Investor actively backing innovative startups and growth-stage companies across various industries and funding rounds.
| Company Name | Founded | Funding Stage | Amount | City |
|---|---|---|---|---|
| Switched Source | 2026 | Venture - Series Unknown | $2.6M | Chicago |
| YouSolar | 2026 | Equity Crowdfunding | Undisclosed | Santa Clara |
| Clean Valley Bio-filtration Technologies | 2026 | Debt Financing | $4.0M | Dartmouth |
| Scalvy | 2026 | Series A | $13.9M | Austin |
| MicroEra Power | 2026 | Non Equity Assistance | $25K | Rochester |
| RenewCO2 | 2025 | Seed | $4.2M | Cranford |
| Radical Plastics | 2025 | Venture - Series Unknown | $1.0M | Beverly |
| GRAIN Ecosystem | 2025 | Seed | $880K | Quincy |
| Muon Vision | 2025 | Seed | $2.5M | Cambridge |
| Enzinc | 2024 | Series A | $8.3M | Richmond |
| # | Company | Stage | Amount | Location |
|---|---|---|---|---|
| 1 | Switched Source | Venture - Series Unknown | $2.6M | Chicago, United States |
| 2 | YouSolar | Equity Crowdfunding | Undisclosed | Santa Clara, United States |
| 3 | Clean Valley Bio-filtration Technologies | Debt Financing | $4.0M | Dartmouth, Canada |
| 4 | Scalvy | Series A | $13.9M | Austin, United States |
| 5 | MicroEra Power | Non Equity Assistance | $25K | Rochester, United States |
| 6 | RenewCO2 | Seed | $4.2M | Cranford, United States |
| 7 | Radical Plastics | Venture - Series Unknown | $1.0M | Beverly, United States |
| 8 | GRAIN Ecosystem | Seed | $880K | Quincy, United States |
| 9 | Muon Vision | Seed | $2.5M | Cambridge, United States |
| 10 | Enzinc | Series A | $8.3M | Richmond, United States |
Switched Source is a manufacturing company that develops medium-voltage devices to enhance utility operations through automation.
YouSolar is an energy solutions company that offers rooftop solar+battery systems.
Clean Valley CIC is a group of entrepreneurs, engineers and environmental scientists with a nature-inspired ideas for Canadian Innovation.
Scalvy is a modular power electronics company delivering ultra-high, grid-interactive power for data centers, energy storage, and EVs.
Resilient, efficient Thermal Energy Storage for C&I buildings
RenewCO2 is a research company that develops processes for converting CO2 into polymers and chemicals.
Radical Plastics is a radical solution to plastic pollution.
GRAIN Ecosystem is a start-up that addresses global warming and accelerates decarbonization.
Muon Vision specializes in nuclear imaging sensors, IoT, slope stability, and data mining services.
Enzinc is an advanced battery developer that offers rechargeable zinc-air batteries.
Renegade Plastics offers an alternative to PVC-coated fabrics for a circular plastics economy in industry and agriculture.
We design, develop and deploy hydrogen- powered uncrewed surface vessels (H-USVs)
Tidal Metals produces decarbonized magnesium metal from seawater and desalination waste to reduce salinity.
OpConnect specializes in EV charging solutions, dedicated to reducing greenhouse gas emissions through transportation electrification.
Halo Industries develops new laser-based hardware solutions for the manufacturing of substances.
Camus provides a grid orchestration platform to help electric utilities operate and build a reliable, affordable, and zero-carbon grid.
ecoSPEARS is a cleantech remediation company that is ushering in the carbonless future of environmental cleanup.
Relyion Energy Renewable Energy Equipment Manufacturing firm that makes sustainable Li-ion batteries.
Pyran sells renewable chemicals to make environmentally-friendly paint, coatings, adhesives, polyurethanes, degradable films, and plastics.
We build plug & play e-bike tech
Ekostinger provides an advanced trailer aerodynamics solution for the trucking industry.
re:Charge is powering the global shift towards a sustainable future through our innovative charging-as-a-service business model.
Acoustic Wells offers industrial IoT solutions to maximize oil field efficiency and reduce environmental impact.
Skycool Systems is improving the efficiency of all cooling systems by harnessing an untapped renewable resource: the sky.
Onvector develops non-chemical water treatment technologies that utilizes plasma.
Cleantech Open has invested in 147 companies tracked in our database. The portfolio spans multiple industries and funding stages, from seed-stage startups to late-stage companies.
Cleantech Open's top investment sectors include Renewable Energy, Energy, Transportation, Manufacturing, CleanTech. The firm invests across 62 different industry categories.
Among tracked funding rounds, Halo Industries received $80.0M in a Series B round. Cleantech Open's total known invested capital is $435.1M.
Cleantech Open's average investment size is $4.4M across its portfolio of 147 companies.
Recent Cleantech Open portfolio additions include Switched Source, YouSolar, Clean Valley Bio-filtration Technologies, Scalvy, MicroEra Power. These companies were founded in 2020 or later.
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