And the winner is...

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

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.

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A View From HETI

Greenhouse gases continue to rise, and the challenges they pose are not going away. Photo via Getty Images

For the past 40 years, climate policy has often felt like two steps forward, one step back. Regulations shift with politics, incentives get diluted, and long-term aspirations like net-zero by 2050 seem increasingly out of reach. Yet greenhouse gases continue to rise, and the challenges they pose are not going away.

This matters because the costs are real. Extreme weather is already straining U.S. power grids, damaging homes, and disrupting supply chains. Communities are spending more on recovery while businesses face rising risks to operations and assets. So, how can the U.S. prepare and respond?

The Baker Institute Center for Energy Studies (CES) points to two complementary strategies. First, invest in large-scale public adaptation to protect communities and infrastructure. Second, reframe carbon as a resource, not just a waste stream to be reduced.

Why Focusing on Emissions Alone Falls Short

Peter Hartley argues that decades of global efforts to curb emissions have done little to slow the rise of CO₂. International cooperation is difficult, the costs are felt immediately, and the technologies needed are often expensive. Emissions reduction has been the central policy tool for decades, and it has been neither sufficient nor effective.

One practical response is adaptation, which means preparing for climate impacts we can’t avoid. Some of these measures are private, taken by households or businesses to reduce their own risks, such as farmers shifting crop types, property owners installing fire-resistant materials, or families improving insulation. Others are public goods that require policy action. These include building stronger levees and flood defenses, reinforcing power grids, upgrading water systems, revising building codes, and planning for wildfire risks. Such efforts protect people today while reducing long-term costs, and they work regardless of the source of extreme weather. Adaptation also does not depend on global consensus; each country, state, or city can act in its own interest. Many of these measures even deliver benefits beyond weather resilience, such as stronger infrastructure and improved security against broader threats.

McKinsey research reinforces this logic. Without a rapid scale-up of climate adaptation, the U.S. will face serious socioeconomic risks. These include damage to infrastructure and property from storms, floods, and heat waves, as well as greater stress on vulnerable populations and disrupted supply chains.

Making Carbon Work for Us

While adaptation addresses immediate risks, Ken Medlock points to a longer-term opportunity: turning carbon into value.

Carbon can serve as a building block for advanced materials in construction, transportation, power transmission, and agriculture. Biochar to improve soils, carbon composites for stronger and lighter products, and next-generation fuels are all examples. As Ken points out, carbon-to-value strategies can extend into construction and infrastructure. Beyond creating new markets, carbon conversion could deliver lighter and more resilient materials, helping the U.S. build infrastructure that is stronger, longer-lasting, and better able to withstand climate stress.

A carbon-to-value economy can help the U.S. strengthen its manufacturing base and position itself as a global supplier of advanced materials.

These solutions are not yet economic at scale, but smart policies can change that. Expanding the 45Q tax credit to cover carbon use in materials, funding research at DOE labs and universities, and supporting early markets would help create the conditions for growth.

Conclusion

Instead of choosing between “doing nothing” and “net zero at any cost,” we need a third approach that invests in both climate resilience and carbon conversion.

Public adaptation strengthens and improves the infrastructure we rely on every day, including levees, power grids, water systems, and building standards that protect communities from climate shocks. Carbon-to-value strategies can complement these efforts by creating lighter, more resilient carbon-based infrastructure.

CES suggests this combination is a pragmatic way forward. As Peter emphasizes, adaptation works because it is in each nation’s self-interest. And as Ken reminds us, “The U.S. has a comparative advantage in carbon. Leveraging it to its fullest extent puts the U.S. in a position of strength now and well into the future.”

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Scott Nyquist is a senior advisor at McKinsey & Company and vice chairman, Houston Energy Transition Initiative of the Greater Houston Partnership. The views expressed herein are Nyquist's own and not those of McKinsey & Company or of the Greater Houston Partnership. This article originally appeared on LinkedIn.

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