General Motors Corp,
Head quarter in Sterling Hts, MI and plant support to- General Motors, Arlington, TX
- General Motors, Ramos, MX
- General Motors, Fairfax, KS
- General Motors, Wentzville, MO
- CAMI Automotive
Ford Motor Company,
Head quarter in Dearborn, MI and plant support to- Ford Oakville
- Ford Dearborn Assembly
- Ford Fairhaven Assembly
- Ford Metal stamping, Buffalo, NY
- Ford Woodhaven Assembly
- Chicago assembly
- Ford, Kentucky
Fiat Chrysler Automobiles,
Head quarter in Auburn Hills, MI and plant support to- Brampton Assembly
- Sterling Stamping
Magna International including,
- Magna
- Cosma
- Decoma