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Greentown Labs shares updates on newest climatetech members

all aboard

Nine companies have joined Greentown Houston. Photo via Getty Images

Greentown Labs announced that it added nine climatetech start-ups in Q2 of this year.

The new members of the incubator, which is co-located in Houston and Boston, work in a variety of fields from electricity to manufacturing and agriculture.

The companies in the Houston location include:

  • GS Vortex Systems, a Portland-based company that focuses on cost reduction and flow assurance in piping systems. Its hydrodynamic flow technology allows for higher flow through existing pipes that increases productivity and reduces emissions. It’s based in Houston and Tampa.
  • BiaTech Corporation, applies AI and machine learning fto natural resource infrastructure immersion to help energy and utilities produce more with lower risks of production disruptions
  • InfraNergy, a Florida-based clean energy infrastructure provider that develops clean energy projects via virtual power plants to reduce power costs and drive decarbonization
  • Neuralix, a Dallas-based startup that offers a suite of rapid, customizable templates for data lifecycle for the energy and manufacturing sectors
  • Reverse Energy Solutions, a Chicago-based startup that provides cost-effective solar panel recycling through streamlined collection and transportation processes
  • Terralytiq, which has developed an enterprise software platform for industrial supply chains, that helps reduce supply chain costs and carbon. It’s headquartered in Austin.
  • EnergyGigs, a talent and freelance platform for the energy industry based in Houston
  • Metalex, a commodity trading firm with operations in Africa that delivers carbon-neutral critical metals that are processed in a decarbonized supply chain
  • TDS Select, which has developed a modular, scalable water-treatment technology to desalinate brackish water using low-energy

According to Greentown, another 11 startups joined the nonprofit's Boston incubator.

Greentown Labs, with the Browning the Green Space, named the second cohort for the Advancing Climatetech and Clean Energy Leaders Program, or ACCEL, in the spring. The accelerator, which works to advance BIPOC-led startups in the climatetech space, launched in 2022.

It also named 6 energy tech startups to Shell-backed accelerator in October.

Earlier this month the climatetech incubator added three new members to its board of directors. This came after CEO and President Kevin Knobloch announced he would be stepping down at the end of July. Kevin Dutt was recently named interim CEO of the organization.

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Houston robotics company partners with Marathon Petroleum to scale fleet

robot alliance

Houston- and Boston-based Square Robot Inc. has announced a partnership with downstream and midstream energy giant Marathon Petroleum Corp. (NYSE: MPC).

The partnership comes with an undisclosed amount of funding from Marathon, which Square Robot says will help "shape the design and development" of its submersible robotics platform and scale its fleet for nationwide tank inspections.

“Marathon’s partnership marks a major milestone in our mission to transform industrial tank inspection,” David Lamont, CEO of Square Robot, said in a news release. “They recognize the proven value of our robotic inspections—eliminating confined space entry, reducing the environmental impact, and delivering major cost efficiencies all while keeping tanks on-line and working. We’re excited to work together with such a great company to expand inspection capabilities and accelerate innovation across the industry.”

The company closed a $13 million series B last year. At the time of closing, Square Robot said it would put the funding toward international expansion in Europe and the Middle East.

Square Robot develops autonomous, submersible robots that are used for storage tank inspections and eliminate the need for humans to enter dangerous and toxic environments. Its newest tank inspection robot, known as the SR-3HT, became commercially available and certified to operate at a broader temperature range than previous models in the company's portfolio this fall.

The company was first founded in the Boston area in 2016 and launched its Houston office in 2019.

$3B acquisition of hazardous waste co. tops latest energy news to know

Trending news

Editor's note: The top energy transition news for the month includes Veolia's $3 billion Clean Earth acquisition and ERCOT's new $9.4 billion project. Here are the five most-read EnergyCapitalHTX stories from December 1-16, 2025:

1. Hazardous waste company with Houston presence to make $3B acquisition

Veolia will acquire Clean Earth. Photo courtesy of Veolia/LinkedIn

Veolia, a Boston-based company with major operations in Texas, is purchasing hazardous-waste company Clean Earth from Enviri as part of a $3 billion deal. Veolia is a private water operator, technology provider and hazardous waste and pollution treatment company that operates a large hazardous waste treatment and incineration facility in Port Arthur. Hazardous waste treatment is a growing sector as the clean energy, semiconductor manufacturing, healthcare and pharmaceutical industries generate high levels of waste that need to be handled safely. Continue reading.

2. Federal judge strikes Trump order blocking wind energy development

A federal judge has thrown out President Trump's executive order blocking wind energy development, calling it 'arbitrary and capricious.' Photo by Moritz Lange via Unsplash.

In a win for clean energy and wind projects in Texas and throughout the U.S., a federal judge struck down President Donald Trump’s “Day One” executive order that blocked wind energy development on federal lands and waters, the Associated Press reports. Judge Patti Saris of the U.S. District Court for the District of Massachusetts vacated Trump’s executive order from Jan. 20, declaring it unlawful and calling it “arbitrary and capricious.” Continue reading.

3. Air Liquide and Hyundai ink partnership to scale hydrogen economy

Air Liquide and Hyundai agreed to expand hydrogen refuelling networks, storage capacity and more at a meeting in Seoul last week. Photo courtesy Air Liquide.

Air Liquide, which maintains its U.S. headquarters in Houston, and South Korea-based Hyundai Motor Group are expanding their strategic partnership to accelerate the growth of the global hydrogen ecosystem. The renewal of the companies’ Memorandum of Understanding (MoU) was announced at the Hydrogen Council CEO Summit in Seoul last week. Together, the companies will work to scale hydrogen production, storage, transportation and utilization across Europe, Korea and the United States with a concentration on heavy-duty transport, logistics and public transportation. Continue reading.

4. ERCOT approves $9.4B project to improve grid, meet data center demand

ERCOT plans to build a “super highway” of new transmission lines to boost grid reliability. Photo via Getty Images

The Electric Reliability Council of Texas, which manages the electric grid for 90 percent of Texans, is undertaking a $9.4 billion project to improve the reliability and efficiency of statewide power distribution. The initiative comes as ERCOT copes with escalating demand for electricity from data centers and cryptocurrency-mining facilities. Continue reading.

5. Reliant partners to expand Texas virtual power plant and home battery use

Reliant is offering new incentives to boost NRG's virtual power plant network in Texas. Photo via goodleap.com.

Houston’s Reliant and San Francisco tech company GoodLeap are teaming up to bolster residential battery participation and accelerate the growth of NRG’s virtual power plant (VPP) network in Texas. Through the new partnership, eligible Reliant customers can either lease a battery or enter into a power purchase agreement that incentivizes users by offering monthly performance-based rewards for contributing stored power to the grid. Continue reading.

Eclipse Energy lands Weatherford investment to scale clean hydrogen tech

clean energy collab

Oil and gas giant Weatherford International (NASDAQ: WFRD) has made a capital investment for an undisclosed amount in Eclipse Energy as part of a collaborative partnership aimed at scaling and commercializing Eclipse's clean fuel technology.

According to a release, joint projects from the two Houston-based companies are expected to launch as soon as January 2026. The partnership aims to leverage Weatherford's global operations with Eclipse Energy's pioneering subsurface biotechnology that converts end-of-life oil fields into low-cost, sustainable hydrogen sources.

“We strongly believe the subsurface is the most overlooked climate asset,” Prabhdeep Singh Sekhon, CEO of Eclipse Energy, said in the release. “This partnership demonstrates how traditional oilfield expertise and frontier biotechnology can come together to transform the energy transition. Weatherford’s global reach and deep technical knowledge will accelerate our ability to scale our low-carbon technology rapidly and cost-effectively.”

Eclipse Energy, previously known as Gold H2, completed its first field trial this summer, demonstrating subsurface bio-stimulated hydrogen production. According to the company, its technology could yield up to 250 billion kilograms of low-carbon hydrogen, and it could also extend "beyond hydrogen, laying the foundation for the next generation of subsurface clean energy fuels."

Last month, Eclipse Energy won in the Energy Transition Business category at the 2025 Houston Innovation Awards. The company closed an $8 million series A this year and has plans to raise another round in 2026.

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