In 2001 Pacesetter Completed a 62,500 sq ft hanger capable of housing twenty five corporate sized jets and 24,000 sq ft of attached office space. The complex houses two companies headquarters and maintenance shops as well as lounges for passengers and pilots.

Founded in 1985 Keystone Aviation Services has built almost every building at the Waterbury - Oxford Airport and for twenty of those twenty one years, Keystone has used only one contractor, Pacesetter Construction.