Sector portfolio · VC firm · United States

Techstars' Cleantech portfolio

Techstars has backed 37 Cleantech startups in rounds we track, $598M between them, shown by the stage each has reached. The best-funded is Bevi.

37startups backed
5stages
$598Mraised between them
Pre-seed and seedbiggest stage

Techstars's whole portfolioTechstars's profile

Pre-seed and seed

19

Stage not reported

7

Series A

6

Series B

3

Growth

2

Segment by segment

Pre-seed and seed

19 startups · $40M raised

  1. BoldrBoldr Group Inc.United Kingdom$8.1M
  2. Rana EnergyRana Energy provides sustainable innovative & customer-centric energy solutions for a greener Africa.Nigeria$5.5M
  3. CarboCarbo is a French sustainability and environmental consulting firm focused on helping organizations measure, manage, and reduce thFrance$5.5M
  4. CariqaCariqa is a technology company based in Berlin, founded in 2022, that specializes in electric vehicle (EV) charging solutions.Germany$4.7M
  5. Kumulus WaterKumulus Water is a French-Tunisian GreenTech startup founded in 2021, focused on providing sustainable access to clean drinking water.France$3.4M
  6. HyWattsPower‐Plant‐in‐a‐Box for EV, Data Centers | Green Energy EverywhereUnited States$2.9M
  7. Hyperion Global EnergyHyperion Global Energy is a Canadian environmental technology company based in Ottawa, Ontario.Canada$2.0M
  8. TetherTether Holdings operates a platform to store, send, and receive local currency person to person globally.Sweden$1.5M

Stage not reported

7 startups · $251M raised

  1. LevelTen EnergyLevelTen Energy is a leading provider of renewable transaction infrastructure, based in Seattle, Washington.United States$129M
  2. TwelveTwelve offers smart payment solutions such as software modules, links, ordering solutions, internet solutions, communication & sponsorship.United States$117M
  3. FFuelSaveFuelSave is a disruptive energy efficiency enhancement company that provides innovative solutions.Germany$1.6M
  4. SeaboundSeabound is a carbon capture technology company.United Kingdom$1.5M
  5. Resilient Power SystemsResilient Power Systems provides power converters such as DCFC supercharging stations in a box and renewable H2 energy power converters.United States$1.5M
  6. Eolic WallEolic Wall is a deep tech, climate tech startup backed by Techstars and Third Derivative, aiming to decentralize access to wind enUnited States$320K
  7. VoltaageVoltaage is a French-Italian deep-tech startup founded in 2021, with headquarters in Paris and Turin, and an office in Austin, Texas.France$95K

Series A

6 startups · $48M raised

  1. WattBuyWattBuy is a clean energy platform that empowers enterprises to help their customers choose affordable, clean energy options for their home.United States$12M
  2. HammerheadHammerhead is a leader in cycling technology, founded in 2013 by Piet Morgan and Laurence Wattrus.United States$11M
  3. Conservation LabsConservation Labs is a Pittsburgh-based company that specializes in AI and smart water technology.United States$9.2M
  4. TTenzoUnited Kingdom$6.8M
  5. RatedPowerRatedPower software to design & optimize utility-scale solar plants.Spain$6.0M
  6. WATTMOREClean energy company building control software for energy systems using a combination of batteries, solar, and grid powerUnited States$2.4M

Series B

3 startups · $119M raised

  1. MAXNigeria$76M
  2. Mast ReforestationMast Reforestation is a leading company in North America focused on post-wildfire reforestation and carbon removal.United States$25M
  3. EcoGEcoG is a global B2B technology and IP company based in Munich, Germany, specializing in solutions for electric vehicle (EV) fast-Germany$19M

Growth

2 startups · $140M raised

  1. SenseSense specializes in tracking devices and home automation solutions for its customers.United States$108M
  2. SkySpecsSkySpecs is a leader in renewable energy asset management, focusing on the wind energy sector.United States$32M

How this map is made. Every startup here works in Cleantech and has raised money in a round we track that names Techstars as an investor. Each sits under the stage of its latest round. Rebuilt nightly; updated 15 November 2026.

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