| MPM.d. Pallet, INC. | Milwaukee | WI | Wood Product Manufacturing321920 | — | ◇ UNVERIFIED |
| MTMetalsa @ Tower Automotive Bldg #5 | Milwaukee | WI | Transportation Equipment Manufacturing336399 | — | ◇ UNVERIFIED |
| MPMetals Processing, INC | Milwaukee | WI | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| MSMidwest Stairs & Iron, Inc. | Milwaukee | WI | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |
| MLMillercoors LLC | Milwaukee | WI | Beverage and Tobacco Product Manufacturing312120 | — | ◇ UNVERIFIED |
| MAMilw Asphalt City of | Milwaukee | WI | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| MPMilwaukee Pallet, LLC | Milwaukee | WI | Wood Product Manufacturing321920 | — | ◇ UNVERIFIED |
| MPMilwaukee Pretzel Company, LLC | Milwaukee | WI | Food Manufacturing311812 | — | ◇ UNVERIFIED |
| MCM&M Cage Company, LLC | Milwaukee | WI | Fabricated Metal Product Manufacturing332618 | — | ◇ UNVERIFIED |
| MBMobCraft Beer Inc. | Milwaukee | WI | Beverage and Tobacco Product Manufacturing312120 | — | ◇ UNVERIFIED |
| MOMSTD Operations LLC | Milwaukee | WI | Machinery Manufacturing333519 | — | ◇ UNVERIFIED |
| MDMuggli Dental Studio | Milwaukee | WI | Miscellaneous Manufacturing339116 | — | ◇ UNVERIFIED |
| MSMulti-pack Solutions LLC | Milwaukee | WI | Chemical Manufacturing325620 | — | ◇ UNVERIFIED |
| NHNational Hinge CO (former) | Milwaukee | WI | Fabricated Metal Product Manufacturing332997 | — | ◇ UNVERIFIED |
| NTNature Tech LLC | Milwaukee | WI | Wood Product Manufacturing321999 | — | ◇ UNVERIFIED |
| NENohl Electrical Products CORP | Milwaukee | WI | Electrical Equipment, Appliance & Component Manufacturing335930 | — | ◇ UNVERIFIED |
| NFNohl Fabrication-a Division of the Gund Company | Milwaukee | WI | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| OLOurdailysalt LLC | Milwaukee | WI | Nonmetallic Mineral Product Manufacturing327112 | — | ◇ UNVERIFIED |
| OROzinga Ready Mix Concrete, INC. | Milwaukee | WI | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| PCPackaging Corporation of America | Milwaukee | WI | Paper Manufacturing322210 | — | ◇ UNVERIFIED |
| PLPak-rite, LTD. | Milwaukee | WI | Wood Product Manufacturing321920 | — | ◇ UNVERIFIED |
| PTPAK Technologies Holding Company Inc. | Milwaukee | WI | Chemical Manufacturing325199 | — | ◇ UNVERIFIED |
| PUPlastics Unlimited, Inc. | Milwaukee | WI | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| PAPoiema Automation Inc. | Milwaukee | WI | Machinery Manufacturing333519 | — | ◇ UNVERIFIED |
| PMPrecision Metals and Hardware, INC. | Milwaukee | WI | Fabricated Metal Product Manufacturing332510 | — | ◇ UNVERIFIED |
| PSPrize Steak Products, INC. | Milwaukee | WI | Food Manufacturing311612 | — | ◇ UNVERIFIED |
| QPQ-Redew Products, LLC | Milwaukee | WI | Electrical Equipment, Appliance & Component Manufacturing335210 | — | ◇ UNVERIFIED |
| RIRaphael Industries INC | Milwaukee | WI | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| RRRegal Rexnord Industries CORP | Milwaukee | WI | Machinery Manufacturing333613 | — | ◇ UNVERIFIED |
| RLRentapen, LLC | Milwaukee | WI | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| RTReprographic Technologies, Inc. | Milwaukee | WI | Printing and Related Support Activities323111 | — | ◇ UNVERIFIED |
| RCRitus CORP | Milwaukee | WI | Plastics and Rubber Products Manufacturing326291 | — | ◇ UNVERIFIED |
| RRRivcrete Ready Mix, LLC | Milwaukee | WI | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| RJR & J Pallet LLC | Milwaukee | WI | Wood Product Manufacturing321920 | — | ◇ UNVERIFIED |
| SCSaelens Corporation | Milwaukee | WI | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| SISaiia INC. | Milwaukee | WI | Food Manufacturing311225 | — | ◇ UNVERIFIED |
| SCService Container Company | Milwaukee | WI | Paper Manufacturing322212 | — | ◇ UNVERIFIED |
| SISherwin Industries INC. | Milwaukee | WI | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| SASigma Aldrich CO LLC | Milwaukee | WI | Chemical Manufacturing325188 | — | ◇ UNVERIFIED |
| SSSimple Soyman, LLC | Milwaukee | WI | Food Manufacturing311911 | — | ◇ UNVERIFIED |
| SSSmurfit Stone Container CORP | Milwaukee | WI | Apparel Manufacturing315210 | — | ◇ UNVERIFIED |
| SASnack Amercia, LLC | Milwaukee | WI | Food Manufacturing311911 | — | ◇ UNVERIFIED |
| STSnap-on Tool Company | Milwaukee | WI | Fabricated Metal Product Manufacturing332212 | — | ◇ UNVERIFIED |
| SBSpike Brewing, LLC | Milwaukee | WI | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |
| SBSpike Brewing, LLC | Milwaukee | WI | Machinery Manufacturing333241 | — | ◇ UNVERIFIED |
| SISsp International, INC. | Milwaukee | WI | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| SCStella & Chewy's LLC | Milwaukee | WI | Food Manufacturing311111 | — | ◇ UNVERIFIED |
| SWStuck Wood Works, Inc. | Milwaukee | WI | Furniture and Related Product Manufacturing337211 | — | ◇ UNVERIFIED |
| SWSummit Wood Products LLC | Milwaukee | WI | Wood Product Manufacturing321920 | — | ◇ UNVERIFIED |
 Super Sky Products Enterprises, LLC | Milwaukee | WI | Fabricated Metal Product Manufacturing332321 | — | ◇ UNVERIFIED |
