• AECOM • BAE Systems Controls, Inc. • 交通与环境中心 • CH2M HILL, Inc. • Clark Construction Group, LLC • CRW Parts, Inc. • Cummins, Inc. • Dartco Transmission Sales & Service, Inc. • Direct Machinery Outlet, Inc. • Genfare • Gillig Corporation • Hensel Phelps Construction Co. • James River Petroleum (JRP) • Johnson & Towers Baltimore, Inc. • Laird Plastics, Inc. • Lytx, Inc. • Modine Manufacturing Company • Needles Eye • Neopart Transit, LLC • New Flyer of America, Inc. • Northeastern Bus Rebuilders, Inc. • P & H Auto-Electric, Inc. • RAM Industrial Services, Inc. • The Aftermarket Parts Company, LLC • Tri-state Battery & Auto Elec., Inc. • WSP