Big winners: 5 Houston companies that raised the most funding in 2024

year in review

These five Houston startups raised the most funding in 2024, according to InnovationMap reporting. Photo via Getty Images

Editor's note: As 2024 comes to a close, InnovationMap is looking back at the year's top stories in Houston innovation. When it came to the money raised in Houston, these five startups raised the most, according to reporting done by InnovationMap. Be sure to click on each story to read the full article.

Fervo Energy secures $600M in multiple rounds

The latest deal brings Fervo's total funding secured this year to around $600 million. Photo courtesy of Fervo

Fervo secured a lot of fresh funding this year to deliver on its 100x growth plans. Most recently, the company announced that it has raised $255 million in new funding and capital availability. A $135 million corporate equity round was led by Capricorn’s Technology Impact Fund II and a $120 million letter of credit and term loan facility was granted by Mercuria, an independent energy and commodity group that previously invested in the company. Read more about the round.

In February, Fervo secured $244 million in a financing round led by Devon Energy, and in September, the company received a $100 million bridge loan for the first phase of its ongoing project in Utah. This project, known as Project Cape, represents a 100x growth opportunity for Fervo, as Latimer explained to InnovationMap earlier this year. As of now, Project Cape is fully permitted up to 2 GW and will begin generating electricity in 2026, per the company.

Solugen scores $213.6M to support new facility

The new Solugen facility is expected to reduce annual carbon emissions by up to 18 million kilograms. Photo courtesy of Solugen

Houston-based Solugen secured financing from the U.S. Department of Energy's Loan Programs Office in June to support its mission of producing clean chemicals.

The LPO's $213.6 million loan guarantee will go toward the construction of the company's 500,000-square-foot Bioforge Marshall facility in Southwest Minnesota, which broke ground in April and will produce bio-based chemical products to be used in wastewater treatment, construction, agriculture, and the energy sector. According to Solugen, the facility is expected to reduce annual carbon emissions by up to 18 million kilograms.

"American manufacturing is at a turning point, and we are proud to have the opportunity to work with the DOE in bringing critical chemical production capabilities onshore to communities like Marshall," Gaurab Chakrabarti, CEO of Solugen, says in a news release. "By scaling cutting-edge technologies, we are meeting domestic demand for innovative solutions and setting global standards for sustainable biomanufacturing." Read more about the round.

Cart.com brings in $130M in financing, series C extension

Cart.com announced a $25 million series C extension round and $105 million in debt refinancing from investment manager BlackRock. Photo courtesy of Cart.com

While 2024 was less lucrative for Houston-based Cart.com when it comes to VC activity, the scaleup did pull in significant funding.

The company, which operates a multichannel commerce platform, secured $105 million in debt refinancing from investment manager BlackRock in July.

The debt refinancing follows a recent $25 million series C extension round, bringing Cart.com’s series C total to $85 million. The scaleup’s valuation now stands at $1.2 billion, making it one of the few $1 billion-plus “unicorns” in the Houston area. Read more about the round.

Procyrion closes $57.7M series E to fund journey to FDA approval, commercialization

Procyrion has announced the closing of its series E round of funding. Photo via Getty Images

Houston-born and bred medical device company, Procyrion, has completed its series E with a raise of $57.7 million, including the conversion of $10 million of interim financing.

Procyrion is the company behind Aortix, a pump designed to be placed in the descending thoracic aorta of heart failure patients, which has been shown to improve cardiac performance in seriously ill subjects. The money raised will allow the company to proceed with a the DRAIN-HF Study, a pivotal trial that will be used for eventual FDA approval and commercialization.

The Aortix is the brainchild of Houston cardiologist Reynolds Delgado. According to Procyrion’s CSO, Jace Heuring, Delgado, gained some of his experience with devices for the heart working with legendary Texas Heart Institute surgeon O.H. “Bud” Frazier. He filed his first patents related to the Aortix in 2005. Read more about the round.

Utility Global raises $53M series C investment

Utility Global’s technology enables reduction of greenhouse gas emissions along with generation of low-carbon fuels and chemicals. Photo courtesy of Utility Global

Houston-based Utility Global, a maker of decarbonization-focused gas production technology, has raised $53 million in an ongoing series C round.

Among the participants in the round are Canada’s Ontario Power Generation Pension Plan, the XCarb Innovation Fund operated by Luxembourg-based steel company ArcelorMittal, Houston-based investment firm Ara Partners, and Saudi Aramco’s investment arm.

Also, Utility Global and ArcelorMittal have agreed to develop at least one decarbonization facility at an ArcelorMittal steel plant. Read more about the round.

These five deals were the largest rounds raised by Houston startups, according to InnovationMap. Photo via Getty Images

Raising the roof: These were the top 5 investment rounds raised by Houston startups in 2023

year in review

Editor's note: As 2023 comes to a close, InnovationMap is looking back at the year's top stories in Houston innovation. When it came to the money raised in Houston, these five startups raised the most, according to reporting done by InnovationMap. Be sure to click on each story to read the full article.

Axiom Space's $350M series C

Axiom Space CEO Michael Suffredini (right) has announced the company's series C round with support from Aljazira Capital, led by CEO Naif AlMesned. Photo courtesy of Axiom Space

Houston has another unicorn — a company valued at $1 billion or more — thanks to a recent round of funding.

Axiom Space released the news this week that it's closed its series C round of funding to the tune of $350 million. While the company didn't release its valuation, it confirmed to Bloomberg that it's over the $1 billion threshold. Axiom reports that, according to available data, it's now raised the second-most funding of any private space company in 2023 behind SpaceX.

Saudi Arabia-based Aljazira Capital and South Korea-based Boryung Co. led the round. To date, Axiom has raised over $505 million with $2.2 billion in customer contracts, according to the company.

“We are honored to team with investors like Aljazira Capital, Boryung and others, who are committed to realizing the Axiom Space vision,” Axiom Space CEO and president Michael Suffredini says in a news release. “Together, we are working to serve innovators in medicine, materials science, and on-orbit infrastructure who represent billions of dollars in demand over the coming decade.

Read the full article from August.

Cart.com's $60M series C

Cart.com has secured its unicorn status at a $1.2B valuation with latest round of venture capital funding. Image via Cart.com

A Houston-founded software company —officially a unicorn company, valued at $1 billion or more — has announced the details of its latest fundraise.

Cart.com, which provides a suite of software solutions for commerce and logistics enablement, closed its $60 million series C equity funding round with a $1.2 billion valuation. Investors in the round included B. Riley Venture Capital, Kingfisher Investment Advisors, Snowflake Ventures, Prosperity7 Ventures, Legacy Knight, and more.

“We are proud to partner with this prestigious group of investors to accelerate our growth and continue to deliver best-in-class solutions to our customers,” says Omair Tariq, CEO and co-founder of Cart.com, in a statement. “As a leading commerce software and services provider, we are focused on enabling our customers to compete and win across every channel through digital tools and digitally driven logistics capabilities. We will continue to invest in our industry-leading commerce data capabilities, which are built to address the specific inventory, channel and supply chain challenges facing enterprises.”

Read the full article from July.

RepeatMD's $50M series A

Fresh off a win at the Houston Innovation Awards, RepeatMD has raised funding. Photo by Emily Jaschke/InnovationMap

Just nine months after its seed round, a Houston startup with a software platform for the aesthetic and wellness industry has secured $40 million in venture capital and $10 million in debt facility.

RepeatMD, a SaaS platform, announced today that it's secured $50 million, which includes a $10 million debt facility from Silicon Valley Bank. The round was co-led by Centana Growth Partners and Full In Partners with participation from PROOF and Mercury Fund, which also contributed to the seed round earlier this year.

“Even though the aesthetics and wellness industry has continued to innovate a growing range of life-changing treatments, practices continue to face challenges selling treatments and services that are new and unfamiliar to patients,” Sitter, CEO of RepeatMD, says in the release. “Our goal at RepeatMD is to give these practice owners the technology to elevate their patients’ experience. Our platform serves as a med-commerce engine equipped with the same firepower as large retailers to convert sales inside and outside of practice operating hours.”

Read the full article from November.

MacroFab's $42M series C

MacroFab has secured fresh investment to the tune of $42 million. Photo via macrofab.com

A Houston company has nearly doubled its total raised with its latest funding round.

MacroFab, a Houston-based electronics manufacturing platform, has announced $42 million in new growth capital led by Foundry and joined by BMW i Ventures, as well as existing investors Edison Partners and ATX Venture Partners. The platform was first launched by Misha Govshteyn and Chris Church in 2015.

“Given MacroFab’s compelling solutions to electronics manufacturing challenges and Foundry’s successful history with parallel companies, our investment is a perfect fit," Foundry Partner Seth Levine says in a news release. "This is a unique opportunity to be part of next generation cloud manufacturing and we’re excited to be joining forces with Misha and his team."

Read the full article from January.

EndoQuest Robotics' $42M series C

Houston-based EndoQuest has closed a $42 million round. Photo via Getty Images

A Houston medical device company that's tapping into robotics technology for the operating room has just announced a major chunk of fresh funding.

EndoQuest Robotics Inc. announced that it has closed a $42 million series C to advance its robot technology that's targeting endoluminal and gastrointestinal minimally invasive procedures. Returning investors, CE Ventures Limited and McNair Interests, and new investor, Puma Venture Capital, led the round of funding.

"Our investors share our vision of leveraging robotics to redefine the possibilities in minimally invasive procedures," Kurt Azarbarzin, CEO of EndoQuest Robotics, says in a press release. "This financing enables us to continue innovating and refining our technology, ultimately improving patient care and transforming the future of endoluminal interventions."

Read the full article from December.

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Rice University lands $18M to revolutionize lymphatic disease detection

fresh funding

An arm of the U.S. Department of Health and Human Services has awarded $18 million to scientists at Rice University for research that has the potential to revolutionize how lymphatic diseases are detected and help increase survivability.

The lymphatic system is the network of vessels all over the body that help eliminate waste, absorb fat and maintain fluid balance. Diseases in this system are often difficult to detect early due to the small size of the vessels and the invasiveness of biopsy testing. Though survival rates of lymph disease have skyrocketed in the United States over the last five years, it still claims around 200,000 people in the country annually.

Early detection of complex lymphatic anomalies (CLAs) and lymphedema is essential in increasing successful treatment rates. That’s where Rice University’s SynthX Center, directed by Han Xiao and Lei Li, an assistant professor of electrical and computer engineering, comes in.

Aided by researchers from Texas Children’s Hospital, Baylor College of Medicine, the University of Texas at Dallas and the University of Texas Southwestern Medical Center, the center is pioneering two technologies: the Visual Imaging System for Tracing and Analyzing Lymphatics with Photoacoustics (VISTA-LYMPH) and Digital Plasmonic Nanobubble Detection for Protein (DIAMOND-P).

Simply put, VISTA-LYMPH uses photoacoustic tomography (PAT), a combination of light and sound, to more accurately map the tiny vessels of the lymphatic system. The process is more effective than diagnostic tools that use only light or sound, independent of one another. The research award is through the Advanced Research Projects Agency for Health (ARPA-H) Lymphatic Imaging, Genomics and pHenotyping Technologies (LIGHT) program, part of the U.S. HHS, which saw the potential of VISTA-LYMPH in animal tests that produced finely detailed diagnostic maps.

“Thanks to ARPA-H’s award, we will build the most advanced PAT system to image the body’s lymphatic network with unprecedented resolution and speed, enabling earlier and more accurate diagnosis,” Li said in a news release.

Meanwhile, DIAMOND-P could replace the older, less exact immunoassay. It uses laser-heated vapors of plasmonic nanoparticles to detect viruses without having to separate or amplify, and at room temperature, greatly simplifying the process. This is an important part of greater diagnosis because even with VISTA-LYMPH’s greater imaging accuracy, many lymphatic diseases still do not appear. Detecting biological markers is still necessary.

According to Rice, the efforts will help address lymphatic disorders, including Gorham-Stout disease, kaposiform lymphangiomatosis and generalized lymphatic anomaly. They also could help manage conditions associated with lymphatic dysfunction, including cancer metastasis, cardiovascular disease and neurodegeneration.

“By validating VISTA-LYMPH and DIAMOND-P in both preclinical and clinical settings, the team aims to establish a comprehensive diagnostic pipeline for lymphatic diseases and potentially beyond,” Xiao added in the release.

The ARPA-H award funds the project for up to five years.

Houston doctor wins NIH grant to test virtual reality for ICU delirium

Virtual healing

Think of it like a reverse version of The Matrix. A person wakes up in a hospital bed and gets plugged into a virtual reality game world in order to heal.

While it may sound far-fetched, Dr. Hina Faisal, a Houston Methodist critical care specialist in the Department of Surgery, was recently awarded a $242,000 grant from the National Institute of Health to test the effects of VR games on patients coming out of major surgery in the intensive care unit (ICU).

The five-year study will focus on older patients using mental stimulation techniques to reduce incidences of delirium. The award comes courtesy of the National Institute on Aging K76 Paul B. Beeson Emerging Leaders Career Development Award in Aging.

“As the population of older adults continues to grow, the need for effective, scalable interventions to prevent postoperative complications like delirium is more important than ever,” Faisal said in a news release.

ICU delirium is a serious condition that can lead to major complications and even death. Roughly 87 percent of patients who undergo major surgery involving intubation will experience some form of delirium coming out of anesthesia. Causes can range from infection to drug reactions. While many cases are mild, prolonged ICU delirium may prevent a patient from following medical advice or even cause them to hurt themselves.

Using VR games to treat delirium is a rapidly emerging and exciting branch of medicine. Studies show that VR games can help promote mental activity, memory and cognitive function. However, the full benefits are currently unknown as studies have been hampered by small patient populations.

Faisal believes that half of all ICU delirium cases are preventable through VR treatment. Currently, a general lack of knowledge and resources has been holding back the advancement of the treatment.

Hopefully, the work of Faisal in one of the busiest medical cities in the world can alleviate that problem as she spends the next half-decade plugging patients into games to aid in their healing.

New accelerator joins the Ion and more Houston innovation news to know

Trending News

Editor's note: The Houston innovation scene is buzzing with big news this month, from a new accelerator joining the fold at the Ion to pre-IPO funding and national expansion plans. Below are the five most-read InnovationMap stories from Feb. 1-15, 2026:

New accelerator for AI startups to launch at Houston's Ion this spring

The new AI Native Dual-Use Sports, Health & Wellness Accelerator is expected to launch in March. Photo courtesy of the Ion

The Collectiv Foundation and Rice University have established a sports, health and wellness startup accelerator at the Ion District’s Collectiv, a sports-focused venture capital platform. The AI Native Dual-Use Sports, Health & Wellness Accelerator is scheduled to formally launch in March. Continue reading.

10+ can't-miss Houston business and innovation events in February

From recurring monthly favorites to the return of annual celebrations and summits, here's what not to miss in February. Photo courtesy the Ion.

February may be a short month, but its event calendar isn’t. From recurring monthly favorites to the return of annual celebrations and summits, here are the Houston business and innovation events not to miss — and how to register. Continue reading.

Houston lab-test startup seeks $1M for nationwide expansion

Jim Gebhart, founder and CEO of TheLabCafe.com. Courtesy photo.

Health care industry veteran Jim Gebhart knew there had to be a better way for patients to access lab services, especially those with high health insurance deductibles or no insurance at all. Continue reading.

Houston wearable biosensing company closes $13M pre-IPO round

Wellysis is known for its continuous ECG/EKG monitor with AI reporting, known as the S-Patch. Photo via wellysis.com.

Wellysis, a Seoul, South Korea-headquartered wearable biosensing company with its U.S. subsidiary based in Houston, has closed a $13.5 million pre-IPO funding round and plans to expand its Texas operations. Continue reading. Continue reading.

Texas booms as No. 3 best state to start a business right now

Texas is rebounding in a report of the best states to start a business. Photo via Getty Images

High employment growth and advantageous entrepreneurship rates have led Texas into a triumphant No. 3 spot in WalletHub's ranking of "Best and Worst States to Start a Business" for 2026. Continue reading.

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