10 most-promising energy tech startups named at annual Houston event

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Over 500 people attended the 21st annual Energy Tech Venture Forum hosted by the Rice Alliance. Photo courtesy of Rice

Investors from around the world again identified the most-promising energy tech startups at the Rice Alliance for Technology and Entrepreneurship's annual event.

"The recognition that Houston is the epicenter of energy transition is growing. It's something we are championing as much as possible so that the world can know exactly what we're doing," Paul Cherukuri, chief innovation officer at Rice University says at the 21st annual Energy Tech Venture Forum.

The event took place during the inaugural Houston Energy and Climate Startup Week, and nearly 100 startups from 23 states and seven countries pitched investors Wednesday, September 11, and Thursday, September 12. At the conclusion of the event, the investors decided on 10 companies deemed "most promising" from the presentations.

This year's selected companies are:

  • Revterra, a Houston-based company innovating within kinetic battery technology to enable faster and cleaner electric vehicle charging.
  • From Austin, 360 Mining is a modular data center provider for the oil and gas producers.
  • New York company Andium is a centralized and optimized operations platform for large energy companies.
  • Elementium Materials, a local Katy-based company, created its battery technology that originated out of MIT.
  • Splight is a San Mateo, California-based technology platform that provides real-time operational data based on inverter-based resources assets.
  • Los Angeles-based Mitico, one of the Rice Alliance Clean Energy Accelerator's class 4 participants, provides services and equipment for carbon capture through its granulated metal carbonate sorption technology.
  • From Cambridge, Massachusetts, Osmoses is changing the way molecular gas separations are performed within the chemical, petrochemical, and energy industries.
  • Rice Alliance Clean Energy Accelerator class 4 participant CORROLYTICS, based in Houston, has a corrosion detection and monitoring technology. The company also won over the crowd and secured the People's Choice win too.
  • Ardent, based in New Castle, Delaware, has developed a membrane technology for point-source carbon capture.
  • New Haven, Connecticut-based Oxylus Energy produces an alternative fuel from converting CO2 into green methanol.

Last year, investors named its selection of most-promising companies at Rice.

"We have a responsibility as a city to lead energy transition," Cherukuri continues. "A lot of the investments we're making at Rice are going to change the world."

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Texas is no longer America's No. 1 most financially distressed state

Report Rebound

After spending an unfortunate year as the No. 1 state with the most people in financial distress, Texas has slightly recovered. But the Lone Star State isn't out of the woods yet: it's still among the five most financially distressed states in America for 2026.

According to WalletHub's 2026 report, Texas sits in the No. 4 spot this year, while Kansas, Louisiana, and Florida moved up to become the top three states with the most financially distressed residents.

The personal finance website's experts compared all 50 states based on residents' average credit scores, the share of people with "accounts in distress" (meaning an account that's in forbearance or has deferred payments), the one-year change in bankruptcy filings from March 2025, and search interest indexes for "debt" and "loans."

Despite improving in the overall ranking, the study found Texas has had the fourth-biggest spike in bankruptcy filings nationally from March 2025 to March 2026. Texas residents also have the 10th worst average credit scores in the country, according to the findings.

This is how Texas ranked across the study's six key dimensions, where No. 1 means "most distressed:"

  • No. 4 – Change in bankruptcy filings from March 2024 to March 2025 rank
  • No. 5 – Average number of accounts in distress rank
  • No. 8 – "Loans" search interest index rank
  • No. 8 – People with accounts in distress rank
  • No. 12 – Credit score rank
  • No. 13 – “Debt” search interest index rank

It feels like inflation and affordability have been top-of-mind for many Americans over recent years, and uncertainty around the national economy also adds another level of distress. That's especially true for Houston residents, which were dubbed the second most financially distressed people in America earlier in 2026.

"Americans have faced significant financial challenges in recent years, as inflation, shifting unemployment levels, public health emergencies, and natural disasters have made it more difficult for many households to stay on top of their bills," the report said.

The top three states that have the least financially distressed residents are Maine (No. 50), Rhode Island (No. 49), and Hawaii (No. 48).

The top 10 most financially distressed states in America for 2026 are:

  • No. 1 – Kansas
  • No. 2 – Lousiana
  • No. 3 – Florida
  • No. 4 – Texas
  • No. 5 – South Carolina
  • No. 6 – Wyoming
  • No. 7 – Georgia
  • No. 8 – California
  • No. 9 – North Carolina
  • No. 10 – Kentucky
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A version of this article originally appeared on CultureMap.com.

European spacecraft developer expands to Houston with U.S. business, new lab

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European aerospace manufacturer The Exploration Company has established its first U.S. entity and named Space City as its headquarters.

The company announced earlier this month that it has launched TEC Federal to support U.S. government customers and agencies, and to scale The Exploration Company's engineering operations in the country.

Mark Kirasich serves as president of TEC Federal. Kirasich most recently served as the senior director of human spaceflight at Blue Origin after a nearly 40-year career at NASA.

The Exploration Company is developing the reusable Nyx space vehicle. Nyx is designed to take off from any heavy launcher in the world. It will then dock at space stations, retrieve up to 3,000 kilograms of cargo, splash down and return the cargo to Earth. The company aims to make Nyx fully reusable for up to 10 missions, making it a more affordable and sustainable option for aerospace missions.

The Exploration Company completed a successful drop test of the spacecraft in May in the Mojave Desert. The company says Nyx is slated to perform its first flight demonstration in 2028.

In addition to launching the Houston business, The Exploration Company also opened its new Rapid Innovation Lab near Houston's NASA Johnson Space Center on Space Park Drive.

The Exploration Company opened its Rapid Innovation Lab earlier this month. Photo via LinkedIn

The Rapid Innovation Lab features a full-scale mockup of the future Nyx crew capsule as well as ongoing development and testing of the Nyx cargo capsule, according to the company.

The Exploration Company says the new lab will allow its engineers, designers, and operators to prototype and test crew interfaces. It will also support partnerships with NASA personnel and astronauts.

“Houston gives us direct access to the people and expertise that have built and operated human spaceflight systems for decades. We’re excited to invest and expand around that— engineers, operators, and astronauts working together and moving quickly towards building a crew capsule.” Hélène Huby, founder and CEO of The Exploration Company, said in a blog post.

According to The Houston Chronicle, The Exploration Company has about 30 employees in the Houston area.

The company was founded in 2021 by Huby, a French rocket scientist, and has raised more than $350 million in venture capital. It operates out of Germany, France, Luxembourg, Spain and Italy, with offices in the U.S. and the United Arab Emirates. It is also developing a reusable, high-thrust rocket engine known as Storm.

Exciting XSpace expansion plans + more top Houston innovation headlines

Trending Topics

Editor's note: The top Houston innovation headlines for the first half of July include XSpace's expansion and KBR's C-suite hires. Here is a recap of the five most-read InnovationMap stories published July 1-15, 2026:

1. XSpace plans $250M industrial condo expansion with RAFA Racing Club

nullXSpace plans $250M industrial condo expansion with RAFA Racing Club

Houston-based XSpace Group has teamed up with two other Houston companies, RAFA Racing Club and Maximo Capital, to develop five industrial condo projects that pair flex space and high-end car storage space with a members-only clubhouse for motorsports enthusiasts. The five projects will be built in the Dallas-Fort Worth; Miami-Boca Raton; Charlotte-Mooresville, North Carolina; Phoenix-Scottsdale; and Los Angeles markets. Continue reading.

2. KBR names C-suite duo to lead $5.3B government services spinoff

In advance of the spinoff of its Mission Technology Solutions unit, Houston-based KBR has made two C-suite hires for the new business. Michael LaRouche is coming aboard as president and CEO of the spinoff, currently called SpinCo, on Sept. 26. Nicholas Veasey joined as executive vice president and chief financial officer on July 1. Continue reading.

3. Experts: Houston's VC ecosystem has set the foundation — now we need scale

Fervo Energy went public earlier this summer. The Houston geothermal company priced its IPO at $27 per share, raised $1.89 billion, and opened the next morning at a market capitalization north of $10 billion. By most measures, it is the largest venture-backed cleantech IPO in history and an unambiguous win for Houston. It’s also a useful moment to look at where Houston's venture ecosystem stands and where it can go. The highlight: Houston's venture ecosystem has real foundations and, with increased company formation activity, can grow into the scale our city's ambitions deserve. Continue reading.

4. $12M pharmaceutical manufacturing facility to be built in Sugar Land

A nearly $12 million drug manufacturing facility is coming to Sugar Land. City leaders in Sugar Land recently approved a $1.3 million performance-based incentive for DeliverIt Group, a Sugar Land-based provider of specialty pharmacy, infusion therapy and clinical care services, for the development of the 60,000-square-foot facility. Continue reading.

5. Walmart expands drone delivery service to 8 new Houston-area stores

More Walmart delivery drones are now buzzing around Houston-area skies. In January, Walmart launched its drone delivery service in partnership with Wing at five locations in the Houston area. The retail giant just added eight more stores to its Houston-area drone delivery network. Wing says the expansion makes drone delivery available to more than 1 million residents of the Houston area. Continue reading.

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