This is a link for all companies in the Management Association for Private Photogrammetric Surveyors (MAPPS). MAPPS: Meet Our Member Firms Only a few of these companies have airplanes, but it will get you a start.

Also, read through this link for an ongoing thread on this website. http://www.airlinepilotforums.com/pa...vey-pilot.html Lots of good info in there.