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New global report names top cleantech startups to keep an eye on

seeing green

Fervo Energy — and a few other Greentown Labs companies — made a global list of clean tech companies. Photo via fervoenergy.com

Nine Greentown Labs members were recognized on a global list honoring cleantech companies.

Houston-based Fervo Energy was named to Cleantech Group’s Global Cleantech 100 report. Cleantech Group is a research-driven company that aids the public sector, private sector, investors, and also identifies, assesses, and engages with the innovative solutions around climate challenges.

Fervo, a geothermal energy company that specializes in a renewable energy technology that uses hot water to produce electricity, debuted in 2022 on the list, and was honored in the “Energy & Power” category for the second straight year.

The other Greentown Labs, which is dual located in Houston and Somerville, Massachusetts, companies recognized on the list include:

  • Amogy, a New York-based novel carbon-free energy system using ammonia as a renewable fuel
  • Carbon Upcycling Technologies, a Canadian waste and carbon utilization company
  • Dandelion Energy, New York-based company offering ground source heat pumps for most homes
  • Energy Dome, a Milan-based company addressing the problem of long-duration energy storage
  • e-Zinc, a Canadian company with a breakthrough electrochemical technology for energy storage
  • Nth Cycle, a Massachusetts company with sustainable metal refining
  • Raptor Maps, a Massachusetts company with a software platform for solar assets' performance data management
  • Sublime Systems, a Massachusetts companydeveloping a breakthrough process for low-carbon cement
  • WeaveGrid, a California company working with utilities, automakers, EVSEs, and EV owners to enable and accelerate the electrification of transportation

The number of nominations from the public, a panel, i3, awards and Cleantech Group totaled 25,435 from over 65 countries, which is a 61% increase from the 2023 nomination process. Winners were chosen from a short list of 330 companies by a panel of over 80 industry experts.

While not on the list, Beaumont-based Fortress Energy was mentioned for its electrolyzer supply agreement with Cleantech Group 100 winner Electric Hydrogen.

The Cleantech Group 100 was started 15 years ago.

“In 15 more years, we will be at 2039—by which time, a mere decade out from the ‘net-zero’ target of 2050,” Cleantech Group CEO Richard Youngman says in the report. “I would expect the composition of our annual list to have markedly changed again, and the leading upcoming private companies of that time to reflect such.”

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Local energy innovators recognized at annual Houston Innovation Awards

the big winners

This week, the Houston innovation ecosystem celebrated big wins from the year, and members of the energy transition community were recognized alongside other innovators.

The Houston Innovation Awards honored over 40 finalists across categories, naming the 12 winners and honoring the two Trailblazer Legacy Awards at the event. The event, hosted at TMC Helix Park on November 14 named and celebrated the winners, which included four energy transition innovators.

Here's what energy leaders secured wins during the evening.

Corrolytics is a technology startup founded to solve microbiologically influenced corrosion problems for industrial assets. Co-founder and CEO Anwar Sadek says he's collected over $1 million in dilutive and non-dilutive funding from grants and other opportunities thanks to help from mentors. The company won both the Minority-Founded Business category and the People's Choice: Startup of the Year category.

"As a founder, I am always eager to assist and support fellow entrepreneurs, especially those navigating the unique challenges that come with being a BIPOC founder," he says. "With the guidance of mentors, I learned to master the complexities of the application process for grants and other funding opportunities. In turn, I actively share my experiences with other founders, helping them navigate similar paths."

Founded by CEO Cindy Taff, SageGeosystems is an energy company focused on developing and deploying advanced geothermal technologies to provide reliable power and sustainable energy storage solutions regardless of geography. The company secured the win in the Energy Transition Business category, alongside finalists Amperon, ARIX Technologies, Elementium Materials, InnoVent Renewables, and Tierra Climate.

"Sage Geosystems sets itself apart from competitors with its Geopressured Geothermal Systems, which can be deployed almost anywhere, unlike traditional geothermal technologies that require specific geographic conditions," Taff says. "This flexibility enables Sage to provide a reliable and virtually limitless power supply, making it ideal for energy-intensive applications like data centers."

A finalist in both the Investor of the Year and Ecosystem Builder categories, Juliana Garaizar is the founding partner of Energy Tech Nexus, invests with groups — such as Portfolia, Houston Angel Network, Business Angel Minority Association, and more — locally and beyond.

"I'm a hands on investor," she says. "I offer mentorship and industry and other investor connections. I take advisory roles and board observer seats."

This year, the Houston innovation community suffered the loss of two business leaders who left a significant impact on the ecosystem. Both individuals' careers were recognized with Trailblazer Legacy Awards.

One of the recipients was Scott Gale, executive director of Halliburton Labs, who received the award posthumously. He died on September 24. The award was decided on by the 2024 judges and InnovationMap. Gale was honored alongside Paul Frison, founder of the Houston Technology Center.

“I am immensely proud to honor these two remarkable individuals with the Trailblazer Award this year. It is fitting, as they represent two generations of building Houston’s ecosystem," 2023 Trailblazer Award recipient Brad Burke, managing director of the Rice Alliance and the associate vice president for industry and new ventures within Rice University's Office of Innovation, tells InnovationMap.

"Paul Frison was a pioneering leader who helped establish the Houston Technology Center and fostered the city’s tech ecosystem during the initial technology boom around the year 2000. Scott Gale, through his work at Halliburton Labs over the past five years, has been instrumental in launching Houston’s energy transition ecosystem," he continues. "Both have played pivotal roles in championing technology innovators.”

In honor of his son, Andrew Gale accepted the award with his daughter-in-law, Nicole, during the event.

Trending news: $450M fund closes, virtual power plant planned for Texas, and more in Houston energy

what's trending

Editor's note: From NRG's new virtual power plant plans to Pelican Energy Partners' $450 million fund announcement, these are the top headlines that resonated with EnergyCapital readers on social media and daily newsletter this week.

NRG Energy partners to launch Texas' largest AI-powered virtual power plant

NRG and Renew Home expect the virtual power plant program to arrive for Texas customers in spring of 2025. Photo via Getty Images

NRG Energy is partnering with a virtual power plant company to distribute hundreds of thousands of VPP-enabled smart thermostats by 2035 in an overall effort to improve the Texas grid's resiliency and help households manage and lower their energy costs.

Renew Home will create a nearly 1 gigawatt AI-powered VPP, which will be enabled by Google Cloud technology and be the largest AI-enabled VPP in Texas. NRG and Renew Home expect the VPP program to arrive for Texas customers in spring of 2025. Continue reading.

Houston PE firm unveils oversubscribed $450M fund to advance nuclear power innovation

Pelican Energy Partners has raised more than it intended with its new nuclear-focused fund. Photo via Getty Images

Houston-based private equity firm Pelican Energy Partners has raised a $450 million fund to invest in nuclear energy services and equipment companies.

Pelican had aimed to raise $300 million for Pelican Energy Partners Base Zero LP and had imposed an initial “hard cap” of $400 million. Investors include endowments, foundations, family offices, and pension plans.

As of the fund’s closing date, the fund had wrapped up six investments, with several more deals expected to close by the end of this year. Continue reading.

Houston-area solar farm to light up Texas with clean power for 15,000 homes

Recurrent Energy's Liberty Solar project near Houston is now operational, adding 134 megawatts of clean energy capacity to power 15,000 homes annually in the MISO market. Photo via recurrentenergy.com

A clean energy developer and operator of solar and energy storage assets has announced the completion and commercial operation of a Houston-area farm that will power 15,000 homes a year.

Recurrent Energy's Liberty Solar project outside of Houston has powered on and will expand solar energy capacity in the Midcontinent Independent System Operator market. Recurrent Energy is an Austin-based a subsidiary of Canadian Solar.

“Projects like Liberty Solar are instrumental to meeting the soaring demand for electricity in Texas,” Executive Director of Texas Solar Power Association Mark Stover says in a news release. "We commend Recurrent Energy for pushing through the development process and working with corporate buyers to deliver new, predictable, clean power to the MISO region of Texas.” Continue reading.

Unlocking climate tech’s potential in Houston: What health innovation's rise can teach us

If we can channel the same sense of urgency and public commitment toward climate change as we did for health crises in the past, climate tech could overcome its current obstacles. Photo via Getty Images

Over the past several decades, climate tech has faced numerous challenges, ranging from inconsistent public support to a lack of funding from cautious investors. While grassroots organizations and climate innovators have made notable efforts to address urgent environmental issues, we have yet to see large-scale, lasting impact.

A common tendency is to compare climate tech to the rapid advancements made in digital and software technology, but perhaps a more appropriate parallel is the health tech sector, which encountered many of the same struggles in its early days.

Observing the rise of health tech and the economic and political support it received, we can uncover strategies that could stabilize and propel climate tech forward. Continue reading.

Podcast: How this Houston energy tech startup transforms innovation into scalable success

Through Dsider’s techno-economic analysis platform, Sujatha Kumar is helping startups bridge the critical gap between vision and execution, ensuring they can navigate complex markets with confidence. Photo via LinkedIn

What if the future of clean energy wasn’t just about invention, but execution? For Sujatha Kumar, CEO of Dsider, success in clean tech hinges on more than groundbreaking technology—it’s about empowering founders with the tools to make their innovations viable, scalable, and economically sound.

Through Dsider’s techno-economic analysis (TEA) platform, Kumar is helping startups bridge the critical gap between vision and execution, ensuring they can navigate complex markets with confidence.

In a recent episode of the Energy Tech Startups Podcast, Kumar shared her insights on the growing importance of TEA in the hard tech space. While clean energy innovation promises transformative solutions, the challenge lies in proving both technical feasibility and economic sustainability. Kumar argues that many early-stage founders, especially in fields like carbon capture, microgrids, and renewable energy, lack the necessary financial tools to assess market fit and long-term profitability—a gap Dsider aims to fill. Continue reading.

Pipeline robotics: How this Houston startup is revolutionizing corrosion monitoring

listen now

After working for years in the downstream energy industry where safety and efficiency were top priorities, Dianna Liu thought there was a way technology could make a huge difference.

Despite loving her company and her job, she took a leap of faith to start a robotics company to create technology to more safely and efficiently monitor corrosion in pipelines. ARIX Technologies has developed software and hardware solutions for its customers with pipelines in downstream and beyond.

"Overall, this industry is an industry that really harps on doing things safely, doing things well, and having all the data to make really informed decisions," Liu says on the Houston Innovators Podcast. "Because these are huge companies with huge problems, it takes a lot of time to set up the right systems, adopt new things, and make changes."

But it's an industry Liu knows well, so she founded ARIX in 2017 and created a team of engineers to create the first iteration of the ARIX robot, which was at first made of wood, she says. Now, years later, the much-evolved robot moves up and down the exterior of the pipe, using its technology to scan the interior to evaluate corrosion. The technology works with ARIX's software to provide key data analysis.

With customers across the country and the world, ARIX has a strong foothold in downstream, but has garnered interest from other verticals as well — even working with NASA at one point, Liu says.

"Staying in downstream would be nice and safe for us, but we've been very lucky and have had customers in midstream, upstream, and even outside oil and gas and chemicals," she says. "We've gotten inquiries ranging from cosmetics plants to water or wastewater — essentially anything that's round or a pipe that can corrode, we can help with."

Liu, who goes into detail on the show about how critical establishing a positive company culture has been for ARIX, shares a bit about what it's been like growing her company in Houston.

"Houston being the Energy Capital of the World opens a lot of doors to both customers, investors, and employees in a way that's unparalleled. It is a great place to build a company because of that — you have all this expertise in this city and the surrounding areas that's hard to find elsewhere," she says. "Being such a hub — not only for energy, but in terms transportation — means it's easy for us to get to our customers from around the world."

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This article originally ran on InnovationMap.

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