Fannin Innovation Studio's substance use disorder drug will be evaluated by the National Institute of Drug Abuse. Photo via Getty Images

Fannin Innovation Studio, a Houston-based biotech company, is teaming up with a federal agency to test the company’s leading candidate for treatment of substance abuse disorders.

The Addiction Treatment Discovery Program within the National Institute of Drug Abuse will evaluate the drug, known as 11h. Fannin says it’s keeping all intellectual property, proprietary, and commercialization rights for 11h. Fannin’s Goldenrod Therapeutics portfolio startup, founded in 2020, is overseeing development of the drug.

The federal agency’s “active engagement will accelerate our program and provide an additional independent assessment of 11h as we advance it towards clinical development,” Dr. Atul Varadhachary, managing partner at Fannin, says in a news release.

Fannin’s 11h is part of an array of compounds developed by Corey Hopkins, a professor in the Department of Pharmaceutical Sciences at the University of Nebraska Medical Center in Omaha. Fannin licensed 11h in June 2020.

“11h has the potential to significantly supplement [the] current standard of care in a number of substance use disorders, some of which currently lack any approved pharmaceutical treatment options,” says Dr. Dev Chatterjee, managing director at Fannin.

Last year, Varadhachary told InnovationMap that “the one single thing” Houston could do to boost its chances for success in life sciences, particularly in therapeutics, would be to rev up the cultivation of entrepreneurial talent.

“By and large, I don’t think know that this community appreciates how important and how under-resourced that whole people-development piece is,” he says. “It’s not something that comes from taking classes or watching. It comes from doing.”

This week's roundup of Houston innovators includes Emily Reiser of Texas Medical Center Innovation, Atul Varadhachary of Fannin Innovation Studio, and Vicki Knott of Crux OCM. Courtesy photos

3 Houston innovators to know this week

who's who

Editor's note: In this week's roundup of Houston innovators to know, I'm introducing you to two local innovators, as well as one honorary Houstonian, across industries — energy, health care, and more — recently making headlines in Houston innovation.

Emily Reiser, senior manager for innovation community and engagement for Texas Medical Center Innovation

Emily Reiser joins the Houston Innovators Podcast to discuss the latest at TMC Innovation. Photo courtesy of TMC Innovation

Over her past few years at Texas Medical Center Innovation, Emily Reiser has worked with over 1,000 startups. So, it's safe to say she knows what a good pitch looks like and what health tech startups need as far a support from mentors and experts goes.

She shares some of her advice and observations on this week's episode of the Houston Innovators Podcast. She also explains how TMC Innovation is uniquely positioned to advance the best and brightest in life science innovation.

"When we think about how a startup is going to be successful, we think about how they are going to build new partnerships. But we also think about all the people they're going to need to activate and bring them to the next level," Reiser says. "What we do is curate a community of high-value resources that can help these companies elevate to that next level." Click here to read more.

Atul Varadhachary, managing partner of Houston's Fannin Innovation Studio

Atul Varadhachary, managing partner of Fannin Innovation Studio, says that now is the time to invest in life sciences. Photo via fannininnovation.com

Fannin Innovation Studio is hard at work finding, supporting, and accelerating life science innovations, but, according to Managing Partner Atul Varadhachary, the organization can be doing so much more — if only the budget allowed.

Varadhachary makes a case for tripling or even quadrupling the number of participants in Fannin's federally accredited fellowship program. He says this one relatively small investment could push Houston closer to Boston in the life sciences stratosphere.

"I can think of nothing that could give a bigger return on investment for the city," Varadhachary says of expanding Fannin's fellowship program. Click here to read more.

Vicki Knott, co-founder and CEO of Crux OCM

A Canadian software company is expanding its presence in Houston to meet the needs of its clients. Photo courtesy of Crux OCM

For six months of the year, Vicki Knott plans to take up residence in Houston. As the co-founder and CEO of Calgary-based Crux OCM, Knott saw a big opportunity to expand her control room operations automation software business — especially when she nabbed Houston-based Phillips 66 as a client.

Calgary and Houston have a lot in common, Knott says, and she sees a very natural connection to the two regions. Knott plans to work six months of the year in Houston with the local office.

"A lot of the companies that head offices in Houston, they have head offices in Calgary," she says. "If a startup in Houston is getting traction, I think there's a natural movement to start in the Calgary market and vice versa." Click here to read more.

Atul Varadhachary, managing partner of Fannin Innovation Studio, says that now is the time to invest in life sciences. Photo via Getty Images

Innovation studio aims to put Houston on the map for life science startup development

fostering innovation

In a report last year from commercial real estate services company JLL, Boston took the crown for hosting the country's top life sciences ecosystem. Houston ranked 11th.

The difference between Houston and Boston "is not the innovation, it's not the technology, it's not the money. It's that we don't have experienced life sciences entrepreneurs," says Dr. Atul Varadhachary, managing partner of Houston's Fannin Innovation Studio, a for-profit entity that commercializes biotech and medtech concepts.

Fannin has tried to replicate Boston's robust life sciences ecosystem "in a really, really tiny way" via its fellowship program, Varadhachary says. But the reach of the program could be even greater, he believes.

Varadhachary makes a case for tripling or even quadrupling the number of participants in Fannin's federally accredited fellowship program. He says this one relatively small investment could push Houston closer to Boston in the life sciences stratosphere.

Atul Varadhachary is the managing partner of Houston's Fannin Innovation Studio. Photo via fannininnovation.com

To be sure, Houston is no slouch in life sciences. For instance, commercial real estate services company CBRE issued a report last fall ranking Houston second among the country's top emerging clusters for life sciences. But cities like Boston, San Francisco, and San Diego still reign as life sciences royalty in the U.S.

Fannin typically taps five people at a time — folks who've recently earned a master's degree, medical degree or PhD — for a two-year fellowship in life sciences entrepreneurship and commercialization. The initiative is comparable to a post-doctorate program in research or medicine. The Fannin fellows collaborate with therapeutics and medical device companies in the studio's portfolio, gaining hands-on training in facets of business like R&D, intellectual property, regulatory matters, and financing.

Today, five fellows and seven interns work at Fannin. The fellowship program launched in 2006; the internship program started a year earlier. In all, Fannin has welcomed more than 250 fellows and interns. Some of them have gone on to work at Houston organizations such as TMC Innovation, MD Anderson Cancer Center, and the University of Houston.

Varadhachary believes boosting the fellowship headcount to perhaps 15 instead of the current five would be a small price to pay to help elevate Houston's status in life sciences. The full cost of each fellowship is less than $100,000 a year, so bringing aboard another 10 fellows would require an extra annual commitment of under $1 million. That kind of money isn't in Fannin's budget, though.

"I can think of nothing that could give a bigger return on investment for the city," Varadhachary says of expanding Fannin's fellowship program.

More fellows would mean more entrepreneurs equipped to run or start life sciences businesses in Houston, he says. Varadhachary acknowledges the value of efforts like the soon-to-open TMC3 life sciences hub and the recently opened Ion entrepreneurship hub, but he'd like to see more emphasis placed on nurturing people and not just startups.

Varadhachary says the "the one single thing" that Houston could do to increase its probability of success in life sciences, particularly in therapeutics, would be to crank up cultivation of entrepreneurial talent.

"By and large, I don't think know that this community appreciates how important and how under-resourced that whole people-development piece is," he says. "It's not something that comes from taking classes or watching. It comes from doing."

Andrea Letkeman, director of professional development at Fannin, says the fellows initially work one-on-one with a senior executive on projects, then eventually graduate to running their own projects. Fellows also get a close-up look at other projects underway at Fannin.

Varadhachary wants to get Fannin fellows excited "about what we're doing in Houston, and then give them an opportunity to be part of our ecosystem."

Some Fannin fellows have been hired on a full-time basis by the studio, or they've moved into jobs at venture capital firms, life sciences startups, or other players in the ecosystem, according to Letkeman. She says the fellows lend "energy and vibrancy" to Fannin.

"I think that the Fannin model is fairly unique for Houston. There are models that are similar, across the country, to what we do. But there's not enough of them, quite frankly, for the number of people that are interested in these kinds of roles," Letkeman says.

"There is talent that is looking for a way to bridge the gap between academia and real-world commercialization," she adds. "There's just not enough opportunities out there for them."

Re:3D is one of two Houston companies to be recognized by the SBA's technology awards. Photo courtesy of re:3D

2 Houston startups win national technology award from SBA

winner, winner

A couple of Houston startups have something to celebrate. The United States Small Business Administration announced the winners of its Tibbetts Award, which honors small businesses that are at the forefront of technology, and two Houston startups have made the list.

Re:3D, a sustainable 3D printer company, and Raptamer Discovery Group, a biotech company that's focused on therapeutic solutions, were Houston's two representatives in the Tibbetts Award, named after Roland Tibbetts, the founder of the SBIR Program.

"I am incredibly proud that Houston's technology ecosystem cultivates innovative businesses such as re:3D and Raptamer. It is with great honor and privilege that we recognize their accomplishments, and continue to support their efforts," says Tim Jeffcoat, district director of the SBA Houston District Office, in a press release.

Re:3D, which was founded in 2013 by NASA contractors Samantha Snabes and Matthew Fiedler to tackle to challenge of larger scale 3D printing, is no stranger to awards. The company's printer, the GigaBot 3D, recently was recognized as the Company of the Year for 2020 by the Consumer Technology Association. Re:3D also recently completed The Ion Smart and Resilient Cities Accelerator this year, which has really set the 20-person team with offices in Clear Lake and Puerto Rico up for new opportunities in sustainability.

"We're keen to start to explore strategic pilots and partnerships with groups thinking about close-loop economies and sustainable manufacturing," Snabes recently told InnovationMap on the Houston Innovators Podcast.

Raptamer's unique technology is making moves in the biotech industry. The company has created a process that makes high-quality DNA Molecules, called Raptamers™, that can target small molecules, proteins, and whole cells to be used as therapeutic, diagnostic, or research agents. Raptamer is in the portfolio of Houston-based Fannin Innovation Studio, which also won a Tibbetts Award that Fannin Innovation Studio in 2016.

"We are excited by the research and clinical utility of the Raptamer technology, and its broad application across therapeutics and diagnostics including biomarker discovery in several diseases, for which we currently have an SBIR grant," says Dr. Atul Varadhachary, managing partner at Fannin Innovation Studio.

This year, 38 companies were honored online with Tibbetts Awards. Since its inception in 1982, the awards have recognized over 170,000 honorees, according to the release, with over $50 billion in funding to small businesses through the 11 participating federal agencies.

Allterum Therapeutics Inc., a portfolio company of Fannin Innovation Studio, is using the funds to prepare for clinical trials. Photo via Getty Images

Houston biotech startup raises millions to battle pediatric cancer

fresh funds

Allterum Therapeutics Inc. has built a healthy launchpad for clinical trials of an immunotherapy being developed to fight a rare form of pediatric cancer.

The Houston startup recently collected $1.8 million in seed funding through an investor group associated with Houston-based Fannin Innovation Studio, which focuses on commercializing biotech and medtech discoveries. Allterum has also brought aboard pediatric oncologist Dr. Philip Breitfeld as its chief medical officer. And the startup, a Fannin spinout, has received a $2.9 million grant from the Cancer Prevention Research Institute of Texas.

The funding and Breitfeld's expertise will help Allterum prepare for clinical trials of 4A10, a monoclonal antibody therapy for treatment of cancers that "express" the interleukin-7 receptor (IL7R) gene. These cancers include pediatric acute lymphoblastic leukemia (ALL) and some solid-tumor diseases. The U.S. Food and Drug Administration (FDA) has granted "orphan drug" and "rare pediatric disease" designations to Allterum's monoclonal antibody therapy.

If the phrase "monoclonal antibody therapy" sounds familiar, that's because the FDA has authorized emergency use of this therapy for treatment of COVID-19. In early January, the National Institute of Allergy and Infectious Diseases announced the start of a large-scale clinical trial to evaluate monoclonal antibody therapy for treatment of mild and moderate cases of COVID-19.

Fannin Innovation Studio holds exclusive licensing for Allterum's antibody therapy, developed at the National Cancer Institute. Aside from the cancer institute, Allterum's partners in advancing this technology include the Therapeutic Alliance for Children's Leukemia, Baylor College of Medicine, Texas Children's Hospital, Children's Oncology Group, and Leukemia & Lymphoma Society.

Although many pediatric patients with ALL respond well to standard chemotherapy, some patients continue to grapple with the disease. In particular, patients whose T-cell ALL has returned don't have effective standard therapies available to them. Similarly, patients with one type of B-cell ALL may not benefit from current therapies. Allterum's antibody therapy is designed to effectively treat those patients.

Later this year, Allterum plans to seek FDA approval to proceed with concurrent first- and second-phase clinical trials for its immunotherapy, says Dr. Atul Varadhachary, managing partner of Fannin Innovation Studio, and president and CEO of Allterum. The cash Allterum has on hand now will go toward pretrial work. That will include the manufacturing of the antibody therapy by Japan's Fujifilm Diosynth Biotechnologies, which operates a facility in College Station.

"The process of making a monoclonal antibody ready to give to patients is actually quite expensive," says Varadhachary, adding that Allterum will need to raise more money to carry out the clinical trials.

The global market for monoclonal antibody therapies is projected to exceed $350 billion by 2027, Fortune Business Insight says. The continued growth of these products "is expected to be a major driver of overall biopharmaceutical product sales," according to a review published last year in the Journal of Biomedical Science.

One benefit of these antibody therapies, delivered through IV-delivered infusions, is that they tend to cause fewer side effects than chemotherapy drugs, the American Cancer Society says.

"Monoclonal antibodies are laboratory-produced molecules engineered to serve as substitute antibodies that can restore, enhance or mimic the immune system's attack on cancer cells. They are designed to bind to antigens that are generally more numerous on the surface of cancer cells than healthy cells," the Mayo Clinic says.

Varadhachary says that unlike chemotherapy, monoclonal antibody therapy takes aim at specific targets. Therefore, monoclonal antibody therapy typically doesn't broadly harm healthy cells the way chemotherapy does.

Allterum's clinical trials initially will involve children with ALL, he says, but eventually will pivot to children and adults with other kinds of cancer. Varadhachary believes the initial trials may be the first cancer therapy trials to ever start with children.

"Our collaborators are excited about that because, more often than not, the cancer drugs for children are ones that were first developed for adults and then you extend them to children," he says. "We're quite pleased to be able to do something that's going to be important to children."

Pulmotect, a clinical-stage biotechnology company based in Houston, is testing a drug that could be useful in mitigating the threats of the coronavirus, which is currently been recognized as a global health emergency. Getty Images

Houston biotech company is creating a drug that could fight the coronavirus

Med tech

A drug being developed by a Houston biopharmaceutical company eventually could help combat what the World Health Organization has proclaimed a global health emergency.

Experiments conducted by clinical-stage biotechnology company Pulmotect Inc. show its PUL-042 inhaled drug has proven effective in protecting mice against two types of coronavirus: severe acute respiratory syndrome (SARS) and Middle East respiratory syndrome (MERS). Researchers performed those tests at the University of Texas Medical Branch at Galveston.

In the Galveston experiments, a single inhaled dose of PUL-042 protected lab mice from the SARS virus, and it greatly reduced the amount of virus in their lungs after the mice became infected with SARS or MERS.

"With the risks of virulent coronaviruses and other threats increasing, as shown by the recent outbreak in Wuhan that has already spread from China to other countries including the United States, Pulmotect is optimistic that its immune-stimulating technology could be useful in mitigating the threats of current and emerging pathogens and protecting vulnerable populations," says CEO Dr. Colin Broom in a news release.

The ability of PUL-042 to ward off the newest type of coronavirus, 2019-nCoV, hasn't been tested yet. However, the drug eventually could help prevent the new virus from spreading, says Broom, who joined Pulmotect as CEO last fall. A separate study would be required to evaluate PUL-042 in patients exposed to 2019-nCoV, he says.

"PUL-042 has the potential to prevent and treat respiratory complications in many high-risk patient populations, including those where no effective therapies are currently available, as is the case with the current coronavirus outbreak," Brenton Scott, president and chief operating officer of Pulmotect, says in the release.

Since its discovery in late December 2019 in Wuhan, China, nearly 9,800 people around the world were infected with 2019-nCoV as of January 31, The New York Times reported. Of those people, more than 200 died. On January 30, the World Health Organization (WHO) declared the virus outbreak a global health emergency.

No specific treatment or cure for 2019-nCoV virus is available. This virus is among seven known coronaviruses.

Symptoms of the Wuhan coronavirus include fever, cough, and shortness of breath, according to the U.S. Centers for Disease Control and Prevention (CDC). The virus can cause pneumonia, SARS, kidney failure, or even death, the Virginia Department of Health says.

PUL-042 "would be a great tool to have available for future outbreaks and epidemics, in addition to being used more routinely for more common infections," Broom says.

Fighting coronaviruses is a potential byproduct of PUL-042.

Initially, Pulmotect is focusing development of PUL-042 on the prevention and treatment of respiratory complications suffered by cancer patients with suppressed immune systems. Phase 1 clinical trials already have taken place in the U.S., and Phase 2 clinical trials are scheduled for later this year.

A separate trial of PUL-042 is underway in London. There, the drug is being tested on patients with chronic obstructive pulmonary disease (COPD) who are prone to lung infections. COPD is an inflammatory disease that blocks airflow from the lungs. People with COPD face a heightened risk of conditions like heart disease and lung cancer, the Mayo Clinic says.

Broom says PUL-042 is a few years away from being considered for approval by the U.S. Food and Drug Administration (FDA).

To date, Pulmotect has raised more than $28 million in outside funding. Founded in 2007, Pulmotect emerged from Houston's Fannin Innovation Studio, which nurtures early stage companies in the life sciences sector.

Patents for PUL-042, invented by MD Anderson Cancer Center and Texas A&M University, have been issued in nine countries.

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Houston ranks among world’s top 30 emerging startup ecosystems

Startup Status

Long known as the Energy Capital of the World, Houston also ranks among the world’s top 30 emerging startup ecosystems, according to a new report.

The report from Startup Genome, a research and advisory organization, doesn’t assign a specific numeric ranking to Houston’s startup ecosystem. Rather, it puts Houston in the ranking range of 21 to 30 for emerging ecosystems. Startup Genome weighed factors such as early-stage funding, performance and talent to identify the top emerging ecosystems.

Houston also gained notice for being one of the world’s 20 emerging ecosystems with at least four unicorn startups in the past 10 years. Houston and nine other ecosystems each had four unicorns.

According to StartupBlink, a startup research platform, Houston’s startup ecosystem grew 24 percent in 2025, with over 1,300 startups and total startup funding exceeding $808 million. StartupBlink places Houston at No. 46 among the world’s top 100 startup ecosystems.

In a recent post on LinkedIn, David Horsup, executive in residence at the Rice Alliance Clean Energy Accelerator, wrote that Houston “has all the ingredients to be wildly successful if it stays true to its differentiated pillars that drive the economy — energy, medical, and aerospace.”

Mumbai topped Startup Genome’s list of emerging ecosystems, followed by Istanbul, Madrid, Salt Lake City-Provo and Barcelona. After Salt Lake City-Provo, the top U.S. ecosystems were Phoenix, Detroit, Minneapolis and Las Vegas.

Silicon Valley led Startup Genome’s ranking of the world’s top established ecosystems, followed by New York City, London, Tel Aviv and Boston. Austin landed at No. 18 in this category and Dallas at No. 27.

“For much of the past decade, this report has chronicled the welcome dispersion of opportunity beyond the traditional hubs,” Startup Genome writes. “That trend has not died — but it has been complicated. Capital and scale are consolidating once more, particularly in the United States, and the gap between leading and emerging ecosystems is widening.”

KBR names C-suite duo to lead $5.3B government services spinoff

new leaders

In advance of the spinoff of its Mission Technology Solutions unit, Houston-based KBR has made two C-suite hires for the new business.

Michael LaRouche is coming aboard as president and CEO of the spinoff, currently called SpinCo, on Sept. 26. Nicholas Veasey is joining as executive vice president and chief financial officer on July 1.

“Michael and Nick bring a highly complementary combination of operational leadership, financial expertise, and mission-driven experience, and together they will accelerate our impact for stakeholders,” Stuart Bradie, chairman, president and CEO of publicly traded KBR, said in a news release.

LaRouche currently is CEO of Serco North America, a Herndon, Virginia-based government services contractor. Veasey most recently was CFO of MAG Aerospace, a Fairfax, Virginia-based defense contractor.

SpinCo, a government services contractor, will launch with more than $5.3 billion in annual revenue and 20,000 employees. KBR’s total headcount is around 36,000. Branding for SpinCo, including a formal name, will be revealed in July.

“SpinCo is positioned as a top-tier provider of differentiated technology solutions, anchored by deep mission expertise, global scale, and a relentless commitment to delivering for our customers,” LaRouche says.

After the spinoff, the slimmed-down KBR will focus on its Sustainable Technology Solutions business, a provider of energy and industrial technology that generated $2.5 billion in revenue in 2025. Bradie will remain chairman, president and CEO of the business.

Both SpinCo and the new KBR will be public companies. The spinoff is scheduled to be completed in January.

Experts: Houston's VC ecosystem has set the foundation — now we need scale

guest column

Fervo Energy went public earlier this summer. The Houston geothermal company priced its IPO at $27 per share, raised $1.89 billion, and opened the next morning at a market capitalization north of $10 billion. By most measures, it is the largest venture-backed cleantech IPO in history and an unambiguous win for Houston. It’s also a useful moment to look at where Houston's venture ecosystem stands and where it can go. The highlight: Houston's venture ecosystem has real foundations and, with increased company formation activity, can grow into the scale our city's ambitions deserve.

A Houston energy story in the national recovery

The recent uptick in Houston venture activity follows national trends. U.S. venture deal count contracted roughly 22 percent from its 2021 peak through 2024 before rebounding to about 16,700 rounds in 2025. Houston's 23 percent increase in VC funding from 2023 to 2024 is part of a national recovery of comparable magnitude over the same time window.

The energy sector is where Houston exhibits unique trends—and where the story turns clearly positive. (Houston's strong health and space sectors deserve their own separate consideration.) By deal count, energy-related rounds have accounted for 15 to 20 percent of Houston activity, roughly consistent over the past few years.

By capital, energy's share surged from about 14 percent in 2023 to over 60 percent in 2025, driven by a small number of large Houston-headquartered rounds, primarily in geothermal and related technologies. Fervo is the obvious anchor, but Sage Geosystems, Quaise Energy, Zeta Energy, Vaulted Deep, Applied Carbon and Mariana Minerals have all closed meaningful rounds. Houston is concentrated and accelerating as an energy capital market, an invaluable position to build upon.

From foundation to scale

The institutional pieces are in place. Greentown Labs, Activate, the Ion and others have built sector-specialized infrastructure most cities would struggle to assemble. Fervo itself is an alum of both Activate and Greentown Labs. Mercury Fund closed its $160 million Fund V, its largest ever. Houston Angel Network, GOOSE Capital, Fathom Fund, and broader pre-seed and seed capital coverage are here. The Houston $10 million-plus Series A list now includes 40 rounds since 2021, which break roughly into two eras. While 2021 to 2022 was biotech-heavy, with companies like Sporos Bioventures, RadioMedix, Cellenkos and Coya Therapeutics, 2024 to 2025 has tilted clearly toward energy, climate, and critical minerals, with Vaulted Deep, Applied Carbon, Mariana Minerals, Sage Geosystems and Ignis H2 Energy among them.

What’s less developed is the volume of seed-stage companies flowing into that capital. Imagine a dozen more Fervos coming out of that infrastructure over the next decade, each generating jobs, recycled founder capital, and the next wave of operators and angel investors. That is the kind of opportunity Houston has within reach if we build the company-formation pipeline to feed it. To be relevant on the national stage as a venture market, and to drive an economy the size of Houston's into the 2030s, the city needs to be doing closer to 20 Series A rounds per month rather than per year. That throughput implies roughly 1,000 seed rounds per year, feeding the funnel at a 20 percent to 30 percent graduation rate. Reaching such throughput depends on how many new founders Houston produces and how quickly our innovation ecosystem can help them achieve lift-off.

Houston in context

The comparative picture brings the scaling challenge into focus. Between 2021 and 2024, Houston-area startups closed between 126 and 153 disclosed venture rounds per year, against a national count between 9,854 and 14,125. That places Houston at a little over 1 percent of the U.S. deal count. For comparison, Austin ran about three times Houston's deal count each year.

At the Series A level, Houston closed between 12 and 24 rounds in any given year. The median Houston Series A across the period was about $10.7 million, compared with $15.4 million in San Francisco. Houston founders are raising fewer and smaller Series A rounds than founders in peer metros, which points directly to where Houston has the most room to grow.

The unicorn picture tells the same story. From 2021 through 2025, the U.S. produced 590 venture-backed unicorns. Four were Houston-based: Solugen and Axiom Space in 2021, Cart.com in 2023, and Fervo Energy in 2024. Adding HighRadius from 2020 brings Houston's all-time total to five. Austin added 19 over the same five-year window. The path from here is to make Houston's entries on lists like these less the exception and more the rule.

Where this leads

Houston has a real opportunity to become the deepest, most credible energy and climate capital market in the country, with the company formation, talent and operator density to support it. The data shows the foundation is already in place. Fervo, Solugen and the growing roster of energy-adjacent Series A graduates are proof. Fervo's IPO is the first of what should be many. Houston has not had a venture-backed cleantech liquidity event of this scale before, and the city now has one to reference, recruit against and build on. With increased company formation at the seed and pre-seed stages, a Fervo-scale outcome need not be a generational event in Houston, but instead, it can become part of a chain reaction powering the city's economy.

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Stephanie T. Schmidt, PhD, is the founder of a stealth startup, a Venture Fellow at Energy Transition Ventures, and an Executive MBA candidate at Rice University's Jones Graduate School of Business. Lawson Gow is the Chief Operating Officer of Greentown Labs. The full Houston VC landscape report is available at Energy Transition Ventures and CleanTech.Org.

Sources: Crunchbase, PitchBook-NVCA, Carta