Read about Cleantech Open Northeast alumni successes and milestones! As the country moves forward towards clean energy and climate conscious activities, Cleantech Open Northeast will be posting news of our alumni throughout the year. We want to highlight these visionary companies and celebrate the successes they experience as they work towards a better, healthier future for all of us. Alumni startups participating in the Cleantech Open Northeast are especially well-positioned to have real potential for global impact. Read about these companies’ successes and transformative, necessary work below.

*This blog will cover the entire year, so come back often to see the latest updates! 

**The years in parenthesis indicate when the startups participated in the Cleantech Open accelerator

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Featured Alumni of the Month

January - Princeton NuEnergy

February - Zero Homes

March - PolyGone Systems

April - Grain Ecosystem

May - TBD

June - TBD

July - TBD

August - TBD

September - TBD

October - TBD

November - TBD

December - TBD

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ACUA Ocean (2021)

• ACUA Ocean CEO Neil Tinmouth is appointed to the UK government's Robotics Advisory Group (article). 
• ACUA Ocean is featured on Resilience Media's 100 startups to watch in 2026 (post). 

Adept Materials (2018)

• Adept Materials is featured in the Boston Globe, spotlighting their journey and launch of Lilypad technology (article). 
• Adept Materials earns Silver at the Edison Awards for their Lilypad Paint, recognizing innovation in materials (article). 

Active Surfaces (2023)

• Active Surfaces is featured in MIT Energy Initiative for growing their solar panel technology into the future energy landscape (article). 

Aeroshield (2019)

• Aeroshield is on display at the Smithsonian National Air and Space Museum (article).

Amatec (2022)

• Amatec is selected for the 2026 NYC Economic Corporation Development Founder Fellowship Coort (article). 

Apis Innovation (2019)

• 75 Apis smartWells are deployed in the LRI Landfill in Washington (article). 

Arbon (2024)

• Arbon is selected as one of ten companies for the Carbon to Value Initiative Cohort 5 (article).
• Arbon is selected for the 2026 NYC Economic Corporation Development Founder Fellowship Coort (article). 

Arculus Solutions (2024)

• Arculus Solutions is featured in the Pipeline and Gas Journal, spotlighting their pipeline corrosion prevention (article). 
• Arculus Solution is selected for Scale For ClimateTech's (S4C) Cohort 7 (post). 

Biomific (2025)

• Biomific is selected for the 2026 NYC Economic Corporation Development Founder Fellowship Coort (article). 

BLUEiQ (2023)

• BLUEiQ is partnering with NOAA to deploy its AI-powered ocean sensor technology to monitor the endangered North Atlantic Right Whales (article). 
• Kim Gavin of BlueiQ is selected for the Project W 2026 WEB Climate Tech Cohort (article). 

Bluesonde (2025)

• Bluesonde partners with Portland Water District on a multi-month field trial to validate buoy performance in freshwater and expand water monitoring capabilities (post).
• Bluesonde partners with Aquatic Sensors as their North American distributor (post). 

Capro-X (2018)

• Capro-X is selected for Scale For ClimateTech's (S4C) Cohort 7 (post). 

CarbonDots (2025)

• CarbonDots is chosen as an awardee of the NJEDA Commission on Science, Innovation, and Technology (CSIT) grant (article). 

Change: WATER Labs (2017)

• Diana Yousef-Martinek of change: WATER Labs is selected for the Project W 2026 WEB Climate Tech Cohort (article). 

CLIP (2020)

• CLIP is selected as one of five NYC based startups to receive Chloe Capital's 2025 Founder Fellowship (article). 

Coulomb (2024)

• Coulomb is selected for Scale For ClimateTech's (S4C) Cohort 7 (post).

Cyrtan Energy (2020)

• Kwaku Jyamfi, CEO of Cyrtan Energy, is named a recipient of the Carnegie Mellon University Young Alumni Achievement Award (article). 
• Kwaku Jyamfi of Cyrtan Energy is recognized on the Forbes 30 under 30 Manufacturing and Industry list. (article).

Drinkwell (2014)

• Drinkwell is named a 2026 Schwab Foundation for Social Entrepreneurship Award winner (article). 

Elateq (2020)

• Elateq wins funding as part of Massachusetts Clean Energy Center's 4.5-million-dollar funding for 23 clean energy and climate technology projects (article). 
• Elateq is accepted into Xylem's Partnerships Accelerator Program for Cohort 2026 (post).

EV Buddy (2022)

• EV Buddy is chosen as an awardee of the NJEDA Commission on Science, Innovation, and Technology (CSIT) grant (article). 
• EV Buddy launches EV Energy Sharing Platform, EVChargeShare, to reduce range anxiety and charger availability for EV drivers (article).

Flux Marine (2019)

• Flux Marine is featured in Princeton Alumni Weekly, spotlighting their sustainable electric boat motor (article). 

Foregger Energy Solutions (2025)

• Foregger Energy Solutions is selected to compete in the Rice Business Plan Competition (website).
• Foregger Energy Solutions is selected to participate in The Engine's Blueprint program founded by MIT (post). 
• Foregger Energy Solutions is selected to compete in the Hult Prize Nationals stage (post). 

Gamotech (2025)

• Gamotech is selected for Scale For ClimateTech's (S4C) Cohort 7 (post).

Gencores (2024)

• Gencores wins funding as part of Massachusetts Clean Energy Center's 4.5-million-dollar funding for 23 clean energy and climate technology projects (article). 

Grain Ecosystem (2024)

• Grain Ecosystem is acquired by Mangrove Systems (article). 

GreenIRR (2023)

• GreenIRR is selected as one of five NYC based startups to receive Chloe Capital's 2025 Founder Fellowship (article). 

Innovia GEO (2020)

• Innovia is selected for Scale For ClimateTech's (S4C) Cohort 7 (post).

Kara Water (2019)

• Cody Sooden, founder and CEO, is awarded the Technological Innovation Award at the Martin Luther King Jr. Center for Nonviolent Social Change (website). 

MicroEra Power (2016)

• Ellie Rusling of MicroEra Power is selected for the Project W 2026 WEB Climate Tech Cohort (article). 

Natel (2006)

• Natel is selected as one of TIME Americas Top GreenTech Companies 2026 (article). 

PFASolve (2025)

• PFASolve is chosen as an awardee of the NJEDA Commission on Science, Innovation, and Technology (CSIT) grant (article). 

Photon Vault (2024)

• Photon Vault receives support from a California Community Choice Aggregator (CCA) for their next-gen thermal energy solutions (article). 

Princeton NuEnergy (2021)

• Princeton NuEnergy signs MOU with Honda to advance next-generation lithium-ion battery recycling (article).

PolyGone (2025)

• PolyGone Systems is mentioned as a recipient of increasingly important funding from angel funder Golden Seeds (article).
• PolyGone Systems is featured in the Fortune Newsletter for their $4M seed funding (article).
• PolyGone Systems is highlighted by AI Tech Supports for their $4M seed funding (post). 
• PolyGone Systems' Co-Founder Yidian Liu is featured as part of Inc.'s 2026 Female Founders 500 list (article). 
• PolyGone Systems is selected to present their technology at the Forbes 30 under 30 summit (post). 

rStream (2021)

• rStream Co-founders Ethan Walko and Ian Goodine are recognized on the Forbes 30 under 30 Energy and Green Tech list (article). 

Sensible Photonics (2022)

• Sensible Photonics is selected to compete in the U.S. DOE Energy Program for Innovation Clusters Pitch Competition (article). 

Sparkcharge (2016)

• Sparkcharge CEO and Founder Josua Aviv is featured to speak on Bloomberg Businessweek Daily (video). 
• Sparkcharge is selected as one of TIME Americas Top GreenTech Companies 2026 (article). 

Solstice Power Technologies (2015)

• Solstice Power Technologies are acquired by Perch (article).

Teragen Energy (2025)

• Teragen Energy is named the first-ever recipient of The Engine's Ignition Pass (post).

Voltpost (2021)

• Voltpost continues to expand with their deployment of EV charging posts in Detroit, Michigan (article). 
• Voltpost supports Pennsylvania's investment in community EV charging in towns, using existing streetlight infrastructure (article).  
• Voltpost expands their growth with the installation of EV charging posts in Pleasant Ridge, Michigan (article).
• Voltpost is spotlighted as one of Fast Company's most innovative in transportation for 2026 (article). 
• Voltpost partners with Eco-Movement to expand EV charging infrastructure discovery (article). 

Zero Homes (2021)

• Zero Homes is awarded a prestigious grant from the Colorado Office of Economic Development and International Trade (OEDIT)’s Advanced Industries Accelerator Program (article).
• Zero Homes closes a $16.8M series A to scale their approach to home electrification (article). 
• Zero Homes is featured in Canary Media for their recent Series A funding (article). 
• Zero Homes is spotlighted in Realty NXT for their Series A funding (article).