Breakthrough Energy key facts
- Breakthrough Energy is a other based in Kirkland, Washington with 104 tracked portfolio companies.
- Notable positions include Stoke Space, Redwood Materials, KoBold Metals.
- PrivateMarketView records 13 deal participations by Breakthrough Energy.
- Breakthrough Energy’s most recent recorded investment was in Apr 2026, one of 2 in the last 12 months and 6 over two years.
- Breakthrough Energy has 7 funds on record, raising $3.1B across the 5 that report a size.
- The team roster lists 2 people.
About Breakthrough Energy
Breakthrough Energy is a foundation based in Kirkland, Washington. Established in 2016, it is an impact investment firm based in Kirkland, Washington. The foundation seeks to make minority investments in seed-stage, early-stage, and later-stage companies operating in the environmental services and cleantech sectors. The assets of the foundation are managed by the executive management team.
Investment activity
Breakthrough Energy joined 4 recorded rounds in the last two years (2 in the last 12 months), down from 5 in the two years before. By year: 2 in 2026, 2 in 2025 and 2 in 2024. Across all 13 recorded rounds, 6 were later-stage, 5 were early-stage and 2 were seed. Breakthrough Energy is recorded as lead on 2 of them. Breakthrough Energy most often invests alongside Andreessen Horowitz (5 shared rounds), Khosla Ventures (4 shared rounds) and Baruch Future Ventures (3 shared rounds). Most recently: Mariana Minerals (Series A, Apr 2026) and Stoke Space (Series D, Feb 2026).
Breakthrough Energy portfolio at a glance
104 portfolio companies are on record for Breakthrough Energy, including Stoke Space, Redwood Materials and KoBold Metals.
69 of the 104 carry a recorded valuation and 2 have recorded secondary-market trades, the names a secondary buyer or seller can price.
Breakthrough Energy funds
7 funds are on record for Breakthrough Energy, totalling $3.1 billion across the 5 that report a size. The most recent is Breakthrough Energy Ventures Select Fund II, L.P. (2026 vintage), $600 million.
Breakthrough Energy team
2 people are on record at Breakthrough Energy: 1 partner and 1 principal. Senior names include Christina Karapataki (Partner) and Mark Hartney (Principal). 2 of them have a verified direct contact on file.
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- ·The top 10 names in the book — of 104 recorded positions
- ·The 10 latest deals — of 13 rounds
- ·Watchlist + alerts for Breakthrough Energy's activity
Portfolio
104 companies · priced for members| Company | Industry | Valuation | First invested | Role |
|---|---|---|---|---|
| Stoke Space | E-Commerce | ▮ | ▮ | ▮ |
| Redwood Materials | Other Materials | ▮ | ▮ | ▮ |
| KoBold Metals | — | ▮ | ▮ | ▮ |
+ 101 more companies · all 104, priced and dated or a free account shows the top 10 names — no card Membership and data by Private Market View | ||||
Breakthrough Energy recent deals
13 recordedMembership and data by Private Market View
Funds
6 of 7 recorded- Explorer 1 Fund (Explorer 1 Fund)—
- Breakthrough Energy Ventures Select Fund II, L.P.2026$600.0M
- Breakthrough Energy Ventures Select Fund I, L.P.2023$555.0M
- Breakthrough Energy Ventures III, L.P.2023$839.4M
- Breakthrough Energy Ventures II, L.P.2020—
- Breakthrough Energy Ventures Europe SCSp2019$50.0M
$3.1B raised across the 5 funds that report a size
All 7 funds →Partners, principals, and the people who answer a pitch. Pro members reveal contacts with credits.
Frequently asked about Breakthrough Energy
- What companies does Breakthrough Energy invest in?
- Breakthrough Energy has 104 recorded portfolio companies, including Stoke Space, Redwood Materials, KoBold Metals.
- What is Breakthrough Energy's AUM?
- Breakthrough Energy manages approximately $1K in assets.
- Is Breakthrough Energy actively investing?
- Breakthrough Energy's most recent recorded investment was in Apr 2026, with 2 investments in the last 12 months.