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

top companies

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."

From Your Site Articles
This week's roundup of Houston innovators includes Jai Shah of Kahuna, Cindy Taff of Sage Geosystems, and Patrick Flam of Revterra. Photos courtesy

3 Houston innovators to know this week

who's who

Editor's note: Each week, I'm introducing you to three Houston innovators to know — three individuals behind recent innovation and startup news stories in Houston as reported by InnovationMap. Learn more about them and their recent news below by clicking on each article.

Jai Shah, CEO of Kahuna Workforce Solutions

Kahuna CEO Jai Shah shares how he plans on deploying the $21 million his Houston company just raised. Photo courtesy of Kahuna

With a recent $21 million series B funding round set to fuel more growth and expand an impressive client roster, Kahuna Workforce Solutions is riding a big wave into 2024.

CEO Jai Shah tells InnovationMap that the Houston skills management software service company’s Hawaiian name captures their style.

“Kahuna is that kind of expert, competent leader in a tribe or family,” Jai says. “That’s all because we had this concept of really wanting to be providing a very..family-oriented consulting approach. Treat our customers like family, and with respect, love and really just try and deliver on that promise.” Continue reading.

Cindy Taff, CEO of Sage Geosystems

Cindy Taff of Sage Geosystems explains why she's so optimistic about geothermal and her company's technology. Photo courtesy of Sage

Geothermal energy is an integral part of decarbonizing the energy industry, and Sage Geosystems CEO Cindy Taff believes her company's tech has what it takes to lead the way.

Founded in Houston in 2020, Sage Geosystems is focused on two business lines — energy storage and geothermal. In addition to developing these technologies, Taff says Sage has "cracked the code" on both reducing costs and maximizing electricity output. Sage has customers ranging from Nabors, the world’s largest land-based drilling company, and Virya LLC, an investor in climate ventures with high impact of eliminating global greenhouse gas emissions or sequestering CO2. Continue reading.

Patrick Flam, CFO of Revterra

Revterra was selected from among 10 finalists receiving up to $1 million piloting opportunities. Photo via ADNOC

Revterra, which produces novel batteries made from recycled steel, has been awarded a million-dollar piloting opportunity by ADNOC following a global competition. The ADNOC Decarbonization Technology Challenge, in collaboration with AWS, bp, Hub71, and the Net Zero Technology Centre, sought to find emerging climate tech innovations that are ready for scale.

At the event in Dubai, Revterra was selected from among 10 finalists receiving up to $1 million piloting opportunities. In addition to the $1 million, they will gain access to facilities and expertise at the ADNOC Research and Innovation Center in Abu Dhabi.

“We are thrilled to win this opportunity,” Patrick Flam, CFO of Revterra, says in a news release. “At Revterra, we have developed an environmentally friendly battery that doesn’t rely on metals like lithium, nickel, or cobalt.” Continue reading.

Revterra was selected from among 10 finalists receiving up to $1 million piloting opportunities. Photo via ADNOC

Houston sustainability startup secures million-dollar prize after global competition

pilot secured

A Houston sustainability startup has secured a major win on a global scale.

Revterra, which produces novel batteries made from recycled steel, has been awarded a million-dollar piloting opportunity by ADNOC following a global competition.

The ADNOC Decarbonization Technology Challenge, in collaboration with AWS, bp, Hub71, and the Net Zero Technology Centre, sought to find emerging climate tech innovations that are ready for scale.

The contest drew 650 applicants from across 50 countries, and applicants specialized in innovations in oil and gas emissions reduction, nature-based solutions, carbon capture utilization and storage, digital applications, new energies, oil and gas emissions reduction and advanced materials for decarbonization.

At the event in Dubai, Revterra was selected from among 10 finalists receiving up to $1 million piloting opportunities. In addition to the $1 million, they will gain access to facilities and expertise at the ADNOC Research and Innovation Center in Abu Dhabi.

“We are thrilled to win this opportunity,” Patrick Flam, CFO of Revterra, says in a news release. “At Revterra, we have developed an environmentally friendly battery that doesn’t rely on metals like lithium, nickel, or cobalt. Instead, our 2MW batteries are built using recycled steel and rely on rotational energy storage technology to achieve maximum power with a minimal environmental footprint. I am excited to work with our new partners at ADNOC to further develop our solution and deploy it across ADNOC’s operations.”

ADNOC is accelerating the decarbonization of its operations and looks to reduce its carbon intensity by 25 percent by 2030.

“ADNOC is leveraging partnerships and innovative climate technologies to accelerate our decarbonization goals and responsibly enable the energy transition,” Musabbeh Al Kaabi, ADNOC executive director for Low Carbon Solutions and International Growth, adds in the release. “The ADNOC Decarbonization Technology Challenge supports this objective, and we congratulate Revterra for emerging victorious amongst very competitive submissions from around the world.

"We look forward to working with Revterra to unlock cutting-edge solutions that will enhance efficiencies and continue decarbonizing our operations,” he continues.

-----

This article originally ran on EnergyCapital.

This week's roundup of Houston innovators includes Ben Jawdat of Revterra, Pete O'Heeron of FibroBiologics, and Jay Manouchehri of Fluence Analytics. Photos courtesy

3 Houston innovators to know this week

who's who

Editor's note: In this week's roundup of Houston innovators to know, I'm introducing you to three local innovators across industries — from health tech to clean energy — recently making headlines in Houston innovation.

Ben Jawdat, CEO and founder of Revterra

Ben Jawdat, CEO and founder of Revterra, joins the Houston Innovators Podcast. Photo via LinkedIn

Ben Jawdat founded Revterra in Houston based on a unique kinetic energy storage technology. The company has created away to better optimize existing grid-based electric vehicle charging ports while still minimizing a carbon footprint. The startup hopes to be a major player within the energy transition.

"We really want to be an enabling technology in the renewable energy transition," Jawdat says. "One part of that is facilitating the development of large-scale, high-power, fast-charging networks. But, beyond that, we see this technology as a potential solution in other areas related to the clean energy transition."

He shares more about what's next for Revterra on the podcast. Read more and listen to the episode.

Pete O'Heeron, CEO and chairman of FibroBiologics

Pete O'Heeron leads FibroBiologics as CEO and chairman. Photo via Fibrobiologics.com

FibroBiologics, which is developing fibroblast cell-based therapeutics for chronic diseases, launched a campaign with equity crowdfunding platform StartEngine. The platform lets anyone — regardless of their net worth or income level — to invest in securities issued by startups.

The funding, according to a press release, will be used to support ongoing operations of Fibrobiologics and advance its clinical programs in multiple sclerosis, degenerative disc disease, wound care, extension of life, and cancer.

"We're excited to partner with StartEngine on this campaign. StartEngine has over 600,000 investors as part of their community and has raised over half a billion dollars for its clients," says FibroBiologics' Founder and CEO Pete O'Heeron, in the release. Read more.

Jay Manouchehri, CEO of Fluence Analytics

Fluence Analytics has exited to a multinational Japanese engineering and software giant. Image via FluenceAnalytics.com

Yokogawa, which has its US operations based in Sugar Land, acquired Fluence Analytics Inc. in a deal announced last week. The terms of the deal were not disclosed and, effective immediately, the company operate as Yokogawa Fluence Analytics. Jay Manouchehri, who joined the company in 2022, will continue to serve as CEO of the entity.

“Combining forces with Yokogawa Electric enables us to capture the full value of our unique data sets, and we can't wait to deliver this added value to our customers," Manouchehri says in a news release. "Together, we will enable autonomous operations and digital transformation in the polymer and biopharma industries."

Founded in 2012 in New Orleans, Fluence Analytics moved to Houston in 2021 following a $7.5 million venture capital raise led by Yokogawa Electric Corp., which has its North American headquarters in Sugar Land. Read more.

Ben Jawdat, CEO and founder of Revterra, joins the Houston Innovators Podcast. Photo via LinkedIn

How this Houston innovator's tech is gearing up to impact EV charging, energy transition

houston innovators podcast episode 172

With more and more electric vehicles on the road, existing electrical grid infrastructure needs to be able to keep up. Houston-based Revterra has the technology to help.

"One of the challenges with electric vehicle adoption is we're going to need a lot of charging stations to quickly charge electric cars," Ben Jawdat, CEO and founder of Revterra, says on the Houston Innovators Podcast. "People are familiar with filling their gas tank in a few minutes, so an experience similar to that is what people are looking for."

To charge an EV in ten minutes is about 350 kilowatts of power, and, as Jawdat explains, if several of these charges are happening at the same time, it puts a tremendous strain on the electric grid. Building the infrastructure needed to support this type of charging would be a huge project, but Jawdat says he thought of a more turnkey solution.

Revterra created a kinetic energy storage system that enables rapid EV charging. The technology pulls from the grid, but at a slower, more manageable pace. Revterra's battery acts as an intermediary to store that energy until the consumer is ready to charge.

"It's an energy accumulator and a high-power energy discharger," Jawdat says, explaining that compared to an electrical chemical battery, which could be used to store energy for EVs, kinetic energy can be used more frequently and for faster charging.

Jawdat, who is a trained physicist with a PhD from the University of Houston and worked as a researcher at Rice University, says some of his challenges were receiving early funding and identifying customers willing to deploy his technology.

Last year, Revterra raised $8.5 million in a series A funding round. Norway’s Equinor Ventures led the round, with participation from Houston-based SCF Ventures and At One Ventures. Previously, Revterra raised nearly $500,000 through a combination of angel investments and a National Science Foundation grant.

The funding has gone toward growing Revterra's team, including onboarding three new engineers with some jobs still open, Jawdat says. Additionally, Revterra is building out its new lab space and launching new pilot programs.

Ultimately, Revterra, an inaugural member of Greentown Houston, hopes to be a major player within the energy transition.

"We really want to be an enabling technology in the renewable energy transition," Jawdat says. "One part of that is facilitating the development of large-scale, high-power, fast-charging networks. But, beyond that, we see this technology as a potential solution in other areas related to the clean energy transition."

He shares more about what's next for Revterra on the podcast. Listen to the interview below — or wherever you stream your podcasts — and subscribe for weekly episodes.


This week's roundup of Houston innovators includes Craig Ceccanti of T-Minus Solutions, Ben Jawdat of Revterra, and Sam Sabbahi of Thermocuff. Photos courtesy

3 Houston innovators to know this week

who's who

Editor's note: In this week's roundup of Houston innovators to know, I'm introducing you to three local innovators across industries — from software development to medical devices — recently making headlines in Houston innovation.

Craig Ceccanti, founder of T-Minus Solutions

Craig Ceccanti joins the Houston Innovators Podcast to share what he's learned in his time as an entrepreneur in Houston — and what he's focused on now. Photo courtesy of Craig Ceccanti

When deciding what his passion project would be, Craig Ceccanti looked back at his career. He's always been interested in tech, and grew a small business — Pinot's Palette — to a national franchise. Combining his skills and expertise, he founded T-Minus Solutions to provide entrepreneurs with software consulting and support.

"I love technology and mentoring other entrepreneurs — those were two big factors," Ceccanti says on the Houston Innovators Podcast. "So, starting a consulting agency where we could help startups and mid sized-growth companies build custom software was kind of my perfect unicorn."

He shares more about the his career — from franchising to tech startups — as well as why he's bullish on Houston's business economy on the podcast. Click here to read more and listen to the episode.

Ben Jawdat, CEO and founder of Revterra

Revterra Corp. closed a $6 million series A round led by Equinor Ventures. Photo via LinkedIn

Revterra Corp. has raised $6 million in its series A funding round to propel development of its battery for electric vehicle charging stations. Norway’s Equinor Ventures led the round, with participation from Houston-based SCF Ventures. Previously, Revterra raised nearly $500,000 through a combination of angel investments and a National Science Foundation grant.

“There is an urgent need to reduce carbon emissions globally,” physicist Ben Jawdat, founder and CEO of Revterra, says in a news release. “Our goal at Revterra is to deploy scalable energy storage solutions that facilitate the shift to renewables and EVs while hardening our electric grid. Our systems enable these ambitions while utilizing materials that are recyclable and based on a secure supply chain.” Click here to read more.

Thermocuff has several patents and expects FDA approval at the end of the year. Image via LinkedIn.com

Necessity is the mother of invention — and Sam Sabbahi needed a better way to heat and cool common joint injuries. Sabbahi, a physical therapist by trade, wanted to optimize the traditional way of using ice or heat packs.

“In the field, we were always getting people coming in trying to get us to purchase different medical devices and we wondered, ‘who knows what we need better than we do?’” he says. “A patient asked me ‘what a cold pack does’ and I was thinking in my head that a cold pack just cools the skin to three millimeters depth.”

Sabbahi then developed and invented a portable convection-based heating and cooling system device that could be used for joint injury rehabilitation – the device, dubbed Thermocuff, works much in the way that an air fryer circulates the air to get an even temperature. Click here to read more.

Ad Placement 300x100
Ad Placement 300x600

CultureMap Emails are Awesome

Property Showcase

11 Houston companies named best places to work by U.S. News

Best in the U.S.

Nearly a dozen public and private Houston-based companies have been hailed among the best places to work in 2025 by U.S. News and World Report.

The annual "U.S. News Best Companies to Work For" report examines thousands of publicly-traded companies around the world to determine the best employers based on six metrics including work-life balance and flexibility; quality of pay and benefits; job and company stability; career opportunities and professional development; and more. The companies were not ranked, but included based on reader surveys and publicly available data about each workplace.

New for the 2025-2026 ratings,U.S. News expanded its methodology to include privately owned companies and companies with internship opportunities for recent graduates and new, current, and prospective students. Companies were also grouped into job-specific and industry-specific lists, and the publication also added a new list highlighting "employers that are particularly friendly to employees who are also caregivers in their personal lives."

U.S. News included seven publicly-traded companies and four privately owned companies in Houston on the lists.

Chevron

It may not come as a surprise that oil and gas corporation Chevron landed at the top of the list of top public employers in the Energy Capital of the World. The energy giant currently employs more than 45,000 people, earns $193.47 billion in annual revenue, and has a market cap of $238.74 billion. The company earned high ratings by U.S. News for its job stability, "belongingness," and quality of pay.

Chevron also appeared in U.S. News'industry-specific "Best in Energy and Resources" list, the "Best Companies in the South" list, and the "Best for Internships" list.

American Bureau of Shipping (ABS)

In the category of privately held companies headquartered in Houston, American Bureau of Shipping (ABS) landed on top as one of the best employers thanks to its employee work-life balance, job stability, and quality of pay. U.S. News estimates ABS has between 5,000 and 10,000 employees, and generated between $1 billion to $10 billion in revenue in 2024.

This engineering and construction company was founded in 1862, and describes itself as "a global leader in providing classification services for marine and offshore assets."

"Our mission is to serve the public interest as well as the needs of our members and clients by promoting the security of life and property and preserving the natural environment," the company website says.

In addition to earning a place among U.S. News' overall "Best Companies" list, ABS also appeared in the "Best in Engineering and Construction" list.

Other top companies to work for in Houston include:

  • Calpine – Best in Energy and Resources; Best Companies (overall)
  • ConocoPhillips – Best in Energy and Resources; Best Companies (overall); Best in Caregiving; Best Companies in the South
  • Hines – Best in Real Estate and Facilities Management; Best Companies (overall)
  • Insperity, Kingwood – Best in Healthcare and Research; Best Companies (overall); Best in Caregiving; Best Companies in the South
  • KBR – Best in Engineering and Construction; Best Companies (overall); Best Companies in the South
  • Men's Warehouse – Best in Consumer Products; Best Companies (overall)
  • Occidental – Best in Energy and Resources; Best Companies (overall); Best Companies in the South
  • PROS – Best in Information Technology; Best Companies (overall); Best Companies in the South
  • Skyward Specialty Insurance – Best in Finance and Insurance; Best Companies (overall); Best Companies in the South
"'Best' is a subjective term relative to career satisfaction, and many aspects factor into someone’s decision to apply for a job with any given company," U.S. News said. "But some universally desired factors can contribute to a good workplace, such as quality pay, good work-life balance, and opportunities for professional development and advancement.

Other top Texas employers

In all, 30 employers headquartered in the Lone Star State made it onto U.S. News' 2025-2026 "Best Places to Work For" lists. Houston and the Dallas-Fort Worth metro area tied for the most employers make the list, at 11 companies each. Diamondback Energy in Midland was the only company from West Texas to make it on the list for the second year in a row.

The best places to work for across Dallas-Fort Worth:

  • Aimbridge Hospitality, Plano
  • Ben E. Keith, Fort Worth
  • Coach America, Grand Prairie
  • Digital Realty, Dallas
  • Freeman, Dallas
  • Integrity Marketing Group, Dallas
  • Lincoln Property Company, Dallas
  • RGP, Dallas
  • Sammons Enterprises, Dallas
  • Texas Instruments, Dallas
  • Veritex Community Bank, Dallas

The top companies to work for in Austin:

  • Cirrus Logic
  • Dell Technologies, Round Rock
  • Silicon Labs
  • Yeti

The top companies to work for in San Antonio:

  • Frost Bank
  • H-E-B
  • Sachry Group
---

This article originally appeared on CultureMap.com.

Texas Space Commission doles out $5.8 million to Houston companies

On A Mission

Two Houston-area companies have landed more than $5.8 million in funding from the Texas Space Commission.

The commission granted up to $5.5 million to Houston-based Axiom Space and up to $347,196 to Conroe-based FluxWorks.

The two-year-old commission previously awarded $95.3 million to 14 projects. A little over $34 million remains in the commission-managed Space Exploration and Aeronautics Research Fund.

Axiom Space, a commercial spaceflight company, said the new funding will go toward the development of its orbital data center capabilities. By the end of this year, Axiom plans to launch two free-flying nodes in low-Earth orbit to support its orbital data center operations. More nodes are set to go online in the coming years.

“Axiom Space is actively evaluating how our [orbital data center] architecture can enhance critical U.S. capabilities, including the proposed Golden Dome missile defense architecture,” Jason Aspiotis, global director of in-space data and security at Axiom, said in a news release. “In this context, real-time, around-the-clock availability, secure orbital processing, and AI-driven autonomy are vital for ensuring mission success.”

Founded in 2021, FluxWorks provides magnetic gear technology that was developed at Texas A&M University.

In 2024, FluxWorks was one of two startups to receive the Technology in Space Prize, funded by Boeing and the Center for the Advancement of Science in Space (CASIS), which manages the International Space Station National Laboratory.

FluxWorks is testing the performance of magnetic gear in microgravity environments, such as the International Space Station.

“Gearboxes aim to reduce the mass of motors required in a variety of applications; however, the lubricant needed to make them work properly is not designed for use in extreme environments like space,” according to a 2024 news release about the Technology in Space Prize. “Magnetic gears do not require lubricant, making them an appealing alternative.”

The Texas Space Commission granted $25 million to Houston aerospace companies Starlab Space and Intuitive Machines earlier this year. Read more here.

3 Houston startups named most innovative in Texas by LexisNexis

report card

Three Houston companies claimed spots on LexisNexis's 10 Most Innovative Startups in Texas report, with two working in the geothermal energy space.

Sage Geosystems claimed the No. 3 spot on the list, and Fervo Energy followed closely behind at No. 5. Fintech unicorn HighRadius rounded out the list of Houston companies at No. 8.

LexisNexis Intellectual Property Solutions compiled the report. It was based on each company's Patent Asset Index, a proprietary metric from LexisNexis that identifies the strength and value of each company’s patent assets based on factors such as patent quality, geographic scope and size of the portfolio.

Houston tied with Austin, each with three companies represented on the list. Caris Life Sciences, a biotechnology company based in Dallas, claimed the top spot with a Patent Asset Index more than 5 times that of its next competitor, Apptronik, an Austin-based AI-powered humanoid robotics company.

“Texas has always been fertile ground for bold entrepreneurs, and these innovative startups carry that tradition forward with strong businesses based on outstanding patent assets,” Marco Richter, senior director of IP analytics and strategy for LexisNexis Intellectual Property Solutions, said in a release. “These companies have proven their innovation by creating the most valuable patent portfolios in a state that’s known for game-changing inventions and cutting-edge technologies.We are pleased to recognize Texas’ most innovative startups for turning their ideas into patented innovations and look forward to watching them scale, disrupt, and thrive on the foundation they’ve laid today.”

This year's list reflects a range in location and industry. Here's the full list of LexisNexis' 10 Most Innovative Startups in Texas, ranked by patent portfolios.

  1. Caris (Dallas)
  2. Apptronik (Austin)
  3. Sage Geosystems (Houston)
  4. HiddenLayer (Austin)
  5. Fervo Energy (Houston)
  6. Plus One Robotics (San Antonio)
  7. Diligent Robotics (Austin)
  8. HighRadius (Houston)
  9. LTK (Dallas)
  10. Eagle Eye Networks (Austin)

Sage Geosystems has partnered on major geothermal projects with the United States Department of Defense's Defense Innovation Unit, the U.S. Air Force and Meta Platforms. Sage's 3-megawatt commercial EarthStore geothermal energy storage facility in Christine, Texas, was expected to be completed by the end of last year.

Fervo Energy fully contracted its flagship 500 MW geothermal development, Cape Station, this spring. Cape Station is currently one of the world’s largest enhanced geothermal systems (EGS) developments, and the station will begin to deliver electricity to the grid in 2026. The company was recently named North American Company of the Year by research and consulting firm Cleantech Group and came in at No. 6 on Time magazine and Statista’s list of America’s Top GreenTech Companies of 2025. It's now considered a unicorn, meaning its valuation as a private company has surpassed $1 billion.

Meanwhile, HighRadius announced earlier this year that it plans to release a fully autonomous finance platform for the "office of the CFO" by 2027. The company reached unicorn status in 2020.

---

This article originally appeared on Energy Capital HTX.

View All Listings