E. C. Styberg Engineering Company | Racine | 100–499 | ● ACTIVE |
| TTThermal Transfer Products | Racine | 100–499 | ● ACTIVE |
Wisconsin Plating Works of Racine, INC | Racine | — | ● ACTIVE |
Chromium INC | Racine | — | ● ACTIVE |
Pioneer Products, INC. | Racine | — | ● ACTIVE |
Rb Industrial Manufacturer LLC | Racine | — | ● ACTIVE |
Shrettech Tool & Machine LLC | Racine | — | ● ACTIVE |
| PPPioneer Products | Racine | 100–499 | ◐ LIKELY ACTIVE |
Hi-standard Machining Co., INC. | Racine | — | ◐ LIKELY ACTIVE |
| SShurpac | Racine | 20–99 | ◐ LIKELY ACTIVE |
| AEA& E Incorporated | Racine | — | ◇ UNVERIFIED |
| SPSummit Packaging Systems Racine | Racine | 100–499 | ◐ LIKELY ACTIVE |
| BTBodycote Thermal Processing | Racine | — | ◇ UNVERIFIED |
| CIChromium INC (formerly Conrad Plating) | Racine | — | ◇ UNVERIFIED |
| DDD & D Industrial Coating INC | Racine | — | ◇ UNVERIFIED |
| SISuperior Industrial Coating INC | Racine | — | ◇ UNVERIFIED |
| WPWisconsin Plating Works, INC. | Racine | — | ◇ UNVERIFIED |
| AEA & E Tools | Racine | 100–499 | ◐ LIKELY ACTIVE |
| DTDiversified Tooling Innovations | Racine | 20–99 | ◐ LIKELY ACTIVE |
| ECEckmann Custom Products | Racine | 1–19 | ◐ LIKELY ACTIVE |
| HEH. Ertel, INC. | Racine | — | ▲ REPORTED CLOSED |
| JMJensen Metal Products | Racine | 20–99 | ◐ LIKELY ACTIVE |
Pinnacle Precision INC | Racine | — | ◇ UNVERIFIED |
| AAAmerican Automatics, LLC | Racine | — | ◇ UNVERIFIED |
| CRCm Routing LLC | Racine | — | ◇ UNVERIFIED |
| HFHydraulic Fittings, INC. | Racine | — | ◇ UNVERIFIED |
Ideal Industries Lighting LLC Dba Cree Lighting | Racine | — | ◇ UNVERIFIED |
| IFIndustrial Finishing CO. of Racine, INC. | Racine | — | ◇ UNVERIFIED |
| MMMarini Manufacturing, Inc. | Racine | — | ◇ UNVERIFIED |
| PPPremier Products of Racine, INC. | Racine | — | ◇ UNVERIFIED |
| RHRacine Heat Treating CO INC | Racine | — | ◇ UNVERIFIED |
| RIRacine Iron & Wire Works, INC | Racine | — | ◇ UNVERIFIED |
| RBR & B Grinding CO INC | Racine | — | ◇ UNVERIFIED |
| SISmartool, INC. | Racine | — | ◇ UNVERIFIED |