Houston health tech startup secures $20M series A, NIH grant amid clinical trials

fresh funding

VenoStent has raised additional funding. Image courtesy of VenoStent

A clinical-stage Houston health tech company with a novel therapeutic device has raised venture capital funding and secured a grant from the National Institutes of Health.

VenoStent Inc., which is currently in clinical trials with its bioabsorbable perivascular wrap, announced the closing of a $20 million series A round co-led by Good Growth Capital and IAG Capital Partners. The two Charleston, South Carolina-based firms also led VenoStent's 2023 series A round that closed last year at $16 million.

Additionally, the company secured a $3.6 million Small Business Innovation Research (SBIR) Phase II Grant from NIH, which will help fund its multi-center, 200-patient, randomized controlled trial in the United States.

Tim Boire, VenoStent CEO and co-founder, describes 2024 so far as "a momentous year" so far for his company.

"In the span of a few months, we initiated our first clinical sites, enrolled the first patients in our large RCT and closed our Series A with Norwest," Boire says in a news release. "We also received the NIH grant, which enables us to execute our trial with the highest degree of quality and rigor to make it as scientifically robust and impactful to patients as possible.

'Each of these are major company milestones that collectively represent many years of intensive and fruitful R&D and collaboration," he continues. "These recent milestones will propel our company forward to an exciting next phase."

Tim Boire is the CEO and co-founder of VenoStent. Photo via LinkedIn

The company's innovation, the SelfWrap, goes around arteriovenous (AV) access sites at the time of AV fistula creation surgery. The device is intended "to accelerate the usability and increase the durability of the fistula sites for chronic kidney disease (CKD) patients requiring hemodialysis," reads the release, "mimicking the arterial environment in veins, which experience a 10x increase in pressure and flow during AV creation and causes the veins to become unusable in dialysis."

Along with the investment, VenoStent announced two new board observers. Norwest General Partner Dr. Zack Scott and Investor Dr. Ehi Akhirome are bringing their expertise to the growing company.

"Norwest's investment is tremendous validation for VenoStent, and we are thrilled to have both Zack and Ehi joining the company's board," VenoStent COO and Co-Founder Geoffrey Lucks adds in the release. "Zack and Ehi have extensive knowledge in our space, and their added value will match the capital and cache of Norwest dollar-for-dollar."

Last year at the same time VenoStent announced its last funding round, the SelfWrap was approved by the U.S. Food and Drug Administration to begin its U.S. Investigational Device Exemption (IDE) study.

"Over half a million people in the U.S. rely on hemodialysis to survive and require an arteriovenous fistula creation surgery in order to receive the treatment. However, the AV fistula procedure has a one-year failure rate of more than 60 percent, which significantly impacts patients' survival rates and quality of life," Scott says in the release. "VenoStent's groundbreaking technology for AV fistula formation, SelfWrap, has the potential to significantly improve these odds. We look forward to working with the VenoStent team as it proves the efficacy of this breakthrough technology in order to improve the lives of hundreds of thousands of CKD patients."

Last summer, Boire told InnovationMap on the Houston Innovators Podcast that he's looking to launch the product in 2026.

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Trending Houston startup news from the week included a TMC-based startup raising money. Photo courtesy of TMC

Houston startup trending news includes funding, M&A updates

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Editor's note:Another week has come and gone, and it's time to round up the top headlines from the past few days. Trending Houston tech and startup news on InnovationMap included an exit for a Houston edtech startup, fresh funding for a med device company, and more.

Houston workforce training startup acquired by California company

Ampersand has been acquired by a college loan and student services provider based in San Diego. Photo ampersandpro.com

A Houston startup, founded to streamline and optimize the intern-company relationship, has been acquired by a student loan and services provider.

San Diego, California-based Ascent, a collegiate student loan company that also provides student support services, announced it has acquired Ampersand, a software platform that provides skills training to young professionals. The news was announced today, July 27, coinciding with National Intern Day.

With the acquisition, Allie Danziger, co-founder and CEO of Ampersand, joins Ascent as senior vice president and general manager of student success. She will lead the company's educational program that focuses on equipping students with skills from education to employment.

“Since launching Ampersand in 2020, we’ve received constant praise from employers, students, and universities on the real education-to-employment skills gap we are filling,” says Danziger in a news release. “I take immense pride in the fact that we’ve helped thousands of students enter the workforce with confidence, earn higher salaries, and get set on the right career path. I know joining the Ascent team will unlock even more opportunities for our combined companies, expanding our collective impact to millions of students and job seekers.” Continue reading.

Houston health tech startup secures $16M series A, prepares for first U.S. clinical trials

A Houston startup based out of the TMC Innovation Factory has announced funding and upcoming trials. Photo courtesy of TMC

Fueled by fresh funding in the bank, a medical device startup has announced upcoming trials.

VenoStent, Inc., a company developing an innovative tool to improve outcomes for hemodialysis patients, has closed $16 million in a series A round of financing. Two Charleston, South Carolina-based firms — Good Growth Capital and IAG Capital Partners — led the round.

The company also announced it received Investigational Device Exemption from the FDA for its United States clinical trial, SAVE-FistulaS.

“Our mission at VenoStent is to improve the quality and length of life of dialysis patients. On the heels of our very promising results in several preclinical studies and a 20-patient feasibility study that led to our Breakthrough Designation last year, this recent IDE approval is perhaps our biggest milestone to date," Tim Boire, CEO of VenoStent, says in a news release. "We now enter an exciting new epoch in our company’s development that we believe will ultimately result in FDA Approval and vastly improve the quality and length of life for patients." Continue reading.

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

Check out these workshops, networking events, conferences, and other goings on in Houston this month. Photo via Getty Images

From networking meetups to startup showcases, August has a smorgasbord of opportunities for Houston innovators.

Here's a roundup of events you won't want to miss out on so mark your calendars and register accordingly. Continue reading.

Houston startup advances in Chevron's unique business accelerator

Currently, methane leak detection requires human evaluation. With this innovative new company's tech, this process can be automated. Photo via Getty Images

A Houston startup that is developing a technology to detect methane leaks has moved on to phase two in Chevron's unique business accelerator.

Aquanta Vision Technologies, a Houston-based climate-tech startup, was selected to participate in the scale-up phase of Chevron Studio, a Houston program that matches entrepreneurs with technologies to turn them into businesses. Aquanta's computer vision software completely automates the identification of methane in optical gas imaging, or OGI. The technology originated from Colorado State University and CSU STRATA Technology Transfer.

Babur Ozden, a tech startup entrepreneur, along with Marcus Martinez, the lead inventor and Dan Zimmerle, co-inventor and director of METEC at CSU Energy Institute, came up with the technology to identify the presence and motion of methane in live video streams. Currently, this process of identifying methane requires a human camera operator to interpret the images. This can often be unreliable in the collection of emissions data. Continue reading.

New Houston investment firm closes $32M fund, announces 3 portfolio companies

A new Houston firm has closed its inaugural fund to invest in health tech. Photo via Getty Images

A new firm has emerged to invest in early-stage tech bio, artificial intelligence, and life sciences.

Modi Ventures announced its inaugural fund, Tech+Bio Fund I, closed at $32 million, an oversubscribed amount. The fund targets companies "shaping the future of humanity," reads a press release from Modi.

“Investing in next generation technologies has always been very lucrative,” says Sahir Ali, general partner of Modi Ventures, in the release. “We are entering an era of software writing software (artificial intelligence), technology that can unravel our individual genetic makeup (gene sequencing), biotech that can reprogram our genes (gene editing), and a fundamental change in how medicine is practiced by leveraging all of the above (precision medicine).

"Tech Bio companies will revolutionize multiple trillion dollar industries, providing early investors with potential for great returns,” he continues. Continue reading.

A Houston startup based out of the TMC Innovation Factory has announced funding and upcoming trials. Photo courtesy of TMC

Houston health tech startup secures $16M series A, prepares for first U.S. clinical trials

money moves

Fueled by fresh funding in the bank, a medical device startup has announced upcoming trials.

VenoStent, Inc., a company developing an innovative tool to improve outcomes for hemodialysis patients, has closed $16 million in a series A round of financing. Two Charleston, South Carolina-based firms — Good Growth Capital and IAG Capital Partners — led the round.

The company also announced it received Investigational Device Exemption from the FDA for its United States clinical trial, SAVE-FistulaS.

“Our mission at VenoStent is to improve the quality and length of life of dialysis patients. On the heels of our very promising results in several preclinical studies and a 20-patient feasibility study that led to our Breakthrough Designation last year, this recent IDE approval is perhaps our biggest milestone to date," Tim Boire, CEO of VenoStent, says in a news release. "We now enter an exciting new epoch in our company’s development that we believe will ultimately result in FDA Approval and vastly improve the quality and length of life for patients."

VenoStent's novel therapeutic medical device is a bioabsorbable wrap. Image courtesy of VenoStent

VenoStent's series A will fund the trial, expand manufacturing capabilities, and more. The company is targeting the more than 800,000 people in the U.S. with end-stage renal disease. Currently, more than half of the surgeries performed to initiate hemodialysis fail within a year. VenoStent's novel therapeutic medical device is a bioabsorbable wrap that reduces vein collapse by providing mechanical support and promoting outward vein growth.

“This trial is designed to provide the highest level of clinical evidence. We’re excited to be in this position to treat the first patients in the United States with this technology, and demonstrate the safety and efficacy of our device,” continues Boire in the release.

Per the release, the company is aiming for FDA Approval and be the first-to-market device to improve hemodialysis access surgery.

“We’re extremely pleased to be partnering with VenoStent on this critical mission. This company and technology are poised for commercial success to address a critical, unmet need,” says Bob Crutchfield, operating partner at Good Growth Capital, in the release.

The TMC Venture Fund also contributed to the series A investment round, along with SNR, Baylor Angel Network / Affinity Fund, Creative Ventures, Cowtown Angels, Alumni Ventures, and other notable angel investors. Past investors in VenoStent include KidneyX, National Science Foundation, National Institute of Health, Y Combinator, Health Wildcatters, and the Texas Halo Fund.

“VenoStent’s data and traction to date is impressive and gives us a lot of confidence in their continued success. We look forward to helping them get this Breakthrough product to market and help patients that are in dire need of this innovative technology,” says Joel Whitley, partner at IAG Capital Partners, in the release.

Tim Boire is the CEO of VenoStent. Photo via LinkedIn

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5 Houston innovators who made headlines in June 2025

Featured Innovators

Editor's note: Houston innovators were in the spotlight in June, thanks to earning major accolades for their work on national — and global — levels. Here are five Houston innovators to know right now.

Tianshu Zhai, Chen-Yang Lin, Jing Zhang, HEXAspec co-founders 

HEXAspec has been awarded an NSF Partnership for Innovation grant. Photo courtesy of Rice

HEXAspec, a spinout from Rice University's Liu Idea Lab for Innovation and Entrepreneurship, was recently awarded a $500,000 National Science Foundation Partnership for Innovation grant.

Founded by Tianshu Zhai and Chen-Yang Lin, who both participated in the Rice Innovation Fellows program, as well as Jing Zhang, HEXAspec has developed breakthrough inorganic fillers that allow graphic processing units (GPUs) to use less water and electricity and generate less heat. The company will use the funding to continue enhancing semiconductor chips’ thermal conductivity to boost computing power. Learn more.

Cole Woody, University of Houston student

Cole Woody has earned the Barry Goldwater Scholarship for his research on personalized cancer-fighting vaccines. Photo courtesy UH.

Cole Woody, a biology major in the College of Natural Sciences and Mathematics at the University of Houston, has been awarded a Barry Goldwater Scholarship, becoming the first sophomore in UH history to earn the prestigious prize for research in natural sciences, mathematics and engineering.

Woody was recognized for his research on developing potential cancer vaccines through chimeric RNAs. The work specifically investigates how a vaccine can more aggressively target cancers. Learn more.

Varshini Chouthri, developer of NOMAD

NOMAD aims to help hikers stay in the moment while still utilizing technology. Photo courtesy UH.

An AI-powered, screen-free hiking system developed by Varshini Chouthri, a recent industrial design graduate from the University of Houston, has received Red Dot’s “Best of the Best” award, which recognizes the top innovative designs around the world.

“NOMAD was truly a passion project, inspired by years of hiking growing up, where the outdoors became a place of peace, challenge, and reflection,” Chouthri said.Learn more.

Axiom Space-tested cancer drug advances to clinical trials

mission critical

A cancer-fighting drug tested aboard several Axiom Space missions is moving forward to clinical trials.

Rebecsinib, which targets a cancer cloning and immune evasion gene, ADAR1, has received FDA approval to enter clinical trials under active Investigational New Drug (IND) status, according to a news release. The drug was tested aboard Axiom Mission 2 (Ax-2) and Axiom Mission 3 (Ax-3). It was developed by Aspera Biomedicine, led by Dr. Catriona Jamieson, director of the UC San Diego Sanford Stem Cell Institute (SSCI).

The San Diego-based Aspera team and Houston-based Axiom partnered to allow Rebecsinib to be tested in microgravity. Tumors have been shown to grow more rapidly in microgravity and even mimic how aggressive cancers can develop in patients.

“In terms of tumor growth, we see a doubling in growth of these little mini-tumors in just 10 days,” Jamieson explained in the release.

Rebecsinib took part in the patient-derived tumor organoid testing aboard the International Space Station. Similar testing is planned to continue on Axiom Station, the company's commercial space station that's currently under development.

Additionally, the drug will be tested aboard Ax-4 under its active IND status, which was targeted to launch June 25.

“We anticipate that this monumental mission will inform the expanded development of the first ADAR1 inhibitory cancer stem cell targeting drug for a broad array of cancers," Jamieson added.

According to Axiom, the milestone represents the potential for commercial space collaborations.

“We’re proud to work with Aspera Biomedicines and the UC San Diego Sanford Stem Cell Institute, as together we have achieved a historic milestone, and we’re even more excited for what’s to come,” Tejpaul Bhatia, the new CEO of Axiom Space, said in the release. “This is how we crack the code of the space economy – uniting public and private partners to turn microgravity into a launchpad for breakthroughs.”

Houston ranks No. 4 for HQ relocations and more innovation news to know

Trending News

Editor's note: The top recent Houston business and innovation news includes a high ranking for Houston HQs, an innovative exoskeleton designed for children with cerebral palsy, and incoming drones for Walmart delivery. Catch up on the 5 most-read InnovationMap stories from the latter half of June 2025 below:

1. Houston ranks among top 5 cities for corporate HQ relocations in new report

Houston attracted 31 new corporate headquarters from 2018 to 2024, according to a new report from CBRE. Photo via Getty Images

The Houston area already holds the title as the country’s third biggest metro hub for Fortune 500 headquarters, behind the New York City and Chicago areas. Now, Houston can tout another HQ accolade: It’s in a fourth-place tie with the Phoenix area for the most corporate headquarters relocations from 2018 to 2024.

During that period, the Houston and Phoenix areas each attracted 31 corporate headquarters, according to new research from commercial real estate services company CBRE. Continue reading.

2. Texas plugs in among states at highest risk for summer power outages in 2025

A new study puts Texas at No. 2 among the states most at risk for power outages this summer. Photo via Getty Images

Warning: Houston could be in for an especially uncomfortable summer.

A new study from solar energy company Wolf River Electric puts Texas at No. 2 among the states most at risk for power outages this summer. Michigan tops the list. Continue reading.

3. Houston team develops innovative soft skeleton for kids with cerebral palsy

UH BRAIN and TIRR Memorial Hermann have developed the MyoStep soft exoskeleton to address motor impairments caused by cerebral palsy. Photo courtesy UH.

A Houston team has introduced the MyoStep soft exoskeleton for children with cerebral palsy.

The soft skeleton aims to address motor impairments caused by cerebral palsy that impact children’s ability to participate in physical activities, self-care and academics. Continue reading.

4. CPRIT grants $22M to bring top cancer researchers to Houston

CPRIT recently granted $93 million to 61 organizations and scientists, including many in Houston, to advance cancer research. Carter Smith/Courtesy of MD Anderson

Several prominent cancer researchers are coming to the Houston area thanks to $22 million in grants recently awarded by the Cancer Prevention and Research Institute of Texas (CPRIT).

The biggest CPRIT recruitment grant — $6 million — went to genetics researcher Jean Gautier. Gautier, a professor of genetics and development at Columbia University’s Institute for Cancer Genetics, is joining the University of Texas MD Anderson Cancer Center to continue his research. Continue reading.

5. California company to launch Walmart drone delivery in Houston

California company to launch Walmart drone delivery in Houston

Walmart Supercenters in Houston will offer Wing drone delivery services by this time next year. Photo courtesy Wing.

California-based Wing will soon touch down in Houston.

The drone delivery company has partnered with Walmart Supercenters in Houston, Atlanta, Charlotte, Orlando and Tampa. According to a news release, Wing’s drone delivery services will be available at 100 Walmart stores across the selected markets by this time next year. Continue reading.

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