As initially announced, Stratolaunch Systems was a collaborative project that included subcontractors SpaceX, Scaled Composites, and Dynetics, with funding provided by Microsoft co-founder Paul G. Allen's Vulcan investment and project management company.
Jak původně Stratolaunch oznámila, byl to společný projekt, který zahrnoval subdodavatele SpaceX, Scaled Composites, a Dynetics, s finančními prostředky poskytnutými společností Vulcan spoluzakladatele Microsoftu Paula G.