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.

Interested in engaging with or joining our community of climatetech startups? Learn about how you can take action with our members or apply for startup membership!

Funding

• Lydian raised $43.7M for its sustainable aviation fuel made from CO₂.
• Helix Earth Technologies received a $1.2M SBIR grant for its high-efficiency retrofit dehumidification system that reduces the energy consumption of commercial AC units.
• Diffraqtion, whose AI cameras power ultra-high-resolution Earth and space imaging, closed $4.2M in a pre-seed round and a DARPA SBIR Direct to Phase II award.
• AeroShield received a $1M CriticalMass grant from the Massachusetts Clean Energy Center (MassCEC) and will partner with WinnCompanies to deploy and validate a full-scale, aerogel-insulated window installation at two upcoming affordable housing communities in Boston
• Candid Intelligence received an investment from SE Ventures for its agentic AI system that compresses months of pre-construction engineering into hours.
• Greentown alum Type One Energy, developer of a system for optimized stellarator fusion energy, raised $87M in a convertible note.
• Greentown alum Seasats, developer of long-endurance autonomous surface vessels, received a $24M award from the Department of War’s Accelerate the Procurement and Fielding of Innovative Technologies (APFIT) program.
• Greentown alumni SparkCharge and Embue received CriticalMass grants of $1M and $974k, respectively. As part of the awards:
  • SparkCharge will partner with Greentown partner Global Partners to deploy its mobile, off-grid DC fast-charging hubs at high-traffic retail sites in Worcester, Ayer, and Pittsfield, MA, with a focus on environmental justice communities. 
  • Embue will partner with the Preservation of Affordable Housing (POAH), WorcLab, and others to deploy its Multifamily Virtual Power Plant (VPP) platform at affordable and workforce multifamily housing sites and buildings across Massachusetts.
• Hera Materials, developer of scalable, sustainable, biomass-based packaging, received a $100k FORGE 2026 CT Product Development Grant.

Partnerships + Deployments

Awards + Recognition

• Mars Materials was selected for Greentown partner Shell’s Shell GameChanger program and successfully advanced past the first stage gate. The Shell GameChanger test program aims to validate bio-based sugar feedstock as an alternate raw material to CO₂ for the startup’s acrylonitrile pathway.
• Laminar‘s Unilever customer site in India was added to the World Economic Forum’s Global Lighthouse Network for supply-chain excellence. The startup is transforming how food and beverage factories run by using its in-line sensors and turnkey AI solution to unlock lost production time.
• Phytoform Labs, which is accelerating crop evolution to build a resilient and future-secure food system, was accepted into the N.C. Plant Sciences Initiative’s Seed2Grow agricultural technology incubator.
• Eleven Greentown members and alumni were named to Cleantech Group’s annual Global Cleantech 100: Alloy Enterprises, Ardent, Carbon Upcycling Technologies, DIOXYCLE, Hertha Metals, Moment Energy, Nth Cycle, Phoenix Tailings, Raptor Maps, SiTration, and ZwitterCo.
• Greentown members Adept Materials and Laminar and alum Cyvl are finalists for this year’s Edison Awards.
  • Go deeper: Learn how we’re collaborating with the Edison Awards to increase support for Greentown startups and to help the awards celebrate more climatetech innovators.