Sector portfolio · VC firm · United States
Breakthrough Energy's Cleantech portfolio
Breakthrough Energy has backed 23 Cleantech startups in rounds we track, $5.1B between them, shown by the stage each has reached. The best-funded is Commonwealth Fusion Systems.
Breakthrough Energy's whole portfolioBreakthrough Energy's profile
Funding by segment
- Stage not reported$643M10
- Series A$995M4
- Series B$250M3
- Pre-seed and seed$10M2
- Series C and later$1.2B2
- Growth$2.0B2
Where they are based
- United States16$4.9B
- Canada2$128M
- Nigeria2$85M
- United Kingdom1$28M
- Sweden1$13M
- Germany1$3.7M
United States
Canada
Nigeria
United Kingdom
Sweden
GermanyFounded
4 without a founding year on record.
Total raised
- Under $1M0
- $1M to $10M4
- $10M to $50M5
- $50M to $250M11
- $250M to $1B1
- $1B and over2
Each dot is a startup: the year it was founded across, the total it has raised up (each line is ten times the one below). Pick a segment to pick it out.
19 of 23 startups shown; the rest have no founding year or amount on record.
- 1 to 2
- 3 to 7
- 8 to 24
- 25 to 99
- 100 and more
- United States16
- Canada2
- Nigeria2
- United Kingdom1
- Sweden1
- Germany1
Startups by country, 6 countries in all.
Segment by segment
Stage not reported
10 startups · $643M raised
- HHeirloomUnited States$203M
CarbonCure TechnologiesCarbonCure Technologies Inc.Canada$88M
Type One EnergyStellarator technology to transform energy markets with fusion power.United States$88M
Turntide TechnologiesTurntide Technologies develops an electric motor system designed to drive down energy consumption.United States$80M
LanzaJetLanzaJet is a private company founded in 2020 that focuses on sustainable fuels technology.United States$67M
Deep SkyDeep Sky is a developer of a CO2 removal infrastructure designed to reduce the carbon footprint.Canada$40M
CubicPVCubicPV is a solar manufacturing company that produces wafers and tandem modules.United States$33M
Mission ZeroMission Zero helps real estate facilities and their portfolio companies improve their ESG performance by eliminating waste from caUnited Kingdom$28M
Series A
4 startups · $995M raised
Pacific FusionPacific Fusion was founded in 2023 to deliver commercial fusion energy to power cities, businesses and homes.United States$900M
Dandelion EnergyDandelion Energy is a leading residential geothermal company based in Mount Kisco, New York.United States$56M
GraphyteCombining photosynthesis with practical engineering, Graphyte's Carbon Casting technology provides an immediate pathway for billioUnited States$30M
ArnergyArnergy is a Nigerian cleantech company founded in 2013, headquartered in Ilupeju, Lagos.Nigeria$9.0M
Series B
3 startups · $250M raised
Pre-seed and seed
2 startups · $10M raised
Kodama SystemsRestoring forests for future generationsUnited States$7.0M
MacroCycle TechnologiesMacroCycle Technologies is a cleantech company based in Cambridge, Massachusetts, founded in 2023.United States$3.0M
Series C and later
2 startups · $1.2B raised
Fervo EnergyFervo Energy develops clean energy technology to generate carbon-free energy from geothermal systems.United States$1.1B
Zap EnergyZap Energy is an American company founded in 2017, headquartered in Everett, Washington, with research facilities in Mukilteo and Seattle.United States$130M
Growth
2 startups · $2.0B raised
- CFCommonwealth Fusion SystemsUnited States$1.9B
Terabase EnergyTerabase Energy is a solar technology company based in Berkeley, California, founded in 2019.United States$130M
How this map is made. Every startup here works in Cleantech and has raised money in a round we track that names Breakthrough Energy as an investor. Each sits under the stage of its latest round. Rebuilt nightly; updated 15 November 2026.
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