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 - Husk Power 

February - Voltpost

March - MicroEra Power

April - Active Surfaces

May - SparkCharge

June - Elateq

July - Zero Homes

August - ACUA Ocean, BLUEiQ, 13 Mari, SeaH4

September - Evonatura, Gamotech, Polygone, Teragen Energy (Regional Winners)

October - HYDGEN

November - Flux Marine

December - Bluesonde Technologies, Polygone, Scaled Carbon (Specialty Prize Winners)

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Aclarity (2018)

• Featured in the 2025 Global Cleantech 100 for Water Innovation and Developing a novel electrochemical approach to PFAS destruction (article)
• Cleantech Group Honors Outstanding Innovators Recognizing Aclarity as one of the Rising Star Companies of the Year (article)
• Aclarity offers scalable PFAS destruction for real-world cleanup needs (article)
• Julie Bliss Mullen, the founder, was recently featured by MassVentures for her groundbreaking work. (article)

Active Surfaces (2023)

• Woburn startup could give U.S. Solar Industry a second chance (article)
• Active Surfaces joined Cohort 6 in the 100+ Accelerator (post)
• Active Surfaces has won gold at the Edison Awards (article)
• Active Surfaces booked their first revenue through a partnership with the 100+ Accelerator -- powered by Colgate-Palmolive & other major consumer brands (post)
• Active Surfaces partnered with Boston Solar for a demo install at its Woburn, MA warehouse, collecting feedback from installers (article)
• Active Surfaces was awarded a $200K Massachusetts Manufacturing Accelerate Program (MMAP) and the $100K Lab MATCH grand prize from the DOE Office of Technology Commercialization (article; website)
• Active Surfaces was accepted into the Joules Accelerator, RESPOND Accelerator, 100+ Accelerator, and the PNPTC Japan Cohort (website)
• Active surfaces won an InnovateMass grant, funded by MassCEC, of $350,000 to further develop and scale their unique solar technology that reduces installation costs through adhesion (article)
• Among 10 other cleantech companies, Active Surfaces has been selected for Amazon's Sustainability Accelerator (article)
• Active Surfaces was featured in the Cleantech Group's 2025 Cleantech 50 to Watch (article)
• Active Surfaces was the grand prize winner in the the inaugural PITCH.nano competition, hosted by MIT.nano’s hard technology accelerator START.nano; they received 25,000 nanoBucks — equivalent to $25,000 that can be spent at MIT.nano facilities (article)

ACUA Ocean (2021)

• ACUA Ocean was featured in Fast Company’s World-Changing Ideas list for its autonomous ocean monitoring vessel (article)
• Their hydrogen-powered autonomous vessel, PIONEER, successfully completed a 24 hour continuous offshore sea trial, operating entirely on hydrogen-electric power (article)

Advanced Silicon Group (2015)

• Advanced Silicon Group won the People's Choice Award at the the inaugural PITCH.nano competition, hosted by MIT.nano’s hard technology accelerator START.nano; they received 5,000 nanoBucks — equivalent to $5,000 that can be spent at MIT.nano facilities (article)

AeroShield (2019)

• AeroShield Takes Bold Step Forward in Production of More Energy-Efficient Windows with Major Plant Upgrade (article)
• AeroShield Upgrades Plant for Production of Aerogel-Coated Glass (article)
• AeroShield is one of the track winners of the 2025 Hello Tomorrow Global Challenge (post)
• AeroShield Marks Milestone in Energy-Efficient Window Production with Creation of First Full-Size Aerogels for Entry Doors (article)
• AeroShield CEO & Co-Founder, Elise Strobach, is featured in Boston Globe Media’s “Tech Power Players 2025” (article)
• Founder & CEO, Elise Strobach, was featured in HackSummit’s “70 U.S. Women Founders in Climate to Know” (article)
• AeroShield was selected for Wells Fargo's IN2 Innovation Incubator, and featured in their recent article (article)
• AeroShield was featured in a Wall Street Journal article, highlighting their energy-efficient window tech (article)
• AeroShield's early pototypes are on display in the Smithsonian Institute (post)

Alchemr (2020)

• Alchemr Co-Founder, Laureen Meroueh, was featured in HackSummit’s “70 U.S. Women Founders in Climate to Know” (article)

Amply Energy (2023)

• Amply’s breakthrough software was recently featured in both the The New York Times Wirecutter and Mainebiz for its game changing role in modernizing heat pump installation (article; article)

Anax Power (2019)

• Anax Power and Magellan Scientific Use Turboexpander for Emissions-Free Computing (article)
• Anax Power partners with Enbridge and Magellan Scientific to deploy turboexpanders that convert wasted natural gas pressure into clean, zero-emission electricity (article)

Andluca (2020)

• Andluca Technologies showcased its wireless, solar-powered smart windows at the 2025 International Builders’ Show (article)

3D Architech (2022)

• 3D Architech was selected from 330 applicants across 45 countries for the 2024 Garage + Startup Global Program (article)
• 3D Architech was selected as one of the 8 MIT Sustainability Startups to Watch (article)
• 3D Architech has been awarded the Grand Prize at the Tohoku Tech Plan Grand Prix 2024 (article)
•  Unveiling the Startup 3D Architech's manufacturing of metal microstructures with Resin 3D Printing (article) 
• 3D Architech has been selected for the Sendai City NanoTerasu Trial Use Program for FY 2024 (article)
• Co-Labo Maker features the collaboration between 3D Architech and the Faculty of Science and Technology at Gunma University (article)

Arculus Solutions (2024)

• Arculus Solutions was selected as a Grand Finalist at the 12th The Lee Kuan Yew Global Business Plan Competition at Singapore Management University (article; post) 
• Arculus Solutions has been shortlisted for the Global Finals of the 13th Chaoyang International Talent Entrepreneurship Conference (ITEC2025) (post)

Averra (2025)

• Averra received a 2025 Sustainability Innovation Seed Grant from Innovate@BU (Boston University) (article)

BLUEiQ (2023)

• BLUEiQ is Enhancing Maritime Domain Awareness Through AI-Enabled Acoustic Buoys for Real-Time Detection & Tracking of Fast Moving Vehicles (article)
• Chosen against a rigorous set of criteria from 118 submissions, BlueiQ has been selected as a finalist in the Counter-small Unmanned Aircraft System (C-UAS) Low-Cost Sensing (LCS) challenge, and will demonstrate their sensor technologies during USNORTHCOM's Falcon Peak exercise in September 2025 (article)
• BLUEiQ was featured in a Newport This Week article for their pinpoint underwater tracking accuracy and accomplishments in ocean research and general maritime safety (article)

Bluesonde Technologies (2025)

• Bluesonde was recently featured in 2 articles for their innovative technologies and far-reaching impacts in the Maine cleantech ecosystem (article; article)

CF Technologies (2019)

• CF Technologies demonstrates first-of-its-kind supercritical biodiesel pilot in Wareham, MA (article)

Clean Valley CIC (2022)

• Clean Valley CIC joined the Blue Economy ClimAcceletator Malta Cohort (post)

Crowdcomfort (2014)

• Crowdcomfort received award as #198 of Deloitte's 2025 Technology Fast 500 (article)

Cyrtan Energy (fka Farm to Flame Energy) (2014)

• Cyrtan cofounder is recognized in Forbe's 30 Under 30 in Manufacturing and Industry (article)
  

CVector Energy (2024)

• They were selected as one of 25 innovators to pitch at Distributech 2025 as part of EPRI’s Incubatenergy Labs program (article)

Divert (2006)

• Divert Inc. Appoints Brad Lukow as Chief Financial Officer (article)

Drosera Bio (2024)

• Drosera Bio was featured in Teknoscienze's recent article: "Enabling the Future: Why Innovation in Purification Media Is Essential for Next-Generation Biologics", for their cutting-edge work developing new purification media (article)

D.TO (2024)

• D.TO has joined the Autodesk AECO Technology Partner program, now allowing their platform to analyze Revit views, automatically generate high-quality assembly options, and seamlessly export linked details (article). 

Ecotone Renewables (2021)

• Ecotone Renewables has been awarded $130,000 through Pennsylvania’s first-ever Agricultural Innovation Grant Program (article) 
• Co-founders Kyle Wyche, Elliott Bennet, and Dylan Lew were recognized in 2025 Forbes 30 under 30 (article)
• Co-founder Dylan Lew was recognized in RealLIST Innovators 2025: Meet 15 People in Pittsburgh pushing science and tech forward (article)
• Co-founder Kyle Wyche was featured on the cover of the 2025 Pitt Business magazine, Pittwire, and Ecotone's story was featured within (article)

Ecolectro (2017)

•  Ecolectro partnered with Re:Build Manufacturing to expand their clean hydrogen tech (article)

Elateq (2020)

• Elateq is expanding its operations and moving its headquarters to Northampton Industrial Park (article)

EMPEQ (2016)

• The Barcode is Dead: How EMPEQ is Revolutionizing Equipment Identification (article)
• EMPEQ joined Uptake Alliance’s 2024 Advanced Buildings cohort, collaborating with top startups and experts to drive innovation in the built environment (article)
• EMPEQ was featured in the 2024 SyracuseCoE Annual Technical Review for their innovative work in clean energy and environmental systems (article)

Enersion (2019)

• Featured in the 2025 Global Cleantech 100 for Energy & Power (article)

Finsulate (2021)

•  Furgo Searcher Successfully Completes 10 Years with Finsulate Antifouling (article)

florrent (2023)

• florrent received a $403,175 grant award from the Healey-Driscoll administration and MassTech's Center for Advanced Manufacturing (article)
• florrent has sucessfully closed an oversubscribed $9.5M Seed-2 funding round, led by MassVentures, with participation from Raven indigenous Capital Partners, MassMututal Catalyst Fund, Boston Impact Initiative, Sky Foundation, Elbezius, Maroon Venture Partners Fund, and a group of angel investors (article)
• Profile of florrent in UMass Amherst article (article)

Flux Marine (2019)

• Flux Marine has closed a $15 million funding round to expand production of its electric outboard motors and powertrain technology (Superb Crew article, Flux Marine website article)
• Flux Marine is part of a new wave of blue tech companies redefining what sustainable innovation looks like in Rhode Island, with help and backing from Cleantech Open Northeast / ACT, Cleantech Open, 11th Hour Racing, MassCEC, and Rhode Island Commerce. (founder interview)
• Flux Marine cofounder is recognized in Forbe's 30 Under 30 in Transportation & Aerospace (article)

Foogly (2023)

• Foogly has received an NSF (National Science Foundation) SBIR Phase I award to develop innovative soil and shoreline restoration products made from food and seashell waste (article)

Foregger Energy Solutions (2025)

• Foregger Energy Solutions has been named a 2025 Energy Innovation Winner by the Northeast Energy and Commerce Association (NECA) and will progress to NECA's annual Energy Innovation Forum at the end of the month (post)

Gamotech (2025)

• Gamotech was featured in a recent article by La Presse, which emphasizes their potential to "revolutionize the world of municipal works" (article)

GreenIRR (2023)

• Green IRR joined Newlab in Brooklyn, NY (post)
• Green IRR was featured in NYC EDC's Founder Fellowship press release alongside 75 companies (article & post)

Grain Ecosystem (2024)

• Grain Ecosystem Secures Strategic Investment to Accelerate Waste-to-Value Platform Growth (article)
• Grain Ecosystem partnered with Ag. Blending Co. to turn horse waste into biochar in Wellington, Fl -- a hub for word-class equestrian culture (video)

Haylon Technologies (2023)

• Raj Lulla, Namin Shah, and Dante Vaisbort of Haylon Technologies were recognized in 2025 Forbes 30 under 30 (article)

Harmony Desalting (2020)

• They launched 2 new pilots: (1) Searay (their first seawater desalting unit, cutting energy use by 30% vs. standard RO); and (2) Chimaera (their largest pilot yet, producing 200 m³/day and operating multiple modules in parallel). (article; Linkedin post)
• They secured a $200,00 grant from the Texas Water Development Board to expand agricultural water supplies with their batch desalting technology (article; Linkedin post) 

Heat Inverse (2018)

• They were selected as one of 25 innovators to pitch at Distributech 2025 as part of EPRI’s Incubatenergy Labs program (article)

Husk Power Systems (2008)

• Husk electrifies 200 new communities in 1 year, doubling its fleet of solar minigrids and cementing global leadership position (article)
• Husk Power and Acumen's Hardest-to-Reach initiative partner to tackle energy poverty in the DRC with solar minigrids (article)
• Accelerating Rural Electrification: Husk Power Systems (article)
• Husk Power was selected as part of the Top 10 Best Electric Utility Companies in USA 2025 (article)

HYDGEN (2025)

• HYDGEN closed their Pre-A series funding round of $5M including equity and debt, led by Transition Venture Capital (India) (article)

Incentivize EV (2023)

• The powerful EV Rebate Calculator developed by Incentivize has been acquired by Coltura (article)

InceptEV (2023)

• InceptEV is acquired by Motive to help customers accelerate electric vehicle (EV) fleet transitions (article)

Innovia GEO (2020)

• Innovia GEO has been selected for Cohort 2 of the AC:Studio accelerator (post)

Kara Water (2019)

• Kara Water raised over $1.6M on their StartEngine campaign for transforming air into ultra pure drinking water (product)

Kelvin (2012)

• Influencers in CRE technology 2025 (article)
• Featured in the 2025 Global Cleantech 100 for Waste and Recycling (article)

Magnomer (2018)

• Magnomer joined Cohort 6 in the 100+ Accelerator (post)

13 Mari (2021)

• TOKYO-Mitsui O.S.K. Lines, Ltd. (MOL) invested in 13 Mari, developer of ripple-shaped 'Flowsmart' Elements (article)
• Imabari Shipbuilding invested in 13 Mari Ltd. to advance its scale-shaped hull technology that improves fuel efficiency and cuts emissions, with Nippon Shyipyard supporting R&D and testing (article)

Matcha (2023)

• Matcha is partnering with Voltpost to bring their lampost EV charges to environmental justice communities across MA (article) 

Measured Air Performance (2021)

• Measured Air Performance was awarded funding in MassCEC's latest $6.4 million investment in climatetech companies and researchers (article)

Metalmark Innovations (2018) 

• Metalmark Innovations was a semi-finalist in the LA Resilient Rebuilding Cup challenge - helping to build a better, safer, cleaner Los Angeles after the January wildfires (article)

MicroEra Power Inc (2016)

• MicroEra Power joined the 2025 Third Derivative Cohort (article)
• MicroEra Power was selected as part of the Top 10 Best Electric Utility Companies in USA 2025 (article)
• MicroEra Power was selected for the Wells Fargo Innovation Incubator (IN2), a highly competitive program that bridges the transition of technologies from R&D to commercialization (article; article)
• MicroEra Power founder Ellie Rusling is named on Rochester Business Journal's 2025 Power List (article)

Moby (2022)

• Moby was featured in NYC EDC's Founder Fellowship press release alongside 75 companies (article & post)

Moduly (2021)

• Moduly was accepted into and graduated from the Joules Accelerator (website)

Muon Vision (2020)

• Muon Vision raised $2.5 million in seed round led by Azolla Ventures (website & post) 

Natel (2006)

• Natel is named by Time as one of the World's Top GreenTech Companies of 2025 (article).

Osmoses (2021)

• Osmoses was awarded a $200K Massachusetts Manufacturing Accelerate Program (MMAP) (article)
• Osmoses was awarded a $500k MassVentures grant, allowing them to grow and scale their molecular filters to unlock a low-carbon future powered by green molecules (article)

People's Energy Analytics (2023)

• Modern challenges facing electric vehicle adoption: A review of barriers to adoption, supply chain challenges, and equity (article)
• They were selected as one of 25 innovators to pitch at Distributech 2025 as part of EPRI’s Incubatenergy Labs program (article)

Planet Savers (2024 DAC Academy)

• Planet Savers wins first place in Startup Innovation Challenge at the Carbon Capture APAC Summit (post). 
• Planet Savers signs an MoU with the Australian Carbon Vault to deploy in Arckaringa Basin, South Australia (article).
• In the Bosch CarbonCapture Startup Challenge, Planet Savers was selected as the only startup from Asia out of 340 applicants (article).

PolyGone Systems (2025)

• PolyGone receives Emerging Tech award from R&D council of New Jersey (article)
• PolyGone receives a $1.25 million grant from the New Jersey Innovation Evergreen Fund (NJIEF) (article).

Prezerv Technologies (2021)

• Prezerv Technologies was selected to collaborate with the NYC Department of Environmental Protection (post)
• They were selected as one of 25 innovators to pitch at Distributech 2025 as part of EPRI’s Incubatenergy Labs program (article)
• Preserv Technologies was selected to be 1 of 5 members of the new Cox Cleantech Accelerator, a cohort of high-potential startups focused on improving efficiency and infrastructure in the Southeast through cleantech (article). 

Princeton NuEnergy (2023)

• Princeton NuEnergy receives NSF (National Science Foundation) SuperBoost Grant to accelerate direct recycling of lithium-ion batteries (article; article).
• Princeton NuEnergy is named by Time as one of the World's Top GreenTech Companies of 2025 (article).
• Princeton NuEnergy launched its flagship battery recycling facility in South Carolina, which is now fully commissioned and operational (article).

RenewCO2 (2020)

•  Renew CO2 has successfully raised $4 million in seed funding, marking a pivotal movement in their journey to transform carbon dioxide emissions into valuable chemicals and fuels (article; article).
• Renew CO2 has built the world's first Multi-Product Field Demonstrator for CO2 electrolysis with Volkswagen Group Innovation in Germany (article).

rStream (2021)

• rStream was awarded funding in MassCEC's latest $6.4 million investment in climatetech companies and researchers (article)
• rStream CEO and co-founder Ian Goodine was featured by Manufacturing USA as a "Modern Maker" for his innovative work in the recycling and waste industries using robotics and data science (article)
• rStream cofounders are recognized in Forbe's 30 Under 30 in Energy & Green Tech (article)

Scanifly (2019)

• Scanifly & Unirac Integrate Drone-based Site Surveys with Plan Sets, Saving Installers 2+ Hours per Project in Workflow Automation (article)
• Scanifly and Pegasus Integrate Drone-Based PV Design with Racking Layouts, Removing Rework and Accelerating Time to Install (article)
• Scanifly & K2 Quote Integrate Drone-Based PV Design with Racking & Bill of Materials, Eliminating Duplicate Work and Accelerating Time to Install (article)

Sensible Photonics (2022)

• Co-founder Paul Ohodnicki was recognized in RealLIST Innovators 2025: Meet 15 People in Pittsburgh pushing science and tech forward (article)

SeaH4 

• Co-founder Paul Ohodnicki was recognized in RealLIST Innovators 2025: Meet 15 People in Pittsburgh pushing science and tech forward (article)
• SeaH4 announced its first commercial pilot facility to scale its seaweed-based biofuel innovation, taking another big step toward decarbonizing shipping (article) 

Sealed (2013)

• Lauren Salz, CEO and Co-Founder at Sealed, was recognized as an all star alum in 2025 Forbes 30 under 30 (article)
• Founder & CEO, Lauren Salz, was featured in HackSummit’s “70 U.S. Women Founders in Climate to Know” (article)

Shred Electric (2023)

• Shred Electric supports aquaculture and marine electrification efforts in Maine by designing a solar-powered, electric boat + a mobile cold storage system (The ShredCube) that replaces diesel equipment on the working waterfront (article, article)

Solstice (2015)

• Solstice Launches Program to Support Communities with Renewable Energy Funding (article)

SparkCharge (2016)

• SparkCharge was awarded funding in MassCEC's latest $6.4 million investment in climatetech companies and researchers (article)
• How Josh Aviv Took His EV Startup From His Dorm Room To Shark Tank (article)
• SparkCharge Chosen as EV Charging Partner for the 2025 Masters Tournament (article)
• SparkCharge has raised $30.5 million in Series A funding to expand its innovative mobile EV charging network (article; video)
• SparkCharge has partnered with Synop to optimize and expand its network through real-time fleet and energy management (article)
• SparkCharge powered the 2025 U.S. Open with mobile EV charging, showcasing how flexible EV infrastructure can redefine how energy is delivered at major events (article)
• SparkCharge is moving beyond physical infrastructure with their new AI system: SparkAI, which will grow their customer base and enable more companies to electrify fleets in rural and off-grid areas (article) 

SuryaTech (2024)

• SuryaTech won first place at the FORGE "Scale Up Your Startup" pitch competition (post)
• They were selected as one of 25 innovators to pitch at Distributech 2025 as part of EPRI’s Incubatenergy Labs program (article)

Thiozen (2020)

• Thiozen was awarded funding from the U.S. Department of Energy as part of a $14 million initiative to advance technologies that convert carbon emissions into valuable products (article)

Turnover Labs (2024)

• Pulse 2.0 Interviewed Turnover Labs Founder & CEO Marissa Beaty About the Climate Tech Company (article)
• Turnover Labs won 20k at Mass-Challenge Switzerland's 10th annual awards (article)

Verde Technologies (2022)

• Burlington Company Launches New, Efficient, Solar Panels (article)
• Co-founder Nicole Evans was recognized as a Vermont Rising Star (40 under 40) (article; article) 
• Verde recently announced its pilot manufacturing line in Waterbury, VT is officially up and running (article)
• Verde Technologies is a recipient of the 2026 Leahy Grant through the University of Vermont Leahy Institute for Rural Partnerships (article).

Voltpost (2021) 

• Volpost retrofits lamp posts into modular EV chargers for cost-effective, scalable curbside charging in San Francisco (article)
• Biden Harris Administration Announces New Funding to Connect and Scale the Electric Transportation Ecosystem
• San Francisco picks first neighborhoods for curbside EV charging pilot program (article)
• Voltpost was named in 5 Environmental Startups Leading the Way in 2025 (article)
• Ev Charging Buildout in New York Will Proceed Despite Trump's Lack of Support (article)
• Voltpost recently signed a business letter in support of the EPA’s proposed power plant rules (article)
• Voltpost Co-founder & CEO, Luke Mairo was recognized in 2025 Forbes 30 under 30 (article)
• Changing the Future of Urban Mobility: A Recap of Voltpost's Vision and Progress (article)
• Luke Mairo was featured in Forbes, "Fusion Fund Raises $190 million to Back The Next Tech Giant" (article)
• Voltpost to bring their lampost EV charges to environmental justice communities across MA (article) 
• Luke Mairo recently joined the MIT Mobility Initiative to share how Voltpost is scaling climate hardware by retrofitting lampposts into EV chargers (article)
• Voltpost was featured in Fast Company’s World-Changing Ideas list for its innovative streetlight EV chargers (article)
• Voltpost is retrofitting existing streetlights into connected electric vehicle chargers to expand accessible, curbside charging infrastructure (article)
• Voltpost was a semi-finalist in the LA Resilient Rebuilding Cup challenge - helping to build a better, safer, cleaner Los Angeles after the January wildfires (article)
• Voltpost launches 'Air,' their electric lampost charger (article)

Wavon Ceramics (2025) 

• Founder Bashu Aman of Wavon ceramics was featured by Carnegie Mellon in a CMU Scott Institute for Energy Innovation article (article)

Zero Homes (2021) 

• Zero Homes secured an investment from Exelon to scale their home electrification (article)
• Zero Homes expanded their contract with ComEd and the City of Chicago to deliver no-cost home upgrades and  electrify hundreds of homes in the city’s LMI communities (article, Linkedin post)