Sirius Space Services

Sirius Space Services is a French launch service provider focused on the design and manufacture of reusable small-lift launch vehicles. The company occupies a position in the upstream segment of the aerospace value chain, aiming to provide dedicated transport for small satellites into Low Earth Orbit. Its technical approach relies on liquid oxygen and liquid biomethane propulsion, utilising 3D-printing technologies to streamline the production of its engine components. The organisation's primary development programme is the Sirius family of launchers, comprising the Sirius 1, Sirius 13, and Sirius 15 models. These vehicles are designed with a modular architecture, where the larger configurations utilise clusters of the first-stage engines used in the baseline model. The company has secured support from the French space agency, CNES, and intends to operate from the Guiana Space Centre to serve commercial and institutional satellite operators. Prospective partners should verify the current development status of the Star-1 engine and the specific timeline for the inaugural suborbital or orbital flight tests. As the venture is in the capital-intensive hardware development phase, buyers should assess the progress of their manufacturing facilities in France and the status of regulatory approvals for launch operations from European-managed spaceports.