Houston climate tech startup closes $3M seed led by Shell

money moves

DexMat, a Houston-based materials science startup with tech originating at Rice University, has raised $3 million. Image via Getty Images

A material science startup with technology originating at Rice University has announced it has closed its seed round of funding.

DexMat raised $3 million in funding in a round led by Shell Ventures with participation from Overture Ventures, Climate Avengers and several individuals. The company transforms hydrocarbons, renewable fuels, and captured carbon into its flagship product Galvorn.

“DexMat presents an opportunity to capture methane, an abundant and inexpensive resource, and use it to replace materials such as steel, aluminum, and copper with a more sustainable option. We are excited to be part of DexMat’s journey going forward and to realize their ambitions,” says Aimee LaFleur, investment principal at Shell, in a news release.

Alongside the announcement of the seed round, DexMat has named Bryan Guido Hassin as its new CEO. Hassin, who was previously a member of the company's board of directors, has been at the helm of multiple climate tech startups and most recently co-founded Third Derivative. Dmitri Tsentalovich, the previous CEO, is transitioning to CTO.

Bryan Guido Hassin has been named CEO of DexMat. Photo via LinkedIn

“Before joining DexMat, as CEO of Third Derivative, I was introduced to easily over 2,000 innovative new concepts and technologies. DexMat’s solution was one of the most impactful I came across, which is precisely why I’m so excited to be joining the team,” says Hassin in a news release. “The opportunity to eventually cut up to 3 gigatons of CO2 annually in one of the most underserved markets of the clean energy transition — heavy industry — was too important for me to pass by.”

The product impacts the climate tech space on two levels. First, in the production process, the carbon is 'locked' into the Galvorn material structure as a form of long-term carbon storage, according to the release. On the use side, the material displaces carbon-intensive materials — like steel, aluminum, and copper.

"The world's net zero future is entirely dependent on electrifying everything and decarbonizing the built environment," says Shomik Dutta, co-founder and managing partner at Overture Ventures, in the release. "Metals like copper and steel sit at the heart of these trillion-dollar markets, and DexMat's technology promises carbon-negative, lighter, and stronger versions of what we currently mine and melt. Companies like this can help cement America's leadership in the most important transition of our lifetimes."

DexMat was founded to commercialize materials science technology that originally developed in the Rice University laboratory of co-founder Professor Matteo Pasquali. According to the release, the company was built on over $20 million in non-dilutive funding — including grants from from the Air Force Research Laboratory, Air Force Office of Scientific Research, U.S. Department of Energy, NASA, Advanced Functional Fabrics of America, and the National Science Foundation — with Rice University included in the list of original investors.

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5 incubators and accelerators fueling the growth of Houston startups

meet the finalists

Houston is home to numerous accelerators and incubators that support founders in pushing their innovative startups and technologies forward.

As part of our 2025 Houston Innovation Awards, the new Incubator/Accelerator of the Year category honors a local incubator or accelerator that is championing and fueling the growth of Houston startups.

Five incubators and accelerators have been named finalists for the 2025 award. They support startups ranging from hard-tech companies to digital health startups.

Read more about these organizations below. Then join us at the Houston Innovation Awards on Nov. 13 at Greentown Labs, when the winner will be unveiled.

Get your tickets now on sale for this exclusive event celebrating Houston Innovation.

Activate

Hard tech incubator Activate supports scientists in "the outset of their entrepreneurial journey." The Houston hub was introduced last year, and joins others in Boston, New York, and Berkley, California—where Activate is headquartered. It named its second Houston cohort this summer.

This year, the incubator grew to include its largest number of concurrent supported fellows, with 88 companies currently being supported nationally. In total, Activate has supported 296 fellows who have created 236 companies. Those companies have raised over $4 billion in follow-on funding, according to Activate. In Houston, it has supported several Innovation Awards finalists, including Solidec, Bairitone Health and Deep Anchor Solutions. It is led locally by Houston Managing Director Jeremy Pitts.

EnergyTech Nexus

Cleantech startup hub EnergyTech Nexus' mission is to accelerate the energy transition by connecting founders, investors and industrial stakeholders and helping to develop transformative companies, known as "thunderlizards."

The hub was founded in 2023 by CEO Jason Ethier, Juliana Garaizar and Nada Ahmed. It has supported startups including Capwell Services, Resollant, Syzygy Plasmonics, Hertha Metals, EarthEn Energy and Solidec—many of which are current or past Innovation Awards finalists. This year Energy Tech Nexus launched its COPILOT Accelerator, powered by Wells Fargo Innovation Incubator (IN²) at the National Renewable Energy Laboratory (NREL). COPILOT partners with Browning the Green Space, a nonprofit that promotes diversity, equity and inclusion (DEI) in the clean energy and climatech sectors. Energy Tech Nexus also launched its Liftoff fundraising program, its Investor Program, and a "strategic ecosystem partnership" with Greentown Labs.

Greentown Labs

Climatetech incubator Greentown Labs offers its community resources and a network to climate and energy innovation startups looking to grow. The collaborative community offers members state-of-the-art prototyping labs, business resources and access to investors and corporate partners. The co-located incubator was first launched in Boston in 2011 before opening in Houston in 2021.

Greentown has seen major changes and activity this year. In February, Greentown announced Georgina Campbell Flatter as its new CEO, along with a new Board of Directors. In July, it announced Lawson Gow as its Head of Houston, a "dedicated role to champion the success of Greentown Houston’s startups and lead Greentown’s next chapter of impact in the region," according to Greentown. It has since announced numerous new partnerships, including those with Energy Tech Nexus, Los Angeles-based software development firm Nominal, to launch the new Industrial Center of Excellence; and Houston-based Shoreless, to launch an AI lab onsite. Greentown Houston has supported 175 startups since its launch in 2021, with 45 joining in the last two years. Those startups include the likes of Hertha Metals, RepAir Carbon, Solidec, Eclipse Energy (formerly GoldH2) and many others.

Healthtech Accelerator (TMCi)

The Healthtech Accelerator, formerly TMCx, focuses on clinical partnerships to improve healthcare delivery and outcomes. Emerging digital health and medical device startups that join the accelerator are connected with a network of TMC hospitals and seasoned advisors that will prepare them for clinical validation, funding and deployment.

The Healthtech Accelerator is part of Texas Medical Center Innovation, which also offers the TMCi Accelerator for Cancer Therapeutics. The Healthtech Accelerator named its 19th, and latest, cohort of 11 companies last month.

Impact Hub Houston

Impact Hub Houston supports early-stage ventures at various stages of development through innovative programs that address pressing societal issues. The nonprofit organization supports social impact startups through mentorship, connections and training opportunities.

There are more than 110 Impact Hubs globally with 24,000-plus members spanning 69 countries, making it one of the world’s largest communities for accelerating entrepreneurial solutions toward the United Nations' Sustainable Development Goals (SDGs).

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The Houston Innovation Awards program is sponsored by Houston City College Northwest, Houston Powder Coaters, FLIGHT by Yuengling, and more to be announced soon. For sponsorship opportunities, please contact sales@innovationmap.com.



Rice University launches  engineering-led brain science and health institute

brain research

Rice University has announced the creation of a new interdisciplinary center known as the Rice Brain Institute (RBI).

The new hub will aim to use engineering, natural sciences and social sciences to research the brain and reduce the burden of neurodegenerative, neurodevelopmental and mental health disorders.

“The Rice Brain Institute reflects Rice’s strength in collaboration without boundaries,” Rachel Kimbro, dean of the School of Social Sciences, said in a news release. “Our researchers are not only advancing fundamental science but they’re also ensuring that knowledge reaches society in ways that promote human flourishing.”

RBI researchers will work in thematic clusters focusing on neurodegeneration, mental health, brain injury and neurodevelopment. The clusters will work toward goals such as significantly improving key brain health outcomes, reducing mortality and mental health disorders and improving quality of life for patients living with brain injuries and neurodevelopmental disorders, according to Rice.

The institute will focus on “engineering-driven innovation,” rather than traditional neuroscience, to design tools that can measure, model and modulate brain activity based around Rice’s expertise in soft robotics, neuroimaging, data science and artificial intelligence—making it unique among peer organizations, according to Rice.

Additionally, RBI will be structured around three collaborative Rice “pillars”:

  • The Neuroengineering Initiative, launched in 2018, brings together neuroscience, engineering, and related fields experts
  • The Neuroscience Initiative, a new initiative that brings together cell biologists, neurobiologists, biochemists, chemists and physicists to explore fundamental mechanisms of the brain and nervous system
  • The Brain and Society Initiative, also a new initiative, considers brain research within the broader social and policy landscape

Rice’s Neuroengineering Initiative has already garnered more than $78 million in research funding, according to Rice, and has established major partnerships, like the Rice-Houston Methodist Center for Neural Systems Restoration.

“Rice is uniquely equipped to bridge and connect scientific understanding of the brain and behavior sciences with the technologies and policies that shape our world,” Amy Dittmar, the Howard R. Hughes Provost and executive vice president for academic affairs, added in the news release. “By uniting faculty in neuroengineering, neuroscience and psychological sciences, this interdisciplinary hub embodies the kind of bold, nimble collaboration that allows Rice to turn discovery into societal impact to save lives and enhance human flourishing.”

The formation of the RBI coincides with recent support of the Dementia Prevention Research Institute of Texas (DPRIT), which landed voter approval earlier this week and aims to make Texas the center for dementia research via brain-health tech. According to the World Economic Forum, brain disorders and mental health disorders cost the global economy an estimated $5 trillion per year and could be as high as $16 trillion by 2030.

“Few areas of research have as direct and profound an impact on human well-being as brain health,” Rice President Reginald DesRoches added in the news release. “As rates of Alzheimer’s, dementia and other neurological diseases rise in our country and around the world, universities have a responsibility to lead the discovery of solutions that preserve memory, movement and quality of life. We all know someone who has been affected by a brain-related health issue, so this research is personal to all of us.”

Texas voters OK $3 billion for new dementia research institute

state funding

Texas voters on Nov. 4 overwhelmingly approved a ballot measure that provides $3 billion in state funding over a 10-year span for the newly established Dementia Prevention and Research Institute of Texas (DPRIT).

Thanks to the passage of Proposition 14, Texas now boasts the country’s largest state-funded initiative dedicated to dementia research and prevention, according to the Alzheimer’s Association. Up to $300 million in grants will be awarded during the 10-year funding period.

“This is a transformative moment for Texas and for the fight against Alzheimer’s and all other dementia,” said Joanne Pike, president and CEO of the Alzheimer’s Association. “Texans have chosen to invest in hope, innovation, and solutions for the millions of families affected by these devastating diseases. With the passage of Proposition 14, Texas is now poised to lead the nation in dementia research and prevention.”

The association says DPRIT will drive scientific breakthroughs, attract top-notch dementia researchers to Texas, and generate thousands of jobs statewide.

An estimated 460,000 Texans are living with dementia, the association says, and more than one million caregivers support them.

DPRIT is modeled after the Cancer Prevention and Research Institute of Texas (CPRIT). Since 2008, the state agency has awarded nearly $4 billion in grants to research organizations for cancer-related academic research, prevention programs, and product development.

An analysis by the McKinsey Health Institute found that investing in brain health initiatives like DPRIT could boost Texas’ GDP by $260 billion. Much of that GDP bump could benefit the Houston area, which is home to dementia-focused organizations such as UTHealth Houston Neurosciences, Baylor College of Medicine’s Center for Alzheimer’s and Neurodegenerative Diseases, the University of Texas Medical Branch at Galveston’s Collaborative Alzheimer’s Disease and Memory Disorders Program, and the Houston Methodist Research Institute’s John M. O’Quinn Foundation Neurodegenerative Disorders Laboratory.

The Greater Houston Partnership says DPRIT holds the potential “to elevate Texas — particularly Houston — as a hub for brain health research.”

State Sen. Joan Huffman, a Houston Republican, is one of DPRIT’s champions. She sponsored legislation this year to create the institute and ask Texas voters to approve the $3 billion in funding.

“By establishing the Dementia Prevention and Research Institute of Texas, we are positioning our state to lead the charge against one of the most devastating health challenges of our time,” Huffman said in May. “With $3 billion in funding over the next decade, we will drive critical research, develop new strategies for prevention and treatment, and support our health care community.”

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