| SESsi Electronics INC | Belmont | MI | Printing and Related Support Activities323113 | 20-99 | ◐ LIKELY ACTIVE |
| STSteel Technologies INC | Canton | MI | Primary Metal Manufacturing331221 | — | ◐ LIKELY ACTIVE |
| SMSt Marys Cement | Detroit | MI | Nonmetallic Mineral Product Manufacturing327310 | 1-19 | ◐ LIKELY ACTIVE |
| SCStorage Control Systems INC | Sparta | MI | Machinery Manufacturing333249 | 20-99 | ◐ LIKELY ACTIVE |
| SCSuperior Casket CO INC | Redford | MI | Miscellaneous Manufacturing339995 | 1-19 | ◐ LIKELY ACTIVE |
| SMSweeney Metalworking LLC | Saginaw | MI | Machinery Manufacturing333517 | 1-19 | ◐ LIKELY ACTIVE |
| SMSweet Mfg | Kalamazoo | MI | Transportation Equipment Manufacturing336330 | 20-99 | ◐ LIKELY ACTIVE |
| TSTemp-rite Steel Treating | Harrison Township | MI | Fabricated Metal Product Manufacturing332811 | 1-19 | ◐ LIKELY ACTIVE |
| TCThorrez C Industries INC | Jackson | MI | Fabricated Metal Product Manufacturing332721 | 100-499 | ◐ LIKELY ACTIVE |
| TPTpi Powder Metallurgy | St. Charles | MI | Fabricated Metal Product Manufacturing332117 | 20-99 | ◐ LIKELY ACTIVE |
| TMTrident Manufacturing | Ithaca | MI | Miscellaneous Manufacturing339999 | 20-99 | ◐ LIKELY ACTIVE |
| UPUnited Paint & Chemical CORP | Southfield | MI | Chemical Manufacturing325510 | 1-19 | ◐ LIKELY ACTIVE |
| VIVersatrans INC | Plymouth | MI | Printing and Related Support Activities323113 | 20-99 | ◐ LIKELY ACTIVE |
| WCWaco Classic Aircraft CORP | Battle Creek | MI | Transportation Equipment Manufacturing336411 | 20-99 | ◐ LIKELY ACTIVE |
| WEWatson Engineering INC | Taylor | MI | Fabricated Metal Product Manufacturing332999 | 100-499 | ◐ LIKELY ACTIVE |
| WKWelk Ko Fabrications INC | Livonia | MI | Fabricated Metal Product Manufacturing332322 | 1-19 | ◐ LIKELY ACTIVE |
| WMWico Metal Products | Warren | MI | Fabricated Metal Product Manufacturing332116 | 100-499 | ◐ LIKELY ACTIVE |
| WIWoodworth INC. | Detroit | MI | Fabricated Metal Product Manufacturing332811 | — | ◐ LIKELY ACTIVE |
| WIWoodworth INC Pontiac | Pontiac | MI | Fabricated Metal Product Manufacturing332811 | 100-499 | ◐ LIKELY ACTIVE |
| ZAZf Axle Drives Marysville | Marysville | MI | Transportation Equipment Manufacturing336111 | — | ◐ LIKELY ACTIVE |
| ZTZ Technologies CORP. | Redford | MI | Chemical Manufacturing325510 | 20-99 | ◐ LIKELY ACTIVE |
| 4D42 Degrees Processing, LLC | Kalkaska | MI | Food Manufacturing311991 | — | ◐ LIKELY ACTIVE |
| AAA and K Finishing INC | Kentwood | MI | Transportation Equipment Manufacturing336390 | 100-499 | ◐ LIKELY ACTIVE |
| AIAbb INC. | Auburn Hills | MI | Fabricated Metal Product Manufacturing332812 | 100-499 | ◐ LIKELY ACTIVE |
Able Box Brands LLC | South Lyon | MI | Paper Manufacturing322211 | — | ◐ LIKELY ACTIVE |
| AIAcemco Incorporated - Stamping | Spring Lake | MI | Transportation Equipment Manufacturing336370 | 100-499 | ◐ LIKELY ACTIVE |
Acme Manufacturing CO | Auburn Hills | MI | Machinery Manufacturing333512 | 20-99 | ◐ LIKELY ACTIVE |
| AIAcrofab INC | Zeeland | MI | Plastics and Rubber Products Manufacturing326199 | 20-99 | ◐ LIKELY ACTIVE |
| AFActive Feed Company | Pigeon | MI | Food Manufacturing311119 | 20-99 | ◐ LIKELY ACTIVE |
| APAdco Products INC | Michigan Center | MI | Chemical Manufacturing325520 | — | ◐ LIKELY ACTIVE |
| AAAdvanced Auto Trends, Inc. P1 | Oxford | MI | Plastics and Rubber Products Manufacturing326199 | 20-99 | ◐ LIKELY ACTIVE |
| AMAdvanced Micronutrient Products, INC. | Reese | MI | Chemical Manufacturing325311 | 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 |
| ACAgs Company Automotive Solutions LLC | Muskegon Heights | MI | Petroleum and Coal Products Manufacturing324191 | 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 |
| AFAJD Forest Products | Grayling | MI | Wood Product Manufacturing321113 | 20-99 | ◐ 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 |
| AFAllied Finishing INC | Grand Rapids | MI | Fabricated Metal Product Manufacturing332813 | — | ◐ LIKELY ACTIVE |
| AMAludyne Montague LLC | Montague | MI | Transportation Equipment Manufacturing336330 | — | ◐ LIKELY ACTIVE |
| ALAlutech LLC | Benton Harbor | MI | Primary Metal Manufacturing331523 | — | ◐ LIKELY ACTIVE |
| AMAmerican Mitsuba CORP | Mount Pleasant | MI | Transportation Equipment Manufacturing336322 | 500+ | ◐ LIKELY ACTIVE |
| AMAmeriti Manufacturing Company | Detroit | MI | Primary Metal Manufacturing331110 | 20-99 | ◐ LIKELY ACTIVE |
| ABAmphenol Borisch Technologies, INC | Grand Rapids | MI | Computer and Electronic Product Manufacturing334417 | — | ◐ LIKELY ACTIVE |
| ACAnchor Coupling INC | Menominee | MI | Fabricated Metal Product Manufacturing332510 | — | ◐ 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 |