| NBNational Block Company INC | Westland | MI | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◐ LIKELY ACTIVE |
| NPNational Plastek INC | Dutton | MI | Plastics and Rubber Products Manufacturing326112 | 20-99 | ◐ LIKELY ACTIVE |
| NCNew Center Stamping | Detroit | MI | Fabricated Metal Product Manufacturing332313 | 20-99 | ◐ LIKELY ACTIVE |
| NGNew Gldc LLC | Muskegon | MI | Primary Metal Manufacturing331410 | 20-99 | ◐ LIKELY ACTIVE |
| NHNew Hudson CORP | New Hudson | MI | Primary Metal Manufacturing331491 | 1-19 | ◐ LIKELY ACTIVE |
| NUNew Unison CORP | Ferndale | MI | Machinery Manufacturing333517 | 1-19 | ◐ LIKELY ACTIVE |
| NANexteer Automotive CORP | Saginaw | MI | Transportation Equipment Manufacturing336330 | 500+ | ◐ LIKELY ACTIVE |
| NANiles Aluminum Products INC | Niles | MI | Fabricated Metal Product Manufacturing332321 | 1-19 | ◐ LIKELY ACTIVE |
| NCNorthern Concrete Pipe-bay City | Bay City | MI | Nonmetallic Mineral Product Manufacturing327332 | 100-499 | ◐ LIKELY ACTIVE |
| ONOld Nation Brewing CO LLC | Williamston | MI | Nonmetallic Mineral Product Manufacturing327213 | 20-99 | ◐ LIKELY ACTIVE |
| OOOrchid Orthopedic Solutions LLC | Holt | MI | Fabricated Metal Product Manufacturing332112 | 100-499 | ◐ LIKELY ACTIVE |
| OCOrri CORP | Waterford | MI | Electrical Equipment, Appliance & Component Manufacturing335931 | 20-99 | ◐ LIKELY ACTIVE |
| OGOwosso Graphic Arts, INC | Owosso | MI | Printing and Related Support Activities323120 | 20-99 | ◐ LIKELY ACTIVE |
| PTParagon Tempered Glass | Niles | MI | Nonmetallic Mineral Product Manufacturing327211 | 20-99 | ◐ LIKELY ACTIVE |
| PTPaumac Tubing LLC - Plant 1 | Marysville | MI | Fabricated Metal Product Manufacturing332996 | 20-99 | ◐ LIKELY ACTIVE |
| PUPeter-lacke USA | Troy | MI | Chemical Manufacturing325510 | 20-99 | ◐ LIKELY ACTIVE |
| PFPisces Fish Machinery INC | Gladstone | MI | Machinery Manufacturing333241 | 1-19 | ◐ LIKELY ACTIVE |
| PCPlastomer Corporation | Livonia | MI | Plastics and Rubber Products Manufacturing326150 | 100-499 | ◐ LIKELY ACTIVE |
| PTPorex Technologies Corporation | St. Charles | MI | Chemical Manufacturing325211 | 20-99 | ◐ LIKELY ACTIVE |
| PFPrairie Farms Dairy- Battle Creek | Battle Creek | MI | Food Manufacturing311511 | 100-499 | ◐ LIKELY ACTIVE |
| PIPratt Intermodal Chassis LLC | Niles | MI | Transportation Equipment Manufacturing336120 | 100-499 | ◐ LIKELY ACTIVE |
| PWPratt & Whitney | Holt | MI | Transportation Equipment Manufacturing336412 | 100-499 | ◐ LIKELY ACTIVE |
| PSPrecision Stamping Co-howell | Howell | MI | Fabricated Metal Product Manufacturing332116 | 20-99 | ◐ LIKELY ACTIVE |
| PTPreferred Tool & Die Company, Incorporated | Comstock Park | MI | Machinery Manufacturing333514 | 20-99 | ◐ LIKELY ACTIVE |
| PIPremier Industries Corporation | Monroe | MI | Fabricated Metal Product Manufacturing332710 | 20-99 | ◐ LIKELY ACTIVE |
| PSProduction Saw and Machine | Clark Lake | MI | Fabricated Metal Product Manufacturing332710 | 100-499 | ◐ LIKELY ACTIVE |
| PMProgress Machining INC. | Spring Lake | MI | Fabricated Metal Product Manufacturing332710 | — | ◐ LIKELY ACTIVE |
| PBPs Business Acquisition INC | Sparta | MI | Printing and Related Support Activities323111 | 20-99 | ◐ LIKELY ACTIVE |
| PGPsg Grand Rapids (previously Blackmer, a Dover Co) | Grand Rapids | MI | Primary Metal Manufacturing331511 | 100-499 | ◐ LIKELY ACTIVE |
| QHQuality Hardwoods | Sunfield | MI | Wood Product Manufacturing321113 | 20-99 | ◐ LIKELY ACTIVE |
| QCQuantum Composites INC. | Bay City | MI | Chemical Manufacturing325211 | 20-99 | ◐ LIKELY ACTIVE |
| RCRainbow Coatings of Michigan | Flint | MI | Fabricated Metal Product Manufacturing332812 | 1-19 | ◐ LIKELY ACTIVE |
| RGRampf Group INC | Wixom | MI | Chemical Manufacturing325211 | 20-99 | ◐ LIKELY ACTIVE |
| RBR & B Electronics INC | Sault Sainte Marie | MI | Plastics and Rubber Products Manufacturing326199 | — | ◐ LIKELY ACTIVE |
| RAReal Alloy Specification LLC | Coldwater | MI | Primary Metal Manufacturing331313 | 20-99 | ◐ LIKELY ACTIVE |
| RCReed City Group LLC | Reed City | MI | Plastics and Rubber Products Manufacturing326199 | 100-499 | ◐ LIKELY ACTIVE |
| RCRenosol Corporation | Bay City | MI | Chemical Manufacturing325991 | 1-19 | ◐ LIKELY ACTIVE |
Resistance Welding Machine & Accessory, LLC | Saint Joseph | MI | Machinery Manufacturing333992 | 1-19 | ◐ LIKELY ACTIVE |
| RIRhetech Inc-whitmore Lake | Whitmore Lake | MI | Chemical Manufacturing325211 | 20-99 | ◐ LIKELY ACTIVE |
| RMRingmasters Mfg LLC | Wayne | MI | Fabricated Metal Product Manufacturing332111 | 20-99 | ◐ LIKELY ACTIVE |
| RMRoman Manufacturing INC | Grand Rapids | MI | Electrical Equipment, Appliance & Component Manufacturing335311 | 100-499 | ◐ LIKELY ACTIVE |
| RRRomeo Rim, INC. | Romeo | MI | Plastics and Rubber Products Manufacturing326121 | 20-99 | ◐ LIKELY ACTIVE |
| RPRoto Plastics CORP | Adrian | MI | Plastics and Rubber Products Manufacturing326122 | 20-99 | ◐ LIKELY ACTIVE |
| SAS a Automotive LTD | Webberville | MI | Transportation Equipment Manufacturing336111 | 100-499 | ◐ LIKELY ACTIVE |
| SKSekisui Kydex LLC | Holland | MI | Plastics and Rubber Products Manufacturing326113 | 20-99 | ◐ LIKELY ACTIVE |
| SVSekisui Voltek LLC. (b8786) | Coldwater | MI | Chemical Manufacturing325991 | 20-99 | ◐ LIKELY ACTIVE |
| SIServiscreen INC | Jenison | MI | Printing and Related Support Activities323113 | 20-99 | ◐ LIKELY ACTIVE |
| SPShannon Precision Fastener LLC | Auburn Hills | MI | Fabricated Metal Product Manufacturing332111 | 20-99 | ◐ LIKELY ACTIVE |
| SMSouthern Michigan Rubber | Three Rivers | MI | Plastics and Rubber Products Manufacturing326291 | 20-99 | ◐ LIKELY ACTIVE |
| SGSpartan Graphics | Sparta | MI | Printing and Related Support Activities323110 | 100-499 | ◐ LIKELY ACTIVE |