I know of a Lockheed Martin subsidiary that does some work in modified King Airs, and i asked what the possibility to fly for them if not military trained. They had 13 pilots, 11 were prior military aviators, one was prior military enlisted with civilian flight rating, and the last one was straightup civilian but had gobs of ours and a TR on 747. Some of these contractor companies are pretty hard to get into without a military backgound, but not impossible.