston-based WattSto Energy, which manufactures vanadium redox flow batteries to deliver long-duration storage for both grid-scale projects and off-grid microgrids.
  • Houston-based AMPeers, which delivers advanced, high-temperature superconductors in the U.S. at a fraction of traditional costs.
  • Houston-based Biosimo, which is developing bio-based platform chemicals, pioneering sustainable chemistry for a healthier planet and economy.
  • Houston-based Ententia, which offers purpose-built, generative AI for industry.
  • Houston-based GeoKiln Energy Innovation, which is developing a new way to produce clean hydrogen by accelerating natural geologic reactions in iron-rich rock formations using precision electrical heating.
  • Houston-based Timbergrove, which builds AI and IoT solutions that connect and optimize assets—boosting visibility, safety, and efficiency.
  • Houston-based dataVediK, which combines energy-domain expertise with advanced machine learning and intelligent automation to empower organizations to achieve operational excellence and accelerate their sustainability goals.
  • Houston-based Resonant Thermal Systems, which uses a resonant energy-transfer (RET) system to extract critical minerals from industrial and natural brines without using membranes or grid electricity.
  • Houston-based Torres Orbital Mining (TOM),which develops autonomous excavation systems for extreme environments on Earth and the moon, enabling safe, data-driven resource recovery and laying the groundwork for sustainable off-world industry.

Other startups from around the world joined the Houston incubator in the same time period, including:

More than 100 startups joined Greentown this year, according to an end-of-year reflection shared by Greentown CEO Georgina Campbell Flatter.

Flatter joined Greentown in the top leadership role in February 2025. She succeeded former CEO and president Kevin Knobloch, who stepped down in July 2024.

"I moved back to the United States in March 2025 after six years overseas—2,000 miles, three children, and one very patient husband later. Over these months, I’ve had the chance to hear from the entrepreneurs, industry leaders, investors, and partners who make this community thrive. What I’ve experienced has left me brimming with urgent optimism for the future we’re building together," she said in the release.

According to Flatter, Greentown alumni raised more than $2 billion this year and created more than 3,000 jobs.

"Greentown startups and ecosystem leaders—from Boston, Houston, and beyond—are showing that we can move further and faster together. That we don’t have to choose between more energy or lower emissions, or between increasing sustainability and boosting profit. I call this the power of 'and,'" Flatter added. "We’re working for energy and climate, innovation and scale, legacy industry and startups, prosperity for people and planet. The 'and' is where possibility expands."

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