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Houston clean-tech co. with NASA ties wins big at SXSW 2025

And the winner is...

Helix Earth was one of the winners of SXSW's 2025 pitch competition. Photo by Sergei A/Pexels

Houston had a strong showing at the 2025 SXSW Pitch showcase in Austin, with two local startups claiming top prizes, including a novel clean-tech startup.

Clean-tech company Helix Earth, which spun out of Rice University and was incubated at Greentown Labs, won in the Smart Cities, Transportation & Sustainability contest.

"We faced impressive competition from a well-chosen set of finalists, and we're honored to be chosen as the winners. One of the judges even commented, ‘Who knew you could make air conditioning sexy,’” Brad Husick, Helix's co-founder and chief business officer, said in a release.

Helix Earth was launched in 2022 and is known for its space capsule air filtration system that was co-developed for NASA. The commercial air conditioner add-on technology, now in a pilot phase, has been used to retrofit HVAC systems for commercial buildings and can save up to 50 percent of the net energy, cutting down on emissions and operating costs, according to the company. Its co-founder and CEO Rawand Rasheed was named to the Forbes 30 Under 30 Energy and Green Tech list for 2025.

“This win validates our mission to drive sustainable innovation in commercial air conditioning and beyond. We are excited about the future of Helix Earth and the impact we will have in reducing energy consumption and emissions," Rasheed said in a statement.

Little Place Labs, a Houston space data startup, also walked away a winner in the Security, GovTech & Space competition. The company uses advanced AI and machine learning to deliver near-real-time space analytics for both ground and space-based applications. Its software aims to help first responders, mission planners and decision-makers detect anomalies and make informed decisions quickly. It was co-founded in 2020 at Oxford by Houstonian and CEO Bosco Lai and Gaurav Bajaj and participated in the 2023 AWS Space Accelerator.

"This all started with a simple mission: To deliver real-time space insights to help first responders, mission planners, and decision-makers act before problems arise,” Little Place Labs wrote on LinkedIn. "Today, that mission feels even stronger."

One of SWSX's marquee events, the pitch competition, held March 8-10, featured 45 finalists, selected from 589 applicants, in nine categories.

Two other Houston companies were finalists this year:
  • Trez, a Latino-focused fintech company that uses AI and voice-command payroll through WhatsApp to provide culturally relevant payroll and streamline financial operations for Latino business owners.
  • Tempesst Droneworx, a veteran-owned software company that's Harbinger software providing real-time contextual intelligence for early warning detection, reducing time to decision and speeding time to action.

Jesse Martinez, founder of invincible, and Anu Puvvada of KPMG were two judges representing Houston.

According to SXSW, 647 companies have participated in SXSW Pitch over the years, with over 93 percent receiving funding and acquisitions totaling nearly $23.2 billion. See the full list of 2025 winners here.

From Your Site Articles
At a recent SXSW panel, four Houston energy experts discussed the importance of research, commercialization, and more in Houston to drive the energy transition. Photo via Getty Images

Experts address Houston's energy transition role — from research to commercialization

HOUSTON @ SXSW

Every part of the energy industry is going to have a role in the energy transition — from the universities where the research and development is happening to the startups and the incumbent industry leaders, as a recent SXSW panel discussed.

“We are well known in Houston for being the energy capital of the world," Jane Stricker, executive director of the Houston Energy Transition Initiative, says as moderator of the panel. "The industry typically comes together with stakeholders to think about the solutions and how to solve this dual challenge of continuing to provide more energy to the world but doing it in a way that significantly reduces emissions at the same time.”

The panel, entitled "Ground Zero: Creating Pathways from Research to Scale Deployment," was put on by HETI, an organization under the Greater Houston Partnership, and took place Sunday, March 12, in Austin at SXSW.

“I often say that I believe Houston is ground zero for the transition because we have this unique combination of assets, infrastructure, innovation, research at universities, and a collective understanding of the importance of energy to people’s lives that allows us to tackle this problem in new ways," she continues.

Sticker was joined by Paul Cherukuri, vice president for innovation at Rice University; Juliana Garaizar, chief development and investment officer at Greentown Labs; and Tara Karimi, co-founder and CTO of Cemvita Factory. The panel highlighted the challenges facing Houston as it promises to lead the energy transition.

For Cherukuri, whose innovation-focused position was newly created when he was appointed to it last August, it's a pivotal moment for research institutions.

"It's really an exciting time in Houston because universities are changing," says Cherukuri. "Rice University itself is changing in dramatic ways, and it's a great opportunity to really plug into the energy transition inside of Houston."

The role he plays, as he explains, is to connect Rice innovators to the rest of the city and the world.

"We have to partner through the accelerators as well as with with companies who can catch what we've made and take it to scale," he continues. "That's uniquely something that we can do in Houston. It's not something that a lot of cities can do."

Representing the scaling efforts is Greentown Labs, and Garaizar explains how the Massachusetts-based organization, which has its second outpost in Houston, connects its member companies to corporate partners that can become funders, pilot partners, customers, and more. But scaling can only be accomplished with the right technologies and the proper funding behind them.

"Sixty percent of the technologies that are going to be used to decarbonize the world haven't yet been invented," she says on the panel. "So, there's a huge pull for technology right now. And we see people who are only on the private equity space now finally invested in a lot of earlier series like series A, but there's still some road to to be made there."

Houston-based Cemvita Factory is in the scale phase, and Karimi explains how she's actively working with companies to apply the company's unique biotechnology to convert CO2 to natural resources to accommodate each customer's needs. Cemvita is on the front lines of interacting with incumbent energy businesses that play a major role in the future of energy.

"The way we communicate with energy companies, we tell them that us to be the innovation arm for you and we work together," Karimi says. "I think it's everybody needs to understand it's a transition. There is no way to just change the way that chemicals are produced just immediately and replace it with something new. It's a transition that needs both aspects."

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This article originally ran on InnovationMap.

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Solid-state generator company secures $9M in financing, names CTO

fresh financing

ATS Energy has secured a $9 million investment to help commercialize its solid-state generator technology, a representative from the company tells Energy Capital.

The Colorado-based company is a member of Houston's Greentown Labs climatech community and was named the second most-promising startup in the Innovations for Traditional Energy, Electricity, & the Grid track during CERA Week's Energy Venture Day and Pitch Competition in March.

ATS's technology converts industrial waste heat into electricity via its proprietary thermoelectric cartridges, according to a news release. The cartridges convert the otherwise wasted thermal energy directly into usable electricity with no turbine, no moving parts and no emissions.

"We have spent years building a proven track record of breakthrough technology," Doug Hudson, CEO of ATS Energy, said in the release. "What has developed over the past year is that markets are moving toward ATS Energy, said in the release. We've moved well beyond early interest to commercial commitments, active proposals and a pipeline that continues to expand across multiple industrial sectors. That puts us in a tremendous position to meet the moment in delivering energy to industry. This investment responds to real commercial opportunity, and it positions ATS Energy to scale production, meet customer demand faster, and drive commercial deployments."

According to the release, ATS plans to complete and deploy its first commercial generator using the thermoelectric cartridges by mid-2027. The company shared that it plans to begin revenue-generating operations next year, as well.

ATS has also named Edward Ganja as its new CTO. Ganja previously served as a technology advisor for ATS and spent more than 30 years at Shell, most recently as vice president of catalyst and analytical technology in Houston, according to LinkedIn.

"Having worked closely with the team as a Technology Adviser, I am thrilled to step into the Chief Technology Officer role to lead our technology strategy and advanced materials scale-up," Ganja shared in a LinkedIn post. "ATS is tackling crucial energy challenges, and I look forward to working with our talented team, partners, and industry colleagues to accelerate our commercial development and technological footprint."

A representative from the company shares that ATS has three employees in Texas, including two in Houston. The company is targeting industrial facilities, including Gulf Coast refineries and petrochemical plants, for its production model, which will leverage established manufacturing capabilities to help quickly scale its commercial pipeline.

"We are scaling manufacturing with the discipline required for commercial-grade industrial deployment, moving beyond proof-of-concept to deliver mission-critical equipment," Terry Hill, COO of ATS, added in the release. "We've been building the supply chain, identifying the right manufacturing partners and putting the processes in place to move toward repeatable production. By leveraging contract manufacturing, we can focus our capital on the technology, the product and our customers rather than building factories. Just as importantly, we're working to reduce the time between installations so we can respond to the demand we're seeing in the market."

ATS won the prestigious Earthshot Prize in the Fix Our Climate category in 2024. The Earthshot Prize, founded by Prince William, awards £1 million to five energy startups each year over a decade.

Trump says he's ending restrictions on methane emissions from oil drilling

In the News

President Donald Trump said Tuesday that his administration is “terminating” a Biden-era rule that aimed to cut planet-warming emissions of methane from oil and gas drilling.

Trump said during a campaign rally in Texas that the change would save companies and consumers billions of dollars and unlock 210 million barrels of oil. That’s equivalent to about 10 days of U.S. petroleum consumption.

The move aims to encourage more domestic drilling as Trump faces criticism over high fuel prices amid the war in Iran.

Methane is responsible for about a third of planet-warming greenhouse gas emissions, scientists estimate.

Cuts in methane emissions have emerged in recent years as a global priority to slow the rate of climate change. Oil and gas operations are the largest industrial source of methane, which is the main component in natural gas and far more potent to the atmosphere than carbon dioxide in the short term.

The invisible gas leaks from equipment and is released into the atmosphere or burned off as a waste product by oil drillers.

Environmental Protection Agency Administrator Lee Zeldin previewed the changes last month, saying they would eliminate the agency’s “Super Emitter Program” that requires companies to investigate and repair major methane releases from oil and natural gas facilities. The agency would also set less restrictive standards for small oil and gas wells.

Trump said during Tuesday's rally in Lubbock for Texas Republican Senate candidate Ken Paxton that Biden's plan “crushed the small operators” with crippling regulations.

“I’m officially terminating Biden’s expensive and unnecessary methane regulations to save consumers and energy producers $45 billion in costs,” Trump said.

The loosening of the emissions rule comes as Trump and Republicans in Congress have been methodically dismantling climate policies enacted under former President Joe Biden. That's included the revocation of a scientific finding that was central to U.S. action on greenhouse gas emissions, lower fuel economy standards for vehicles and a move to repeal emission restrictions for coal and natural gas power plants.

Environmental groups said the latest rollback will let companies continue polluting the atmosphere with gas that could be captured and provide energy to millions of households.

Environmental Defense Fund President Fred Krupp said it gives a “free pass” to companies at the expense of American consumers.

“EPA should be fighting this waste, not making it easier,” he said.

Zeldin has said the methane rule would have cost $18 billion and was holding back the U.S. energy industry.

The Biden methane rule was announced by officials including former Vice President Kamala Harris during a 2023 U.N. climate conference in the United Arab Emirates.

Federal officials under Biden said it would prevent an estimated 58 million tons (52.6 million metric tonnes) of methane emissions by 2038 and reduce other pollutants that cause health problems.

By 2034, the rule was projected to yield $98 billion in benefits. That figure was derived by calculating the future “social costs” of greenhouse gas emissions on public health and the environment, an approach rejected by Trump's EPA.

While previous regulations focused only on new oil and gas wells in the U.S., the Biden rule regulated existing wells. Operators also would have needed to plug leaking methane from smaller wells that produce just 6% of the nation’s oil and gas while accounting for up to half of all methane emissions from oil and gas fields.

The final rule was published in 2024. The EPA last year imposed an 18-month delay to give companies time to meet new inspection requirements and other provisions.

The rule was crafted to be coordinated with a methane fee, approved in the 2022 climate law. The fee program would have levied a “waste emissions charge” of as much as $1,500 per metric ton of methane on energy producers that exceed a certain level of methane emissions.

The fee marked the first time the U.S. government directly imposed a fee, or tax, on greenhouse gas emissions. Congress repealed it weeks after Trump took office.

Officials also tried to rein in methane from oil and gas under former President Barack Obama, but that effort was scaled back during Trump's first term.

Houston energy company expands battery storage deal with Samsung

battery boost

Houston-based Alpha Omega Power, which develops, invests in and runs utility-scale battery energy storage systems, has signed a deal to add more storage capacity from a subsidiary of South Korean tech giant Samsung.

The latest deal adds 1 gigawatt-hour of storage capacity to Alpha Omega’s existing contract with Samsung SDI America, bringing total storage capacity to 1.5 gigawatts.

The Michigan-based Samsung subsidiary is manufacturing the systems’ cells and modules at a plant in Indiana, Alpha Omega said. Samsung SDI plans to deliver them by the end of this year.

“This second agreement strengthens our domestic supply chain supporting the next generation of energy infrastructure,” Paul Choi, CEO of Alpha Omega, said in a press release.

Houston-based Fengate Asset Management owns Alpha Omega. In 2023, they formed a partnership to build, acquire, and operate utility-scale battery energy storage projects in the U.S. Their 200-megawatt Vertus battery facility in Galveston County came online this month.

Alpha Omega plans to use the Samsung SDI systems to improve grid reliability and meet greater demand for power in markets served by the Electric Reliability Council of Texas (ERCOT) and the Salt Lake City-based Western Electricity Coordinating Council.

ERCOT covers 90 percent of power customers in Texas. The Western Interconnection grid covers all or part of 14 states, as well as parts of Canada and Mexico.

Samsung SDI is the only non-Chinese supplier of rigid-metal “prismatic” energy storage batteries in North America, according to Alpha Omega.

“With strong durability and fire safety compared with pouch-type batteries, its prismatic batteries have helped the company meet the stringent requirements of U.S. energy companies,” Alpha Omega said.

The Samsung Battery Box 1.7 equipment being purchased by Alpha Omega offers AI-powered algorithms and 25 years of continuous use, along with greater energy density than its predecessor. It also features the ability to directly inject fire-extinguishing agents on a module-by-module basis.

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