| ALAdvance Lapeer INC | Lapeer | MI | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| ABAeromotion By Textron Aviation | Saginaw | MI | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| ASAevitas Specialty Services CORP | Redford | MI | Petroleum and Coal Products Manufacturing324110 | — | ◇ UNVERIFIED |
| AMAga Marvel | Greenville | MI | Machinery Manufacturing333415 | — | ◇ UNVERIFIED |
| AIAidco International INC | Adrian | MI | Machinery Manufacturing333921 | — | ◇ UNVERIFIED |
| ACAis Construction Equipment CORP | Lansing | MI | Chemical Manufacturing325510 | — | ◇ UNVERIFIED |
| AMAjax Materials CORP | Southfield | MI | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| AMAjax Materials CORP | Detroit | MI | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| AMAjax Materials CORP | Rockwood | MI | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| AMAjax Materials Corporation | Auburn Hills | MI | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| APAjm Packaging | Detroit | MI | Paper Manufacturing322220 | — | ◇ UNVERIFIED |
| AKA & K Finishing INC Plant 1 | Kentwood | MI | Transportation Equipment Manufacturing336390 | — | ◇ UNVERIFIED |
| ACAkzo Coating America INC | Troy | MI | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| ASAlbrecht Sand and Gravel | Snover | MI | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| ABAlfredson Brothers Construction Company | Menominee | MI | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| APA-line Products CORP | Detroit | MI | Chemical Manufacturing325510 | — | ◇ UNVERIFIED |
| AMAllegan Metal Finishing Fire | Allegan | MI | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
 Allied Metals CORP | Troy | MI | Primary Metal Manufacturing331512 | — | ◇ UNVERIFIED |
| APAllied Printing Company INC | Ferndale | MI | Printing and Related Support Activities323111 | — | ◇ UNVERIFIED |
| APAlma Products I Incorporated | Alma | MI | Transportation Equipment Manufacturing336399 | — | ◇ UNVERIFIED |
| APAlmond Product, INC. | Muskegon | MI | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| ABAlpena Biorefinery | Alpena | MI | Wood Product Manufacturing321219 | — | ◇ UNVERIFIED |
 Alpha Packaging | Ypsilanti | MI | Plastics and Rubber Products Manufacturing326160 | — | ◇ UNVERIFIED |
| AMAlreco Metals | Benton Harbor | MI | Primary Metal Manufacturing331000 | — | ◇ UNVERIFIED |
| ACAlternative Components | Warren | MI | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| ACAlumilite CORP Div of Polytek Dev CORP | Galesburg | MI | Chemical Manufacturing325212 | — | ◇ UNVERIFIED |
| AAAmerican Axle & Mfg | Detroit | MI | Transportation Equipment Manufacturing336330 | — | ◇ UNVERIFIED |
| ACAmerican Colloid CO | Albion | MI | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| ACAmerican Compounding Specialties | Brighton | MI | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| ALAmerican Litho | Belleville | MI | Printing and Related Support Activities323110 | — | ◇ UNVERIFIED |
| APAmerican Petroleum | Detroit | MI | Chemical Manufacturing325611 | — | ◇ UNVERIFIED |
| ARAmerican Rack Company | Grand Rapids | MI | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| ARAmerican Rheinmetall, Lpr-elm | Lapeer | MI | Transportation Equipment Manufacturing336992 | — | ◇ UNVERIFIED |
| ATAmerican Tool Center Lansing | Lansing | MI | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| APAmetek Prestolite Motors | Dearborn Heights | MI | Electrical Equipment, Appliance & Component Manufacturing335312 | — | ◇ UNVERIFIED |
| AIAmp Industries | Harrison Township | MI | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| ABAmrize Building Envelope Llc-st. Joseph | Constantine | MI | Paper Manufacturing322130 | — | ◇ UNVERIFIED |
| ARAmsted Rail Company INC | Homer | MI | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| AMA M T Freight INC | Battle Creek | MI | Textile Mills313230 | — | ◇ UNVERIFIED |
| ALAnatech Lab | Battle Creek | MI | Chemical Manufacturing325413 | — | ◇ UNVERIFIED |
| AIAncast INC. | Sodus | MI | Primary Metal Manufacturing331513 | — | ◇ UNVERIFIED |
| ACAn Corporate Center LLC | Plymouth | MI | Printing and Related Support Activities323111 | — | ◇ UNVERIFIED |
| ADAnderson Development CO | Adrian | MI | Chemical Manufacturing325120 | — | ◇ UNVERIFIED |
| AIAntolin Interiors USA INC Dba Antolin St. Clair | East China | MI | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| ASAntolin Shelby | Shelby Township | MI | Transportation Equipment Manufacturing336330 | — | ◇ UNVERIFIED |
| ASAntolin St Clair LLC | China Township | MI | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| APA Pac Manufacturing CO | Walker | MI | Plastics and Rubber Products Manufacturing326111 | — | ◇ UNVERIFIED |
| ADArchitectural Door and Millwork INC | New Hudson | MI | Wood Product Manufacturing321911 | — | ◇ UNVERIFIED |
| AMArlans Manufacturing | Southfield | MI | Machinery Manufacturing333298 | — | ◇ UNVERIFIED |
| AIArmorclad INC | Farmington Hills | MI | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
