12 Houston climatetech startups join Greentown Labs' growing incubator

Startup Talk

More than 40 startups joined Greentown Labs in the second half of 2025. Photo via GreentownLabs.com

More than 40 climatetech startups joined the Greentown Labs Houston community in the second half of 2025, 12 of which hail from the Bayou City.

The companies are among a group of nearly 70 total 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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This article originally appeared on EnergyCaptialHTX.com.

Greentown Labs has announced its newest climatetech incubator cohort. Photo via GreentownLabs.com

Greentown Labs adds 5 new Houston startups to climatetech incubator

Going Green

Greentown Labs announced that it added five startups to its Houston community in Q1 of 2025.

The companies are among a group of 19 that joined the climatetech incubator, which is co-located in Houston and Boston, in the same time period. The companies that joined the Houston-based lab specialize in a number of "green" applications, from converting plastic waste into sustainable materials to developing energy-storage solutions.

The new Houston members include:

  • Concept Loop, a project of Pakistan-based Innova8e Inc., aims to repurpose post-industrial and post-consumer plastic waste into sustainable building materials.
  • GeoFuels, a Sugar Land-based company that produces hydrogen by using baseload geothermal power and methane pyrolysis.
  • PLASENE, a Houston-based company with an innovative platform that converts plastic waste into liquid fuel and low-carbon hydrogen through its proprietary catalysts and modular, scalable, pre-engineered units platform. The company was named to Greentown's ACCEL Year 3 cohort earlier this year.
  • RepAir Carbon, an Israeli company with a fully electric, zero-heat carbon-removal technology that consumes minimal energy, operates without liquids or solvents, and produces no hazardous materials or waste.
  • RotorVault from Pasadena, California, is commercializing energy-storage and load-following solutions that are containerized, modular, and field-deployable systems built on flywheel technology.

Fourteen other companies will join Greentown Boston's incubator. See the full list here.

PLASENE and five other new members—Thola, Respire Energy, Andros Innovations, FAST Metals and Tato Labs—join Greentown Labs through its most recent Advancing Climatetech and Clean Energy Leaders Program, or ACCEL, cohort. ACCEL, which works to advance BIPOC-led startups in the climatetech space, announced its third cohort last month.

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A version of this story originally appeared on our sister site, EnergyCapitalHTX.

A report by web-hosting company Hostinger showed that Texas is making one of the biggest impacts on the digital economy. Photo via Getty Images

Texas lands top 10 spot in new future of tech study

report

Texas is among the top 10 states making the biggest investments in digital innovation, according to a new study.

The study, conducted by web-hosting company Hostinger, puts Texas in eighth place among the states when it comes to these key metrics:

  • Financial impact of the digital economy
  • Amount of venture capital and grants received by digital startups
  • Number of government-run tech hubs
  • Presence of top-rated business incubators

“To many, the Texas story is one of oil magnates and real estate tycoons. But in recent decades, the state has emerged as an innovation and high-tech hub,” according to a report from the Federal Reserve Bank of Dallas.

On a scale of 1 to 100, Texas received a score of 79. California nabbed the top spot with a score of 100. Appearing behind California and ahead of Texas in the ranking are:

  • No. 2: New York
  • No. 3: Washington
  • No. 4: Illinois
  • No. 5: Massachusetts
  • No. 6: Missouri
  • No. 7: Wisconsin

In terms of ranking factors, Texas benefited the most from landing at No. 2 among the states for its impact on the digital economy. The study pegged Texas’ digital economic impact at $141.7 billion, well below California’s impact of $492.8 billion.

Hostinger relied primarily on government data on 31 states to come up with the ranking. “The research provides a detailed ranking based on a composite score that reflects each state's overall investment and capacity for digital innovation,” the company says.

More than 30,000 businesses in Texas participate in the digital economy, according to the Computer & Communications Industry Association (CCIA). Those businesses employ more than 633,000 people and account for over six percent of the state’s GDP, a key measure of economic strength.

“As technology companies face increasing scrutiny through state and national legislation and litigation, it’s crucial to recognize the significant positive impacts of the digital economy that resonate across the United States,” says the CCIA.

Texas Medical Center Innovation won a Prix Galien Award, which has been described as being comparable to the Nobel Prize for the life science community. Photo by Natalie Harms/InnovationMap

Houston's Texas Medical Center wins prestigious global award recognizing leaders in life science innovation

new bling

Last month, a global organization honored innovation leaders in life sciences, and the Texas Medical Center was among the recipients of the prestigious awards program.

The 18th annual Prix Galien Awards Gala awarded TMC Innovation with the win in the "Incubators, Accelerators and Equity" category. The Galien Foundation created the awards program in 1970 in honor of Galien, the father of medical science and modern pharmacology. Alongside TMC, the other winners represented biotech, digital health, startups, and more.

"We are super proud of this distinction," Tom Luby, director of TMC Innovation says at Envision 2024 last month, crediting the TMCi team and TMC leadership for the award. "We lean on a lot of advisers and experts — people who volunteer their time to work with startups. Without (them), we would not have been successful."

Luby explains that a Prix Galien Award holds a Nobel Prize level of significance for the community.

TMCi was named a finalist in August, and competed against programs from Cedars-Sinai, Mayo Foundation for Medical Education and Research, TechConnect, and more.

"The Awards Committee is honored to witness the exceptional dedication and creativity of our nominees as they turn visionary ideas into transformative solutions for patients worldwide," says Michael Rosenblatt, chair of the Prix Galien USA Awards Committee, in a news release. "Their unwavering commitment to advancing patient care is truly commendable, and we are honored to celebrate their outstanding contributions to global health."

The award is displayed at TMC Innovation's office, located in the medical center at 2450 Holcombe Blvd.

A Houston-based initiative has been selected by the DOE to receive funding to develop clean energy innovation programming for startups and entrepreneurs. Photo via Getty Images

Houston initiative selected for DOE program developing hubs for clean energy innovation

seeing green

Houston has been selected as one of the hubs backed by a new program from the United States Department of Energy that's developing communities for clean energy innovation.

The DOE's Office of Technology Transitions announced the the first phase of winners of the Energy Program for Innovation Clusters, or EPIC, Round 3. The local initiative is one of 23 incubators and accelerators that was awarded $150,000 to support programming for energy startups and entrepreneurs.

The Houston-based participant is called "Texas Innovates: Carbon and Hydrogen Innovation and Learning Incubator," or CHILI, and it's a program meant to feed startups into the DOE recognized HyVelocity program and other regional decarbonization efforts.

EPIC was launched to drive innovation at a local level and to inspire commercial success of energy startups. It's the third year of the competition that wraps up with a winning participant negotiating a three-year cooperative agreement with OTT worth up to $1 million.

“Incubators and Accelerators are uniquely positioned to provide startups things they can't get anywhere else -- mentorship, technology validation, and other critical business development support," DOE Chief Commercialization Officer and Director of OTT Vanessa Z. Chan says in a news release. “The EPIC program allows us to provide consistent funding to organizations who are developing robust programming, resources, and support for innovative energy startups and entrepreneurs.”

CHILI, the only participant in Texas, now moves on to the second phase of the competition, where they will design a project continuation plan and programming for the next seven months to be submitted in September.

Phase 2 also includes two national pitch competitions with a total of $165,000 in cash prizes up for grabs for startups. The first EPIC pitch event for 2024 will be in June at the 2024 Small Business Forum & Expo in Minneapolis, Minnesota.

Last fall, the DOE selected the Gulf Coast's project, HyVelocity Hydrogen Hub, as one of the seven regions to receive a part of the $7 billion in Bipartisan Infrastructure Law. The hub was announced to receive up to $1.2 billion — the most any hub will get.

The DOE's OTT selections are nationwide. Photo via energy.gov

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This article originally ran on EnergyCapital.

Tech startups are leaving Silicon Valley in droves — and some are finding benefits in heading back to school. Miguel Tovar/University of Houston

Siliconned: Leaving Silicon Valley for universities

Houston Voices

Silicon Valley has been a tech startup paradise for decades. It has been described as the modern day Florence in the Renaissance. Tech gods from Apple and Google to Facebook and Twitter were born here. We can credit Silicon Valley as the birthplace for such world-changing innovations like smartphones, microprocessor chips, Tesla automation, and WIFI-enabled teapots.

Okay, so maybe that last one isn't changing the world, but it was created in the Valley and it's changed my life, for whatever that's worth. If Silicon Valley were a country, it would have the 19th-biggest economy on the planet. There's no doubt it is an engineer's dream. A techie's haven. A capitalist's utopia. A beacon of the modern world.

Or at least, it used to be.

Now leaving the Bay Area

There is an exodus in Silicon Valley. It's been happening for about three years. For instance, according to a 2018 poll conducted by the Bay Area Council, 46 percent of survey takers admit they plan to leave the Bay Area in the next year. Couple that with the fact that Silicon Valley investors have allocated 66 percent of their funds into startups outside of Silicon Valley, compared with 50 percent just six years ago, and you have a recipe for a great exodus to other markets around the country.

Now, just for kicks, add to all of this that the Kauffman Foundation's research has pegged Miami-Fort Lauderdale as the number one city in America for startup activity. Where does Silicon Valley's Bay Area, formerly the world's preeminent hub for tech startups, rank? Fourteenth. How the mighty have fallen.

So, to what exactly can this mass egress be attributed?

Insufficient funds

The biggest reason is cost.

The cost of living in the Bay Area is one of the steepest on the planet. Startups in the Valley pay four times what they would in any other city in the country. In fact, just last year the California Association of Realtors reported that a typical family in San Francisco has to make over $300,000 a year in order to afford a median-priced house tagged at just over a million dollars. That includes a 20 percent down payment and an $8,000 monthly payment. Because most of the startups in Silicon Valley are in their infancies, the engineers, programmers, and non-technical employees don't get compensated enough to afford such a living. As a result, they are leaving the Bay Area in droves for places where the cost of living is manageable.

One location that tech startup entrepreneurs are flocking to is the university. Universities are also retaining tech wunderkinds on campus to blossom their startups, rather than seeing them leave for the microprocessor motherland known as Silicon Valley.

Now entering university life

One of the biggest reasons universities have become hotbeds for tech startups is that campuses provide a means for people with multidisciplinary backgrounds to intermingle within the same space. A chemical engineering student with a great idea might meet an MBA during a startup launch party. Together they can build and market the second iteration of "Secret Stuff" from Space Jam, or whatever that student has in mind.

The point is that universities position aspiring entrepreneurs to network with the right people for building their company from the ground up. Even the Innovation Leadership Forum attests that innovation is born when different ways of thinking clash. That is precisely what happens on campuses every day.

Furthermore, college students also have more room to take risks. Most aspiring entrepreneurs in college between 18 and 25 are not married, do not have kids, mortgages, or any other major financial responsibilities. This allows them to have the luxury of leeway when it comes to experimenting and trial and error.

The ecosystem of innovation

In essence, academic incubators are courting tech entrepreneurs because universities offer an ecosystem designed to support and grow startups from conception to commercialization. This ecosystem includes a space where researchers, faculty, and students of all disciplines interact and form working relationships. In many cases, it also includes university owned equipment and laboratories for use by startup researchers.

There is, of course, incentive for universities to concentrate so many resources to building incubators and luring startup entrepreneurs. There is an inherent sense of responsibility that universities have to create an academic climate that encourages students to explore new ideas. A sense of responsibility that encourages them to take more risks; to be fearless in their quest to use their intellect to enrich lives; to dream.

Moreover, university incubators also position schools as progressive institutions. Such positioning attracts elite researchers and enhances a university's reputation. Further, these incubators forge a bridge that links industry and academia in a way that Silicon Valley does not. That's because with academic incubators, startups are a stone's throw away from a place teeming with researchers, scientists, hungry students, and aspiring entrepreneurs: the university campus.

Consequently, it is no wonder that tech startups are leaving Silicon Valley for universities. It's also no surprise that students who have graduated are staying with their university's incubators to develop their companies. There, they have a place that cultivates innovation, encourages risk-taking, and is set up specifically to help them bring their tech to the world. In short, the university has become a hub set up to be conducive to thriving tech startups. And tech entrepreneurs have noticed.

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This article originally appeared on the University of Houston's The Big Idea.

Rene Cantu is the writer and editor at UH Division of Research.

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Intuitive Machines lands $600M satellite deal, NASA ‘spacecraft bus’ contract

space deals

Houston-based space infrastructure company Intuitive Machines has scored two astronomical deals.

The deals add to the company’s soaring success. As of June 30, Intuitive Machines had a record-high $1.8 billion backlog of orders, a $1.5 billion increase from the end of last year. The current backlog includes orders for more than 80 spacecraft.

The company, which went public in 2023, expects this year’s revenue to total $900 million to $1 billion. In the first half of 2026, Intuitive Machines generated nearly $393 million in revenue.

Intuitive Machines estimates its total available market is valued at more than $150 billion.

$600 million-plus deal represents ‘important milestone’

On Monday, Intuitive Machines said it picked up a $600 million-plus deal to develop three commercial satellites for an undisclosed customer over the course of about two years.

Intuitive Machines says it will design, manufacture, set up and support several spacecraft “for a critical communications infrastructure mission.”

Steve Altemus, the company’s CEO, says the deal represents “an important milestone for Intuitive Machines and reflects the confidence our customers place in our ability to deliver high-performance spacecraft for a broad range of mission needs.”

Company nails down NASA deal for ‘spacecraft bus’

A day after announcing the $600 million-plus deal, Intuitive Machines said it secured a new contract with NASA.

Intuitive Machines says NASA’s Jet Propulsion Laboratory in Southern California will use the company’s IM 300 “spacecraft bus” for an EAGLE-VSWIR Earth observation mission. The mission is scheduled to launch in 2028.

Aside from supplying the IM 300 bus, Intuitive Machines will carry out mission support services.

The low-Earth-orbit mission will be equipped with Intuitive Machines’ hyperspectral visible to shortwave infrared (VSWIR) instrument. This technology sees colors and details that aren’t visible to the human eye.

The instrument is “designed to perform surface biology and geology observations from Earth orbit while demonstrating technologies that could support future lunar and Mars exploration missions,” Intuitive Machines says.

Intuitive Machines builds mission-critical spacecraft, systems, and infrastructure for business and government customers. To date, the company has produced more than 300 spacecraft, delivered over 575 pounds of payload to the moon and launched about 100 satellites.

9 Houston-based companies make Fortune Global 500 list in 2026

Worldwide Rankings

Nine Houston companies landed on the 2026 Fortune Global 500 list, which ranks the world's largest corporations by revenue for the 2025 fiscal year.

Houston's showing on the list was led by energy companies, with Spring’s ExxonMobil claiming the top local spot. Here’s what Houston-area companies made the list, and where they ranked:

  • No. 15 ExxonMobil
  • No. 36 Chevron
  • No. 61 Phillip 66
  • No. 159 Sysco
  • No. 243 ConocoPhillips
  • No. 292 Enterprise Products Partners
  • No. 343 Plains GP Holdings
  • No. 460 SLB
  • No. 481 Hewlett Packard Enterprise

After 12 years as No.1, Arkansas-based Walmart was replaced this year by Seattle-based Amazon in the top spot for 2026. Amazon achieved this by bringing in $700 billion in revenue in 2025, representing a 12 percent increase from the previous year.

"Across global business, we see again and again that the leaders who are winning are those who embrace change,” Alyson Shontell, Fortune's editor in chief and chief content officer, said in a news release. "Amazon has topped the Fortune Global 500, knocking Walmart off its pedestal. The company has continually reinvented itself across new businesses and bold bets—including a $200 billion capital commitment, largely to building its capacity for AI and cloud computing, in this year alone."

The U.S. has 141 companies on the 2026 Fortune Global 500 list, which is the most of any country. Companies in America generated $15.5 trillion in aggregate revenues, a 6 percent increase from the previous year.

The number of women CEOs at Fortune Global 500 companies reached a record of 34 top leaders, who represented 6.8 percent of CEOs of companies on the list.

Technology was the standout growth industry on this year’s list, with 38 companies earning revenues that grew 20 percent to about $4 trillion in 2025, with profits climbing 36 percent to $835 billion. The financial sector accounted for the largest share of companies on the list again, with 123 companies in that sector. The energy sector claimed the No. 2 industry spot with 77 companies making the list.

In June, the Fortune 500 list was released, and Texas led the United States with 57 Fortune 500 companies headquartered in the state, generating $2.8 trillion in combined revenue.

Fast-growing Houston real estate startup surges to No. 7 on Inc. 5000

growth report

Houston-based Epique Realty has ridden the AI wave to rank among the Inc. 5000’s 10 fastest-growing private companies.

With three-year revenue growth of 23,210 percent, the AI-powered real estate brokerage appears at No. 7 on this year’s Inc. 5000 list. The 2026 list ranks private companies based on percentage revenue growth from 2022 to 2025.

Epique, founded in 2021, also ranks as the No. 1 fastest-growing company in Houston, No. 1 fastest-growing real estate company in the U.S., and No. 2 fastest-growing company in Texas.

Epique’s annual revenue surpasses $91 million

Between 2022 and 2025, the company’s annual revenue skyrocketed from $391,654 to more than $91.2 million. In 2025, the brokerage closed more than 23,000 deals and surpassed $7 billion in total sales, elevating Epique to the country’s 14th-largest real estate brokerage as measured by volume.

Epique’s network has more than 4,000 agents.

“To debut in the top 10 of the Inc. 5000 is absolute proof that when you relentlessly put agents first, exponential growth takes care of itself,” co-founder and CEO Joshua Miller said in a news release.

“We didn’t achieve this by following the industry playbook; we achieved this by burning it,” Miller added. “By fully funding our agents’ success through free health care, proprietary AI, and world-class leads, we’ve built a company where agents can finally thrive.”

The company’s other co-founders are Chris Miller, chief operating officer and vice president of expansion, and Janice Delci, chief financial officer.

Epique expands business to Canada, Mexico, Australia

The Millers and Delci have guided the company’s rapid expansion.

“Scaling our corporate support team to match [our] hyper-growth while seamlessly expanding across all 50 states and internationally to Canada, Australia, and Mexico takes an incomparable operational infrastructure,” Miller said.

“We have built an enterprise-grade technology ecosystem that allows us to absorb overhead and empower our agents at lightning speed,” he added. “This ranking validates that our disruptive model is working, and it is completely redefining the global industry standard.”

Epique launched its platform in 2023, touting itself as the industry’s first AI-powered brokerage. The startup’s platform provides AI tools for real estate agents to improve their marketing, streamline content creation, and boost engagement with clients and prospects.

Among Epique’s AI tools are:

  • ChatGPT for generation of property descriptions
  • AI-assisted creation of blog posts and agents’ bios
  • Production of Instagram quotes for social media marketing

“When we started Epique, we wanted to build a company that genuinely cared for its agents’ financial and physical well-being,” Delci says. “To see that vision translate into this level of historic record-breaking growth is a beautiful testament to the true power of radical generosity.”

Epique and fellow honorees will be recognized Oct. 14-16 at the 2026 Inc. 5000 Conference & Gala in Dallas.

Six other Houston-area companies land in top 250

Here are the six other Houston-area companies that claimed spots in the top 250 on the Inc. 5000 list. Each company name is followed by its ranking, headquarters city, and three-year growth rate.

  • No. 27 Empact Technologies, 8,275 percent
  • No. 60 Action1, 4,512 percent
  • No 75 Signs By G, 3,684 percent
  • No. 79 The ’Pause Life, 3,469 percent (Galveston)
  • No. 110 Turtlebox Audio, 2,576 percent
  • No. 178 Dahnani Private Equity Group, 1,904 percent (Stafford)

How did companies in Texas’ other major metros fare?

Here’s a breakdown of companies in the Austin, Dallas-Fort Worth, and San Antonio areas that made the top 250 on the Inc. 5000. Again, each company name is followed by its ranking, headquarters city, and three-year growth rate.

Austin (10 companies)

  • No. 9 Investment Watches, 15,741 percent
  • No. 72 Razor Metrics, 3,856 percent
  • No. 91 Autonomize AI, 2,921 percent
  • No. 102 Choose Your Horizon, 2,719 percent
  • No. 132 Wander Staffing, 2,296 percent
  • No. 144 Everyday Dose, 2,179 percent
  • No. 148 NetRise, 2,118 percent
  • No. 163 Nutrabound Labs, 1,999 percent (Bastrop)
  • No. 179 Steadily, 1,890 percent
  • No. 208 Tiny Health, 1,624 percent

Dallas-Fort Worth (11 companies)

  • No. 3 Yantran, 258,740 percent (Allen)
  • No. 12 Paek Management Group, 12,520 percent (Irving)
  • No. 82 Elite Robotics and Automation, 3,334 percent (Fort Worth)
  • No. 133 Outamation, 2,291 percent (Southlake)
  • No. 147 Red Creek Solutions, 2,119 percent (Frisco)
  • No. 155 JobTread Software, 2,071 percent (Dallas)
  • No. 164 DAX Eyewear, 1,977 percent (Nevada)
  • No. 186 Optimized Waste Removal, 1,830 percent (Fort Worth)
  • No. 204 Freight Flex, 1,642 percent (Denton)
  • No. 212 Maverick Power, 1,591 percent (McKinney)
  • No. 229 Innovative Life Sciences, 1,494 percent (McKinney)

San Antonio (one company)

  • No. 118 Hire With Near, 2,421 percent
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