Houston oil tycoon Jeffery Hildebrand is the eighth-richest Texan, and the 51st most affluent person in the United States, Forbes says. Photo by Anthony Rathbun

Austin's Elon Musk and Michael Dell are the richest people in Texas, but Houston billionaires are not far behind, according to the newForbes 400, a list of the 400 richest people in the United States for 2023.

Houston oil tycoon Jeffery Hildebrand is the eighth-richest Texan, and the 51st most affluent person in the United States, Forbes says.

According to Forbes, Hildebrand's net worth in 2023 is estimated at $13.7 billion, which has steadily climbed from his 2022 net worth of $11 billion. Hildebrand, 64, co-founded Hilcorp Energy Company in 1990, and serves as the chairman and CEO after buying out his partner's stake for $500 million. The company has been hard at work expanding its foothold in the oil industry over the last three decades.

"In 2020 Hilcorp finalized the $5.6 billion acquisition of BP's assets in Alaska," Forbes wrote in Hildebrand's profile. "He has built Hilcorp into America's biggest privately owned oil company (by production volumes)."

As CultureMap reported, in 2015, Hildebrand made headlines when he gifted each of his 1,381 employees a $100,000 holiday bonus.

Forbes' list, published October 3, is a definitive ranking of the wealthiest Americans, using interviews, financial data, and documentation provided by billionaires and their companies.

According to the report, America's elite class is now worth $4.5 trillion total, which ties a record previously set in 2021.

Unsurprisingly, Musk ranks No. 1 nationally, with a net worth of $251 billion.

Here's how the rest of Houston's billionaires fared on this year's list:

  • Houston hospitality king and Rockets owner Tilman Fertitta ranks 114th nationally with an estimated net worth of $8 billion.
  • Oil and gas chairman Richard Kinder ranks No. 123 nationally with an estimated worth of $7.5 billion.
  • Houston pipeline heirs Dannine Avara, Scott Duncan, Milane Frantz, and Randa Duncan Williams tie for 128th nationally. Each has an estimated net worth of $7.4 billion.
  • Toyota mega-dealer Dan Friedkin ties for 184th nationally with an estimated net worth of $5.7 billion.
  • Houston Texans owner Janice McNair ties for No. 192 nationally with an estimated net worth of $5.6 billion.
  • Local hedge fund honcho John Arnold ranks 345th nationally with an estimated net worth of $3.3 billion.
  • Energy exploration chief exec George Bishop of The Woodlands ranks No. 356 with an estimated net worth of $3.2 billion.
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Jeffery and Mindy Hildebrand are noted for their service to employees and community. Photo by Anthony Rathbun

Local billionaires Jeffery Hildebrand and Tilman Fertitta top list of richest in Houston, per Forbes

meet the billionaires

According to Forbes, half of all of the world’s billionaires are less wealthy than they were in 2022. But that’s not the case for most Houston-area billionaires like oil tycoon Jeffery Hildebrand, who was named the richest man in the city.

The 2023 edition of Forbes’ World’s Billionaires List declared Hildebrand’s net worth at $10.2 billion, placing him as the 171st richest person in the world. His fortune is $2.7 billion higher than his 2022 net worth of $7.5 billion, when he ranked No. 316 on the list.

As CultureMap reported, in 2015, Hildebrand made headlines when he gifted each of his 1,381 employees a $100,000 holiday bonus.

Houston’s favorite hospitality mogul and Rockets owner Tilman Fertitta is the city’s second-richest man, with his net worth climbing up to $8.1 billion. He ranked No. 256 on Forbes’ list, substantially higher than his No. 471 rank in 2022 when his net worth was $5.6 billion. Fertitta is surely living life to the fullest after hosting Miami rapper Pitbull at his San Luis Salute celebration earlier this year.

Tilman Fertitta Shut Up and Listen book laughing

Tilman Fertitta is sitting pretty at No. 2. Photo by J. Thomas Ford

Other Houston-area billionaires that made Forbes 2023 world’s richest list are:

  • Pipeline magnate Richard Kinder: tied for No. 317, $7.2 billion, down from $7.5 billion
  • Houston siblings and pipeline heirs Dannine Avara, Scott Duncan, Milane Frantz, and Randa Duncan Williams: all tied for No. 352, $6.8 billion, up from $6.6 billion
  • Toyota mega-dealer Dan Friedkin: tied for No. 466, $5.5 billion, up from $4.3 billion
  • Houston Texans owner Janice McNair: tied for No. 534, $5 billion, up from $4.2 billion
  • Hedge fund honcho John Arnold: tied for No. 878, $3.3 billion, unchanged since 2018
  • Energy exploration chief exec George Bishop: tied for No. 982, $3 billion, up from $2.7 billion
New to the 2023 report is Kamal Ghaffarian, the co-founder and executive chairman of Houston's Axiom Space, with a net worth of $2.1 billion. Though his LinkedIn notes that he is based in Maryland, reports add that he resides in Florida. His Forbes rank is No. 1434.An honorable mention (and billionaire newbie) is Amy Adams Strunk, the controlling owner of the Tennessee Titans and daughter of Houston Oilers owner Bud Adams. She has a residence in Waller (about 40 miles northwest of Houston) and her net worth is $1.7 billion — making her No. 1725 on the list.One name missing from Forbes 2023 report is software entrepreneur Robert Brockman, who passed away last August. Brockman fell from grace after he was charged in the largest tax fraud case in U.S. history in 2020. Forbes listed his 2022 net worth at $4.7 billion. He is survived by his wife, son, and two grandchildren.Elsewhere in Texas, Elon Musk reigns as the richest man in the state and in its capital city of Austin with a net worth of $180 billion. The Tesla and Space-X founder is the second richest person in the world, wedging his way between No. 1 Bernard Arnault of France (overseer of the LVMH empire of 75 fashion and cosmetics brands, including Louis Vuitton and Sephora), with a net worth of $211 billion; and No. 3 Jeff Bezos, the American Amazon founder, worth $114 billion.

Dallas Cowboys owner Jerry Jones'$13.3 billion net worth won him the title of Dallas' richest person, and the 12th richest sports owner on Forbes' "World's Richest Sports Owners 2023." His net worth is up from $10.6 billion last year.

The Fort Worth-based Walmart family heiress Alice Walton earned a spot on Forbes’ list as the third richest woman in the world. Her fortune is pegged at $56.7 billion, down slightly from $65.3 billion last year.

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This article originally ran on CultureMap.

Richard Kinder once again lands on this prestigious list. Photo courtesy of BBVA

11 Houston billionaires join Elon Musk on Forbes' list of the world's richest

mo' money

In the battle of the world’s billionaires, a newly minted Texan comes out on top — and nearly a dozen Houstonians fare quite well.

Forbes magazine’s new ranking of the world’s richest people puts Texas transplant Elon Musk at No. 1, with a net worth of $219 billion. That’s up from $151 billion in 2021, $24.6 billion in 2020, $22.3 billion in 2019, and $19.9 billion in 2018. The CEO of Austin-based vehicle manufacturer Tesla and leader of a host of other businesses, Musk was ranked second on Forbes’ 2021 list. He sat behind Amazon founder Jeff Bezos, whose net worth in 2021 was pegged at $177 million. This year, Forbes estimates Bezos’ net worth is $171 billion.

Here in Houston, 11 locals land on the prestigious list. They are:

  • Oil mogul Jeffery Hildebrand: tied for No. 316, $7.5 billion, up from $2 billion
  • Pipeline magnate Richard Kinder: tied for No. 316, $7.5 billion, up from $7 billion
  • Houston siblings and pipeline heirs Dannine Avara, Scott Duncan, Milane Frantz, and Randa Duncan Williams: each tied for No. 375, $6.6 billion, up from $6 billion
  • Hospitality titan and Houston Rockets owner Tilman Fertitta: tied for No. 471, $5.6 billion, up from $4.6 billion
  • Houston software entrepreneur Robert Brockman: tied for No. 601, $4.7 billion, down from $6 billion
  • Toyota mega-dealer Dan Friedkin: tied for No. 665, $4.3 billion, up from $4.1 billion
  • Houston Texans owner Janice McNair: tied for No. 687, $4.2 billion, up from $4.1 billion
  • Hedge fund honcho John Arnold: tied for No. 913, $3.3 billion, unchanged from last year

Meanwhile, Nearly 30 other Texans appear in this year’s top 1,000. Here, they are grouped by where they live and their global ranking, 2022 net worth, and 2021 net worth.

Austin

  • Elon Musk, founder and CEO of Tesla: No. 1, $219 billion, up from $151 billion
  • Michael Dell, founder, chairman, and CEO of Round Rock-based Dell Technologies: No. 24, $55.1 billion, up from $45.1 billion
  • Venture capitalist Robert Smith: tied for No. 369, $6.7 billion, up from $6 billion
  • Tito’s Vodka baron Bert “Tito” Beveridge: tied for No. 637, $4.5 billion, down from $4.6 billion
  • Tech entrepreneur Thai Lee: tied for No. 709, $4.1 billion, up from $3.2 billion

Dallas

  • Dallas Cowboys owner Jerry Jones: tied for No. 185, $10.6 billion, up from $8.9 billion
  • Banking and real estate kingpin Andy Beal: tied for No. 201, $9.9 billion, up from $7.9 billion
  • Oil and real estate titan Ray Lee Hunt: tied for No. 386, $6.5 billion, up from $4.2 billion
  • Money manager Ken Fisher: tied for No. 509, $5.3 billion, down from $5.5 billion
  • Media magnate and Dallas Mavericks owner Mark Cuban: tied for No. 601, $4.7 billion, up from $4.4 billion
  • Oil and gas guru Trevor Rees-Jones: tied for No. 637, $4.5 billion, up from $4 billion
  • Hotel and investment titan Robert Rowling: tied for No. 637, $4.5 billion, up from $3.9 billion
  • Oil baron W. Herbert Hunt: tied for No. 665, $4.3 billion, up from $2 billion
  • Margot Birmingham Perot: widow of tech and real estate entrepreneur H. Ross Perot Sr., tied for No. 665, $4.3 billion, up from $4.1 billion
  • Oil and gas tycoon Kelcy Warren: tied for No. 728, $4 billion, up from $3.4 billion
  • Real estate bigwig H. Ross Perot, Jr.: tied for No. 951, $3.2 billion, up from $1.6 billion

Fort Worth

  • Walmart heiress Alice Walton: No. 18, $65.3 billion, up from $61.8 billion
  • Oil and investment guru Robert Bass: tied for No. 536, $5.1 billion, unchanged from last year
  • Private equity magnate David Bonderma: tied for No. 637, $4.5 billion, up from $4.1 billion
  • Investor and oilman Sid Bass: tied for No. 883, $3.4 billion, up from $2.9 billion

Elsewhere in Texas

  • Sports and entertainment mogul Stan Kroenke (Vernon): tied for No. 183, $10.7 billion, up from $8.2 billion
  • Walmart heiress Ann Walton Kroenke (Vernon): tied for No. 227, $9 billion, up from $8.4 billion
  • Oil tycoon Autry Stephens (Midland): tied for No. 552, $5 billion, not previously ranked

“The tumultuous stock market contributed to sharp declines in the fortunes of many of the world’s richest,” Kerry A. Dolan, assistant managing editor of Wealth at Forbes, says of this year’s ranking. “Still, more than 1,000 billionaires got wealthier over the past year. The top 20 richest alone are worth a combined $2 trillion, up from $1.8 trillion in 2021.”

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Pipeline mogul and Memorial Park benefactor Richard Kinder (pictured with his wife, Nancy) leads the Houston billionaires. Photo by Michelle Watson/Catchlight Group

Houston billionaires named to Forbes' list of richest Americans for 2019

Seeing dollar signs

Who's the richest person in Texas? That title once again goes to Walmart heiress Alice Walton, of Fort Worth, according to the newly released Forbes 400 ranking. But seven very wealthy Houstonians also appear on the list of the 400 richest people in the country right now.

The top Houstonian on the list is Houston pipeline mogul Richard Kinder, who is tied with another Walmart heiress, Ann Walton Kroenke, for sixth place in Texas and No. 67 nationally. Forbes estimates they're each worth $7.5 billion.

The other Houston billionaires on the list are:

  • Randa Duncan Williams and her siblings Dannine Avara, Scott Duncan, and Milane Frantz, all of whom live in Houston. Each boasts an estimated net worth of $6.3 billion, tying them for the eighth place in Texas and 100th place nationally.
  • Restaurant mogul and Houston Rockets owner Tilman Fertitta, $4.9 billion. Tied for 15th in Texas and No. 140 in U.S.
  • Toyota titan Dan Friedkin, $4 billion. Tied for No. 21 in Texas. Tied for No. 187 in U.S.
  • Houston Texans co-founder Janice McNair, widow of businessman and Texans co-founder Bob McNair, $4 billion. Tied for No. 21 in Texas and No. 187 in U.S.
  • Energy executive Jeffery Hildebrand, $3.8 billion. No. 23 in Texas. Tied for No. 207 in U.S.
  • Former hedge fund manager John Arnold, $3.3 billion. No. 26 in Texas. No. 261 in U.S.
  • Energy mogul George Bishop of The Woodlands, $2.4 billion. Tied for No. 33 in Texas and No. 355 in U.S.

With an estimated net worth at $51.4 billion, Walton is the 11th richest person in the country (and the richest person in the Lone Star State). Second in line is Austin's Michael Dell, founder, chairman, and CEO of Round Rock-based Dell Technologies, who notches a net worth of $32.3 billion, which puts him at No. 18 on the list of America's billionaires. Holding down third place in Texas and 48th in the U.S. is Dallas banker and real estate titan Andy Beal, with an estimated net worth of $9.8 billion.

This year, Dallas Cowboys owner Jerry Jones got muscled out of the No. 4 spot in Texas by Stan Kroenke, whose professional sports holdings include the NFL's Los Angeles Rams. The estimated net worth of Kroenke, who owns a 520,000-acre ranch west of Wichita Falls, is $9.7 billion, compared with $8.6 billion for Jones. That puts Kroenke in 49th place and Jones in 56th place among the richest Americans.

Here are the other Texans who made it onto this year's Forbes 400, in order of ranking:

  • Omni Hotels and Gold's Gym king Robert Rowling of Dallas. $5.5 billion. No. 12 in Texas. Tied for No. 119 in U.S.
  • Oil and gas heir Ray Lee Hunt of Dallas. $5.2 billion No. 13 in Texas. No. 127 in U.S.
  • Venture capital entrepreneur Robert Smith of Austin. $5 billion. No. 14 in Texas. Tied for No. 131 in U.S.
  • Oil heir Robert Bass of Fort Worth. $4.9 billion. Tied for No. 15 in Texas and No. 140 in U.S.
  • Pipeline executive Kelcy Warren of Dallas. $4.3 billion. No. 17 in Texas. Tied for No. 159 in U.S.
  • Vodka tycoon Bert "Tito" Beveridge of Austin. $4.2 billion. Tied for No. 18 in Texas and No. 168 in U.S.
  • Margot Birmingham Perot of Dallas, widow of tech entrepreneur H. Ross Perot. $4.2 billion. Tied for No. 18 in Texas and No. 168 in U.S.
  • Tech entrepreneur and Dallas Mavericks owner Mark Cuban of Dallas. $4.1 billion. No. 20 in Texas. Tied for No. 179 in U.S.
  • Private equity giant David Bonderman of Fort Worth. $3.7 billion. Tied for No. 24 in Texas and No. 217 in U.S.
  • Oil and gas chief Trevor Rees-Jones of Dallas. $3.7 billion. Tied for No. 24 in Texas and No. 217 in U.S.
  • Investor and oil heir Sid Bass of Fort Worth. $3.1 billion. Tied for No. 27 in Texas and No. 275 in U.S.
  • John Paul DeJoria of Austin. $3.1 billion. Tied for No. 27 in Texas and No. 275 in U.S.
  • Tech entrepreneur Thai Lee of Austin. $3 billion. Tied for No. 29 in Texas and No. 287 in U.S.
  • Software entrepreneur Joe Liemandt of Austin. $3 billion. Tied for No. 29 in Texas and No. 287 in U.S.
  • Oil heir W. Herbert Hunt of Dallas. $2.6 billion. Tied for No. 31 in Texas and No. 333 in U.S.
  • Investor and former grocery distributor Drayton McLane Jr. of Temple. $2.6 million. Tied for No. 31 in Texas and No. 333 in U.S.
  • Hearing-aid titan Bill Austin of Brownsville. $2.4 billion. Tied for No. 33 in Texas and No. 355 in U.S.
  • Energy entrepreneur and Texas Rangers co-owner Ray Davis of Dallas. $2.3 billion. Tied for No. 35 in Texas and No. 363 in U.S.
  • Big-time banker Gerald Ford of Dallas. $2.3 billion. Tied for No. 35 in Texas and No. 363 in U.S.
  • Oil heir Edward Bass of Fort Worth. $2.2 billion. Tied for No. 37 in Texas and No. 370 in U.S.
  • Oil heir Lee Bass of Fort Worth. $2.2 billion. Tied for No. 37 in Texas and No. 370 in U.S.
  • Real estate developer H. Ross Perot Jr. of Dallas. $2.2 billion. Tied for No. 37 in Texas and No. 370 in U.S.
  • Private equity entrepreneur Brian Sheth of Austin. $2.2 billion. Tied for No. 37 in Texas and No. 370 in U.S.
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Generation Park lands new facility to scale xeno-organ production

Organ innovation

Maryland-based United Therapeutics Corp. has opened a new 77,448-square-foot facility to manufacture xeno-organs in Northeast Houston’s growing biotech hub, Generation Park.

The new Houston location is United Therapeutics’ third Designated Pathogen-Free (DPF) site, named for transplant pioneers Dr. Bartley P. Griffith and Dr. Robert A. Montgomery. The company says the new facility will enable it to scale commercial production of its xeno-organs once they receive regulatory approval.

An existing DPF facility in Virginia is supporting clinical trials for the xeno-organs, and a third site in Minnesota will also focus on commercialization with the Houston site, according to the company.

Xeno-organs are organs taken from a non-human animal source and transplanted, implanted or infused into a human recipient.

Currently, United Therapeutics is advancing clinical trials to support a Biologics License Application with the U.S. Food and Drug Administration for its investigational-stage xenotransplantation, UKidney, UThymoKidney and UHeart products. The products all involve working with the genes from humans and pigs.

In 2025, Chron.com reported the company was working to construct an estimated $96 million facility to breed genetically engineered animals. Head of investor relations at United Therapeutics Dewey Steadman told the Houston Business Journal in 2025 that the pigs’ DNA will be edited. In November 2024, a 53-year-old woman in Alabama received a transplanted kidney from UKidney that had 10 gene edits. She had the transplant removed in April 2025, after her body rejected it.

The Dr. Bartley P. Griffith and Dr. Robert A. Montgomery Xenograft Production Facility requires a “strictly controlled, biosecure barrier environment, including air filtration, filtered water, filtered feed supplies, and state-of-the-art decontamination entryways,” according to the company. Being pathogen-free means it includes calibrated air and water conduits to support the transplantability of xenograft products and to prevent contamination. For energy considerations, the building also features solar arrays.

“With our third xenograft production facility now open and clinical trials underway, United Therapeutics is moving closer to its goal of providing transplantable organs to the people who need them,” Martine Rothblatt, chairperson and CEO of United Therapeutics, said in a news release. “It is fitting that this facility is named for Dr. Griffith and Dr. Montgomery, whose first-in-human surgeries turned xenotransplantation from a theoretical possibility into a clinical reality.”

The facility, which wrapped construction in August, is located at 11848 Common Dock Dr. in Generation Park, which will house manufacturing sites for pharmaceutical heavyweights Bristol Myers Squibb and Eli Lilly. Last fall, Eli Lilly tapped Generation Park for its $6.5 billion manufacturing plant, and Bristol Myers Squibb made a $2.3 billion investment in August to bring its state-of-the-art site to the master-planned commercial district.

Elon Musk's SpaceX reports profit as AI and satellite businesses booms

Booming Business

SpaceX reported a bigger quarterly profit than expected on Tuesday, October 20, as its satellite communications and artificial intelligence businesses boomed.

The company, run by Elon Musk, posted a profit for the three months through September 2026 of $4.4 billion, or 35 cents per share, reversing a year-ago loss and easily topping Wall Street's expectations. Revenue soared to $14.6 billion, up 161%.

On a conference call with analysts, Musk suggested a merger with his electric car company Tesla might be in the works, something that has been rumored for months. He said both companies formed “special committees” of independent directors to discuss the issue, though he played down the chances of an imminent deal.

“Some people out there assume that a SpaceX and Tesla merger is a certainty,” he said. “I think that would be overstating it.”

The AI business became SpaceX's largest by revenue in the third quarter, although the Starlink satellite service remains the biggest profit generator.

“They beat across all metrics and the Starlink business looks to be accelerating,” said Dan Ives, an analyst at Yorkville Ives. “This is just what (Wall) Street wanted.”

The stock rose 7.5% in after-hours trading.

Musk also told analysts that for next month's launch of its Starship rocket, SpaceX will attempt to grab both the booster and ship with mechanical arms upon return to base, a key step toward demonstrating it can reuse the massive spacecraft.

“The only way that we can extend consciousness beyond Earth on a sustained basis is with a fully reusable orbital launch vehicle,” Musk said, calling the attempt, if successful, “a massive technology milestone.”

SpaceX hopes to get Starship on a regular launch pattern in preparation for NASA's upcoming lunar missions.

The company already has huge contracts with the federal government, and House Democrats have called for investigations into those contracts and Musk’s work with the Department of Government Efficiency. Musk has spent $276 million since July in support of Republican candidates.

In a filing for its initial public offering in June, SpaceX warned that a change in control of Congress could have a “material and adverse impact on our growth and competitive position.”

Musk recently drew criticism from politicians in Washington after speeds for a military version of SpaceX's satellite communications service were slowed for Ukraine following President Donald Trump's deal to get more diesel oil from Russia amid a push to end the war. The Wall Street Journal reported Tuesday that it was Musk who ordered the slowdown, impeding Ukraine’s use of drones along the front. SpaceX did not immediately respond to an Associated Press request for comment on the Journal story.

Both Trump and Musk have denied responsibility for the slowdown.

As midterm elections near, Musk on Monday promised to give one share of SpaceX to “every kid in America” next year, though he provided no details on how the distribution would be carried out. With communities nationwide protesting the construction of large data centers and concerns about AI safety, AI companies are trying to build goodwill. Anthropic pledged to commit 5% of its shares to a new “public benefit” fund.

SpaceX shares have been under pressure over concerns that the company was spending too much on major projects to compete with rivals such as Anthropic. The company said capital expenditures totaled $19.6 billion last quarter, nearly triple the figure from a year earlier, and it forecast spending would grow to $35 billion to $40 billion in the current quarter.

Shares of SpaceX closed Tuesday at $147.79, down from a peak near $201 after its IPO, which made Musk the world’s first trillionaire at the time. But the share prices for SpaceX and Tesla have since dropped, reducing his net worth to $925 billion, according to Forbes magazine.

Tesla reports third-quarter financial results Wednesday. Last week, Tesla unveiled a new Roadster sports car that in some versions may include thrusters allowing it to briefly fly using SpaceX technology — though experts say anything usable for drivers is a long shot.

These 5 trailblazing Houston startups are leading the energy transition

meet the finalists

Houston is home to a growing number of startups reshaping what it means to be called the "Energy Capital of the World."

As part of the 2026 Houston Innovation Awards, our Energy Transition Business category honors those innovative startups that are providing solutions within renewables, climatetech, clean energy, alternative materials, circular economy and more.

Five clean energy startups have been named finalists for the 2026 award. The finalists, selected by our esteemed panel of judges, range from a lower-emission steel producer to a diagnostics platform developer working to support batteries used in data centers.

Read more about these innovative businesses, their initiatives, and their inspirational founders below. The 2026 winners will be announced on InnovationMap.com in mid-November.

Capwell Services

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 CEO Andrew Lane. It has since participated in programs with Greentown Labs, the Rice Clean Energy Accelerator and the Creative Destruction Lab Energy Cohort at Texas A&M University. The company moved to Houston in 2023 and raised a pre-seed round. It deployed two commercial units this year, according to its application.

FlowCellutions

Energytech startup FlowCellutions is developing a chemistry-agnostic diagnostics platform for flow and metal-air batteries supporting data centers and critical infrastructure. The platform is designed to help reduce operating costs, prevent failures and costly downtime, and extend battery lifetime from approximately seven years to more than 30 years. It has deployed four paid pilots and plans to take insights from the programs to develop its next-gen sensor platform technology.

CEO Becca Segel founded the company in 2022. It is a member of Greentown Labs, and Segel was a 2025 Activate Fellow. The company has raised over $2 million in non-dilutive funding and received a $1.5 million NSF SBIR Fast-Track award earlier this year.

Hertha Metals

Hertha Metals produces lower-cost, lower-emission steel and high-purity iron. The company has developed a single-step process that uses natural gas as a direct reductant instead of metallurgical coal, which cuts production costs by more than 25 percent and emissions by up to 50 percent, according to the company. The same process produces high-purity iron needed for high-purity steels and rare earth magnets. The company says it aims to "re-industrialize America’s production of critical materials."

Hertha Metals was founded by CEO Laureen Meroueh in 2022 and emerged from stealth last year with more than $17 million in venture capital funding. The company closed a $133.65 million Series A this month and also broke ground on its $100M high-purity iron factory known as Chalyx in Conroe.

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.

Founded in 2019 by CEO Aaron Fitzgerald, CTO Kristian Gubsch, and vice president of operations Trey Sheridan, the company has secured over $7.2M in financing and is backed by Bill Gates’ Breakthrough Energy, Shell, Black & Veatch, and other organizations. It won in the Minority-founded Business Category in last year's Houston Innovation Awards.

Solidec

Chemical manufacturing company Solidec has developed autonomous generators that extract molecules from water and air and convert them into pure chemicals and fuels that are free of carbon emissions on-site, 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 an advisor, CEO Ryan DuChanois, and CTO Yang Xia. It closed a $2.5 million seed round in 2025.