ermc aviation services, llc, doing business as delta global services (dgs), is an aviation ground handling services provider, formed late 2018, after delta air lines sold a stake of its subsidiary, dal global services, to argenbright holdings i llc. dgs is jointly owned by argenbright, with a 51 percent stake, and delta, with a 49 percent stake. ermc aviation services is owned by frank a. argenbright.