He also worked in the Office of the Secretary of the Air Force, Special Projects organization, Los Angeles AFS, California, on a classified satellite program.

[2] He remains active in supporting youth education through the Space Foundation, most recently visiting Alaska schools to share his experiences.

[11] He was also the manager for a joint effort between Northrop Grumman Corporation (NGC) and Andrews Space in the NASA funded 2nd Generation Reusable Launch Vehicle (RLV) program.

[12] In 2006, Holder joined AirLaunch LLC (founded by space entrepreneur Gary Hudson) as Chief Program Executive.

[13] He then started Holder Aerospace, an engineering consulting company in partnership with Curtis Gifford, located in Renton, Washington.