VC roundup: Here's what Houston startups raised funds last quarter

following the money

Here are the Houston startups that together raised over $222 million in venture capital investment last quarter. Photo via Getty Images

Houston startups are keeping pace when it comes to venture capital raised this year. In this roundup of funding closed in the second quarter, Houston businesses across sectors and industries close significant rounds from seed to series C.

Eleven startups raised over $222 million last quarter, according to InnovationMap reporting, which is more than in the first and second quarters. In chronological order, here's what companies snagged fresh funding recently.


Houston EV charging tech company raises $6M series A

Revterra Corp. closed a $6 million series A round led by Equinor Ventures. Photo courtesy of Revterra

Houston-based tech company Revterra Corp. has picked up $6 million in a series A funding round to propel development of its battery for electric vehicle charging stations.

Norway’s Equinor Ventures led the round, with participation from Houston-based SCF Ventures. Previously, Revterra raised nearly $500,000 through a combination of angel investments and a National Science Foundation grant.

Revterra says its kinetic flywheel battery enables quick, simple, cost-effective installation of high-powered DC chargers for electric vehicles. The technology eases the burden placed on electrical grids, the company says. Continue reading.

Houston-founded blockchain startup raises $15M series A to increase international impact

Topl's latest fundraising round includes participation from a Houston investor as well as international partners. Image via Getty Images

A blockchain technology company that was founded out of Rice University has closed its latest round of funding.

Founded in 2017, Topl is a blockchain-as-a-service company that's developing a purpose-built blockchain ecosystem to empower impact and sustainability within its userbase of businesses. The company's $15 million series A round was co-led by Houston-based Mercury, Republic Asia, and Malta-based Cryptology Asset Group.

“Topl’s blockchain was purpose built to power the next wave of supply chains and markets, that are more sustainable and inclusive,” says Chris Georgen, founder and managing director of Topl, in a news release. “Every decision we’ve made has been relentlessly focused on this problem and it’s exciting to see this approach yielding results with more than 30 different impact-forward use cases already live or approaching launch." Continue reading.

Houston-based gig economy startup raises $1.2M, launches beta platform

Madison Long, left, and Simone May co-founded Clutch to democratize side gig success on college campuses. Photo courtesy of Clutch

Two Houstonians on a mission to enable safe and equitable entrepreneurship on college campuses have launched a new beta platform and closed pre-seed funding.

Clutch, a digital marketplace startup founded by Simone May and Madison Long, closed its pre-seed round of funding at $1.2 million – led by Precursor Ventures and other partners such as Capital Factory and HearstLab. The investment from this round will support Clutch’s national open beta launch of its platform for brands and student creators nationwide and its continued investment in customer and product strategy.

“We are at this inflection point where marketing is changing,” May says in a press release. “We know that the next generation can clearly see that and I think a lot of marketing agencies are starting to catch on. We need to be prioritizing the next generation’s opinion because they are driving who is interested in what they buy. This upcoming generation does not want to be sold to and they don’t like inorganic, inauthentic advertisements. That’s why user generated content is so big, it feels authentic.” Continue reading.

Houston hydrogen startup closes $25M series B

This hydrogen company has fresh funding. Photo via utility.global

Utility Global, a Houston-based sustainable hydrogen company, has closed its series B round of funding to the tune of $25 million, Axios reports.

Houston-based private equity firm Ara Partners led the round. Other participating investors included: Samsung Ventures, NOVA, and Aramco.

Utility Global, founded in 2018, has developed a clean hydrogen solution. The proprietary tech — called the eXERO Technology Platform — includes a zero electricity process that converts sustainable waste streams into high-purity hydrogen. Additionally, the company developed its H2Gen Product Line that delivers customers reliable, low carbon, and high purity hydrogen, which offers unparalleled feedstock flexibility and highly competitive economics. Continue reading.

Industrial blockchain tech company headquartered in Houston closes $4M series C round

Houston-based Data Gumbo, an industrial blockchain-software-as-a-service company, announced that its latest round or funding. Photo courtesy of Data Gumbo

Data Gumbo, a Houston-based tech startup, has picked up $4 million in a series C round from the venture capital arms of foreign energy companies Saudi Aramco and Equinor.

The funding for Data Gumbo came from Saudi Aramco Energy Ventures, the VC subsidiary of government-owned oil and natural gas giant Saudi Aramco, and Equinor Technology Ventures, the VC subsidiary of Norwegian energy operator Equinor. The U.S. headquarters for both Saudi Aramco and Equinor are in Houston. Continue reading.

Houston company raises $138M for next-generation geothermal energy

The future of geothermal energy is here — and just got a big payday. Photo via Getty Images

Houston-based startup Fervo Energy has picked up $138 million in funding to propel its creation and operation of carbon-free power plants fueled by geothermal energy.

Fervos says the series C round will help it complete power plants in Nevada and Utah and evaluate new projects in California, Idaho, Oregon, Colorado, and New Mexico, as well as in other countries.

California-based investment firm DCVC led the round, with participation from six new investors. Continue reading.

Houston 'sneakerheads' raise $8.9M to further develop digital marketplace

Tradeblock's three co-founders have known each other since childhood. Photo via tradeblock.us

A Houston-based company is kicking it with some fresh funding with plans to expand development of its marketplace platform.

Unique sneaker trading platform, Tradeblock, has raised $8.9 million in funding from investment partners Courtside VC, Trinity Ventures, and Concrete Rose Capital. Per the news release, the company expects additional funding of around $4.5 million to its seed round.

Tradeblock — founded in 2020 by self-proclaimed "sneakerheads" and childhood friends Mbiyimoh Ghogomu, Tony Malveaux, and Darren Smith — will use the fresh funding to expand and improve its digital marketplace for shoes. Continue reading.

Health tech startup with Houston HQ raises $14M series A

Optellum, which has its United States operations based in the TMC Innovation Institute, has raised fresh funding. Photo via Getty Images

A Oxford-based health tech startup that has its United States headquarters in Houston has announced the close of its series A round of funding.

Optellum, which has created a breakthrough AI platform to diagnose and treat early-stage lung cancer, has raised $14 million in a series A funding round. The round was led by United Kingdom-based Mercia, with additional investors California-based Intuitive Ventures and New York-based Black Opal Ventures. Existing investors, including St John's College in the University of Oxford, IQ Capital, and the family office of Sir Martin & Lady Audrey Wood, also participated in the round, per a news release.

"Lung cancer is an urgent public health crisis and Optellum's groundbreaking approach utilizing AI to accelerate early detection and intervention may fundamentally alter the healthcare community's approach to combating this disease," says Dr. Oliver Keown, managing director of Intuitive Ventures, in the release. "Optellum is uniquely positioned to align and provide considerable value to patients, providers, and payers alike. Intuitive Ventures is thrilled to provide our full arsenal of financial and strategic support to Optellum as we work towards a world of better outcomes for cancer patients." Continue reading.

Houston-based biomaterials company raises $1.1M to grow team, build new HQ

BUCHA BIO has raised over $1 million to grow its team, build a new headquarters, and accelerate its go-to-market strategy. Image courtesy of BUCHA BIO

A Houston company that has created a plant-based material that can replace unsustainable conventional leathers and plastics has announced the close of its oversubscribed seed funding round.

BUCHA BIO announced it's raised $1.1 million in seed funding. The round included participation from existing partners New Climate Ventures, Lifely VC, and Beni VC, as well as from new partners Prithvi VC, Asymmetry VC, and investors from the Glasswall Syndicate, including Alwyn Capital, as well as Chris Zarou, CEO & Founder of Visionary Music Group and manager of multi-platinum Grammy-nominated rapper, Logic, the startup reports in a news release.

“I’m excited to back BUCHA BIO’s amazing early market traction," Zarou says in the release. "Their next-gen bio-based materials are game-changing, and their goals align with my personal vision for a more sustainable future within the entertainment industry and beyond.” Continue reading.

Houston-based Codenotary has expanded its series B fundraising round

Codenotary's software enables tools for notarization and verification of the software development life cycle. Photo via Getty Images

A Houston software startup that raised $12.5 million earlier this year has announced additional funding of $6 million. Codenotary, whose technology helps secure software supply chains, closed its series B round in January. The fresh funding brings the company's total investment raised to $24 million — thanks to investors Bluwat and Elaia.leaders and following a series A round that was announced in 2020.

Codenotary, formerly known as vChain, was founded in 2018 by CEO Moshe Bar and CTO Dennis Zimmer. The additional capital, which will go towards scaling up sales in the U.S. and Europe as well as entering the Asian market, was raised as an extension of the series B round. Continue reading.

Houston-based virtual reality startup raises $3.2M in first outside capital round

VR training startup, HTX Labs, has raised funding from an outside investor for the first time. Courtesy of HTX Labs

HTX Labs, a Houston-based company that designs extended reality training for military and business purposes, announced last week that it has raised its first outside capital.

The company has received a $3.2 million investment from Cypress Growth Capital. Founded in 2017, HTX Labs — developer of the EMPACT Immersive Learning Platform — has been granted funding from the Department of Defense as well as grown its client base of commercial Enterprises. The platform uses virtual and extended reality that "enables organizations to rapidly create, deploy, measure, and sustain cost-effective, secure, and centralized immersive training programs, all within engaging, fully interactive virtual environments," per a news release.

“We have been looking to secure outside capital to accelerate the growth of our EMPACT platform and customer base but we hadn’t found the right partner who provided an investment vehicle that matched our needs,“ says HTX Labs CEO Scott Schneider in the release. Continue reading.

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Houston sports tech startup aims to optimize unsold resale ticket market with new platform

game on

Online platforms have long simplified the process of buying, selling, and trading event tickets. But what happens when your tickets don’t sell or when you’re stuck with costly season tickets you can’t use? You might end up giving them away or leaving them unused, leading to a financial loss either way.

This is the challenge that Houstonian Jerin Varkey is willing to address with Offer Approved, a new platform that empowers sellers and buyers, guaranteeing that no seat goes unused.

The idea took root around two years ago when Varkey, a passionate sports fan and season ticket holder, faced a new challenge. After becoming a parent, he found himself unable to attend every game. Frustrated with traditional resale platforms, he quickly realized that high fees and limited time made it difficult to sell all his tickets, causing him to lose money each time.

"I knew there was someone out there willing to pay $50," he recalls.

A transparent market for resale tickets


Offer Approved is a transparent and trusted platform for both sellers and buyers. Screenshots courtesy of Offer Approved

With this idea in mind, he started intensive research through 2023, identifying the multiple inefficiencies in the ticket market, including seeing the same seat in different marketplaces simultaneously.

“You’ll go through the checkout process and discover that those seats are no longer available; what happens is somebody bought it a few seconds before you on a different site, and the new system is taking it down," Varkey tells InnovationMap.

Scams, falsification, and security flaws were also among the problems. Offer Approved aims to fix these gaps by offering a transparent and trusted platform for both sellers and buyers, specifically to season ticket holders who leave several seats empty at stadiums each night.

“Sellers now have better visibility into the market, and we assist them in managing their listings," Varkey explains. "If a ticket is listed at $100, the seller can set a hidden minimum price of $80 or $70. Any offer that meets or exceeds that amount is automatically accepted, saving them the hassle of manually adjusting prices each time.”

A business model focused on sustainable growth

Varkey initially partnered with angel investors to bring the developer and a technical team. He prefers to avoid paid advertising, opting instead for a more sustainable business approach, including a small fee for sellers and a service charge for managing season tickets.

The project is currently self-funded, and Varkey is focused on ensuring long-term sustainability.

"I'm perfectly fine with taking things slowly. My priority is to make sure the model is sound first," he says.

Offer Approved is currently seeking season ticket holders and partnerships to build supply. He has also been in conversations with Toyota Center, NRG Stadium, and Minute Maid Park and their sports teams.

From corporate worker to visionary founder

Jerin Varkey founded Offer Approved to target unsold resale tickets to sporting events. Photo courtesy of Offer Approved

Varkey’s entrepreneurial journey started in the corporate world at Shell where he worked for ten years within capital project management and business improvement.

“It was a great experience, and I learned a lot, but I constantly felt the urge to say, 'This could be improved if we made some changes.' That kind of flexibility just wasn't possible in large corporate environments,” he recalls.

Varkey says he always tried to build innovative projects on the side until he finally left the company in 2018 and started working for venture-backed startups, where he found a space to bring his ideas to life.

For the past five years, Varkey has worked for startups like Gympass and Entera as a head of strategy and analytics. Now, as the founder of Offer Approved, he continues to work on new projects while driving his ticketing platform forward in Houston.

Varkey’s vision goes beyond just sports tickets and local markets — he aims to expand into areas like restaurant reservations, hotel stays, and other time-sensitive services, even offering deals to clients when traveling or exploring new cities.

“I believe in the power of negotiation, and I envision a future where people can make offers on anything with an expiration date,” he says.

Houston software provider makes strategic acquisition to expand platform

growing biz

An advanced geosteering, geoscience, and drilling software solutions company based in Houston has announced the acquisition of of a software platform.

ROGII plans to acquire TerraSLS's TLog Mudlog Editor software, which is used to generate vertical, and horizontal striplogs for use by geologists. The acquisition “will significantly enhance ROGII's product offerings by providing operators and clients with unprecedented real-time connectivity to mudlogging data,” according to ROGII. Mudlogging is a process that involves examining the cuttings of rock brought to the surface by the drilling.

“Our acquisition of TLog marks another step forward in our mission to deliver the most advanced, real-time data solutions to the oil and gas industry,” CEO of ROGII Igor B. Uvarov says in a news release. “The integration of TLog’s capabilities into our Solo Cloud platform will revolutionize the way operators and mudlogging service companies interact, making mudlogging a truly real-time process and driving greater efficiency and collaboration.”

One way it works is that ROGII will integrate TLog into its Solo Cloud platform, which will advance mudlogging data. This gathers it all into a real-time data exchange between mudlogging service companies and its operators.

The integration will allow operators to monitor mudlogging activities in real-time, which means a possible faster and more informed decision-making processes. The user will get immediate access to data, which can help enhance collaboration and improve efficiency. In addition, the mudlogging data will be safely stored on Solo Cloud for future analysis and data integration, which assists with maintaining integrity of the data.

“We look forward to investing in further development of TLog, increasing user-friendliness, expanding adoption worldwide, and making it the industry standard, being used by all mudlogging service companies,” Uvarov adds.

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This article originally ran on EnergyCapital.

3 Houston innovators to know this week

who's who

Editor's note: Every week, I introduce you to a handful of Houston innovators to know recently making headlines with news of innovative technology, investment activity, and more. This week's batch includes a biotech leader, a Nobel laureate, and EV innovator.

Chris George, United States co-lead at Octopus Electric Vehicles

Chris George, United States co-lead at Octopus Electric Vehicles, joins the Houston Innovators Podcast. Photo courtesy of Octopus

Switching from a gas-powered car to an electric one can be a big change, but a Houston-based company has made things a lot easier for its customers.

Octopus Electric Vehicles US, a spinout of United Kingdom-based retail energy provider Octopus Energy, matches its users with their perfect EV lease and sets them up with smart electricity technology for at-home charging.

"We do a couple of really unique things that are not only first of its kind but really innovative," Octopus EV's US Co-Lead Chris George says on the Houston Innovators Podcast, pointing out specifically Octopus Energy's Intelligent Octopus, a smart feature for customers that automates energy usage to lower cost.

"We launched an Intelligent Octopus for EVs service. Instead of operating in a very narrow window — overnight — it operates dynamically," he continues. Read more.

James P. Allison, director of the James P. Allison Institute

MD Anderson's lab led by Nobel laureate James Allison has secured a $5 million donation. Photo courtesy of MD Anderson Cancer Center

The James P. Allison Institute at The University of Texas MD Anderson Cancer Center scored a $5 million gift at its second annual symposium.

On behalf of Mayor John Whitmire, Oct. 10, 2024 was named “James P. Allison Institute Day,” and it was also the day that the TMC3 Collaborative Building in the Texas Medical Center’s Helix Park greeted 900 attendees for the scientific symposium, entitled “Immunotherapy in Space and Time: The Tumor Microenvironment.”

“Spatial biology is a rapidly expanding field that offers tremendous new insights into immunobiology that were not possible just a few short years ago. Understanding how immune cells interact with their neighbors and with tumor cells in space and time will enable us to bring forward new strategies to improve immunotherapy outcomes,” says James P. Allison. “We are proud to host this annual symposium to advance the field, and we are extremely grateful for the support of the Wintermann Foundation to make new breakthroughs possible.” Read more.

Paul Wotton, managing partner of RBL LLC

Established to rapidly build companies based on Rice University's portfolio of over 100 patents, RBL LLC is Rice University's new biotech venture creation studio based in Texas Medical Center Helix Park. RBL comes on the heels of establishing the Rice Biotech Launch Pad, a biotech innovation accelerator that opened last year.

Paul Wotton, executive director of the Rice Biotech Launch Pad, co-founded RBL with his colleagues Omid Veiseh, Rice professor of bioengineering and faculty director of the Rice Biotech Launch Pad; Jacob Robinson, Rice professor of electrical and computer engineering; and Dr. Rima Chakrabarti, a physician scientist and venture capital investor with KdT Ventures.

“This is a pivotal moment for Houston and beyond,” Wotton, who serves as RBL’s managing partner, says in a news release from Rice. “Houston has rapidly emerged as a global life sciences powerhouse, blending cutting-edge research with early clinical applications at Rice and the city’s world-renowned hospital systems." Continue reading.

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