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40+ climatetech startups join Greentown, including a dozen from Houston

green team

Twelve local startups have joined Greentown Houston, along with others from around the world. Photo courtesy Greentown Labs.

More than 40 climatetech startups joined the Greentown Labs Houston community in the second half of 2025. Twelve hail from the Bayou City.

The companies are among a group of nearly 70 that joined the climatetech incubator, which is co-located in Houston and Boston, in Q3 and Q4.

The new companies that have joined the Houston incubator specialize in a variety of clean energy applications, from green hydrogen-producing water-splitting cycles to drones that service wind turbines.

The local startups that joined Greentown Houston include:

  • Houston-based Wise Energie, which delivers turnkey microgrids that blend vertical-axis wind, solar PV, and battery storage into a single, silent system.
  • The Woodlands-based Resollant, which is developing compact, zero-emissions hydrogen and carbon reactors to provide low-cost, scalable clean hydrogen and high-purity carbon for the energy and manufacturing sectors.
  • Houston-based ClarityCastle, which designs and manufactures modular, soundproof work pods that replace traditional drywall construction with reusable, low-waste alternatives made from recycled materials.
  • Houston-based WattSto Energy, which manufactures vanadium redox flow batteries to deliver long-duration storage for both grid-scale projects and off-grid microgrids.
  • Houston-based AMPeers, which delivers advanced, high-temperature superconductors in the U.S. at a fraction of traditional costs.
  • Houston-based Biosimo, which is developing bio-based platform chemicals, pioneering sustainable chemistry for a healthier planet and economy.
  • Houston-based Ententia, which offers purpose-built, generative AI for industry.
  • Houston-based GeoKiln Energy Innovation, which is developing a new way to produce clean hydrogen by accelerating natural geologic reactions in iron-rich rock formations using precision electrical heating.
  • Houston-based Timbergrove, which builds AI and IoT solutions that connect and optimize assets—boosting visibility, safety, and efficiency.
  • Houston-based dataVediK, which combines energy-domain expertise with advanced machine learning and intelligent automation to empower organizations to achieve operational excellence and accelerate their sustainability goals.
  • Houston-based Resonant Thermal Systems, which uses a resonant energy-transfer (RET) system to extract critical minerals from industrial and natural brines without using membranes or grid electricity.
  • Houston-based Torres Orbital Mining (TOM),which develops autonomous excavation systems for extreme environments on Earth and the moon, enabling safe, data-driven resource recovery and laying the groundwork for sustainable off-world industry.

Other startups from around the world joined the Houston incubator in the same time period, including:

More than 100 startups joined Greentown this year, according to an end-of-year reflection shared by Greentown CEO Georgina Campbell Flatter.

Flatter joined Greentown in the top leadership role in February 2025. She succeeded former CEO and president Kevin Knobloch, who stepped down in July 2024.

"I moved back to the United States in March 2025 after six years overseas—2,000 miles, three children, and one very patient husband later. Over these months, I’ve had the chance to hear from the entrepreneurs, industry leaders, investors, and partners who make this community thrive. What I’ve experienced has left me brimming with urgent optimism for the future we’re building together," she said in the release.

According to Flatter, Greentown alumni raised more than $2 billion this year and created more than 3,000 jobs.

"Greentown startups and ecosystem leaders—from Boston, Houston, and beyond—are showing that we can move further and faster together. That we don’t have to choose between more energy or lower emissions, or between increasing sustainability and boosting profit. I call this the power of 'and,'" Flatter added. "We’re working for energy and climate, innovation and scale, legacy industry and startups, prosperity for people and planet. The 'and' is where possibility expands."

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Houston Innovation Awards nominations are open through August 31. Photo courtesy of InnovationMap

Nominations close Aug. 31 for Houston Innovation Awards — submit today

Awards Season

Calling all Houston energy innovators: The Houston Innovation Awards return this fall to celebrate the best and brightest in the Houston innovation ecosystem, and that includes those leading the energy transition.

Presented by InnovationMap, the fifth annual Houston Innovation Awards will take place November 13 at Greentown Labs.

The awards program will honor the top startups and innovators in Houston across 10 categories, and we're asking you to nominate the most deserving Houston innovators and innovative companies, including those in the energy transition sector.

This year's categories are:

  • Minority-founded Business, honoring an innovative startup founded or co-founded by BIPOC or LGBTQ+ representation.
  • Female-founded Business, honoring an innovative startup founded or co-founded by a woman.
  • Energy Transition Business, honoring an innovative startup providing a solution within renewables, climatetech, clean energy, alternative materials, circular economy, and beyond.
  • Health Tech Business, honoring an innovative startup within the health and medical technology sectors.
  • Deep Tech Business, honoring an innovative startup providing technology solutions based on substantial scientific or engineering challenges, including those in the AI, robotics, and space sectors.
  • Startup of the Year (People's Choice), honoring a startup celebrating a recent milestone or success. The winner will be selected by the community via an interactive voting experience.
  • Scaleup of the Year, honoring an innovative later-stage startup that's recently reached a significant milestone in company growth.
  • Incubator/Accelerator of the Year, honoring a local incubator or accelerator that is championing and fueling the growth of Houston startups.
  • Mentor of the Year, presented by Houston Community College, honoring an individual who dedicates their time and expertise to guide and support budding entrepreneurs.
  • Trailblazer, honoring an innovator who's made a lasting impact on the Houston innovation community.

Nominations may be made on behalf of yourself, your organization, and other leaders and institutions in the local innovation scene. The nomination period closes on August 31, so don't delay — nominate today at this link, or fill out the embedded form below.

A panel of esteemed judges will review the nominations, and determine the finalists and winners. Finalists will be unveiled on InnovationMap.com in early October, and the 2025 Houston Innovation Awards winners will be announced live at our event on November 13.

Tickets will go on sale this fall. Stay tuned for that announcement.

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Interested in Innovation Awards sponsorship opportunities? Please contact sales@innovationmap.com.

Houston-based Solidec has closed an oversubscribed pre-seed round led by New Climate Ventures. Photo courtesy Greentown Labs.

Houston clean-chemicals startup Solidec raises $2M to scale tech

fresh funding

Solidec, a Houston startup that specializes in manufacturing “clean” chemicals, has raised more than $2 million in pre-seed funding.

Houston-based New Climate Ventures led the oversubscribed pre-seed round, with participation from Plug and Play Ventures, Ecosphere Ventures, the Collaborative Fund, Safar Partners, Echo River Capital and Semilla Climate Capital, among other investors.

Solidec’s approach to chemical manufacturing replaces centralized infrastructure with modular on-site production using only air, water and electricity. Solidec’s platform is powered by modular reactors capable of producing widely used chemicals such as hydrogen peroxide, formic acid, acetic acid and ethylene.

“We’ve known the Solidec team for almost two years and have developed a high degree of conviction in the team, their technology, and their go-to-market strategy,” Eric Rubenstein, managing partner at New Climate Ventures, said in a news release. “We’re particularly excited about Solidec’s ability to produce many different widely used chemicals. It gives them critical flexibility to expand and serve a broad customer base.”

Solidec is initially focusing on hydrogen peroxide.

“Traditionally, hydrogen peroxide is produced in centralized, energy-intensive facilities using carbon-intensive inputs, then transported long distances, resulting in a significant carbon footprint,” Ryan DuChanois, co-founder and CEO of Solidec, said in the release. “Solidec’s modular reactor produces clean chemicals like hydrogen peroxide on-site, in fewer steps, and with less energy, slashing emissions, supply-chain risk, and cost.”

Solidec said its technology “is poised to disrupt the multibillion-dollar commodity and chemical industries.” The company has already signed up several customers.

The startup, a Rice University spinout, is a graduate of the Chevron Catalyst Program and a member of Greentown Labs Houston. It was cofounded by DuChanois, Haotian Wang and Yang Xia.

NanoTech is targeting new overseas markets for its energy efficiency products. Photo via Getty Images

Promising Houston startup expands energy efficiency product to Middle East, Singapore

big move

NanoTech Materials has announced a big expansion for its business.

The Houston company, which created a roof coating using nanotechnology that optimizes energy efficiency, has partnered with Terminal Subsea Solutions Marine Service SP to bring its products to the Gulf Cooperation Council and Singapore. TSSM will become a partner of Houston’s NanoTech Materials products, which will include the Cool Roof Coat, Vehicular Coat, and Insulative Coat for the GCC countries and Singapore.

NanoTech Materials technology that ranges from roof coatings on mid- to low-rise buildings to shipping container insulation to coating trucks and transportation vehicles will be utilized by TSSM in the partnership. NanoTech’s efforts are focused on heat mitigation that can reduce energy costs, enhance worker safety, and minimize business risks in the process.

“Businesses and communities within the GCC and Singapore feel the impact of extreme temperatures and longer Summers more acutely than any other region in the world,” Mike Francis, CEO of NanoTech Materials, says in a news release. “We have an opportunity to make a real impact here through reduced energy load, cooler and safer working conditions, and a reduced carbon emissions output from the hottest, driest place on earth. We are incredibly excited to be partnering with our colleagues at TSSM to bring this powerful technology to the region.”

One of the areas that will benefit from this collaboration is the Middle East. The GCC region is characterized by a desert climate, which has average annual temperature reaching 107.6°F and summer peaks climbing as high as 130°F. The effects of these extreme conditions can be dangerous for workers especially with strict labor laws mandating midday work bans under black flag conditions, which can result in productivity losses as well.

NanoTech’s proprietary technology, the Insulative Ceramic Particle (ICP), will be used to address challenges in energy efficiency and heat control in the logistics and built environment sector. The platform can be integrated into many applications, and the impact can range from reducing greenhouse gas emissions to protecting communities that are wildfire-prone. The core of the technology has a lower conductivity than aerogels. It also has a “near-perfect emissivity score” according to the company. The NanoTech ICP is integrated with base matrix carriers; building materials, coatings, and substrates, which gives the materials heat conservation, rejection, or containment properties.

By combining the ICP into an acrylic roof coating, NanoTech has created the Cool Roof Coat, which reflects sunlight and increases the material's heat resistance. This can lower indoor temperatures by 25 to 45°F in single-story buildings and reduce the carbon emissions of mid to low-rise buildings. This can potentially equal energy savings from 20 percent up to 50 percent, which would surpass the average 15 percent savings of traditional reflective only coatings.

“This technology will have a huge impact on supporting the region's aggressive climate initiatives, such as Saudi Arabia’s Green Initiative, aiming to reduce carbon emissions by 278 million tons annually by 2030,” Jameel Ahmed, managing director at TSSM, says in the release. “The regional efforts to enhance climate action and economic opportunities through substantial investments in green technologies and projects are evident, and we are proud to be offering a product that can make a difference.”

NanoTech says its coating maintains its effectiveness over time and doesn’t suffer UV degradation issues which are helpful, especially in extreme weather conditions workers and businesses face in regions like the Middle East.

IBM and Boxes recently partnered to integrate the IBM watsonx Assistant into Boxes devices, providing a way for consumer packaged brands to find out more than ever about what its customers like and want. Photo courtesy of Boxes

Houston startup taps new corporate partner for AI-backed sustainability consumer tech

out of the boxes

With the help of a new conversational artificial intelligence platform, a Houston startup is ready to let brands get up close and personal with consumers while minimizing waste.

IBM and Boxes recently partnered to integrate the IBM watsonx Assistant into Boxes devices, providing a way for consumer packaged brands to find out more than ever about what its customers like and want.

The Boxes device, about the size of a 40-inch television screen, dispenses products to consumers in a modern and sustainable spin on the old-fashioned large vending machine.

CEO Fernando Machin Gojdycz learned that business from his entrepreneur father, Carlos Daniel Machin, while growing up in Uruguay.

“That’s where my passion comes from — him,” Gojdycz says of his father. In 2016, Gojdycz founded Boxes in Uruguay with some engineer friends

Funded by a $2,000 grant from the University of Uruguay, the company's mission was “to democratize and economize affordable and sustainable shopping,” in part by eliminating wasteful single-use plastic packaging.

“I worked for one year from my bedroom,” he tells InnovationMap.

Fernando Machin Gojdycz founded Boxes in Uruguay before relocating the company to Greentown Houston. Photo courtesy of Boxes

The device, attached to a wall, offers free samples, or purchased products, in areas of high foot traffic, with a touch-screen interface. Powered by watsonx Assistant, the device asks survey questions of the customer, who can answer or not, on their mobile devices, via a QR code.

In return for completing a survey, customers can get a digital coupon, potentially generating future sales. The software and AI tech tracks sales and consumer preferences, giving valuable real-time market insight.

“This is very powerful,” he says.

Boxes partnered in Uruguay with major consumer brands like Kimberly-Clark, SC Johnson and Unilever, and during COVID, pivoted and offered PPE products. Then, with plans of an expansion into the United States, Boxes in 2021 landed its first U.S. backer, with $120,000 in funding from startup accelerator Techstars.

This led to a partnership with the Minnesota Twins, where Boxes devices at Target Field dispensed brand merchandise like keychains and bottles of field dirt.

Gojdycz says while a company in the Northeast is developing a product similar in size, Boxes is not “targeting traditional spaces.” Its software and integration with AI allows Boxes to seamlessly change the device screen and interface, remotely, as well.

Boxes aims to provide the devices in smaller spaces, like restrooms, where they have a device at the company's headquarters at climate tech incubator Greentown Labs. Boxes also recently added a device at Hewlett Packard Enterprise headquarters in Spring, as part of HPE’s diversity startup program.

Boxes hopes to launch another sustainable innovation later this year, in universities and supermarkets. The company is also developing a device that would offer refillable detergent and personal cleaning products like shampoo and conditioner with a reusable container.

Since plastic packaging accounts for 40 percent of retail price, consumers would pay far less, making a huge difference, particularly for lower-income families, he says.

“We are working to make things happen, because we have tried to pitch this idea,” he says.

Some supermarket retailers worry they may lose money or market share, and that shoppers may forget to bring the refill bottles with them to the store, for example.

“It’s about..the U.S. customer,” he says, “….but we think that sooner or later, it will come.”

Boxes has gotten funding from the accelerator startup branch of Houston-based software company Softeq, as well as Mission Driven Finance, Google for Startups Latino Founders Fund, and Right Side Capital, among others.

“Our primary challenges are scaling effectively with a small, yet compact team and maintaining control over our financial runway,” Gojdycz says.

The company has seven employees, including two on its management team.

Gojdycz says they are actively hiring, particularly in software and hardware engineering, but also in business development.

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This article originally ran on InnovationMap.

Do you think you know the best of Houston's innovation community? Now's your chance to shine the spotlight on a deserving innovator. Photo via Getty Images

Annual awards program calls for sustainable startups, innovative corporates in Houston

nominations open

Calling all Houston innovators in the energy transition space — an annual awards program wants to recognize you.

For the third year, InnovationMap, EnergyCapital's sister site, is hosting an awards program that will recognize the best of the rest in Houston's innovation ecosystem. The awards program will be on Wednesday, November 8, at Silver Street Studios, with tickets going on sale later this month.

The program features a dozen awards this year — some of which should be interesting to the Houston energy transition community:

  • Hardtech Business, honoring an innovative company developing and commercializing a physical technology
  • Digital Solutions Business, honoring an innovative company developing and programming a digital solution to a problem in an industry
  • Sustainability Business, honoring an innovative company providing a solution within renewables, climatetech, clean energy, alternative materials, circular economy, and beyond
  • Corporate of the Year, honoring a corporation that supports startups and/or the Houston innovation community

The nomination period — which includes submitting nominations on behalf of yourself or others — will close September 19. Nominees will be sent an application, which will be due October 4. A panel of judges will review the applications and finalists will be announced and notified ahead of the event.

If you are interested in sponsorship opportunities, please reach out to misti@gowmedia.com.

Click here to submit a nomination or see form below.

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Texas' oil and gas foundation could boost its geothermal future, UH says

future of geothermal

Equipped with the proper policies and investments, Texas could capitalize on its oil and gas infrastructure and expertise to lead the U.S. in development of advanced geothermal power, a new University of Houston white paper says.

Drilling, reservoir development and subsurface engineering are among the Texas oil and gas industry’s capabilities that could translate to geothermal energy, according to a news release. Furthermore, oil and gas skills, data, technology and supply chains could help make geothermal power more cost-effective.

Up to 80 percent of the investment required for a geothermal project involves capacity and skills that are common in the oil and gas industry, the white paper points out.

Building on its existing oil-and-gas foundation, Texas could help accelerate production of geothermal energy, lower geothermal energy costs and create more jobs in the energy workforce, according to the news release.

The paper also highlights geothermal progress made by Houston-based companies Fervo Energy, Quaise Energy and Sage Geosystems, as well as Canada-based Eavor Technologies Inc.

UH’s Division of Energy published the white paper, Advanced Geothermal: Opportunities and Challenges, in partnership with the C.T. Bauer College of Business’ Gutierrez Energy Management Institute.

“Energy demand, especially electricity demand, is continuing to grow, and we need to develop new low-carbon energy sources to meet those needs,” Greg Bean, executive director of the institute and author of the white paper, said of geothermal’s potential.

HETI leader reflects on four years focused on the energy transition

The View From HETI

It’s hard to believe only four years have passed since I joined the Greater Houston Partnership to lead the Houston Energy Transition Initiative. We talk about COVID years feeling simultaneously like just yesterday and a lifetime ago, and my time at HETI feels quite similar. The energy and climate landscape has evolved dramatically over the last few years, but one constant has endured…Houston remains at the heart of the energy industry.

When I joined HETI at the start of 2022, I could not have imagined the impact we would have over the next four years. Our vision, laid out in 2020 by then Partnership Chair Bobby Tudor, was bold – leverage Houston’s energy leadership to accelerate global solutions for an energy abundant, low-carbon future. Our mission was clear – ensure the long-term economic competitiveness of the Houston region in a changing energy landscape. Our strategy, developed with strong support from McKinsey, was sound – build a coalition of industry, academic and community partners to position Houston as a leading hub for energy and climate innovation, commercialization and economic growth.

And Houston’s energy leaders, across business, academia and community, came together to deliver that strategy. Bobby Tudor’s timely vision created an anchor for Houston’s energy community that allowed us to broaden the energy and climate discussion to one focused on meeting growing energy demand and reducing emissions. That vision was a catalyst for changing the perception of Houston from oil & gas capital to an “all of the above” energy capital with a thriving energy and climate tech innovation ecosystem. Houston is where you can work collaboratively to build new energy value chains and ensure an affordable, secure, and lower emissions energy mix for our region, our country, and the world.

In this fast-moving energy environment, it can be easy to focus on what to do next without taking time to reflect on the work and celebrate the wins. We took the opportunity at the end of 2025 to reflect on five years of impact. As we developed that report, I thought about how fortunate I have been to lead this work for the last four years. HETI’s impact has been incredibly meaningful for our region, our members, and the new companies and founders building the next generation of energy technology and talent. As my time as executive director comes to an end, HETI’s work continues. The need remains clear: more energy, less emissions, and continued collaboration that brings together innovation and infrastructure, policies and markets, and hard tech together with human ingenuity.

As I prepare to hand the reigns to HETI’s new SVP and executive cirector, Sophia Cunningham, at the end of March, I have been reflecting on the impact this role has had on me. Four years ago, I could never have imagined the opportunities, experiences and relationships this role has enabled. I am truly grateful for the support and engagement of Houston’s business and community leaders, the visionary leadership of Bobby Tudor, Scott Nyquist, HETI Members, and the Greater Houston Partnership in creating this initiative at exactly the right moment in time. I am incredibly proud of the HETI and partnership team members who have delivered with purpose and passion, and I greatly appreciate Houston’s energy and climate leaders and champions who have supported my agenda, challenged my thinking, broadened my perspectives, and worked with HETI to demonstrate the power of partnership in developing, innovating and advancing the ideas and technologies needed to meet this challenge for our region and the world.

As excited as I am to see where this next chapter takes me, I am even more excited to see where the work of HETI goes from here. I am still optimistic that the challenge of providing the world with affordable, reliable, and resilient energy while simultaneously reducing emissions is one Houston is uniquely positioned to meet.

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This article originally appeared on the Greater Houston Partnership's Houston Energy Transition Initiative blog. HETI exists to support Houston's future as an energy leader. For more information about the Houston Energy Transition Initiative, EnergyCapitalHTX's presenting sponsor, visit htxenergytransition.org.

Texas could topple Virginia as biggest data-center market by 2030, JLL report says

data analysis

Everything’s bigger in Texas, they say—and that phrase now applies to the state’s growing data-center presence.

A new report from commercial real estate services provider JLL says Texas could overtake Northern Virginia as the world’s largest data-center market by 2030. Northern Virginia is a longtime holder of that title.

What’s driving Texas’ increasingly larger role in the data-center market? The key factor is artificial intelligence.

Companies like Google and Microsoft need more energy-hungry data centers to power AI innovations. In a 2023 article, Forbes explained that AI models consume a lot of energy because of the massive amount of data used to train them, as well as the complexity of those models and the rising volume of tasks assigned to AI.

“The data-center sector has officially entered hyperdrive,” Andy Cvengros, executive managing director at JLL and co-leader of its U.S. data-center business, said in the report. “Record-low vacancy sustained over two consecutive years provides compelling evidence against bubble concerns, especially when nearly all our massive construction pipeline is already pre-committed by investment-grade tenants.”

Dallas-Fort Worth has long dominated the Texas data-center market. But in recent years, West Texas has emerged as a popular territory for building data-center campuses, thanks in large part to an abundance of land and energy. Nearly two-thirds of data-center construction underway now is happening in “frontier markets” like West Texas, Ohio, Tennessee and Wisconsin, the JLL report says.

Northern Virginia, the current data-center champ in the U.S., boasted a data-center market with 6,315 megawatts of capacity at the end of 2025, the report says. That compares with 2,423 megawatts in Dallas-Fort Worth, 1,700 megawatts in the Austin-San Antonio corridor, 200 megawatts in West Texas, and 164 megawatts in Houston.

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