Isar Aerospace’s Spectrum lifts off on its first flight March 30, 2025. Credit: Isar Aerospace/Brady Kenniston/NASASpaceFlight.com

HOUSTON — European launch company Isar Aerospace has raised 270 million euros ($312 million) to support its global expansion as it prepares for its next launch attempt.

The Munich-based company announced June 9 it closed a Series D round featuring new investors Island Green Capital and Molten Ventures. Several existing investors, including HV Capital, Lakestar and UVC Partners, with co-investor KfW Capital, also participated in the round.

Isar said the funding will enable the company to expand production of its Spectrum small launch vehicle at a factory near Munich, with a goal of producing 40 vehicles a year. The company currently has 450 to 500 people working there and at its launch site, Josef Wiedemann, sales director at Isar Aerospace, said during a May 27 panel discussion at the SmallSat Europe conference.

“One rocket is not enough. You need it industrialized,” he said, particularly to meet growing defense demands for launch. “You need it in serial production.”