These Houston startups raised more than a quarter billion dollars last month alone. Photo courtesy Venus Aerospace

Houston startups carried the fundraising momentum of Q1 and Q2 into July with several significant seed funding, Series A and Series B rounds.

From geothermal leaders to medtech innovators, these six Houston companies raised more than a quarter billion dollars last month alone, according to reporting by InnovationMap and our sister site, EnergyCapitalHTX.com.

Did we miss a funding round? Let us know by emailing innoeditor@innovationmap.com.

Altillion

Houston-based startup Altillion has secured $5 million in seed funding to accelerate the commercialization of its proprietary IRIS and ALIX technologies, which convert oilfield-produced water into valuable minerals, the company reported earlier this month.

San Francisco-based EIC Rose Rock and Houston-based Flathead Forge led the round. Altillion says the funding will go toward pilot facilities and commercial deployments as the company looks to scale in the U.S. Continue reading.

Buildforce

The U.S. is grappling with a current shortage of 50,000 electricians, according to the National Electrical Contractors Association. Photo via Unsplash

Houston-based Buildforce, which provides a tech-enabled staff platform geared toward electricians and electrical contractors, closed a $10 million Series A round led by Houston’s Saepio Capital last month.

Other investors in the round include Blue Heron Capital, Revolution’s Rise of the Rest Seed Fund, S3 Ventures and Chicago Ventures.

Buildforce says the funding will help fuel its national expansion and further development of its technology.

The startup, founded in 2019, connects electricians with electrical contractors for commercial and industrial construction projects. Continue reading.

Hephae Energy Technology Corp.

The company develops ultra-high-temperature tools to withstand the heat of geothermal reservoirs. Photo via hephaeet.com

Houston-area startup Hephae Energy Technology Corp. closed a $17.8 million Series A financing round last month to commercialize its geothermal technology.

The round was co-led by Pennsylvania-based Susquehanna Sustainable Investments, which invests in early-stage climatech companies, and Copenhagen-based Underground Ventures, which focuses on geothermal energy startups. Alfa8, Baruch Future Ventures, Centaurus Capital LP, Elemental Impact, Exa Ventures, Future Ventures, Grantham Foundation for the Protection of the Environment, New System Ventures and True North Institute joined the round, along with existing Houston-based investor Nabors Industries. Hephae reports in a news release that the Series A round brings the company's total capital raised to $24.7 million. Continue reading.

TYBR Health

The company's B3 GEL System is designed to protect tendons, ligaments and muscles while they heal from orthopedic surgery. Photo via Unsplash

Houston-based healthtech startup TYBR Health has raised a $30 million Series A round to scale its B3 GEL System, which helps protect tendons from scarring after surgery, the company announced last month.

The round was led by Minneapolis-based Vensana Capital and Cleveland-based Mutual Capital Partners, with participation from Denver-based Neovate Capital Partners and existing investors, according to a news release from the company.

TYBR Health said it plans to use the funding to broaden the B3 GEL System's clinical applications, expand commercialization and conduct studies to evaluate its ability to protect tissue and improve healing outcomes. Continue reading.

Venus Aerospace 

Venus Aerospace has secured funding from Mercury Fund, Lockheed Martin Ventures and others. Photo courtesy Venus Aerospace

Houston-based Venus Aerospace closed a $91 million Series B round last month and plans to scale the production of its hypersonic engine.

The round was led by Houston-based Mercury Fund with participation from Lockheed Martin Ventures, MESH, PEAK6, Draper Associates, Starboard Star Venture Capital, Green Sands Equity and other investors, according to a news release.

The investment comes about a year after Venus completed the first U.S. flight test of its high-thrust rotating detonation rocket engine (RDRE). The engine is expected to enable vehicles to travel four to six times the speed of sound from a conventional runway and is about 15 percent more efficient than traditional alternatives, according to the company. Continue reading.

Quaise Energy

A rendering of a Quaise Energy geothermal plant. Rendering via quaise.com

Houston-based Quaise Energy, a producer of utility-scale geothermal power, closed $134 million in a Series B round last month to advance its “superhot” geothermal power plant.

Climate-focused San Francisco-based investment firm Prelude Ventures led the round, with participation from JERA Co., Japan’s largest power generation company, and Idemitsu Kosan, one of Japan’s largest energy companies. Nearly all existing investors, including cleantech-focused investment firm Safar Partners, participated in the round.

The startup expects more equity and debt deals to close “imminently.” Quaise has raised $230 million since its founding in 2018. Continue reading.

The company's B3 GEL System is designed to protect tendons, ligaments and muscles while they heal from orthopedic surgery. Photo via Unsplash

Houston healthtech startup raises $30M to scale surgical healing gel

fresh funding

Houston-based healthtech startup TYBR Health has raised a $30 million Series A round to scale its B3 GEL System, which helps protect tendons from scarring after surgery.

The round was led by Minneapolis-based Vensana Capital and Cleveland-based Mutual Capital Partners, with participation from Denver-based Neovate Capital Partners and existing investors, according to a news release from the company.

TYBR Health said it plans to use the funding to broaden the B3 GEL System's clinical applications, expand commercialization and conduct studies to evaluate its ability to protect tissue and improve healing outcomes.

"Surgeons are exceptionally good at the structural repair, but the biology that follows is what determines how it heals. That part of the equation has gone largely unaddressed ... There's a shift underway across surgical specialties, from focusing almost entirely on the mechanical repair to also weighing the biological conditions that repair needs to succeed," Tim Keane, co-founder and CEO of TYBR Health, said in the news release. "This financing lets us reach more surgeons and generate the clinical evidence to move that shift forward."

As part of the financing round, Greg Banker of Vensana Capital and Liz Todia Zambory of Mutual Capital Partners will join the TYBR board, alongside independent director Aaron Smith.

"TYBR Health is addressing a gap surgeons have lived with for a long time, with a product that fits the way they already work," Zambory, principal at Mutual Capital Partners, added in the release. "We're excited to co-lead this round and support the company's growth."

TYBR was founded in 2020 and originated from the TMCi’s Biodesign fellowship and participated in the TMC's Accelerator for HealthTech. Its B3 GEL System is a flowable extracellular matrix hydrogel designed to protect tendons, ligaments, muscles, and the surrounding soft tissue while they heal from orthopedic surgery. It received FDA 510(k) clearance last June and launched an Australian clinical trial in the fall.

The B3 GEL System has been used in hand, wrist, shoulder, foot and ankle, and sports medicine procedures since it launched, according to the company, and was first used in the clinical setting earlier this year by Dr. Tammam Hanna with Texas Tech University Health Sciences Center.

Here are the eight companies currently being accelerated by Texas Medical Center Innovation. Photo courtesy of TMC

TMC names latest cohort of health tech innovators for 2024 program

ready to grow

The Texas Medical Center Innovation has named its new cohort of health tech companies it's currently accelerating.

This first batch of companies for 2024 was selected from last fall's TMC Bootcamp. Eight of the 10 startups from the bootcamp have moved on to the Accelerator for HealthTech.

"Hailing from diverse corners of the globe—from the tech corridors of Texas and California to Ireland and Australia—these companies converge with a shared mission—to move healthcare forward," Devin Dunn, head of the Accelerator for Health Tech, writes in a TMC blog post. "Through personalized mentorship and guidance, these eight companies are able to navigate complex challenges and refine their strategies, while leveraging the expertise of Texas Medical Center ecosystem to validate their innovations and drive real-world impact."

The selected companies include:

  • AcorAI, from Stockholm, Sweden, which is developing a first-of-its-kind, hand-held, scalable medical device for non-invasive intracardiac pressure monitoring to improve heart failure management for more than 64 million patients worldwide.
  • AirSeal, based in St. Louis, Missouri, which has developed a novel serum-based biomarker technology – circulating fatty acid synthase (cFAS) – that can diagnose cardiovascular and peripheral artery disease with high accuracy in both women and men.
  • Foxo, headquartered in Brisbane, Australia, serves as an interoperable tool designed to enhance clinical collaboration across the healthcare ecosystem. It enables secure, two-way communication with features such as video, voice, screen share, file sharing, and real-time messaging.
  • San Francisco-based Knowtex, an artificial intelligence-powered software writes medical documentation for you and assigns correct codes to ensure proper reimbursement.
  • NeuroBell, from Cork, Ireland, which is working on a novel medical device providing portable EEG monitoring with real-time and automated neonatal seizure alerts at the bedside.
  • Perth, Australia-based OncoRes Medical that's developing an intraoperative imaging technology to provide surgeons with real-time assessment of tissue microstructure.
  • From right here in Houston, Steradian Technologies, which has created RUMI, the first noninvasive, fully portable infectious disease diagnostic that costs the price of a latte. It uses novel photon-based detection to collect and diagnose infectious diseases in breath within 30 seconds.
  • TYBR, also based in Houston, created a flowable extracellular matrix hydrogel, crafted to safeguard healing tendons and ligaments from scarring and adhesions. The company originated from the TMCi’s Biodesign fellowship and now has entered into the Accelerator for HealthTech to sharpen its regulatory strategy, particularly in anticipation of FDA conversations.

Applications for the next Accelerator for HealthTech will open in May of this year.

Eight of the 10 most-promising life science startups named at BioHouston and the Rice Alliance's event are based in Houston. Photo courtesy of Rice Alliance

Houston startups named most promising in the life science space at annual event

ones to watch

For the second time this year, Houston life science leaders and startup founders gathered to discuss the future of health care in Houston.

The annual Texas Life Science Forum hosted by BioHouston and the Rice Alliance for Technology and Entrepreneurship was usually held during the fall before the pandemic pushed it off schedule. In February, the two organizations hosted the previous forum, but as of this month, the annual event is back on track.

The day included panels and networking, plus over 50 companies — about half of which are based in Houston — pitched their solutions across medical device, therapeutics, pharmaceuticals, and more to the crowd.

Houston-based Bairitone Health won the Michael E. DeBakey Memorial Life Science Award, established by BioHouston in honor of the groundbreaking Houston cardiovascular surgeon. The company is creating a wearable technology that takes a more innovative approach to sleep apnea and snoring with its SOMNAR platform that detects tissue-born sounds, identifies obstructions, and more. The award was presented by Ann Tanabe, CEO of BioHouston.

Ann Tanabe, CEO of BioHouston, presented the DeBakey Award to Houston-based Bairitone Health. Photo courtesy of Rice Alliance

For the first time, the event also named a people's choice award winner, as voted on by the audience members. Baritone Health also claimed the prize.

At the conclusion of the event, the Rice Alliance and BioHouston named the 10 most promising life science companies selected by investors and presented by the Greater Houston Partnership. This year's selection included the following companies, in alphabetical order.

Autonomize

Austin-based Autonomize unlocks data and context to enable human health outcomes

bEHR Health Systems

New Orleans-based bEHR Health Systems delivers, medical, lifestyle, and social solutions to health for African Americans.

EMPIRI

EMPIRI, based in Houston, is revolutionizing cancer care with a novel technology that accurately predicts each cancer patient's treatment responses empirically, enabling doctors to make the optimal treatment selection for each cancer patient.

InformAI

Houston-based InformAI develops AI-based medical image diagnostic tools and uses large dataset synthesis to develop clinical outcome predictors for physicians, hospitals, and medical imaging/medical device companies

March Biosciences 

Houston-based March Biosciences is impacting the most challenging lymphoma and leukemia.

MRG Health-SmartCare360

MRG Health-SmartCare360, based in Houston, is a determinate of health and disease specific virtual care management technology and services company that improves patient access to care and clinical outcomes for people suffering from one or more chronic disease.

Prana Thoracic

Prana Thoracic, founded in Houston out of JLABS at TMC, is a medical device startup that's innovating for the future of early intervention in lung cancer.

Steradian Technologies

Another med device startup based in Houston, Steradian Technologies employs deep-photonics technology to diagnose respiratory diseases in seconds, all for the price of a latte.

TYBR Health

Houston-based TYBR Health makes a hydrogel that protects tendons from scarring after surgery and improves patient outcomes.

Voythos

Voythos, based in Houston, is making medical records work for today's healthcare.

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CultureMap Emails are Awesome

10+ can't-miss Houston business and innovation events for October

where to be

Editor's note: Healthcare and energy conferences headline this month's slate of innovation events in Houston. But there's also time for family-friendly gatherings and pickleball socials. Here’s what not to miss in October and how to register. Please note: this article may be updated to add more events.

Oct. 2 — Joy in Medicine Initiative Symposium

The Houston Methodist Joy in Medicine Initiative Symposium will explore the power of connection in enhancing professional fulfillment for clinicians and healthcare teams, this year with the theme of "Forging New Paths: Leadership, Connection & Innovation to Sustain Joy in Medicine." Hear from Dr. Shlomit Schall, Houston Methodist Physician Organization president and CEO and chief physician executive; Houston Methodist CEO Marc Boom; and Dr. Albert Wu, from Johns Hopkins, author of Therefore, Let us Rejoice: Sustaining Joy in Medicine. Stick around for a networking happy hour.

This event is Friday, Oct. 2, from 8:30 a.m.-4:30 p.m. at Thompson Houston on Allen Parkway. Find more information here.

Oct. 6-7 — Hydrogen Americas Summit and Exhibition

Hydrogen Americas delivers an unparalleled opportunity to explore how hydrogen integrates with CCUS and other energy solutions under the new U.S. and Americas energy paradigm. This event moves to Houston in 2026, providing unmatched access to industry leaders and opportunities. The summit will include CCUS-dedicated sessions integrated directly into the conference programming, providing deeper insights into carbon capture, utilization and storage. Look forward to networking opportunities to connect with global suppliers, regional developers and key policymakers.

This event begins Oct. 6 at George R. Brown Convention Center. Register here.

Oct. 6-7 — Annual Energy Summit — Energy, Risk, and Geopolitics

The 10th annual energy summit is co-hosted by Baker Botts and the Center for Energy Studies at Rice University's Baker Institute. This year's summit, “Energy, Risk, and Geopolitics,” will explore how a changing geopolitical landscape and shifts in supply chain risks are impacting investment, innovation and market dynamics. The two-day program will include discussions spanning petroleum and LNG markets, critical minerals, electricity reliability, AI and power demand.

This event begins Oct. 6 at 7:30 am at James A Baker III Hall. The event will also be livestreamed. Register here.

Oct. 7 – Rockets Get You to Orbit. Culture Gets You to Stay

The Ion will host a morning discussion exploring humanity’s future in space. The event will feature Rick Tumlinson, author of Why Space? The Purpose of People; Scott Solomon, author of Becoming Martian; and David Alexander and Alexander Regier of Rice University’s new Space Humanities Initiative. The conversations will be moderated by EarthLight Foundation Director Junaid Mian.

This event is Wednesday, Oct. 7, from 8:30-11 a.m. at the Ion. Register here.

Oct. 8 — Greentown Labs’ Fall Pickleball Social

Greentown Labs hosts its fall social at Pickle Lab HTX this month. Enjoy friendly matches, networking and light bites. All skill sets are welcome.

This event is Thursday, Oct. 8, from 5:30-7:30 p.m. at Pickle Lab HTX. Register here.

Oct. 10 – Ion Family Tech Festival

Bring the whole family out to the second Ion Family Tech Festival. Kids will get to participate in hands-on STEAM workshops and learn more about STEAM-related careers.

This event is Saturday, Oct. 10, from 9 a.m.-12 p.m. at the Ion. Register here.

Oct. 13 – Mercury Fund Day at the Ion

Don’t miss the latest installment of Mercury Fund Day at the Ion, previously known as Software Day. The recurring monthly event features office hours (by application), a keynote and networking opportunities.

This event is Tuesday, Oct. 13, from 3:30-7 p.m. at the Ion. Register here.

Oct. 14 — Future of Global Energy Conference

This October, the sixth annual Future of Global Energy Conference kicks off, convening influential leaders from across energy, technology, finance and public policy who will come together to explore the forces defining the next era of global energy and Houston’s role in shaping it. Ryan Lance, Executive Chairman of ConocoPhillips and 2027 Chair of the Greater Houston Partnership’s Board of Directors, is the keynote speaker for this year’s conference, bringing a global perspective on rising demand, market volatility and Houston’s role in the next era of energy growth.

This event takes place Oct. 14 at the Marriott Marquis. Register here.

Oct. 17 — Energy Day 2026

Energy Day Houston is the nation’s largest free, family-friendly STEM festival. It features over 50 interactive exhibits and live demonstrations focused on traditional and emerging energy career paths to power up your curiosity.

This event begins at 11 a.m. on Oct. 17 at Sam Houston Park. Get details here.

Oct. 22 — Rice360 Innovation for Healthcare Access Conference

Researchers and innovators from Rice University, the Texas Medical Center, non-profit organizations, healthcare providers and others will come together to explore gaps in healthcare at the Innovation for Healthcare Access Conference. The event will feature speakers, workshops and case study presentations and will focus on innovations for the health of women and children in underserved rural and urban communities across Texas.

This event is Thursday, Oct. 22, from 8 a.m.-5 p.m. at the Rice University BioScience Research Collaborative (BRC). Register here.

Oct. 28-29 – TiECon 2026

TiE Houston, TiE Dallas and TiE Austin are joining forces to host TiEcon Texas 2026 at the Ion this month. The event will focus on how automation, artificial intelligence and emerging technologies are reshaping Texas industries, the economy and daily life. The conference will feature keynotes, panels, fireside chats and the TiE Hatch Pitch Competition.

This event starts Thursday, Oct. 29, at the Ion. Register here.

UH secures $5M in philanthropic gifts to bolster engineering, nursing

major gifts

The University of Houston has received two significant philanthropic gifts to advance innovation and healthcare, the college announced this month.

Manmohan Singh Kalsi and Marie-Luise Schubert Kalsi granted $4 million to UH’s Cullen College of Engineering to support endowed and current funds for graduate fellowships and industry interest in the mechanical and aerospace fields.

The gift is the Department of Mechanical and Aerospace Engineering’s largest donation in years, according to UH, and will establish two endowed professorships to attract and retain leading faculty. It will also create the Kalsi Faculty Research Fund, which aims to take emerging research to the next level.

Additionally, UH says it will also bring industry experts to campus to present and collaborate with students via the forthcoming Kalsi Seminar Series.

Manmohan Kalsi earned both his master’s degree and Ph.D. in mechanical engineering from UH. He went on to found Sugar Land-based Kalsi Engineering in 1978, which pioneered hydrodynamic rotary sealing technology and valve technology for nuclear power plants. In 2014, he established an endowed professorship within Cullen College in honor of the late UH professor Gabriel Fazekas.

"This gift provides a tremendous boost to our department's strategic momentum,” Karolos Grigoriadis, chair of the Department of Mechanical and Aerospace Engineering, said in a news release. “By simultaneously supporting faculty, graduate researchers and collaborative seminars, the Kalsis are strengthening every part of our research enterprise and creating new opportunities for discovery, collaboration and student mentorship.”

Meanwhile, Houston’s The Hamill Foundation also gave a $1 million gift to UH’s Andy and Barbara Gessner College of Nursing. The funds will establish The Hamill Foundation Endowed Professorship in Community Care Nursing, to support a faculty member focused on community-based nursing education, partnerships, research, and outreach to underserved communities in Houston.

Additionally, the funding will go toward efforts to address nurse shortages through the newly established UH Health program. The Hamill Foundation has donated $6 million previously to UH through the years, but the latest $1 million is the largest single investment from the foundation to date.

“The Hamill Foundation continues to help us raise the bar for nursing education and address the nursing shortage,” Kathryn Tart, founding dean and professor at Gessner College and Humana Endowed Dean's Chair in Nursing, said in a news release. “The enduring commitment and generosity of The Hamill Foundation allow us to answer the call and educate generations of competent and caring nursing professionals.”

Both of the recent gifts help fund UH’s $1 billion Can’t Stop Houston: The Centennial Campaign. As of September, the university had raised more than $881 million. UH turns 100 years old in March 2027.

SpaceX's supersized Starship rocket launches into orbit for first time

Out in Space

SpaceX launched its enormous Starship into orbit for the first time Monday, September 28, and successfully delivered the most advanced Starlink satellites yet, but cut the flight short to ensure safety.

The spacecraft reentered over the Pacific and splashed down north of Hawaii three hours after blasting off from Texas. The company had been aiming for a 10-hour flight, spanning six full laps around Earth, to prove its readiness for NASA’s Artemis moon program.

Starship tipped over and erupted in flames upon splashdown, a dramatic end to the mission.

Elon Musk's Starship almost didn't make it to orbit when one of its engines shut down prematurely. But with everything else working well and the bad engine no longer needed, flight controllers decided, after several tense minutes, to proceed as planned.

“Starship is orbital,” Mission Control announced to cheers.

NASA Administrator Jared Isaacman congratulated SpaceX on reaching orbit and “managing every step in a safe, responsible and especially inspirational way.”

Rocket carries 26 of Musk's most advanced Starlink satellites

Musk’s showpiece rocket — the biggest and most powerful ever built — carried 26 of the latest Starlinks to join the 11,000 older models already providing internet service. They popped out of the spacecraft one by one, drawing more cheers from the SpaceX crowd at the Starbase launch site.

The decision to end the flight early came soon afterward. SpaceX said hours later in an online update that the decision was made “out of an abundance of caution” because of the early engine trouble.

It was Starship’s 14th full-scale launch from Texas’ southern tip in three years. Earlier test flights ventured no farther than the Indian Ocean halfway around the world, often crashing in flames and briefly skimming space.

This time, the intent was for SpaceX to circle the globe from an altitude of 170 miles (275 kilometers) — not just once but six times over almost 10 hours, ending with a Pacific splashdown near Chile. While Starship achieved the proper orbit, zipping along at 17,500 mph (28,000 kph), flight controllers opted to play it safe and bring it back several hours sooner, after just a couple of laps.

The first-stage booster was never meant to return to the Starbase launch site either, dropping instead into the Gulf of Mexico within minutes of the morning liftoff.

SpaceX wants to ensure that everything works before flying Starship back to Starbase. If the spacecraft breaks apart over land and rains debris onto people, “our popularity would diminish very rapidly,” Musk said at a business summit earlier this month. “That’s why we’re being extremely cautious here.”

Depending on the findings from Monday's orbital debut, the next Starship could return to the launch pad, where giant mechanical arms would grab the hovering spacecraft. If the catch works — Musk gives it even or slightly better odds — then SpaceX will refly the spacecraft by year’s end or early next year.

The 407-foot (124-meter) rocket was designed from the start to be fully reusable, a key to lowering launch costs. SpaceX managed to salvage the last Starship from the Indian Ocean in July. Engineers modified the newly launched Starship’s heat shield based on hands-on inspections of the recovered spacecraft, which is being tugged back to Starbase.

SpaceX wants Starship to be certified for orbital flight

SpaceX is pressing hard to certify Starship for orbital flight, a vital step toward moon and Mars travel.

NASA’s Artemis III mission is coming up as soon as next summer, a triple-launch docking exercise in orbit around Earth between an Orion capsule full of astronauts and competing lunar landers. Jeff Bezos’ Blue Moon would blast off first, followed by Orion — which would close in for a linkup — and then Musk’s Starship for a docking with Orion once Blue Moon is unleashed.

The next mission, Artemis IV, is slated for no sooner than 2028 and would have astronauts landing on the moon in either Blue Moon or Starship, whichever is ready first. Subsequent moonshots will alternate between the two billionaires’ landers.

Musk originally developed Starship for Mars, intending to launch scores of them with the red planet’s first settlers. For now, he plans to focus on the moon and use Starship to haul satellites into orbit by the truckload, phasing out the company’s frailer Falcon 9 rocket within several years. A second Starship launch site is nearing completion at Florida’s Kennedy Space Center and a third is planned for Louisiana.