Venus Aerospace announced the closing of its Series B financing round, which raised $91 million to evolve its rotating detonation rocket engine (RDRE) from functioning prototype to a scalable propulsion system with multiple applications. Venus completed a demonstration launch with its test vehicle in May 2025.

The newest financing round was anchored by Houston-based venture capital firm Mercury Fund, with contributions from a handful of other investors, including Lockheed Martin Ventures, MESH, PEAK6, Draper
Associates, Starboard Star Venture Capital, and Green Sands Equity.