- Animanimus (kitchener)
- Ann Arbor Machine Company (ann-arbor)
- Best Steel Casting Company (oakland)
- Buhr Machine Tool Company (ann-arbor)
- Electro Arc Manufacturing (ann-arbor)
- Hommer Tool & Mfg., Inc (arlington-heights)
- ISSYS (ann-arbor)
- Lear Canada (kitchener)
- Leon Speakers (ann-arbor)
- Manufacturing Innovation Network (kitchener)
- NSK Corporation (ann-arbor)
- Oakland Makers (oakland)
- Plastic Services Group (arlington-heights)
- Tecumseh Products (ann-arbor)
- The Powhatan Woolen Manufacturing Company (powhatan)
- Webster Walker (powhatan)