| MSMycogen Seeds | Pontiac | — | ◇ UNVERIFIED |
| NENatural Enrichment Industries LLC | Sesser | — | ◇ UNVERIFIED |
| NFNatures Fynd | Chicago | — | ◇ UNVERIFIED |
| NLNcm LLC | Chicago | — | ◇ UNVERIFIED |
| NUNestle USA | Schaumburg | — | ◇ UNVERIFIED |
| NUNestle USA INC | Jacksonville | — | ◇ UNVERIFIED |
| NPNew Packing CO | Chicago | — | ◇ UNVERIFIED |
| NGNicor Gas | Des Plaines | — | ◇ UNVERIFIED |
| NBNorth Baking Company | Melrose Park | — | ◇ UNVERIFIED |
| NFNorthwestern Flavors INC | West Chicago | — | ◇ UNVERIFIED |
| NQNuestro Queso LLC | Kent | — | ◇ UNVERIFIED |
| OPOlmarc Packaging CO | Northlake | — | ◇ UNVERIFIED |
| OFOn-cor Frozen Foods, LLC | Chicago | — | ◇ UNVERIFIED |
| OFOxy-dry Food Blends INC | Addison | — | ◇ UNVERIFIED |
| PDPackaging Division Industries LLC | Northlake | — | ◇ UNVERIFIED |
| PFParco Foods LLC | Blue Island | — | ◇ UNVERIFIED |
| PBPasco Beverages INC | Chicago | — | ◇ UNVERIFIED |
| PFPeer Food Products CO | Chicago | — | ◇ UNVERIFIED |
| PHPioneer Hi-bred International INC | Litchfield | — | ◇ UNVERIFIED |
| PHPost Holdings INC | Sauget | — | ◇ UNVERIFIED |
| PPPower Packaging an Excel CO | Geneva | — | ◇ UNVERIFIED |
 Prairie Farms Dairy INC. | O Fallon | — | ◇ UNVERIFIED |
| PFPrairie Farms Dairy - Peoria, Il | Peoria | — | ◇ UNVERIFIED |
| PMPrince Minerals INC | Quincy | — | ◇ UNVERIFIED |
| PUPrinova USA | Carol Stream | — | ◇ UNVERIFIED |
| PFProgressive Food Solutions LLC | Woodridge | — | ◇ UNVERIFIED |
| QLQuality Liquid Feed INC | Lasalle | — | ◇ UNVERIFIED |
| QSQuality Snack Foods INC | Chicago | — | ◇ UNVERIFIED |
| RIReconserve INC | Hodgkins | — | ◇ UNVERIFIED |
| RPRich Products CORP | Wheeling | — | ◇ UNVERIFIED |
| RPRich Products Corporation - Crest Hill Facility | Crest Hill | — | ◇ UNVERIFIED |
| RPRich Products Corporation - Niles Facility | Niles | — | ◇ UNVERIFIED |
| RBRise Baking Company Manteno | Manteno | — | ◇ UNVERIFIED |
| RBRubschlager Baking CORP | Chicago | — | ◇ UNVERIFIED |
| RFRupari Food Services, INC. | South Holland | — | ◇ UNVERIFIED |
| RIRyder Integrated Logistics Rochelle 1 & 2 | Rochelle | — | ◇ UNVERIFIED |
| RIRytway Industries LLC | Des Plaines | — | ◇ UNVERIFIED |
| SBSchulze & Burch Biscuit CO | Chicago | — | ◇ UNVERIFIED |
| SISeptimus INC | Paris | — | ◇ UNVERIFIED |
| SGSethness Greenleaf INC | Chicago | — | ◇ UNVERIFIED |
| SPSfg/scott Petersen | Chicago | — | ◇ UNVERIFIED |
| SMSiemer Milling CO | Teutopolis | — | ◇ UNVERIFIED |
| SMSiemer Milling Company - Teutopolis Plant | Teutopolis | — | ◇ UNVERIFIED |
| SSSilvestri Sweets, INC. | Geneva | 1–19 | ◇ UNVERIFIED |
| SBSimon Brothers Bakery | Skokie | — | ◇ UNVERIFIED |
| SBSmith Brothers CO | Chicago | — | ◇ UNVERIFIED |
| SMStampede Meat, INC. | Bridgeview | — | ◇ UNVERIFIED |
| SPStewarts Private Blend Foods INC | Chicago | — | ◇ UNVERIFIED |
 Stratas Foods, LLC | Jacksonville | — | ◇ UNVERIFIED |
| SPSubco Packaging INC | West Chicago | — | ◇ UNVERIFIED |
