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 - Planet Savers

June - Voltpost

July - TBD

August - TBD

September - TBD

October - TBD

November - TBD

December - TBD

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Active Surfaces (2023) - Website

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

ACUA Ocean (2021) - Website

• 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). 
• ACUA Ocean teams with the British Navy, enhancing Anti-Submarine warfare (article). 

Adept Materials (2018) - Website

• 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). 

Aeroshield (2019) - Website

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

AMATEC (2022) - Website

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

Anax Power (2019) - Website

• Anax Power is one of many projects that the Pennsylvania DEP has given grants to in order to help Pennsylvania reduce greenhouse gas emissions by installing four 500-kW turbo expander units to generate 2 MW of power at the Texas Eastern Transmission station (article).  

Apis Innovation (2019) - Website

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

Arbon (2024) - Website

• 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) - Website

• 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) - Website

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

BLUEiQ (2023) - Website

• 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). 
• BlueiQ has been featured in an article by Scott Kirsner in MassLive for testing their network of floating sensors in the Boston Harbor to learn what's occurring underwater (article)
• BlueiQ has been named a finalist for the Massachusetts Innovation Network 2026 Eddies (article).

Bluesonde Technologies (2025) - Website

• 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). 

BlueTrace (2018) - Website

• BlueTrace has been continuing to expand their platform and is planning on moving into the international market (article).

Capro-X (2018) - Website

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

Carbion (2026) - Website

• Carbion has been announced as part of the fourth and final Carbontech Development Initiative cohort of research and commercialization grants (post).

CarbonDots (2025) - Website

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

Change: WATER Labs (2017) - Website

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

CLIP (2020) - Website

• CLIP is selected as one of five NYC based startups to receive Chloe Capital's 2025 Founder Fellowship (article). 
• CLIP has been selected as the social enterprise for Shine USA's Second Edition (article).

Coulomb (2024) - Website 

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

Cyrtan Energy (2020) - Website

• 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) - Website

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

Ecotone Renewables (2021) - Website

• Ecotone Renewables is spotlighted in a Forbes interview discussing the development of their waste management systems (article). 
• Ecotone Renewables had a feature done on them in the WPXI Pittsburgh News 'Our Region's Business' section (news clip).
• Ecotone Renewables has just received their second utility patent (post).

Elateq (2020) - Website

• 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).

Enersion (2019) - Website

• Enersion has been one of ten companies selected as part of the International Landing Pad cohort (post). 

EV Bots (2023) - Website

• EV Bots has been announced as a finalist in the Automate Startup Challenge which brings early-stage robotics and automation companies in for a live pitch competition (post).
• EV Bots has been named Audience Favorite at the Trans-Atlantic Angel Conference (TAAC) Demo Day (post).

EV buddy (2022) - Website

• 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).

Finsulate (2021) - Website

• Finsulate's co-founder Bernard Didier wrote an article about how biocide-free hull protection technology is a critical but overlooked piece of ferry decarbonization (post).

Florrent (2022) - Website

• Florrent has announced a partnership with the Data Center Power Coalition to streamline how AI gets powered (post). 

Flux Marine (2019) - Website

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

Foregger Energy Solutions (2025) - Website

• 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). 
• Foregger has been announced the undergraduate winner at the B.E.T.A Challenge (article).
• Foregger is now a resident company at The Engine, a business incubator for companies in Hard Tech (article).
• Foregger has been named a finalist for the Massachusetts Innovation Network 2026 Eddies (article).

Gamotech (2025) - Website

• Gamotech is selected for Scale For ClimateTech's (S4C) Cohort 7 (post).
• Gamotech's CEO Olivier Brault has been selected as winner of Company of the Year (with less than 15 employees) at the Stellar Gala 2026 (article).
• Gamotech has been featured in Transport Routier covering their company's partnership with Cleo to turn utility trucks into energy plants (article).

Gencores (2024) - Website

• 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) - Website

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

GreenIRR (2023) - Website

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

HYDGEN (2025) - Website

• The CTO of HYDGEN Dr. Goutam Kumar Dalapati was featured in The Hindu Businesslike with Professor Amarendu Nandy covering issues with India's hydrogen policy and how they're working to fix it (article).

Innovia GEO (2020) - Website

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

Kara Water (2019) - Website

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

Materium Technologies (2025) - Website

• Materium Technologies has been featured in The Business Journal for their growth into Ohio to become a part of the Synthe6 Materials Accelerator cohort at Bounce Innovation Hub in Akron (article). 
• Materium Technologies has been introduced into the Spring 2026 cohort of Science Inc. | Cleantech and Materials (post).

MicroEra Power (2016) - Website

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

Natel (2006) - Website

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

PFASolve (2025) - Website

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

Photon Vault (2024) - Website

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

Planet Savers (2024) - Website

• Planet Savers is selected as the sixth recipient of the JPY 100 million grant from the Mitsui & Co. Co-creation fund (article). 

PolyGone (2025) - Website

• 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). 
• PolyGone Systems CEO and Co-Founder Nathaniel Banks is selected as an honoree for the 2026 Innovate100 listing (article). 
• PolyGone Systems Co-Founder, Yidian Liu, has been named a 2026 Tory Burch Foundation Fellow, joining 120 women entrepreneurs from across the United States (article).

Princeton NuEnergy (2021) - Website

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

RenewCO₂ (2020) - Website

• RenewCO₂ has been featured in a BusinessWire article for their recent collaboration with Ohmium's platform to accelerate the commercialization of CO₂-to-chemicals (article).
• RenewCO₂ has been featured in a gas world article covering their partnership with Ohmium on CO2-to-chemicals scale-up (article).

rStream (2021) - Website

• 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) - Website

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

Solstice Power Technologies (2015) - Website

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

Sparkcharge (2016) - Website

• 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). 

Spear the Air (2025) - Website

• Spear the Air has been announced as part of the fourth and final Carbontech Development Initiative cohort of research and commercialization grants (post).

Teragen Energy (2025) - Website

• Teragen Energy is named the first-ever recipient of The Engine's Ignition Pass (post).
• Teragen has been welcomed as a member of the 2026 Cohort for Activate, a fellowship program for entrepreneurial scientists (article). 

Terrament (2024) - Website

• Terrament has joined For Climate Tech's 2026 cohort which is sponsored by NYSERDA (article).

Turnover Labs (2024) - Website

• Turnover Labs has been announced as part of the fourth and final Carbontech Development Initiative cohort of research and commercialization grants (post).

Verde Technologies (2022) - Website

• Verde Technologies has recently appointed solar and deep tech startup builder Jean-Noël Poirier as their new CEO (post).

Voltpost (2021) - Website

• 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). 
• Voltpost expands their growth with the installation of public EV charging posts in Washington D.C. (article). 
• Voltpost has recently connected with PG&E to work on turning streetlights into EV chargers (article).
• Voltpost had a feature done on them in Substack by Climate Capital interviewing their founders Jeff Prosserman and Luke Mairo (post). 
• Voltpost's Director of Business Development, James Everly, has been interviewed by SAE International covering how their streetlight charging solutions are blending into cities (video).
• Voltpost has been featured in AT&T Business Customer Stories to show how they're using the AT&T Global SIMs and Control Centers in their company (video).

Zero Homes (2021) - Website

• 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).