Molten Ventures plc has committed €30 million to Isar Aerospace as part of the launch company’s €270 million Series D round.
The London-listed investor described itself as a strategic backer and said the capital will support Isar’s scaling phase and the ramp-up of serial production for Spectrum, its orbital launch vehicle. The disclosure also confirms Molten’s existing exposure to the company, with that holding valued at £40 million at 31 March 2026. No valuation, ownership percentage or detailed use-of-proceeds split was disclosed.
The deal extends venture support for European launch infrastructure at a time when operators are moving from development work into industrialised production. For Isar, execution on Spectrum now matters as much as financing.