Breakthrough Energy Ventures
Venture capital
Portfolio collected from the firm’s website, last checked Jul 26, 2026.Raises and exits come from each company’s own SEC and company records.
51Deep-tech portfolio43 active
6Portfolio exitsAcquired or listed
3Raises, 12 monthsLatest: ArkeaBio
65Co-investorsShare a portfolio company
Portfolio companies’ first raises and first grants, by year
First raisesFirst federal grants
The year each portfolio company first filed a Form D, and first won a federal grant. These describe the companies, not when this investor joined them.
Portfolio · 51 companies
| Company | Sector | Status | Latest raise | Raised |
|---|---|---|---|---|
| ArkeaBio | Agritech | Active | Oct 9, 2026 | $22.0M |
| KoBold Metals | Software | Active | Jan 2, 2026 | $1.1B |
| Airloom Energy | Clean tech | Active | Oct 10, 2025 | $15.5M |
| Sustaera | Clean tech | Active | Dec 6, 2024 | $5.7M |
| Koloma | Energy | Active | Oct 15, 2024 | $394.5M |
| Graphyte | Clean tech | Active | Sep 4, 2024 | $37.8M |
| CarbonBuilt | Clean tech | Active | Aug 7, 2024 | $10.0M |
| LanzaJet | Clean tech | Active | Mar 15, 2024 | $30.0M |
| Blue Frontier | Clean tech | Active | Jan 5, 2024 | $16.9M |
| Quaise Energy | Energy | Active | Dec 12, 2023 | $71.1M |
| Electric Hydrogen | Clean tech | Active | Oct 23, 2023 | $544.6M |
| Redwood Materials | Materials | Active | Dec 29, 2022 | $1.0B |
| Xcimer Energy | Energy | Active | Nov 1, 2022 | $1.2M |
| ZeroAvia | Space | Active | Oct 11, 2022 | $151.0M |
| Form Energy | Energy | Active | Oct 4, 2022 | $592.0M |
| Commonwealth Fusion Systems | Energy | Active | Dec 2, 2021 | $2.0B |
| Impossible Foods | Agritech | Active | Nov 23, 2021 | $1.9B |
| Universal Hydrogen | Space | Active | Nov 2, 2021 | $85.0M |
| NotCo | Software | Active | Aug 4, 2021 | $305.6M |
| Turntide Technologies | Energy | Active | Mar 9, 2021 | $131.3M |
| Quidnet Energy | Energy | Active | Jun 5, 2020 | $18.0M |
| CarbonCure Technologies | Clean tech | Active | May 16, 2016 | $2.2M |
| Helion Energy | Energy | Active | Jul 6, 2015 | $12.1M |
| Twelve | Clean tech | Active | Apr 28, 2015 | $70.7M |
| 44.01 | Clean tech | Active | — | — |
| Aeroseal | Clean tech | Active | — | — |
| Aetherflux | Energy | Active | — | — |
| Alpine Bio | Biotech | Active | — | — |
| Barocal | Materials | Active | — | — |
| Bloom Biorenewables | Clean tech | Active | — | — |
| Boom Supersonic | Space | Active | — | — |
| Boston Metal | Materials | Active | — | — |
| Dioxycle | Clean tech | Active | — | — |
| Enko | Agritech | Active | — | — |
| Gradient Comfort | Clean tech | Active | — | — |
| Heirloom Carbon | Clean tech | Active | — | — |
| Heron Power | Energy | Active | — | — |
| LanzaTech | Clean tech | Active | — | — |
| Mantle8 | Energy | Active | — | — |
| Our Next Energy | Energy | Active | — | — |
| Rumin8 | Agritech | Active | — | — |
| Solidia Technologies | Materials | Active | — | — |
| Terra CO2 Technologies | Materials | Active | — | — |
| Grail | Medtech | Public | Nov 7, 2025 | $1.7B |
| Genomatica | Biotech | Acquired | Aug 10, 2021 | $172.2M |
| Larimar Therapeutics | Biotech | Public | Jun 10, 2020 | $201.0M |
| IonQ | Quantum | Public | Jul 27, 2017 | $14.0M |
| Sapphire Energy | Clean tech | Closed | Dec 15, 2015 | $92.0M |
| Northvolt | Energy | Closed | — | — |
| Pachama | Clean tech | Acquired | — | — |
| QuantumScape | Energy | Public | — | — |
Peer ranks
Portfolio size#7
Portfolio exits#31
Raises, 12 months#5
Co-investors#16
Co-investors
- AmazonVenture capital5 shared
- Y CombinatorVenture capital5 shared
- Broadview VenturesVenture capital4 shared
- Khosla VenturesVenture capital4 shared
- MicrosoftVenture capital4 shared
- Prelude VenturesVenture capital4 shared
- Alaska AirlinesVenture capital3 shared
- American AirlinesVenture capital3 shared
- Delta Air LinesVenture capital3 shared
- Prime Movers LabVenture capital3 shared
Sectors
- Clean tech18
- Energy14
- Materials5
- Agritech4
- Space3
- Biotech3
- Software2
- Medtech1
- Quantum1
Portfolios are collected from investors’ own websites and matched to tracked deep-tech companies by name; duplicate listings of the same firm are merged. Exits and raises come from each company’s own record: Form D through the latest filing.