Our 200+ startups never fail to impress us with their hard work and commitment to scaling their climatetech solutions! Check out their latest accomplishments below.

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Funding

• Form Energy, developer of long-duration iron-air battery systems, received an award negotiation of up to $150M from the U.S. Department of Energy (DOE) under the Bipartisan Infrastructure Law’s Battery Materials Processing and Battery Manufacturing program. The award will help fund a new manufacturing line at Form Energy’s factory in West Virginia.
• American Battery Technology Company received a $150M grant from the DOE to help build a commercial-scale lithium-ion-battery recycling facility that will process about 100,000 metric tons of battery materials annually.
• Sublime Systems—a startup decarbonizing cement-making with a carbon-free electrochemical system—received $75M in investments from Greentown partner Holcim and from CRH. These partnerships involve Sublime Systems providing its cement to both corporates through offtake agreements; Holcim and CRH supporting the advancement of Sublime Systems’s first commercial manufacturing facility; and Sublime Systems collaborating with each of the companies to co-develop future facilities to scale and commercialize its technology.
• Dandelion Energy raised a $40M Series C led by Google Ventures that will support the home geothermal company’s nationwide expansion of the world’s most efficient geothermal heat pump.
• Mantel Capture raised a $30M Series A—co-led by Greentown partner Shell—to advance its carbon capture materials that can operate at the high temperatures found inside boilers, kilns, and furnaces, enabling highly efficient carbon capture.
• Carbon to Value Initiative (C2V Initiative) Year 4 participant Phlair raised a €14.5M seed round for its renewable-energy-powered direct air capture (DAC) system.
• AmpUp, a startup radically simplifying EV charging with smart technology solutions, closed a $15M Series A.
• C2V Initiative Year 4 cohort member Oxylus Energy closed a $4.5M seed round to support the development of its direct electrochemical process that converts CO₂ into fuels and chemical feedstocks such as methanol.
• Transaera received two DOE grants totaling $3.1M to advance its portable, energy-efficient air conditioning tech, including via a partnership with the University of Central Florida and the Southeast Energy Efficiency Alliance.
• Stepwise, which enables homes to electrify efficiently and affordably, won a $1.4M grant from the DOE to advance a product for heat pumps and heat pump water heaters.
• Giner Labs received DOE funding to help it develop lower-cost EV batteries.
• C2V Initiative alum AIR COMPANY raised a $69M Series B for its sustainable aviation fuel.
• Greentown alum OpConnect fundraised almost $5.3M for its EV-charging solutions.
• Greentown alum C16 Biosciences received a $1.45M award from the U.S. Department of Defense to plan a domestic facility to produce its climate-friendly palm-oil alternative.

Partnerships + Deployments

• Haffner Energy signed an agreement with IðunnH2 to integrate its biomass-to-clean-fuels tech in the 65,000 metric tons/year electro-sustainable aviation fuel (e-SAF) facility under development by IðunnH2. It also announced a partnership with Bambbco, France’s leading bamboo provider, to diversify Haffner’s procurement of sustainable biomass, and will deploy its tech in a French green hydrogen project led by the Nedey Automobiles Group that will produce 240 metric tons of hydrogen and 1,000 metric tons of biochar annually.
• Nth Cycle’s state-of-the-art refining facility in Fairfield, OH began operations, marking the United States’s first production of nickel and cobalt mixed hydroxide precipitate—critical metals for the energy transition—from scrap.
• Clean Crop Technologies is piloting its technology within Diageo’s network of more than 60,000 smallholder farmers in East Africa, in partnership with Diageo’s subsidiary East African Breweries.
• Sublime Systems signed an MOU with Microsoft for the purchase of environmental attribute certificates generated from Sublime’s first commercial facilities.
• SeaDeep is partnering with the Seabed 2030 Project to assist in creating a comprehensive map of the ocean floor by 2030.
• Greentown alum Fervo Energy achieved record-breaking commercial flow rates at its Cape Station project’s first well test—making it the most productive enhanced geothermal system in history—and secured a $100M construction loan to accelerate its operations.
• Greentown alum Infinite Cooling, a pioneer in sustainable water recovery, is testing its tech at EDF’s Bugey Nuclear Power Plant in France.
• Greentown Go alum Mitico executed a contract with nine industry partners for a paid demonstration project in Canada, having finished building its scaled-up system to capture CO₂ from flue gasses.
• Greentown alum SmartAC.com is partnering with Wrench Group to incorporate the startup’s advanced home-health-monitoring technology into Wrench Group’s service network.

Awards + Recognition

• Neuralix won first place at Greentown partner Shell’s Global Hackathon for Sustainable and Affordable Energy.
• Terralytiq was accepted to Techstars Washington D.C.
• Helix Earth Technologies won the $20k second-place prize in the RE+ EPIC Prize Pitch Competition.
• Greentown members and alumni Ardent, Corrolytics, Elementium Materials, Mitico, Osmoses, Oxylus Energy, and Revterra were named among the 10 most-promising energy tech startups at the Rice Alliance for Technology and Entrepreneurship’s annual Energy Tech Venture Forum.
• Greentown members and alumni AeroShield, Applied Bioplastics, Kanin Energy, Mitico, Oxylus Energy, Reverse Energy Solutions, and Upstream Tech were chosen for Trellis (formerly GreenBiz)’s 25 Climate Tech Startups to Watch list.
• Cemvita, Element Resources, and Neuralix were honored at Greentown Houston’s Climate Impact Awards Dinner with awards that had been voted on by their fellow members.
• The co-founders of Rarefied Technologies—a Greentown alum formerly known as MicroAvionics—were selected for the fourth Breakthrough Energy Fellows cohort.
• Greentown members Beacon Climate Innovations won the Community Impact Award and Browning the Green Space (BGS) won the Startup Supporter of the Year Award at The Alliance for Climate Transition (formerly the Northeast Clean Energy Council)’s Green Future Gala. 
• Active Surfaces won the Product Development Grant at FORGE’s Manufacturing Mash-up.
• Greentown members and alumni Fervo Energy, Form Energy, Lydian, Electra, and WeaveGrid were chosen by Congruent Ventures and SBV for a list of “50 companies that have strong potential to drive carbon reduction over the next 25 years.”
• Yet-Ming Chiang, co-founder of Greentown members Form Energy and Sublime Systems, was named to Forbes’ 2024 Sustainability Leaders list.
• Greentown Go alum Open Ocean Robotics won the Autonomous System Award at BlueTIDE 2024.