| ACArntzen CORP | Rockford | IL | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| AGAzz Galvanizing Rockford LLC Dba Roger Bros Galvanizing LLC | Rockford | IL | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| CRConcentric Rockford INC | Rockford | IL | Machinery Manufacturing333996 | — | ◇ UNVERIFIED |
| EFEconomy Fasteners INC | Rockford | IL | Fabricated Metal Product Manufacturing332811 | — | ◇ UNVERIFIED |
| FIFiberglass Innovations | Rockford | IL | Chemical Manufacturing325510 | — | ◇ UNVERIFIED |
| JCJl Clark INC | Rockford | IL | Printing and Related Support Activities323111 | — | ◇ UNVERIFIED |
| KFK&j Finishing INC | Rockford | IL | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| MDMinnesota Diversified Products - West | Rockford | MN | Plastics and Rubber Products Manufacturing326140 | — | ◇ UNVERIFIED |
| MPMnp Precision Parts LLC | Rockford | IL | Fabricated Metal Product Manufacturing332722 | — | ◇ UNVERIFIED |
| MHMte Hydraulics, INC. | Rockford | IL | Machinery Manufacturing333996 | — | ◇ UNVERIFIED |
| OBOmg Building Products LLC | Rockford | MN | Petroleum and Coal Products Manufacturing324122 | — | ◇ UNVERIFIED |
| PHParker Hannifin/cylinder Division | Rockford | IL | Machinery Manufacturing333995 | — | ◇ UNVERIFIED |
| RMReady Mix USA Llc- Rockford Plant | Rockford | TN | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| RFRocknel Fastener INC | Rockford | IL | Fabricated Metal Product Manufacturing332722 | — | ◇ UNVERIFIED |
| RORust Oleum | Rockford | IL | Chemical Manufacturing325510 | — | ◇ UNVERIFIED |
| SWSherwin Williams CO the | Rockford | IL | Chemical Manufacturing325510 | — | ◇ UNVERIFIED |
| TCTestor CORP | Rockford | IL | Chemical Manufacturing325510 | — | ◇ UNVERIFIED |
| BIBarnes International INC | Rockford | IL | Machinery Manufacturing333999 | — | ◇ UNVERIFIED |
| ALA-1 Lapping & Machine | Rockford | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| AWA-1 Wire Tech INC. | Rockford | IL | Primary Metal Manufacturing331491 | — | ◇ UNVERIFIED |
| AHAai Heavy Rebuilders | Rockford | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| AAAlways Aluminum | Rockford | IL | Primary Metal Manufacturing331524 | — | ◇ UNVERIFIED |
| ACAmerock CORP | Rockford | IL | Fabricated Metal Product Manufacturing332510 | — | ◇ UNVERIFIED |
| AAndersonbrecon | Rockford | IL | Chemical Manufacturing325412 | — | ◇ UNVERIFIED |
| AHAnderson Heat Treating INC | Rockford | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| AMAtwood Mobile Products | Rockford | IL | Fabricated Metal Product Manufacturing332510 | — | ◇ UNVERIFIED |
 Barron Industries | Rockford | IL | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| CCCaddell Construction | Rockford | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
 Chem Processing | Rockford | IL | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| CCCustom Compounding Services LLC | Rockford | IL | Chemical Manufacturing325991 | — | ◇ UNVERIFIED |
| DIDasco INC | Rockford | IL | Fabricated Metal Product Manufacturing332216 | — | ◇ UNVERIFIED |
| DMDb Metal Finishing LLC | Rockford | IL | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| DSDip Seal Plastics INC | Rockford | IL | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| DIDynacorp, INC | Rockford | IL | Machinery Manufacturing333613 | — | ◇ UNVERIFIED |
| ECEclipse Combustion INC | Rockford | IL | Fabricated Metal Product Manufacturing332911 | — | ◇ UNVERIFIED |
| EFEllo Furniture Manufacturing CO | Rockford | IL | Furniture and Related Product Manufacturing337122 | — | ◇ UNVERIFIED |
| ESEnameled Steel & Sign CO | Rockford | IL | Fabricated Metal Product Manufacturing332618 | — | ◇ UNVERIFIED |
| EIEndpoint INC | Rockford | IL | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| EWEssex Wire - Rockford | Rockford | IL | Primary Metal Manufacturing331420 | — | ◇ UNVERIFIED |
| EWEvoqua Water Technologies LLC | Rockford | IL | Machinery Manufacturing333310 | — | ◇ UNVERIFIED |
| FDFire Department Coffee INC | Rockford | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| FMFpm-db Metal Finishing | Rockford | IL | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| GCGates CORP | Rockford | IL | Fabricated Metal Product Manufacturing332912 | — | ◇ UNVERIFIED |
| GCG&m Construction | Rockford | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| GGreenlee | Rockford | IL | Fabricated Metal Product Manufacturing332212 | — | ◇ UNVERIFIED |
| GCGuilford CORP | Rockford | IL | Furniture and Related Product Manufacturing337110 | — | ◇ UNVERIFIED |
| HGHt Gaston CORP | Rockford | IL | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| ICIngersoll Cutting Tool CO Member of the Imc Group | Rockford | IL | Machinery Manufacturing333515 | — | ◇ UNVERIFIED |
| IFInnovative Fixture Solutions LLC | Rockford | IL | Fabricated Metal Product Manufacturing332618 | — | ◇ UNVERIFIED |
| IPInternational Paper CO | Rockford | IL | Paper Manufacturing322211 | — | ◇ UNVERIFIED |
