| MLMisty Laforce | Riverside | CA | Food Manufacturing311811 | — | ◇ UNVERIFIED |
 Modular Structures Int'l INC | Riverside | CA | Wood Product Manufacturing321992 | — | ◇ UNVERIFIED |
| MDMolded Devices | Riverside | CA | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| MTMorgan Truck Body LLC | Riverside | CA | Transportation Equipment Manufacturing336211 | — | ◇ UNVERIFIED |
| MTMorgan Truckbody LLC | Riverside | CA | Transportation Equipment Manufacturing336211 | — | ◇ UNVERIFIED |
| MFMorrissey's Furn Rep & Ref | Riverside | CA | Furniture and Related Product Manufacturing337122 | — | ◇ UNVERIFIED |
| MNMr Nozzle INC | Riverside | CA | Furniture and Related Product Manufacturing337215 | — | ◇ UNVERIFIED |
| MIM.s.r.s., INC. | Riverside | CA | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| MRMullins Rubber Products, INC. (0857770747) | Riverside | OH | Plastics and Rubber Products Manufacturing326299 | — | ◇ UNVERIFIED |
| NCNew Cingular Wireless Pcs, At&t Mobility | Riverside | CA | Electrical Equipment, Appliance & Component Manufacturing335314 | — | ◇ UNVERIFIED |
| NINexcoil INC | Riverside | CA | Fabricated Metal Product Manufacturing332322 | — | ◇ UNVERIFIED |
| NBNothing Bundt Cakes | Riverside | CA | Food Manufacturing311811 | — | ◇ UNVERIFIED |
| NDNotre Dame High School | Riverside | CA | Transportation Equipment Manufacturing336350 | — | ◇ UNVERIFIED |
| NHNursing Home Services INC. | Riverside | RI | Machinery Manufacturing333312 | — | ◇ UNVERIFIED |
| OSOdonnell Solutions LLC | Riverside | CA | Textile Product Mills314999 | — | ◇ UNVERIFIED |
| OPOdyssey Power CORP | Riverside | CA | Electrical Equipment, Appliance & Component Manufacturing335312 | — | ◇ UNVERIFIED |
| OGOlasaba Grinding Dba Riverside Grinding | Riverside | CA | Transportation Equipment Manufacturing336390 | — | ◇ UNVERIFIED |
| OBOld Bridge Metal Fabrication Inc. | Riverside | CA | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| OPOmf Performance Products INC | Riverside | CA | Fabricated Metal Product Manufacturing332117 | — | ◇ UNVERIFIED |
| OEOrange Ev LLC | Riverside | MO | Transportation Equipment Manufacturing336111 | — | ◇ UNVERIFIED |
| OBOrco Block CO INC | Riverside | CA | Nonmetallic Mineral Product Manufacturing327331 | — | ◇ UNVERIFIED |
| OUOrw USA INC Dba 4 Wheel Parts | Riverside | CA | Transportation Equipment Manufacturing336390 | — | ◇ UNVERIFIED |
| OEOtis Elevator Company | Riverside | CA | Machinery Manufacturing333921 | — | ◇ UNVERIFIED |
| OTOwen Trailers INC | Riverside | CA | Transportation Equipment Manufacturing336212 | — | ◇ UNVERIFIED |
| PSPacific Structures | Riverside | CA | Nonmetallic Mineral Product Manufacturing327331 | — | ◇ UNVERIFIED |
| PPPact Pharma INC | Riverside | CA | Chemical Manufacturing325180 | — | ◇ UNVERIFIED |
| PIParadigm Ironworks | Riverside | CA | Fabricated Metal Product Manufacturing332111 | — | ◇ UNVERIFIED |
| PCParty City CORP Dba Halloween City Store #8027 | Riverside | CA | Miscellaneous Manufacturing339993 | — | ◇ UNVERIFIED |
| PAPhoenix Alloy Solutions, LLC | Riverside | CA | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| PIPierco INC. | Riverside | CA | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| PIPinpoint, INC | Riverside | CA | Machinery Manufacturing333995 | — | ◇ UNVERIFIED |
| PIPolaris Industries Dba Pro Armor | Riverside | CA | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| PIPolaris Industries INC Dba Walker Evans Enterprises | Riverside | CA | Transportation Equipment Manufacturing336390 | — | ◇ UNVERIFIED |
| PTPost Tension Solutions West LLC | Riverside | CA | Furniture and Related Product Manufacturing337215 | — | ◇ UNVERIFIED |
| PIPre-cal INC Dba Ginger Precast Designs | Riverside | CA | Nonmetallic Mineral Product Manufacturing327331 | — | ◇ UNVERIFIED |
| PEPress Enterprise Fleet the | Riverside | CA | Printing and Related Support Activities323111 | — | ◇ UNVERIFIED |
| PRPrime Refrigeration Systems | Riverside | CA | Machinery Manufacturing333415 | — | ◇ UNVERIFIED |
| PLProtobox Limited Liability Company | Riverside | OH | Computer and Electronic Product Manufacturing334419 | — | ◇ UNVERIFIED |
| QCQuail Creek Apartments | Riverside | CA | Transportation Equipment Manufacturing336350 | — | ◇ UNVERIFIED |
| QSQuality Shutters INC | Riverside | CA | Wood Product Manufacturing321911 | — | ◇ UNVERIFIED |
| QPQuiroz Precision Machining | Riverside | CA | Machinery Manufacturing333111 | — | ◇ UNVERIFIED |
| RIRcs Industries INC | Riverside | CA | Fabricated Metal Product Manufacturing332313 | — | ◇ UNVERIFIED |
| RSRed Star Logistics, Inc. | Riverside | CA | Wood Product Manufacturing321920 | — | ◇ UNVERIFIED |
| REReisner Enterprises INC. Dba Westcorp Engineering | Riverside | CA | Furniture and Related Product Manufacturing337215 | — | ◇ UNVERIFIED |
| RCRequena CORP Dba Al's Machine & Auto Repair | Riverside | CA | Transportation Equipment Manufacturing336311 | — | ◇ UNVERIFIED |
| RCRichartz, Christopher | Riverside | CA | Transportation Equipment Manufacturing336350 | — | ◇ UNVERIFIED |
| RCRiver City Services LLC | Riverside | CA | Machinery Manufacturing333924 | — | ◇ UNVERIFIED |
| RCRiver City Services LLC | Riverside | CA | Machinery Manufacturing333924 | — | ◇ UNVERIFIED |
| RCRiverside Cement CO | Riverside | CA | Nonmetallic Mineral Product Manufacturing327124 | — | ◇ UNVERIFIED |
| RPRiverside Public Utilities | Riverside | CA | Machinery Manufacturing333613 | — | ◇ UNVERIFIED |
