Infodata Systems Inc. is expanding its business development staff to promote growth of its pharmaceutical, financial services and government client list. James P. McCaslin has joined Infodata in the newly created position of Director of Special Programs. Richard E.H. Julien III, is a newly named Senior Systems Consultant who will also concentrate on intelligence-related contracts. Brendan Babbington, is a newly named Account Manager, Philip J. Osip has joined as a Senior Systems Consultant, and William Lynch, is appointed to the new position of Account Manager.