| SSdmideas | Oroville, CA | Computer and Electronic Product Manufacturing334412 | — | ◇ UNVERIFIED |
| SSel-tech | Chico, CA | Transportation Equipment Manufacturing336411 | — | ◇ UNVERIFIED |
| SSel-tech | Chico, CA | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| SFSetzer Forest Products, INC. | Oroville, CA | Wood Product Manufacturing321113 | — | ◇ UNVERIFIED |
| SCSierra Custom Craftworks LLC | Magalia, CA | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| SLSierra Log Homes | Chico, CA | Wood Product Manufacturing321992 | — | ◇ UNVERIFIED |
| SVSierra Valley Furniture | Oroville, CA | Furniture and Related Product Manufacturing337122 | — | ◇ UNVERIFIED |
| SFSligar Farms INC | Biggs, CA | Machinery Manufacturing333922 | — | ◇ UNVERIFIED |
| SRSohnrey Ranches INC | Durham, CA | Machinery Manufacturing333922 | — | ◇ UNVERIFIED |
| SLSpectra-physics Lasers, INC | Oroville, CA | Food Manufacturing311119 | — | ◇ UNVERIFIED |
| SAStainless Aesthetics Inc. | Paradise, CA | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| SPStapleton Packing Company | Gridley, CA | Food Manufacturing311421 | — | ◇ UNVERIFIED |
| SSStapleton Spence | Gridley, CA | Food Manufacturing311423 | — | ◇ UNVERIFIED |
| SCSteelhead Counters, INC. | Chico, CA | Furniture and Related Product Manufacturing337110 | — | ◇ UNVERIFIED |
| SOSundial Orchards INC | Gridley, CA | Food Manufacturing311911 | — | ◇ UNVERIFIED |
| TETed's Electric | Chico, CA | Machinery Manufacturing333248 | — | ◇ UNVERIFIED |
| TTerrill's | Chico, CA | Machinery Manufacturing333248 | — | ◇ UNVERIFIED |
| TWThomas Welding & Machine | Chico, CA | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| TVTimothy VanderHeiden | Chico, CA | Plastics and Rubber Products Manufacturing326299 | — | ◇ UNVERIFIED |
| TATom and Patricia Gaines Individually and | Chico, CA | Textile Product Mills314910 | — | ◇ UNVERIFIED |
| TRTrinity River Lumber Company-log Storage & Reload Facility | Oroville, CA | Wood Product Manufacturing321999 | — | ◇ UNVERIFIED |
 Universal Plastics INC. | Chico, CA | Plastics and Rubber Products Manufacturing326121 | — | ◇ UNVERIFIED |
| UUUsda Usfs R05 Air Attack Base | Chico, CA | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| UDUstc Dba Dynaplug | Chico, CA | Transportation Equipment Manufacturing336991 | — | ◇ UNVERIFIED |
| WFWaterbury Farms | Gridley, CA | Machinery Manufacturing333922 | — | ◇ UNVERIFIED |
| WBWax Box Firelog Corporation | Gridley, CA | Paper Manufacturing322299 | — | ◇ UNVERIFIED |
| WMWeiss Mcnair, LLC | Chico, CA | Machinery Manufacturing333111 | — | ◇ UNVERIFIED |
| WMWeiss Mcnair, LLC | Chico, CA | Machinery Manufacturing333111 | — | ◇ UNVERIFIED |
| WMWeiss Mcnair Nut Harvesting Equipment | Chico, CA | Machinery Manufacturing333111 | — | ◇ UNVERIFIED |
| WWWestern Woods | Chico, CA | Food Manufacturing311119 | — | ◇ UNVERIFIED |
| WWWestern Woods, INC | Chico, CA | Wood Product Manufacturing321999 | — | ◇ UNVERIFIED |
| WHWestgate Hardwoods | Chico, CA | Wood Product Manufacturing321912 | — | ◇ UNVERIFIED |
| WHWestgate Hardwoods, INC | Durham, CA | Wood Product Manufacturing321912 | — | ◇ UNVERIFIED |
| WHWestgate Hardwoods, INC | Chico, CA | Wood Product Manufacturing321912 | — | ◇ UNVERIFIED |
| WWWesty World | Chico, CA | Transportation Equipment Manufacturing336211 | — | ◇ UNVERIFIED |
| WMWizard Manufacturing | Chico, CA | Machinery Manufacturing333111 | — | ◇ UNVERIFIED |
| WFWood-ply Forest Products | Chico, CA | Wood Product Manufacturing321113 | — | ◇ UNVERIFIED |
| WTWorld Telecom & Surveillance | Chico, CA | Computer and Electronic Product Manufacturing334419 | — | ◇ UNVERIFIED |
