| RPRicoh Printing Systems America INC | Simi Valley, CA | Computer and Electronic Product Manufacturing334111 | — | ◇ UNVERIFIED |
| RARobbins Auto Top | Oxnard, CA | Transportation Equipment Manufacturing336211 | — | ◇ UNVERIFIED |
| RRRobertson's Ready Mix | Corona, CA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| SCScientific Cutting Tools | Simi Valley, CA | Machinery Manufacturing333515 | — | ◇ UNVERIFIED |
| SDSecurity Door Controls | Camarillo, CA | Fabricated Metal Product Manufacturing332439 | — | ◇ UNVERIFIED |
| SCSemtech CORP | Newbury Park, CA | Computer and Electronic Product Manufacturing334413 | — | ◇ UNVERIFIED |
| SCSimba Calna INC. | Oxnard, CA | Printing and Related Support Activities323122 | — | ◇ UNVERIFIED |
| SCSouth Coast Area Transit | Oxnard, CA | Transportation Equipment Manufacturing336390 | — | ◇ UNVERIFIED |
| SRSpragues' Rock and Sand CO | Simi Valley, CA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| SPStainless Process Systems | Oxnard, CA | Fabricated Metal Product Manufacturing332313 | — | ◇ UNVERIFIED |
| SDStreamline Design & Silkscreen, INC. | Ventura, CA | Printing and Related Support Activities323113 | — | ◇ UNVERIFIED |
| TITechnicolor Incorporated | Camarillo, CA | Computer and Electronic Product Manufacturing334612 | — | ◇ UNVERIFIED |
| TITelair International | Oxnard, CA | Plastics and Rubber Products Manufacturing326299 | — | ◇ UNVERIFIED |
| TETeledyne Electronics | Newbury Park, CA | Computer and Electronic Product Manufacturing334000 | — | ◇ UNVERIFIED |
| TPTencate Performance Composites | Camarillo, CA | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| TCThe Coffee Bean & Tea Leaf | Camarillo, CA | Food Manufacturing311920 | — | ◇ UNVERIFIED |
| TIThibiant International INC Dba Thibiant Naturals | Newbury Park, CA | Chemical Manufacturing325620 | — | ◇ UNVERIFIED |
| TSTlc Sportswear INC | Newbury Park, CA | Printing and Related Support Activities323119 | — | ◇ UNVERIFIED |
| TTTopa Topa Brewing CO | Ventura, CA | Beverage and Tobacco Product Manufacturing312120 | — | ◇ UNVERIFIED |
| TMTrak Microwave Corporation | Thousand Oaks, CA | Computer and Electronic Product Manufacturing334419 | — | ◇ UNVERIFIED |
| TPTransco Products INC | Camarillo, CA | Computer and Electronic Product Manufacturing334419 | — | ◇ UNVERIFIED |
| TPTubed Products INC | Oxnard, CA | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| UVUni-seal Valve Company INC | Ventura, CA | Fabricated Metal Product Manufacturing332911 | — | ◇ UNVERIFIED |
| UPUnited Property Services INC | Camarillo, CA | Chemical Manufacturing325510 | — | ◇ UNVERIFIED |
| VAVirgils Auto Body | Newbury Park, CA | Primary Metal Manufacturing331419 | — | ◇ UNVERIFIED |
| VSVista Steel | Ventura, CA | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| VSVitesse Semiconductor CORP. | Camarillo, CA | Computer and Electronic Product Manufacturing334413 | — | ◇ UNVERIFIED |
| VEVortech Engineering INC | Oxnard, CA | Machinery Manufacturing333413 | — | ◇ UNVERIFIED |
| WEWestern Electronic Components CO | Oxnard, CA | Computer and Electronic Product Manufacturing334413 | — | ◇ UNVERIFIED |
| WPWestern Precooling Systems - Driscoll Facility | Oxnard, CA | Food Manufacturing311119 | — | ◇ UNVERIFIED |
Wilwood Engineering | Camarillo, CA | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| XPXtreme Performance Heat Coatings | Oxnard, CA | Plastics and Rubber Products Manufacturing326212 | — | ◇ UNVERIFIED |
| ZZpower | Camarillo, CA | Electrical Equipment, Appliance & Component Manufacturing335911 | — | ◇ UNVERIFIED |
| 006-2917445000-0 | Thousand Oaks, CA | Miscellaneous Manufacturing339112 | 100–499 | ◐ LIKELY ACTIVE |
| 1O1 Oxnard Vdc | Oxnard, CA | Transportation Equipment Manufacturing336111 | 20–99 | ◐ LIKELY ACTIVE |
| 22340Palma | Ventura, CA | Fabricated Metal Product Manufacturing332913 | 20–99 | ◐ LIKELY ACTIVE |
| 44544McGrath | Ventura, CA | Fabricated Metal Product Manufacturing332913 | 20–99 | ◐ LIKELY ACTIVE |
| AMAdvanced Motion Controls | Camarillo, CA | Electrical Equipment, Appliance & Component Manufacturing335314 | 100–499 | ◐ LIKELY ACTIVE |
| APAeon Power | Ventura, CA | Electrical Equipment, Appliance & Component Manufacturing335311 | — | ◐ LIKELY ACTIVE |
| ACAerospace Camarillo | Camarillo, CA | Fabricated Metal Product Manufacturing332912 | 100–499 | ◐ LIKELY ACTIVE |
| APAirlite Plastics Co | Oxnard, CA | Machinery Manufacturing333249 | 20–99 | ◐ LIKELY ACTIVE |
| AIAmgen Inc. (Thousand Oaks, CA) | Thousand Oaks, CA | Chemical Manufacturing325412 | 500+ | ◐ LIKELY ACTIVE |
| ARAmgen Remote Workers | Thousand Oaks, CA | Chemical Manufacturing325412 | 500+ | ◐ LIKELY ACTIVE |
| AIAndremily, INC. | Ventura, CA | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| ABAngelus Block - Oxnard | Oxnard, CA | Nonmetallic Mineral Product Manufacturing327331 | 20–99 | ◐ LIKELY ACTIVE |
| ASAnsaldos Sausage Corp. | Moorpark, CA | Food Manufacturing311612 | — | ◐ LIKELY ACTIVE |
| A1Arp - 1760 | Santa Paula, CA | Fabricated Metal Product Manufacturing332722 | 100–499 | ◐ LIKELY ACTIVE |
| A2Arp - 250 | Santa Paula, CA | Fabricated Metal Product Manufacturing332722 | 1–19 | ◐ LIKELY ACTIVE |
| A2Arp - 275 | Santa Paula, CA | Fabricated Metal Product Manufacturing332722 | 1–19 | ◐ LIKELY ACTIVE |
| AUArtisan Uprising | Simi Valley, CA | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |