AIR TRANSPORT SERVICES GROUP INC revenue for the last year amounted to 40.91 B MXN, the most of which — 28.27 B MXN — came from its highest performing source at the moment, Aircraft, Crew, Maintenance and Insurance Services, the year earlier bringing 23.77 B MXN. The greatest contribution to the revenue figure was made by United States — last year it brought AIR TRANSPORT SERVICES GROUP INC 24.54 B MXN, and the year before that — 22.85 B MXN.