 Ballco Manufacturing Company, INC. | Aurora | 20–99 | ● ACTIVE |
 Equipto Electronics CORP | Aurora | — | ● ACTIVE |
 Gripple INC | Aurora | 100–499 | ● ACTIVE |
 Industrial Enclosure CORP | Aurora | — | ● ACTIVE |
 Nitrex INC | Aurora | — | ● ACTIVE |
 Peerless Industries, INC. | Aurora | 100–499 | ● ACTIVE |
 Welding Company of America | Aurora | — | ● ACTIVE |
 Aztech Locknut Company | Aurora | — | ● ACTIVE |
 Comforts of Home Services, INC. | Aurora | — | ● ACTIVE |
 Direct Aerosystems INC | Aurora | — | ● ACTIVE |
| TSTri State Enterprises INC | Aurora | — | ● ACTIVE |
| CCCrown Cork & Seal CO (usa) | Aurora | — | ◇ UNVERIFIED |
| FVFox Valley Forge CO | Aurora | — | ◇ UNVERIFIED |
| JBJ B Inds INC | Aurora | — | ◇ UNVERIFIED |
| RMRWI Manufacturing, Inc. | Aurora | 100–499 | ◐ LIKELY ACTIVE |
| TTTangent Technologies LLC | Aurora | — | ◐ LIKELY ACTIVE |
| DIDur-o-wal Inc-formerly | Aurora | — | ◐ LIKELY ACTIVE |
| MAMetal Arts Finishing INC | Aurora | — | ◐ LIKELY ACTIVE |
| TMT&l Manufacturing | Aurora | — | ◐ LIKELY ACTIVE |
| ADAurora Distribution Center - 3m Company | Aurora | — | ◇ UNVERIFIED |
| GIGarbe Iron Works INC | Aurora | — | ◇ UNVERIFIED |
| HPHenry Pratt CO | Aurora | — | ◇ UNVERIFIED |
| SBSealmaster Bearings Emerson Power Transmission | Aurora | — | ◇ UNVERIFIED |
| VFValley Fastener Group LLC | Aurora | — | ◇ UNVERIFIED |
| AAurora | Aurora | 20–99 | ◐ LIKELY ACTIVE |
| CCCrown Cork & Seal USA, Inc. - Aurora Plant - MW Graphics | Aurora | 20–99 | ◐ LIKELY ACTIVE |
| NINitrex, Inc. Chicago Operations | Aurora | 20–99 | ◐ LIKELY ACTIVE |
| QTQuality Tool INC | Aurora | — | ◐ LIKELY ACTIVE |
| TATmax America Inc | Aurora | 20–99 | ◐ LIKELY ACTIVE |
| WHW.E. Hoban Company | Aurora | 20–99 | ◐ LIKELY ACTIVE |
| WWeldcoa | Aurora | 20–99 | ◐ LIKELY ACTIVE |
| BHBitemark Holdings, LLC | Aurora | — | ◇ UNVERIFIED |
| FVFox Valley Forge, Division of Cleveland Hardware & Forging CO. | Aurora | — | ◇ UNVERIFIED |
| JIJake's Inc. | Aurora | — | ◇ UNVERIFIED |
| JIJake's Inc. | Aurora | — | ◇ UNVERIFIED |
| JMJakes Machining & Rebuilding Service, Inc. | Aurora | — | ◇ UNVERIFIED |
| JMJakes Machining & Rebuilding Service, INC. | Aurora | — | ◇ UNVERIFIED |
| MAMetal Arts Finishing, INC. | Aurora | — | ◇ UNVERIFIED |
| MNMetal Networking | Aurora | — | ◇ UNVERIFIED |
| ROReco of Illinois, INC. | Aurora | — | ◇ UNVERIFIED |
| SSStead Sheet Metal INC. | Aurora | — | ◇ UNVERIFIED |
| SKSteel King Industries, INC. | Aurora | — | ◇ UNVERIFIED |
