dgs provides services such as aircraft ground handling, aircraft maintenance, cargo handling, and many other aviation-related services. dgs services over 170 airports within the usa and the bahamas. it has contracts with multiple airlines and has not limited itself to delta air lines. dgs has over 19,000 employees. it is headquartered at the delta air lines headquarters in atlanta. dgs is partnered with delta, alaska airlines, envoyair, sun country, expressjet, spirit and united.