| 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 |
| LOLamson Oil CO | Rockford | IL | Petroleum and Coal Products Manufacturing324191 | — | ◇ UNVERIFIED |
| LBLiebovich Brothers INC | Rockford | IL | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| LHLincoln Hotel Demolition | Rockford | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| MLMedranos Landscape INC | Rockford | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| NINeblock INC | Rockford | IL | Primary Metal Manufacturing331312 | — | ◇ UNVERIFIED |
| NTNoah's Trading Post | Rockford | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| OAOlson Aluminum Castings | Rockford | IL | Primary Metal Manufacturing331524 | — | ◇ UNVERIFIED |
| PLPci Logistics | Rockford | IL | Chemical Manufacturing325412 | — | ◇ UNVERIFIED |
| PPPci Pharmaceutical Services | Rockford | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| PPPerformance Products INC | Rockford | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| PAPettit Auto and Truck Sales | Rockford | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| PFPiranha Fabrication | Rockford | IL | Machinery Manufacturing333992 | — | ◇ UNVERIFIED |
| RRRin Rockford Division of Rin INC | Rockford | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| RARockford American Plating | Rockford | IL | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| RCRockford Cement Products CO | Rockford | IL | Nonmetallic Mineral Product Manufacturing327331 | — | ◇ UNVERIFIED |
| RERockford Electric Equipment CO | Rockford | IL | Electrical Equipment, Appliance & Component Manufacturing335312 | — | ◇ UNVERIFIED |
| RFRockford Foundries | Rockford | IL | Primary Metal Manufacturing331524 | — | ◇ UNVERIFIED |
| RIRockford Industrial Distribution Ctr | Rockford | IL | Chemical Manufacturing325991 | — | ◇ UNVERIFIED |
| RRRock Road Companies INC | Rockford | IL | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| RARockview Asphalt Plant | Rockford | IL | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| RRRogers Ready-mix & Materials INC | Rockford | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| SMSiffron Mfg & Service | Rockford | IL | Fabricated Metal Product Manufacturing332618 | — | ◇ UNVERIFIED |
| SESpecial-t Engraving & Gifts | Rockford | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
