Sizing up the 5 companies selected for Europe’s launcher challenge

European Space officials have cited the rule of geographic return as a reason for delays and cost overruns on ESA projects, including the Ariane 6, which debuted in July 2024, several years behind schedule. Essentially, the policy compels ESA to choose contractors in countries providing funding to each program, regardless of whether they offer the most reliable or cost-effective solution.

With the European Launcher Challenge, ESA is upending this policy by first selecting the launch contractors, then going to their home governments to secure funding for the program.

Two of the challengers selected by ESA are from Germany. Isar Aerospace, headquartered in Munich, is developing a small two-stage orbital launch vehicle named Spectrum. Just to the northwest of Munich, Rocket Factory Augsburg is developing a rocket called RFA One with similar capabilities to Spectrum.

MaiaSpace is owned by ArianeGroup, the parent company of Arianespace, based in France. Spanish company PLD Space is developing a launch vehicle called the Miura 5 and in 2023 launched its first liquid-fueled rocket into the upper atmosphere on a suborbital test flight. Orbex, headquartered in the United Kingdom, is working on a rocket named Prime. All five companies’ rockets are currently gearing their efforts toward the small satellite launch market.

The European launcher challenge will include two components, the first of which will be for launch services for ESA missions slated for launch from 2026 through 2030. The second part will be a contract to demonstrate a launch service capacity upgrade, including at least one flight demonstration of the augmented launch vehicle. The cap of 169 million euros per challenger will encompass all activities under both parts of the challenge.

“With this initiative, ESA is taking decisive steps towards commercialization and expansion of launch services, which are essential for ensuring sovereignty in space,” Isar Aerospace wrote on X.