| ADAdvanced Decorative Systems INC | Millington | MI | Printing and Related Support Activities323113 | 20-99 | ◐ LIKELY ACTIVE |
| AMAdvanced Micronutrient Products, INC. | Reese | MI | Chemical Manufacturing325311 | 20-99 | ◐ LIKELY ACTIVE |
| AIAdvanta Industries INC | Petersburg | MI | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| AFAero Foil International | Muskegon | MI | Machinery Manufacturing333512 | 20-99 | ◐ LIKELY ACTIVE |
| AHAfc - Holcroft LLC | Wixom | MI | Machinery Manufacturing333994 | 20-99 | ◐ LIKELY ACTIVE |
| AIAgco, INC | Remus | MI | Plastics and Rubber Products Manufacturing326191 | — | ◐ LIKELY ACTIVE |
| AIAgritek Industries INC | Holland | MI | Fabricated Metal Product Manufacturing332116 | 20-99 | ◐ LIKELY ACTIVE |
| AGA G Simpson (usa), INC. | Sterling Hts | MI | Fabricated Metal Product Manufacturing332813 | — | ◐ LIKELY ACTIVE |
| AMAjax Metal Processing INC. (b5830) | Detroit | MI | Fabricated Metal Product Manufacturing332813 | — | ◐ LIKELY ACTIVE |
| ACAkzonobel Coatings INC | Pontiac | MI | Chemical Manufacturing325510 | — | ◐ LIKELY ACTIVE |
| APAlco Products, LLC | Detroit | MI | Petroleum and Coal Products Manufacturing324122 | — | ◐ LIKELY ACTIVE |
| AWAlcotec Wire CORP | Traverse City | MI | Primary Metal Manufacturing331318 | 20-99 | ◐ LIKELY ACTIVE |
| ATAllan Tool & Machine CO INC | Troy | MI | Fabricated Metal Product Manufacturing332721 | 20-99 | ◐ LIKELY ACTIVE |
| AIAlliance Interiors LLC | Lansing | MI | Transportation Equipment Manufacturing336360 | 100-499 | ◐ LIKELY ACTIVE |
| AFAllied Finishing INC | Grand Rapids | MI | Fabricated Metal Product Manufacturing332813 | — | ◐ LIKELY ACTIVE |
| ABAmphenol Borisch Technologies, INC | Grand Rapids | MI | Computer and Electronic Product Manufacturing334417 | — | ◐ LIKELY ACTIVE |
| AIAndex Industries INC | Escanaba | MI | Plastics and Rubber Products Manufacturing326199 | 20-99 | ◐ LIKELY ACTIVE |
| AIAndronaco Industries | Kentwood | MI | Plastics and Rubber Products Manufacturing326122 | 100-499 | ◐ LIKELY ACTIVE |
| AMAptargroup Midland | Midland | MI | Chemical Manufacturing325212 | 100-499 | ◐ LIKELY ACTIVE |
| ACAquatic CO (b2025) | Three Rivers | MI | Plastics and Rubber Products Manufacturing326191 | — | ◐ LIKELY ACTIVE |
Argonics, INC. | Gwinn | MI | Chemical Manufacturing325211 | — | ◐ LIKELY ACTIVE |
| AGArmada Grain CO | Armada | MI | Food Manufacturing311111 | 20-99 | ◐ LIKELY ACTIVE |
| AIAsc INC | Livonia | MI | Food Manufacturing311612 | — | ◐ LIKELY ACTIVE |
| AIAstech INC | Vassar | MI | Primary Metal Manufacturing331513 | 20-99 | ◐ LIKELY ACTIVE |
| AHAtmosphere Heat Treating INC. | Wixom | MI | Fabricated Metal Product Manufacturing332811 | 20-99 | ◐ LIKELY ACTIVE |
| APAusco Products INC | Benton Harbor | MI | Transportation Equipment Manufacturing336211 | 100-499 | ◐ LIKELY ACTIVE |
| AIAustemper INC | Clinton Township | MI | Fabricated Metal Product Manufacturing332811 | 1-19 | ◐ LIKELY ACTIVE |
| AHAutomatic Handling International INC | Erie | MI | Machinery Manufacturing333249 | 20-99 | ◐ LIKELY ACTIVE |
| AMAuto Metal Craft | Oak Park | MI | Transportation Equipment Manufacturing336370 | 20-99 | ◐ LIKELY ACTIVE |
| AUAzon USA INC | Kalamazoo | MI | Chemical Manufacturing325991 | — | ◐ LIKELY ACTIVE |
| BCBakelite Chemicals Llc, Beaver Creek Plant | Grayling | MI | Chemical Manufacturing325199 | — | ◐ LIKELY ACTIVE |
| BCBarry Controls | Ithaca | MI | Plastics and Rubber Products Manufacturing326291 | — | ◐ LIKELY ACTIVE |
| BCBasf Corporation | Mattawan | MI | Chemical Manufacturing325510 | — | ◐ LIKELY ACTIVE |
| BTBasf Toda America LLC | Battle Creek | MI | Chemical Manufacturing325180 | — | ◐ LIKELY ACTIVE |
| BCBay Corrugated Container INC | Monroe | MI | Paper Manufacturing322211 | 100-499 | ◐ LIKELY ACTIVE |
| BSBayloff Stamped Product | Belleville | MI | Transportation Equipment Manufacturing336370 | 100-499 | ◐ LIKELY ACTIVE |
| BCBdgn Corporation Dba American Autocoat | Grand Rapids | MI | Chemical Manufacturing325510 | 1-19 | ◐ LIKELY ACTIVE |
| BPBeacon Park Finishing LLC | Roseville | MI | Fabricated Metal Product Manufacturing332813 | — | ◐ LIKELY ACTIVE |
| BABekum America Corporation | Williamston | MI | Fabricated Metal Product Manufacturing332710 | 100-499 | ◐ LIKELY ACTIVE |
| BTBelding Tank Technologies, INC. | Belding | MI | Plastics and Rubber Products Manufacturing326199 | — | ◐ LIKELY ACTIVE |
| BABenteler Automotive CORP | Grand Rapids | MI | Transportation Equipment Manufacturing336390 | 100-499 | ◐ LIKELY ACTIVE |
| BMBest Metal Products | Grand Rapids | MI | Fabricated Metal Product Manufacturing332710 | 20-99 | ◐ LIKELY ACTIVE |
| BSBiewer Sawmill INC. | Mc Bain | MI | Wood Product Manufacturing321113 | 100-499 | ◐ LIKELY ACTIVE |
| BRBig Rapids Products | Big Rapids | MI | Transportation Equipment Manufacturing336370 | 100-499 | ◐ LIKELY ACTIVE |
| BQBillerud Quinnesec LLC | Quinnesec | MI | Paper Manufacturing322110 | — | ◐ LIKELY ACTIVE |
| BDBlue Diamond Steel Casting,inc. | Pigeon | MI | Primary Metal Manufacturing331511 | 100-499 | ◐ LIKELY ACTIVE |
| BTBorgwarner Thermal Systems INC | Cadillac | MI | Transportation Equipment Manufacturing336310 | 100-499 | ◐ LIKELY ACTIVE |
| BWBoxed Water Is Better | Holland | MI | Beverage and Tobacco Product Manufacturing312111 | 20-99 | ◐ LIKELY ACTIVE |
Bradford White Corporation | Middleville | MI | Electrical Equipment, Appliance & Component Manufacturing335220 | — | ◐ LIKELY ACTIVE |
| BPBrd Printing INC | Lansing | MI | Printing and Related Support Activities323111 | 20-99 | ◐ LIKELY ACTIVE |