ESA announced Nov. 19 that it is extending contracts with HyImpulse, Isar Aerospace, Orbex and Rocket Factory Augsburg (RFA) worth a combined 44.22 million euros ($46.7 million) through its “Boost!” program to assist in integrated testing of the launch vehicles they are building.

ESA did not disclose the breakout of the funding, but Isar Aerospace said it received 15 million euros in additional Boost! funding. The company said it will use the funding for testing for the first two flights of its Spectrum small launch vehicle. The company has previously stated it planned to conduct the first Spectrum launch before the end of the year but has not provided recent updates on launch preparations.

Orbex said it received 5.6 million euros for integrated testing of its Orbex Prime launch vehicle it is developing for a first launch as soon as 2025. “This funding extension will enable us to make the vital next step in our journey as we move towards our inaugural launch of our microlauncher, Orbex Prime, next year,” said Phil Chambers, chief executive of Orbex, in a statement.

HyImpulse said will use its 11.8 million euros for work on its SL1 orbital launch vehicle, building upon its SR75 sounding rocket. That includes work on a new hybrid engine, avionics and a third-stage propulsion system.

RFA, which lost the first stage of its first RFA ONE rocket in August when it was destroyed during a static-fire test, will use 11.8 million euros to compete a new first stage and perform testing of it.