Houston’s 10 most valuable startups revealed in new report

by the numbers

Houston's top startups by valuation range from e-commerce startups to a geothermal pioneer. Photo via Getty Images

The Greater Houston Partnership has released its list of the 10 most valuable startups that are fueling the city’s growth and entrepreneurial energy, including industry giants like Axiom Space and Fervo Energy.

Currently, Houston hosts more than 1,300 startups in industries such as energy, life sciences, manufacturing and aerospace, according to the GHP. The list ranks its top 10 startups by valuation based on the company’s last private funding round, reflected in Pitchbook data, as of Oct. 20 of this year.

The top 10 list includes:

10. NXTClean Fuels

Valuation: $530 million

NXTClean Fuels builds biofuel refineries that produce renewable fuel by using feedstocks like cooking oil and recycled organic materials.

9. Homebase

Valuation: $660 million

HR tech company Homebase provides employee management software that helps manage and optimize timesheets, payroll and more, with over over 100,000 small businesses and 2 million hourly workers using its product.

8. Zolve

Valuation: $800 million

Zolve is a banking platform that provides customers with access to financial products that aim to be accessible, flexible, and affordable than other financial platforms.

7. Stramsen Biotech

Valuation: $807 million

Stramsen Biotech develops plant-based drug therapies that target both infectious and noninfectious diseases, which include cancer, diabetes, HIV, kidney disease and neurological issues.

6. Octagos

Valuation: $843 million

Healthtech company Octagos has developed a remote cardiac monitoring software driven by AI that helps consolidate patient data in real-time, assisting healthcare professionals in providing quicker, easier and more accurate care.

5. Fervo Energy

Valuation: $1.4 billion

Pioneering geothermal company Fervo Energy combines horizontal drilling and fiber-optic sensing to produce electricity. The company is developing its flagship Cape Station geothermal power project in Utah. The first phase of the project will supply 100 megawatts of power beginning in 2026

4.Cart.com

Valuation: $1.7 billion

Cart.com is an e-commerce giant and logistics solutions provider that was founded in 2020 and obtained unicorn status within just three years.

3. Axiom Space

Valuation: $2.1 billion

Axiom Space is one of the anchor tenants at the Houston Spaceport, and has completed four missions of sending commercial astronauts to the ISS since 2022. In 2027, the company expects to see the first section of its private space station, Axiom Station, launched into low-earth orbit.

2. Solugen

Valuation: $2.175 billion

Solugen replaces petroleum-based products with plant-derived substitutes through its Bioforge manufacturing platform.

1. HighRadius

Valuation: $3.2 billion

HighRadius uses advanced technology to automate and manage accounts receivable processes for businesses worldwide.

The GHP also released its State of Houston’s Tech and Innovation Landscape, which mapped Houston’s digital and innovation sectors. Read the full report here.

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Houston-area startup fundraising hit a five-year low in Q3, even as AI deals surged nationwide. Image via Getty Images.

Houston-area VC funding sunk to 5-year low in Q3 2025, report says

by the numbers

Fundraising for Houston-area startups experienced a summertime slowdown, sinking to a five-year low in the third quarter, according to the latest PitchBook-NVCA Venture Monitor.

The PitchBook-NVCA Venture Monitor shows startups in the Houston metro area attracted $204.4 million in venture capital from June through August. That’s 55 percent below the total for the previous quarter and 51 percent below the total for the third quarter of 2024.

More telling than those figures is that the third-quarter haul dropped to its lowest total for Houston-area startups since the fourth quarter of 2020, when $133.4 million in VC was raised. That was the third full quarter after health officials declared the pandemic in the U.S.

In Q3 2025, AI accounted for nearly 40 percent of VC deal volume in the U.S., Kyle Stanford, director of U.S. venture research at PitchBook, said in the report. And through the first nine months of 2025, AI represented 64 percent of U.S. deal value.

VC deal activity “has been nearly steady, emphasizing a consistent influx of companies, especially at the pre-seed and seed stages,” Stanford said. “Large deals remain the primary driver of market deal value, with almost all of these deals focused on AI.”

Bobby Franklin, president and CEO of NVCA, said that while fundraising hasn’t returned to pre-pandemic highs, deal values are going up in sectors such as AI, manufacturing, robotics and space tech, many of which have already exceeded their investment totals for all of 2024.

Shoreless will open a new AI lab at Greentown Houston. Photo via GreentownLabs.com

Greentown Houston to add new AI lab for energy startups

AI partnership

Greentown Labs has partnered with Shoreless to launch an AI lab within its Houston climatetech incubator.

"Climatetech and energy startups are transforming industries, and AI is a critical tool in that journey," Lawson Gow, Greentown's Head of Houston, said in a news release. "We're excited to bring this new offering to our entrepreneurs and corporate partners to enhance the way they think about reducing costs and emissions across the value chain."

Shoreless, a Houston-based company that enables AI adoption for enterprise systems, will support startups developing solutions for supply-chain optimization and decarbonization. They will offer Greentown members climate sprint sessions that will deliver AI-driven insights to assist companies in reducing Scope 3 emissions, driving new revenue streams and lowering expenses. Additionally, the lab will help companies test their ideas before attempting to scale them globally.

"The future of climatetech is intertwined with the future of AI," Ken Myers, Founder and CEO of Shoreless, said in a news release. "By launching this AI lab with Greentown Labs, we are creating a collaborative ecosystem where innovation can flourish. Our agentic AI is designed to help companies make a real difference, and we are excited to see the groundbreaking solutions that will emerge from this partnership."

Greentown and Shoreless will collaborate on workshops that address industry needs for technical teams, and Shoreless will also work to provide engagement opportunities and tailored workshops for Greentown’s startups and residents. Interested companies can inquire here.

Recently, Greentown Labs also partnered with Los Angeles-based software development firm Nominal to launch the new Industrial Center of Excellence at Greentown's Houston incubator. It also announced a partnership with Houston-based EnergyTech Nexus, which will also open an investor lounge on-site last month. Read more here.

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This article originally appeared on our sister site, EnergyCapitalHTX.com.

Houston startup and investment leader John "JR" Reale has a new role at the Ion. Photo courtesy Rice Alliance.

The Ion taps John Reale for startup and investor role

new hire

The Ion has named John "JR" Reale as its director for startups and investor engagement.

In his new role, Reale, a longtime leader in Houston’s startup ecosystem, will work to strengthen the innovation district's founder and investor network.

"Here’s what I’ve come to believe: the Ion is not just a building, not just a real estate play, and not just another innovation district. COVID, remote work, and shifting market dynamics changed the rules. Key ingredients like co-working, events, and community, while impactful, are no longer enough on their own," Reale shared on a LinkedIn post announcing the move. "What’s needed are advantages ... We need to intentionally design a system that repeatedly delivers advantages so founders can pull forward their visions."

Reale previously served as executive in residence and venture partner at TMC Venture Fund and co-founded Station Houston. He also serves as managing director of Integr8d Capital. He's an investor and serves on the board of directors for a number of venture-backed companies, including Cart.com, Lionguard and others.

The Ion will host "Today Is Day One – A conversation with John (JR) Reale" to welcome Reale to the role on Tuesday, Oct. 21. Reale will be joined at the event by Heath Butler, partner at Mercury, to discuss their thoughts on shaping Houston's founders ecosystem, as well as the Ion’s Founder Advantage Platform.

"On top of this connected architecture, we will build product. That product will be the Founder Advantage Platform to remove friction, compress time, and compound outcomes," Reale continued on LinkedIn. "This is the system that will drive repeatable experiences, and naturally, make these journeys so much more fun."

Startup applications in Houston have dipped since their 2021 peak, even as national entrepreneurship hits record highs, according to a new report from The Kaplan Group. Photo via Getty Images.

Houston's surge in new startups cools since pandemic peak, study shows

by the numbers

Startup activity in the Houston metro area has dipped since its pandemic peak, according to a new study.

Dating back to 2005, the volume of applications to form new businesses in the Houston area hit its highest level in 2021 (151,804). Since then, though, the application volume has fallen, according to the study, conducted by business debt collection agency The Kaplan Group. Here's the breakdown from the last few years:

  • Applications dropped to 130,011 in 2022
  • Climbed to 145,926 in 2023
  • Dropped again to 138,595 in 2024

Looking at the Houston area’s figures another way, the 2024 total surpassed the 2015-19 average by roughly 60 percent to 90 percent, the study shows.

Dallas-Fort Worth has seen similar startup declines (162,312 in 2021 vs. 153,378 in 2024), but the San Antonio metro area recorded higher application volume in 2023 and 2024 (37,412 and 35,798, respectively) than it did in 2021 (34,208).

The story is different in the Austin metro area. Application volume in 2023 and 2024 (53,200 and 59,190, respectively) exceeded the 2021 total (47,106).

The picture for startup activity in Texas’ four major metros deviates from the nationwide picture.

“America’s real viral trend is entrepreneurship,” says The Kaplan Group. “New business formations are reaching an all-time high across the country.”

In the U.S., per-month business formations soared 435 percent from 2004 (89,561) to 2025 (478,805), the study says.

Amid the growth of startup activity, business bankruptcies in the U.S. have plummeted almost 74 percent since 2004, according to The Kaplan Group.

“The country’s business scene has grown both more resilient and more ambitious in the past two decades,” the collection agency says.

Eight Houston-area energy employers ranked on StartupBlink's new Corporate Startup Activity Index 2025. Photo via Getty Images

Houston energy giants rank high on new corporate startup activity report

startup support

Eight major players in Houston’s energy industry rank among the world’s top 20 energy companies for corporate startup activity.

The inaugural Corporate Startup Activity Index 2025, published by StartupBlink, ranks global corporations by industry. The eight Houston-area employers fall into the index’s energy and environment category.

Researchers from StartupBlink, an innovation research platform, scored more than 370 companies based on three factors: corporate involvement in startup activity, startup success and ecosystem integration.

The eight Houston-area energy employers that landed in the energy and environment category’s top 20 are:

  • No. 3 BP. Score: 13.547. U.S. headquarters in Houston.
  • No. 5 Saudi Aramco. Score: 7.405. Americas headquarters in Houston.
  • No. 7 Eni. Score: 6.255. Headquarters of Eni U.S. Operating Co. in Houston.
  • No. 8 Shell. Score: 6.217. U.S. headquarters in Houston.
  • No. 11 Occidental Petroleum. Score: 5.347. Global headquarters in Houston.
  • No. 15 Engie. Score: 3.352. North American headquarters in Houston.
  • No. 17 Repsol. Score: 2.980. U.S. headquarters for oil and gas operations in The Woodlands.
  • No. 19 Chevron. Score: 2.017. Global headquarters in Houston.

“Building a startup is hard, and navigating corporate innovation can be just as complex. This ranking is a step toward making the connection between startups and corporations more transparent, enabling startups and corporations to collaborate more effectively for mutual success,” said Eli David Rokah, CEO of StartupBlink.

Salesforce topped the global index with a score of 380.090, followed by Intel, Google, Qualcomm, and Comcast.

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NASA names new chief astronaut based in Houston

new hire

NASA has a new chief astronaut. Scott Tingle, stationed at the space agency’s Johnson Space Center in Houston, assumed the post Nov. 10.

Tingle succeeds NASA astronaut Joe Acaba, who had been chief astronaut since February 2023. Acaba now works on the staff of the Johnson Space Center’s director.

As chief astronaut, Tingle runs NASA’s Astronaut Office. His job includes developing astronauts’ flight crew operations and assigning crews for space missions, such as Artemis missions to the moon.

Tingle, a former captain in the Navy, was named a NASA astronaut candidate in 2009. He has logged over 4,500 flight hours in more than 50 aircraft.

Tingle was a flight engineer aboard the International Space Station, where he spent 168 days in orbit during two expeditions that launched in December 2017. Since returning to Earth, he has held various roles in the Astronaut Office, including mission support, technical leadership and crew readiness.

Before joining NASA, Tingle worked in El Segundo, California, on the technical staff of The Aerospace Corp., a nonprofit that supports U.S. space programs.

Tingle recalls expressing his desire to be an astronaut when he was 10 years old. It took him four tries to be accepted by NASA as an astronaut candidate.

“The first time I figured it was kind of too early. The second application, they sent out some feelers, and that was about it. Put in my third application, and got a couple of calls, but it didn’t quite happen,” Tingle said in an article published on the website of Purdue University, his alma mater.

8 can't-miss Houston business and innovation events for December

where to be

Editor's note: Houston’s innovation scene is loading up the calendar before the holidays. From climatetech pitch days to the return of favorite festive shindigs, here's what not to miss and how to register. Please note: this article may be updated to include additional event listings.

Dec. 3 — SouthWest-Midwest National Pediatric Device Innovation Consortium

This annual event brings together members, colleagues and guests of the FDA-supported pediatric consortium who are dedicated to assisting device innovators throughout the lifecycle in delivering innovative solutions to patients. Featured speakers include Dr. Danielle Gottlieb from Le Bonheur Children's Hospital, Balakrishna Haridas from Texas A&M University and Dr. Chester Koh from Texas Children’s Hospital.

This event is Wednesday, Dec. 3, from 3:30-8 p.m. at Texas A&M EnMed Tower. Register here.

Dec. 4 — Resiliency & Adaptation Sector Pitch Day: Scaling Solutions to Address Climate Disruption

Join innovators, industry leaders, investors and policymakers as they explore breakthrough climate and energy technologies at Greentown's latest installment of its Sector Pitch Day series, focused on resiliency and adaptation. Hear from Adrian Trömel, Chief Innovation Officer at Rice University; Eric Willman, Executive Director of the Rice WaTER Institute; pitches from 10 Greentown startups and more.

This event is Thursday, Dec. 4, from 1-3:30 p.m. at the Ion. The Ion Holiday Block Party follows. Register here.

Dec. 4 — The Ion District Holiday Block Party

The Ion District, Rice Alliance and Greentown Labs will celebrate the season during the Ion District Holiday Block Party. Expect to find local bites, drinks, music and meaningful connections across Houston’s innovation ecosystem. Guests are invited to participate in Operation Love’s holiday toy drive supporting local families.

This event is Thursday, Dec. 4, from 4-7 p.m. Register here.

Dec. 8 — Pumps & Pipes Annual Event 2025

The annual gathering brings together cross-industry leaders in aerospace, energy and medicine for engaging discussions and networking opportunities. Connor Grennan, Chief AI Architect at the NYU Stern School of Business, will present this year's keynote address, entitled "Practical Strategies to Increase Productivity." Other sessions will feature leaders from Cena Research Institute, NASA Ames Research Center, ExxonMobil, Southwest Airlines and more.

This event is Monday, Dec. 8, from 8 a.m.-5 p.m., at TMC Helix Park. Register here.

Dec. 9 — Jingle and Mingle

Don your ugliest sweater and snap a pic with Startup Santa! Bayou City Startups, Rocket Network, Founder Institute and Energytech Nexus are bringing back their popular Jingle Mingle for the third year. Network and celebrate with founders, community stakeholders and others in Houston's innovation scene. Donations to the Houston Food Bank are encouraged in place of tickets.

This event is Tuesday, Dec. 9, from 5-7 p.m., at the Solarium in Midtown. Register here.

Dec. 9 — European Innovation Spotlight

Celebrate European cooperation and innovation with the European Innovation Council during an exclusive demo night and networking event at Greentown Labs. Hear from 15 EIC-backed founders supported by the European Union with top-class climatetech technologies, listen to a fireside chat and engage in a networking event following the pitches.

This event is Tuesday, Dec. 9, from 4:30-7 p.m., at the Ion. Register here.

Dec. 9-10 — Energy LIVE

Energy LIVE is Reuters Events' flagship ConfEx that brings the full energy ecosystem together under one roof to solve the industry's most urgent commercial and operational challenges. The event will feature 3,000-plus senior executives across three strategic stages, a showcase of 75-plus exhibitors and six strategic content pillars.

This event is Dec. 9-10 at NRG Park. Register here.

Dec. 15 — Innov8 Hub Pitch Day

Hear pitches from members of the latest Innov8 Hub Innovators to Founders cohort, which empowers academic scientists and innovators to become successful startup founders. Meet and network with the founders over light bites and drinks at a reception following the pitch competition.

This event is Monday, Dec. 15, at the Innovation Center at UH Technology Bridge (Bldg. 4). Register here.

5 Houston suburbs among top places to retire and more innovation news

Trending Topics

Editor's note: It's time to look back on the top Houston innovation news in recent weeks. From Houston's most valuable startups right now to the top places to retire in 2026, here are the most-read InnovationMap stories from November 16-30:

1. U.S. News names 5 Houston suburbs as the best places to retire in 2026

The Woodlands is the No. 4 best place to retire. Photo courtesy of Visit The Woodlands

Houston-area suburbs should be on the lookout for an influx of retirees in 2026. A new study by U.S. News and World Report has declared The Woodlands and Spring as the fourth and fifth best cities to retire in America, with three other local cities making the top 25. Continue reading.

2. 3 Houston companies land on Deloitte’s Technology Fast 500 list

Three Houston companies ranked on Deloitte's annual list, with two cracking the top 100. Photo via Getty Images

Three Houston companies have made this year’s Deloitte North America Technology Fast 500 list. The report ranks the fastest-growing technology, media, telecommunications, life sciences, fintech, and energy tech companies in North America. The top Houston company to make the list is Action1 Corp., No. 16, a provider of cybersecurity software. Continue reading.

3. Houston’s 10 most valuable startups revealed in new report

Houston's top startups by valuation range from e-commerce startups to a geothermal pioneer. Photo via Getty Images

The Greater Houston Partnership has released its list of the 10 most valuable startups that are fueling the city’s growth and entrepreneurial energy, including industry giants like Axiom Space and Fervo Energy. The list ranks its top 10 startups by valuation based on the company’s last private funding round, reflected in Pitchbook data, as of October 20 of this year. Continue reading.

4. Houston scores $120M in new cancer research and prevention grants

The Cancer Prevention and Research Institute of Texas has doled out 73 more grants to health care systems and companies in the state. Carter Smith/Courtesy of MD Anderson

The Cancer Prevention and Research Institute of Texas has granted more than $120 million to Houston organizations and companies as part of 73 new awards issued statewide. The funds are part of nearly $154 million approved by the CPRIT's governing board earlier this month, bringing the organization's total investment in cancer prevention and research to more than $4 billion since its inception. Continue reading.

5. Photos: Highlights from the 2025 Houston Innovation Awards

Congratulations to the 2025 Houston Innovation Awards winners! Photo by Emily Jaschke

The 2025 Houston Innovation Awards season came to a close on November 13 at InnovationMap's annual awards program and networking event. A full house of attendees gathered to celebrate the best and brightest in Houston innovation right now. Continue reading.

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