ADVERTISEABOUT USSUBMIT A STORYSUBSCRIBETERMS OF USEPRIVACY POLICY
Visit our family of Brands

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."

From Your Site Articles
Ad Placement 300x100
Ad Placement 300x600

CultureMap Emails are Awesome

Property Showcase

Tesla, Houston City College to receive millions for workforce training

texas talent

Gov. Greg Abbott announced $1.73 million in workforce training grants for the Houston and Rio Grande Valley regions late last month, with the bulk of the funding heading toward Houston.

The funding comes through the Skills Development Fund (SDF) grant program from the Texas Workforce Commission. The grants will help train 689 current and new workers in technology, manufacturing, technology, logistics and other fields in high demand.

Three grants totaling $1.56 million will go to Houston City College to develop training programs for 602 Houston-area workers.

The largest grant, totaling $782,998, will go toward training 261 employees for Tesla Inc. as welders, maintenance technicians, process technicians and other jobs. In addition to Tesla’s $200 million megafactory in Brookshire, Texas, the electric vehicle company is also considering building a $10.1 billion solar cell manufacturing facility in Fort Bend County called Project Sun City. The company recently expanded its self-driving Robotaxi service throughout 610 Loop and northwest Houston.

A second grant of $690,044 will go toward training 300 workers at Texas Tissue LLC and Karsten Management LLC as frontline supervisors, production line operators, design specialists and maintenance technicians. An allocation of $83,963 will go toward training 41 workers at Watchfire Signs LLC as production supervisors, operations specialists, industrial maintenance technicians, and more.

According to HCC, its Corporate Training and Development will coordinate the program in partnership with the college’s Advanced Manufacturing Center of Excellence Southwest and the Material Science Center of Excellence Welding Department.

“These grants demonstrate how state agencies, employers and Houston City College can work together to meet evolving workforce needs, strengthen Texas businesses and create meaningful opportunities for workers,” HCC Chancellor Margaret Ford Fisher said in a news release.

TWC granted an additional $169,087 to Workforce Solutions Lower Rio Grande Valley to train 87 workers at Denso Ten America Limited, Alps Logistics (USA) Inc., Index Fresh Inc. and Emerson Electric Co.

“When we align local training directly with the needs of expanding industries, we strengthen the regional economy,” TWC Chairman Joe Esparza said in the news release. “These Skills Development Fund grants empower Houston City College and Workforce Solutions Lower Rio Grande Valley to provide the specialized, high-demand training that employers need to succeed right here in Texas.”

Texas A&M wins $5.4M DOE grant for advanced nuclear fuel research

fresh funding

The U.S. Department of Energy has awarded Texas A&M Engineering Experiment Station (TEES) a $5.4 million grant to research ways to turn nuclear waste into fuel.

The goal of the project, “Turning Nuclear Waste into Fuel with a Thorium Molten Salt Reactor,” is to develop innovative reactor fuel technology that could help transform long-lived nuclear waste into a valuable energy resource while advancing the future of nuclear power, according to Texas A&M.

Lin Shao, a Texas A&M professor of nuclear engineering, will lead the project and unite researchers from TEES, Savannah River National Laboratory and Abilene, Texas-based nuclear power company Natura Resources. The team will use experimental testing, fuel preparation, reactor design and computational modeling in their work.

“Texas A&M Engineering is honored to receive this support from the Department of Energy to advance groundbreaking nuclear energy technologies,” Robert H. Bishop, vice chancellor and dean of Texas A&M Engineering and director of TEES, said in a news release. “This research aligns directly with our mission to solve the nation’s most pressing engineering challenges through innovation and collaboration. We have an opportunity to develop solutions that reduce nuclear waste, improve energy reliability and help maintain American leadership in advanced nuclear technologies.”

Texas A&M’s award is part of the DOE's Advanced Research Projects Agency-Energy (ARPA-E) $50 million advancement for next-generation nuclear fuels through the High-performance Optimized Recycled Nuclear Isotopes for Gen IV reactors (HORNIG) program. Texas A&M was one of eight projects selected as part of the ARPA-E efforts.

“America’s energy future depends on bold innovation and strong partnerships between the federal government, national laboratories, universities and industry,” U.S. Deputy Secretary of Energy James P. Danly said when he awarded the grant on campus Oct. 29. “This project demonstrates how we can address long-term nuclear waste challenges while advancing technologies that strengthen our nation’s energy security. The Department of Energy is proud to support research that has the potential to unlock new value from existing nuclear materials and accelerate the deployment of advanced reactor systems.”

Zero-emission electric air taxi network to land in Texas in 2027

Electric Travel

San Jose, California-based aerospace company Archer Aviation is bringing its air-taxi system to the “Texas triangle” of Houston, Austin and Dallas-Fort Worth.

Currently, the planned zero-emission electric air taxi networks will use Archer’s Midnight air taxi to “turn 60- to 90-minute drives to major airports, business districts and major destinations into 10- to 20-minute flights,” the company said in a news release. Archer plans to begin flights in the Texas triangle next year.

The Midnight air taxi is an all-electric vertical takeoff and landing (eVTOL) aircraft. It can carry four passengers and a pilot and is designed for consecutive flights of about 20 miles.

Archer cites the Texas triangle as one of the busiest and fastest-growing “megaregions” in the country due to its proximity to coastal regions, major airports, and a number of business districts.

Archer Chief Commercial Officer Nikhil Goel described the air taxi experience to CW Houston as “100 times quieter than a helicopter for the price of an Uber Black.” He added that the air taxis are a combination of a helicopter, a small airplane and a drone.

In Houston, Archer’s air taxi network will aim to connect George Bush Intercontinental, William P. Hobby and Sugar Land Regional Airport with downtown destinations, including the Thompson Hotel helipad, and Galveston.

In Austin, it plans to link the city's Austin-Bergstrom International Airport and Austin Executive Airport with the F1 Circuit Helipad at the Circuit of the Americas. Archer debuted its Midnight aircraft at the F1 Prix in the Fan Zone and the F1 Paddock at Austin’s COTA.

The Dallas-Fort Worth network is slated to include Dallas-Fort Worth International Airport, Dallas Love Field, Addison Airport, Arlington Municipal Airport, Fort Worth Meacham International Airport and Perot Field Fort Worth Alliance Airport, plus major business hubs like Frisco Station.

“Texas is setting the bar for America’s leadership in the next generation of aviation,” Adam Goldstein, founder and CEO of Archer Aviation, said in the release. “Our planned networks will make the benefits of electric air taxis real for Texans — trading hours in traffic for minutes in the air, while connecting the biggest airports, business districts and sporting hubs in ways that America’s largest megaregion needs to grow.”

Archer is working with state and local partners to develop charging infrastructure and plans to pursue Texas operations through the White House’s eVTOL Integration Pilot Program, according to the release. It recently completed its "No Roads" flight tour, which included multiple flights over the San Francisco Bay, and flew to seven cities over three days.

---

This article first appeared on InnovationMap.com.

View All Listings