| ARArrow Racing Engines | Auburn Hills | MI | Machinery Manufacturing333618 | — | ◇ UNVERIFIED |
| ACArted Chrome Plating INC | Detroit | MI | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| AGAsc Gibraltar | Trenton | MI | Transportation Equipment Manufacturing336211 | — | ◇ UNVERIFIED |
| AIAsc INC | Lansing | MI | Transportation Equipment Manufacturing336000 | — | ◇ UNVERIFIED |
| ANAscorium North America | Auburn Hills | MI | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| ASAsh Stevens LLC | Detroit | MI | Chemical Manufacturing325412 | — | ◇ UNVERIFIED |
| APAsphalt Paving INC | Muskegon | MI | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| APAsphalt Paving, INC | Muskegon | MI | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| ACAstro Cap Mfg | Dexter | MI | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| ACAti Casting Service | Alpena | MI | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| ATAtlas Technologies LLC | Fenton | MI | Machinery Manufacturing333298 | — | ◇ UNVERIFIED |
| AMAunt Millie's Bakeries, Plymouth | Plymouth | MI | Food Manufacturing311812 | — | ◇ UNVERIFIED |
| ACAurora Cad Cam INC | Metamora | MI | Machinery Manufacturing333511 | — | ◇ UNVERIFIED |
| AFAuthority Flame Hardening & Straightening LLC | Chesterfield | MI | Fabricated Metal Product Manufacturing332811 | — | ◇ UNVERIFIED |
| ACAutomotive Components Holdings LLC Milan Plant | Milan | MI | Transportation Equipment Manufacturing336211 | — | ◇ UNVERIFIED |
| ACAutomotive Components Holdings, LLC - Utica Plant | Utica | MI | Transportation Equipment Manufacturing336390 | — | ◇ UNVERIFIED |
| ACAutomotive Composites Company | Sterling Hts | MI | Transportation Equipment Manufacturing336350 | — | ◇ UNVERIFIED |
| APAvl Powertrain Engineering INC | Plymouth | MI | Machinery Manufacturing333618 | — | ◇ UNVERIFIED |
| APAvl Powertrain Engineering(n6989) | Ann Arbor | MI | Transportation Equipment Manufacturing336390 | — | ◇ UNVERIFIED |
| AMAvon Machining LLC | Shelby Township | MI | Machinery Manufacturing333612 | — | ◇ UNVERIFIED |
| AAwtec | Plymouth | MI | Transportation Equipment Manufacturing336350 | — | ◇ UNVERIFIED |
| AGAxium Group LLC (a0703) | Cassopolis | MI | Furniture and Related Product Manufacturing337122 | — | ◇ UNVERIFIED |
| ANAxson North America Incorporated | Eaton Rapids | MI | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| AAAz Automotive | Warren | MI | Transportation Equipment Manufacturing336370 | — | ◇ UNVERIFIED |
| AAAz Automotive-roseville | Roseville | MI | Transportation Equipment Manufacturing336330 | — | ◇ UNVERIFIED |
| BCBacco Construction CO | Iron Mountain | MI | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| BCBacco Construction CO Plant 12 | Iron Mountain | MI | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| BCBacco Construction CO Plant Puc-10250 | Iron Mountain | MI | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| BEBach Enterprises LLC | Chesterfield Twp | MI | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| BFBaker Furniture CO | Holland | MI | Furniture and Related Product Manufacturing337000 | — | ◇ UNVERIFIED |
| BPBarber Packaging CO | Bangor | MI | Plastics and Rubber Products Manufacturing326150 | 20-99 | ◇ UNVERIFIED |
| BOBarrette Outdoor Living | Flint | MI | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| BPBarrett Paving Materials INC | Attica | MI | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| BPBarrett Paving Materials INC | Smiths Creek | MI | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| BPBarrett Paving Materials INC | Burton | MI | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| BPBarrett Paving Materials INC | Flint | MI | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| BCBasf CORP | Detroit | MI | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| BEBaum Enterprises LLC | Traverse City | MI | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| BEBbi Enterprises Group, INC. | Holland | MI | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| BPB-b Paint CORP | Flint | MI | Chemical Manufacturing325510 | — | ◇ UNVERIFIED |
| BEBeazer East INC | Reed City | MI | Wood Product Manufacturing321114 | — | ◇ UNVERIFIED |
| BABeech and Rich INC | Battle Creek | MI | Chemical Manufacturing325510 | — | ◇ UNVERIFIED |
| BIBelanger, INC. | Northville | MI | Machinery Manufacturing333248 | — | ◇ UNVERIFIED |
| BPBelt Power, LLC (p1156) | Grand Rapids | MI | Plastics and Rubber Products Manufacturing326220 | — | ◇ UNVERIFIED |
| BABenteler Automotive CORP | Grand Rapids | MI | Transportation Equipment Manufacturing336390 | — | ◇ UNVERIFIED |
| BMBenton Metal Recycling | Benton Harbor | MI | Primary Metal Manufacturing331492 | — | ◇ UNVERIFIED |
| BTBent Tube INC | Fowlerville | MI | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| BSBerkley Screw Machine Products INC | Troy | MI | Fabricated Metal Product Manufacturing332721 | — | ◇ UNVERIFIED |
| BIBernal Inc-rochester Hills | Rochester Hills | MI | Machinery Manufacturing333514 | — | ◇ UNVERIFIED |
| BCBest Concrete & Supply | Wyandotte | MI | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
