S
- Saga Communications
- Schmohz
- SmithGroup
- Spartan Motors
- Spartan Stores (D&W Fresh Market, Family Fare Supermarkets, Felpausch, Glen's Markets, Glen's Fresh Marketplace and VG's Grocery).
- Stainless Broadcasting Company
- Standing Point Films
- Steelcase, Inc.
- Stryker Corporation
- Superior Aviation
- Syntel
Read more about this topic: List Of Michigan Companies