Apple Steel Rule Die Co., INC. | Milwaukee | 20–99 | ● ACTIVE |
Fusion Babbitting Co, INC | Milwaukee | 20–99 | ● ACTIVE |
Ingeteam INC | Milwaukee | 100–499 | ● ACTIVE |
Milwaukee Cylinder INC | Cudahy | 20–99 | ● ACTIVE |
Radyne CORP | Milwaukee | 20–99 | ● ACTIVE |
Ampco Pumps Company LLC | Glendale | 100–499 | ● ACTIVE |
United Process Controls INC | Oak Creek | 20–99 | ● ACTIVE |
Air Impurities Removal Systems INC | Milwaukee | — | ● ACTIVE |
Airsan Corporation | Milwaukee | — | ● ACTIVE |
Anguil Environmental Systems, INC. | Milwaukee | — | ● ACTIVE |
Atmosphere Ventures, INC. | Fox Point | — | ● ACTIVE |
Bca Industries, INC. | Milwaukee | — | ● ACTIVE |
John M. Ellsworth Co., INC. | Milwaukee | — | ● ACTIVE |
Lift, INC | Milwaukee | — | ● ACTIVE |
Milwaukee Machinetool CORP | Milwaukee | — | ● ACTIVE |
| PIPflow Industries INC | Milwaukee | — | ● ACTIVE |
| RCRegalRexnord, Corporation | Cudahy | 100–499 | ● ACTIVE |
Regina Usa, INC. | Oak Creek | — | ● ACTIVE |
Thermach, LLC | Milwaukee | — | ● ACTIVE |
Toshiba America Energy Systems Corporation | Milwaukee | — | ● ACTIVE |
| VTVector Technologies LTD. | Milwaukee | 1–19 | ● ACTIVE |
Waterclock Engineering LLC | Milwaukee | — | ● ACTIVE |
York International Corporation | Milwaukee | — | ● ACTIVE |
| RIRexnord Industries LLC Gear Group | Milwaukee | — | ◐ LIKELY ACTIVE |
| CMChurch Metal Spinning CO | Milwaukee | 20–99 | ◐ LIKELY ACTIVE |
| FMFabricated Metal Products | Milwaukee | 20–99 | ◐ LIKELY ACTIVE |
| LMLippmann Milwaukee | Cudahy | 20–99 | ◐ LIKELY ACTIVE |
| PCPerlick Corporation | Milwaukee | — | ◐ LIKELY ACTIVE |
| ZCZenar CORP | Oak Creek | 100–499 | ◐ LIKELY ACTIVE |
| BSBriggs & Stratton CORP - Burleigh Facility | Wauwatosa | — | ◐ LIKELY ACTIVE |
United Refrigeration INC | Milwaukee | — | ◐ LIKELY ACTIVE |
| AGA&E Grinding | Oak Creek | 1–19 | ◐ LIKELY ACTIVE |
| DLDanfoss LLC | Milwaukee | 20–99 | ◐ LIKELY ACTIVE |
| EREte Reman (tower) | Milwaukee | 20–99 | ◐ LIKELY ACTIVE |
| KIKrones INC | Franklin | 500+ | ◐ LIKELY ACTIVE |
| NANorth American Clutch CORP | Milwaukee | 20–99 | ◐ LIKELY ACTIVE |
| TTTriangle Tool, LLC | Milwaukee | — | ◐ LIKELY ACTIVE |
| CGCaterpillar Global Mining - North of Rawson | South Milwaukee | — | ◇ UNVERIFIED |
| C1Crane 1 Services | Oak Creek | — | ◇ UNVERIFIED |
| HIHeattek INC West Allis | West Allis | — | ◇ UNVERIFIED |
| IRInmar Rx Solutions INC (former) | Milwaukee | — | ◇ UNVERIFIED |
| ITInternational Thermal Systems | Milwaukee | — | ◇ UNVERIFIED |
| IIIvarson INC | Milwaukee | — | ◇ UNVERIFIED |
| KSKomatsu South Harbor | Milwaukee | — | ◇ UNVERIFIED |
| MMMorris Material Handling INC | Oak Creek | — | ◇ UNVERIFIED |
| RIRexnord Industries INC | Milwaukee | — | ◇ UNVERIFIED |
| TSTarget Store T1895 | Milwaukee | — | ◇ UNVERIFIED |
| TAToshiba America Energy Systems CORP | West Allis | — | ◇ UNVERIFIED |
| CTCreation Technologies MIL | Oak Creek | 100–499 | ◐ LIKELY ACTIVE |
| DPDiamond Precision Products | Milwaukee | 20–99 | ◐ LIKELY ACTIVE |