Headquartered in Gothenburg, Sweden, Heart Aerospace maintains a research and development facility in Los Angeles, California, United States.

[2] Heart Aerospace is developing the ES-30, a 30-seat hybrid-electric powered regional airliner, designed for enhanced sustainability and efficiency on short-haul routes.

The X2 will incorporate design refinements based on the X1's operational experience and will feature the company’s hybrid propulsion system, which is slated for a hybrid-electric flight demonstration in 2026.

Returning investors included Air Canada, Breakthrough Energy Ventures, the European Innovation Council Fund, EQT Ventures, Lowercarbon Capital, Norrsken VC, United Airlines, and Y Combinator.

[11][12] In May 2024, Heart Aerospace announced the establishment of a new research and development hub in the United States.