3 energy transition companies with Houston ties pitch at international conference

seeing green

Three Houston companies pitched their energy transition technologies at an international competition. Photo via Getty Images

It's all hands on deck for pioneering technology to advance the energy transition and climatetech, and three companies with a Houston presence just took the national stage to showcase their climate change solutions.

The United Nations' 2021 COP26, hosted by the Net Zero Technology Centre in Glasgow, featured 10 startup organizations from across the globe battling it out to be crowned the Clean Energy Startup Champion.

The Ion Houston nominated five startups to the competition, and three made it to the finals. Syzygy Plasmonics, which is developing a new type of photocatalytic chemical reactor to reduce both cost and emissions for major commodity chemicals, claimed third place in the competition. The other two Ion nominees that pitched were:

  • S2G Energy, an Ion Smart Cities Accelerator participant, and cloud-based Energy Assistant platform that collects data and manages devices from almost any source to capture efficiency opportunities
  • Cemvita Factory, which applies synthetic biology to reverse climate change and transform CO2 into a usable material
"The Ion partnered with Net Zero with the vision to bring innovative and transformative startups out of the North/Central and South American market to the stage in Glasgow," says Jan E. Odegard, executive director of The Ion, in a statement. "We took a look around our own ecosystem both at The Ion and the Ion District and S2G Energy, Syzygy Plasmonics, and Cemvita Factory were easy and obvious nominations, as they were all working towards achieving net zero and are exemplars of startup innovation within our ecosystem."
Australia-based Mineral Carbonation Int'l, focused on carbon transformation, claimed first place and the title of top Clean Energy Startup Champion. PJP Eye, based in Japan and working on commercialised plant-based carbon batteries, came in second.
The second cohort of The Ion Smart and Resilient Cities Accelerator hosted a day full of thought leadership and startup pitches. Photo by Shobeir Ansari, Getty Images

4 startups pitch at virtual demo day for Houston accelerator program

resillience

In light of COVID-19, it is more relevant than ever to discuss and support startups with sustainability and resiliency in mind. At The Ion Smart and Resilient Cities Cohort 2 Demo Day, a virtual audience was reminded of that.

"So, 2020 has certainly been a year of unprecedented uncertainty and change for Houston, for Texas, for our country, and for our world," says Christine Galib, director of the accelerator. "The past few months in particular have been especially difficult as the global pandemic and civil unrest continue to spotlight systemic and structural scars on the face of humanity."

The virtual event was streamed on July 1 and hosted several thought leaders and presenters before concluding with pitches from four of the cohort companies.

"Through it all, and in a virtual world, Cohort 2 startups, the mentors, and our Ion team have been the change we wish to see in the world," Galib continues. "For these startups, failure is simply not an option — and neither is going at it alone."

Earlier this year, Galib announced the second cohort would be focused on solutions for Houston's air quality, water purification, and other cleantech needs. The program, backed by Intel, Microsoft, and TX/RX, launched on Earth Day and commenced shortly after. Cohort 3 is expected later this year.

Here are the four companies that pitched and the problems they are trying to solve.

Re:3D

re:3D was founded just down the street from NASA's Johnson Space Center to address the need for a mid-market 3D printing solution. The Houston-based startup also wanted to create their 3D printer that operates on recycled plastics in order to prevent excess waste.

"Where some see trash, we see opportunity," Charlotte Craff, community liaison at Re:3D says in her presentation.

Re:3D's clients can get their hands on their own Gigabot for less than $10,000, and the printer uses pellets and flakes from recycled plastics —not filament — to print new designs. Clients are also supported by the company with design software and training.

"We can help the city of Houston help meet its climate action and resilient city goals by transforming the way people think about recycling," Craff says about Re:3D's future partnerships with the city.

Water Lens

While two-thirds of the world is covered in water, only 0.7 percent is drinkable. And of that fresh water, 92 percent of it is used in agricultural and industrial settings. This is how Keith Cole, CEO and founder of Water Lens, set the scene for his presentation.

Water Lens, which is based in Houston with a lab located in Austin, wants to solve the problem of cities and countries running out of fresh, drinkable water by equipping huge water-using companies with a water testing tool.

"We've developed a system to let anyone test any water literally anywhere in the world," Cole says, citing clients like ExxonMobil, Shell, and Halliburton.

S2G Energy

S2G Energy, based in Mexico, is focused on optimizing energy management in order to digitize, empower, and unlock potential for cost-saving efforts and technology.

In his pitch, Geronimo Martinez, founder of S2G Energy, points out that restaurants, commercial buildings, and other adjacent industries can save money by implementing energy management solutions that come out of S2G Energy's expertise. In Mexico, Martinez says, clients include the top two restaurant chains that — especially during COVID-19 — need optimization and cost saving now more than ever.

Eigen Control

A refinery's distillation columns are expensive — their fuel use accounts for 50 of operating costs, says Dean Guma, co-founder and CEO of Houston-based Eigen Control.

Guma explains in his pitch how Eigen Control's technology can plug into existing sensors, model networks based on data, and employ the startup's artificial intelligent technology to reduce carbon emissions and save money on operating costs.

The Ion Smart and Resilient Cities Accelerator has selected its next cohort. Courtesy of The Ion

Houston accelerator announces newest cohort to tackle cleantech

Smart cities

As the world celebrated the 50th annual Earth Day on April 22, a Houston innovation organization announced a new group of startups for its accelerator program that will focus on cleantech solutions within the city of Houston and beyond.

The Ion's accelerator, which recently renewed its focus on resiliency, announced its second cohort with six startups that will create solutions for Houston's air quality, water purification, and other cleantech needs.

"Through leveraging the power of our local Ion community, The Ion Smart and Resilient Cities Accelerator is committed to solving challenges Houstonians face every day," says Christine Galib, senior director of accelerator programs at The Ion and the director of the accelerator, in a news release. "We connect participating startups with mentors, partners, and stakeholders, so they gain access to the resources they need to build, validate, and scale their technologies. Together, we are building a safer, smarter, and more accessible city for all Houstonians."

The program is supported by Intel, Microsoft, and TX/RX and has began its programming for the new cohort. The six startups selected for the program are:

  • Houston-based Eigen Control uses machine learning and chemical engineering models to combat rising CO2 emissions. Distillation process plants emit so much CO2 — and Eigen Control's processes are working to change that.
  • Houston-based Annapurna Solutions has cloud-based solutions for hazardous and solid waste management.
  • Mexico City-based S2G Energy focuses on sustainable and optimized solutions for businesses and governments with its energy-management-as-a-service technology.
  • Houston-based re:3D is a 3D-printing nonprofit that is democratizing small-scale manufacturing. Its Gigabot can use recycled and reclaimed materials for more sustainable and affordable production. The company, which has offices in Puerto Rico and Austin, donates a printer to someone making a difference with every 100 printers it sells.
  • Austin-based LifePod Corps is a nonprofit that provides disaster relief through renewable and sustainable technologies built and delivered by military veterans.
  • Houston-based Water Lens has created a real-time water data analytics platform for industries that use a lot of water — like oil and gas, agriculture, power generation, coal mining, and food processing. The technology allows for quicker, more reliable results.

The accelerator's leaders chose its theme for the cohort based on the City of Houston's Resilient Houston Strategy and Climate Action Plan. The program has identified these six startups as movers and shakers within these Smart Cities challenges.

"We are thrilled to collaborate with these startups to further develop Houston as one of America's smartest and most resilient cities," says Gabriella Rowe, executive director of The Ion, in the release. "By leveraging our resources and networks, the accelerator and Cohort 2 improve living conditions for all Houstonians. In this way, we stimulate our local economy with new jobs and economic opportunities."

Last year's inaugural cohort was announced in August and focused on resilience and mobility. After a demo day in December, the cohort continued its work in Houston through 15 pilot programs the startups had with the city. The third cohort is expected to launch toward the end of 2020, but the next theme has not yet been decided.

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Houston-area VC funding sunk to 5-year low in Q3 2025, report says

by the numbers

Fundraising for Houston-area startups experienced a summertime slowdown, sinking to a five-year low in the third quarter, according to the latest PitchBook-NVCA Venture Monitor.

The PitchBook-NVCA Venture Monitor shows startups in the Houston metro area attracted $204.4 million in venture capital from June through August. That’s 55 percent below the total for the previous quarter and 51 percent below the total for the third quarter of 2024.

More telling than those figures is that the third-quarter haul dropped to its lowest total for Houston-area startups since the fourth quarter of 2020, when $133.4 million in VC was raised. That was the third full quarter after health officials declared the pandemic in the U.S.

In Q3 2025, AI accounted for nearly 40 percent of VC deal volume in the U.S., Kyle Stanford, director of U.S. venture research at PitchBook, said in the report. And through the first nine months of 2025, AI represented 64 percent of U.S. deal value.

VC deal activity “has been nearly steady, emphasizing a consistent influx of companies, especially at the pre-seed and seed stages,” Stanford said. “Large deals remain the primary driver of market deal value, with almost all of these deals focused on AI.”

Bobby Franklin, president and CEO of NVCA, said that while fundraising hasn’t returned to pre-pandemic highs, deal values are going up in sectors such as AI, manufacturing, robotics and space tech, many of which have already exceeded their investment totals for all of 2024.

Meet 6 of the fastest-growing scaleup companies in Houston right now

meet the finalists

From raising funding rounds to earning FDA acceptance, some of Houston's most innovative companies have reached major milestones this year.

The 2025 Houston Innovation Awards will recognize their progress by bringing back our Scaleup of the Year category for the second year. The award honors an innovative later-stage startup that's recently reached a significant milestone in company growth.

Six breakthrough businesses have been named finalists for the 2025 award. They range from climatetech startups to a biotech company developing new drugs for neurodegenerative diseases and more.

Read more about these businesses and their impressive growth below. Then join us at the Houston Innovation Awards on Nov. 13 at Greentown Labs, when the winner will be unveiled at our live awards ceremony.

Tickets are now on sale for this exclusive event celebrating all things Houston Innovation. Corporate 10-packs, featuring reserved seating and custom branding, and individual tickets are still available. Secure your seats today.

Coya Therapeutics

Clinical-stage biotechnology company Coya Therapeutics (NASDAQ: COYA) has developed COYA-302 that enhances anti-inflammatory T cell function and suppresses harmful immune activity. The drug candidate is being advanced for several neurodegenerative diseases—including ALS, Alzheimer’s, Parkinson’s, and frontotemporal dementia—and has demonstrated promising reductions in neuroinflammation in preclinical and early clinical studies, according to the company.

Coya, founded in 2021, received FDA acceptance for its investigational new drug application for COYA-30 this summer. It closed its IPO in January 2023 for more than $15 million and added $26 million in PIPE funding that same year. Last year, the company secured an additional $15 million in PIPE funding.

Fervo Energy

Houston-based Fervo Energy is working to provide 24/7 carbon-free energy through the development of cost-competitive geothermal power. The company is developing its flagship Cape Station geothermal power project in Utah, which is expected to generate 400 megawatts of clean energy for the grid. The first phase of the project will supply 100 megawatts of power beginning in 2026. The second phase is scheduled to come online by 2028.

The company raised $205.6 million in capital to help finance the project earlier this year and fully contracted the project's capacity with the addition of a major power purchase agreement from Shell. Founded in 2017 by CEO Tim Latimer and CTO Jack Norbeck, Fervo is now a unicorn, meaning its valuation as a private company has surpassed $1 billion. In March, Axios reported Fervo is targeting a $2 billion to $4 billion valuation in an IPO.

Koda Health

Houston-based Koda Health has developed an advance care planning platform (ACP) that allows users to document and share their care preferences, goals and advance directives for health systems. The web-based platform guides patients through values-based decisions with interactive tools and generates state-specific, legally compliant documents that integrate seamlessly with electronic health record systems. The company also added kidney action planning to its suite of services for patients with serious illnesses last year.

Koda Health was founded out of the TMC's Biodesign Fellowship in 2020 by CEO Tatiana Fofanova, chief medical officer Dr. Desh Mohan, and chief technology officer Katelin Cherry. The company raised a $7 million series A earlier this year, and also announced major partnerships and integrations with Epic, Guidehealth, Medical Home Network, Privia Health and others.

Mati Carbon

Houston climatetech company Mati Carbon removes carbon through its Enhanced Rock Weathering (ERW) program that works with agricultural farms in Africa and India. Mati says the farmers it partners with are some of the most vulnerable to the impacts of climate change. The nonprofit won the $50 million grand prize in the XPRIZE Carbon Removal competition, backed by Elon Musk’s charitable organization, The Musk Foundation, earlier this year.

Mati Carbon scaled operations in India, Zambia, and Tanzania this year and has advanced its proprietary measurement, reporting and verification (MRV) platform, known as matiC, enabling seamless field data capture, chain-of-custody and carbon accounting at scale. The company was founded in 2022 by co-directors Shantanu Agarwal and Rwitwika Bhattacharya.

Molecule

Houston-based Molecule Software has developed an energy trading risk management (ETRM) platform that allows companies trading power, oil and gas, biofuels, renewables and more stay ahead as the markets evolve.

The company closed a Series B round earlier this year for an undisclosed amount. Sameer Soleja, founder and CEO of Molecule, said at the time that the funding would allow the company to "double down on product innovation, grow our team, and reach even more markets." The company was founded in 2012 by CEO Sameer Soleja and participated in the Surge Accelerator the same year.

Utility Global

Houston-based Utility Global has developed its proprietary eXERO technology that produces low-cost, clean hydrogen from water and industrial off-gases without requiring grid electricity.

First founded in 2018 by CEO Parker Meeks, the company participated in Greentown Labs and the Rice Alliance for Technology and Entrepreneurship programs. It raised a $55 million funding round earlier this year and launched commercial partnerships with ArcelorMittal Brazil and Hanwha Group in South Korea to deploy its hydrogen solutions at scale.

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Venus Aerospace picks up investment from Lockheed Martin Ventures

space funding

Venus Aerospace, a Houston-based startup specializing in next-generation rocket engine propulsion, has received funding from Lockheed Martin Ventures, the investment arm of aerospace and defense contractor Lockheed Martin, for an undisclosed amount. The product lineup at Lockheed Martin includes rockets.

The investment follows Venus’ successful high-thrust test flight of its rotating detonation rocket engine (RDRE) in May. Venus says it’s the only company in the world that makes a flight-proven, high-thrust RDRE with a “clear path to scaled production.”

Venus says the Lockheed Martin Ventures investment reflects the potential of Venus’ dual-use technology for defense and commercial uses.

“Venus has proven in flight the most efficient rocket engine technology in history,” Venus co-founder and CEO Sassie Duggleby, a board member of the Texas Space Commission, said in a news release. “With support from Lockheed Martin Ventures, we will advance our capabilities to deliver at scale and deploy the engine that will power the next 50 years of defense, space, and commercial high-speed aviation.”

Chris Moran, executive director and general manager of Lockheed Martin Ventures, said Lockheed Martin has been a longtime supporter of early-stage “transformational” technologies.

“Our investment in Venus Aerospace reflects a conviction that next-generation propulsion will define which nations lead in space and defense for decades to come,” Moran added in the release. “We are committed to helping Venus scale this technology and integrate it into critical systems.”

Since its founding in 2020, Venus has secured more than $106 million in funding. In addition to Lockheed Martin Ventures, investors include Airbus Ventures, America’s Frontier Fund, Trousdale Ventures, and Prime Movers Lab. Supporters of Venus include NASA, the Air Force Research Lab and the Defense Advanced Research Projects Agency (DARPA).
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