French launch provider Sirius Space Services has acquired Enerflux, an automotive equipment manufacturer, marking its third such purchase in just over a year.
The deal follows the company’s acquisitions of the SERM machining group in Coudray-Montceaux, Essonne, in June 2025, and industrial firm AMM-42 in March 2026. SERM, now operating as SERM by Sirius, focuses on advanced metal manufacturing for components like combustion chambers and turbopumps. The AMM-42 acquisition, involving a 35-person workforce previously under ACI Group, supports in-house production ahead of Sirius’s inaugural flight.
Enerflux bolsters these vertical integration efforts as Sirius readies its SIRIUS 1B demonstrator for a ballistic test flight scheduled in 2027. That suborbital mission will validate manufacturing processes for the SIRIUS launcher family, including critical STAR 1 engine parts produced via metal additive manufacturing.
The acquisitions come with partnerships, such as one with Fives Group’s AddUp subsidiary, enhancing Sirius’s capacity for precision components essential to its New Space ambitions.