Startup · United States
Heart Aerospace
HQ Torrance, United StatesFounded 2019
Developer of hybrid-electric regional airliners. Founded in Sweden and a Y Combinator W19 company, it moved its headquarters to Torrance, California in 2025. Its X1 demonstrator, the largest electric aircraft to have flown, made its first flight in August 2026; the 36-seat ES-36 is targeted for entry into service in 2031.
Products2
Heart X1
Full-scale battery-electric regional airliner demonstrator.
- Unveiled
- Sep 2024
- First flight
- Aug 2026
Newest unveiled first. Open a product for its milestone timeline, components and sources.
Funding8 rounds · ~$158M
- Disclosed
- ~$158M
- Latest
- $4.1MGrant · Sep 9, 2024
| Announced | Stage | Amount | Valuation | Lead investors | Other investors | Confidence |
|---|---|---|---|---|---|---|
| Sep 9, 2024 | Grant | $4.1M | — | — | Federal Aviation Administration | Confirmed |
| Feb 1, 2024 | Series B | $107M | — | — | Air Canada, Breakthrough Energy Ventures, EIC Fund, EQT Ventures, Lowercarbon Capital, Norrsken VC, Sagitta Ventures, United Airlines, Y Combinator | Confirmed |
| Jun 1, 2023 | Grant | Undisclosed | — | — | — | Speculative |
| Nov 30, 2022 | Grant | Undisclosed | — | — | EIC Fund | Speculative |
| Sep 15, 2022 | Undisclosed | ~$10.0M | — | — | — | Speculative |
| Jul 13, 2021 | Series A | $35.0M | — | — | Breakthrough Energy Ventures, EQT Ventures, Lowercarbon Capital, Mesa Air Group, United Airlines | Confirmed |
| 2019 | Pre-Seed | ~$130K | — | — | Y Combinator | Speculative |
| 2019 | Seed | ~$2.1M | — | — | EQT Ventures, Norrsken VC | Reported |
- $4.1MSep 9, 2024
- Series BWith Air Canada, Breakthrough Energy Ventures, EIC Fund, EQT Ventures, Lowercarbon Capital, Norrsken VC, Sagitta Ventures, United Airlines, Y CombinatorConfirmed$107MFeb 1, 2024
- GrantSpeculativeUndisclosedJun 1, 2023
- UndisclosedNov 30, 2022
- UndisclosedSpeculative~$10.0MSep 15, 2022
- Series AWith Breakthrough Energy Ventures, EQT Ventures, Lowercarbon Capital, Mesa Air Group, United AirlinesConfirmed$35.0MJul 13, 2021
- ~$130K2019
- SeedWith EQT Ventures, Norrsken VC~$2.1M2019
Totals add known amounts using recorded USD conversions where available; other currencies are shown separately. A ~ marks an estimated amount.
People3
Sources13
Products2
- 1CompanyES-36 | Heart Aerospace
Heart Aerospace · Supports System
“A clean-sheet, hybrid-electric regional aircraft designed to reset the economics of short-haul flying.”
- 2
Heart Aerospace · Supports System
“A full-scale, all-electric regional airliner demonstrator.”
Funding10
- 3
Seedtable · Oct 6, 2026 · Supports Funding round
“# Heart Aerospace Raises 10.0M USD in Unknown Funding”
- 4
Crunchbase · Oct 6, 2026 · Supports Funding round
“Funding Type Pre-Seed”
- 5
Seedtable · Oct 6, 2026 · Supports Funding round
“130K USD”
- 6
Tracxn · Oct 6, 2026 · Supports Funding round
“Europa, located in Belgium, made their first investment in Heart Aerospace on Jun 01, 2023 in its Grant (prize money) round.”
- 7CompanyHeart Aerospace Awarded $4.1 Million in FAA FAST Grant to Advance Electric Aviation in the U.S.
Heart Aerospace · Sep 9, 2024 · Supports Funding round · amount
“has been selected for a $4.1 million grant under the Federal Aviation Administration’s (FAA) Fuelling Aviation’s Sustainable Transition (FAST) program”
- 8
FlightGlobal · Feb 1, 2024 · Supports Funding round
“has completed its Series B funding round, raising $107 million from new and existing investors, including an additional $5 million from Air Canada.”
- 9
Heart Aerospace · Feb 1, 2024 · Supports Funding round · amount
“announced it raised a total of $107 million in Series B funding”
- 10CompanyHeart Aerospace is one step closer to building an electric plane, closing $35M Series A round
Heart Aerospace AB (Cision) · Jul 13, 2021 · Supports Funding round, Funding round · amount
“closed its seed round in 2019 with lead investments from EQT Ventures and Norrsken Foundation”
- 11NewsHeart Aerospace raises $35M Series A, lands order with United and Mesa Airlines for 200 aircraft
TechCrunch · Jul 13, 2021 · Supports Funding round
“was announced together with a $35 million Series A funding round.”
- 12
Nordic9 · May 31, 2019 · Supports Funding round · amount
“completed a SEK 20M ($2.1M) capital investment round”
People1
- 13
Heart Aerospace · Supports Organization, Organization · founded year, Organization · hq city, Role
“Relocated Heart’s corporate headquarters to Los Angeles”
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