 Next, the Giant Group, a conglomeration of cement and recycling companies, offered to purchase the airline, but their offer fell through.In the end, Mesa Airlines acquired Aspen's Denver hub and routes except for the Denver to Aspen route, stations and ground equipment.Air Wisconsin Services Inc., the parent company for Air Wisconsin, acquired all of Aspen's common stock, its Aspen routes, and its BAe 146 and Convair 580 aircraft.