| RIRf Industries | San Diego | — | ◇ UNVERIFIED |
 R&f Products | Carlsbad | — | ◇ UNVERIFIED |
| RWRock West Composites | San Diego | — | ◇ UNVERIFIED |
| RIRohr Inc, a Utc Aerospace Systems Company | Chula Vista | — | ◇ UNVERIFIED |
| RBRosewell Biotechnologies INC | San Diego | — | ◇ UNVERIFIED |
 Rugged Systems INC Dba Core Systems | Poway | — | ◇ UNVERIFIED |
| SISabia, Incorporated | San Diego | — | ◇ UNVERIFIED |
| SISabia, Incorporated | San Diego | — | ◇ UNVERIFIED |
| SASage Analytical Lab LLC | San Diego | — | ◇ UNVERIFIED |
| SSSage Scientific LLC Dba Neurophotometrics LLC | San Diego | — | ◇ UNVERIFIED |
| SSSamsung Semiconductor INC | San Diego | — | ◇ UNVERIFIED |
| SISamtec INC | Carlsbad | — | ◇ UNVERIFIED |
| SASandel Avionics INC | Vista | — | ◇ UNVERIFIED |
| SDSan Diego County District Attorney's Office | San Diego | — | ◇ UNVERIFIED |
| SDSan Diego Inspire 1 LLC | San Diego | — | ◇ UNVERIFIED |
| SMSanyo Manufacturing | San Diego | — | ◇ UNVERIFIED |
| SSScianalytical Strategies INC | La Jolla | — | ◇ UNVERIFIED |
| SISemiconbio INC | San Diego | — | ◇ UNVERIFIED |
| STSensata Technologies INC / Bei NA LLC | Vista | — | ◇ UNVERIFIED |
| SSShimadzu Scientific Instruments Sca Region | Carlsbad | — | ◇ UNVERIFIED |
| SLSienna Labs Dba Sienna Labs INC | San Diego | — | ◇ UNVERIFIED |
| SASikorsky Aircraft Corporation | San Diego | — | ◇ UNVERIFIED |
| SLSimplexgrinnell LP | San Diego | — | ◇ UNVERIFIED |
| SUSkf USA INC. | San Diego | — | ◇ UNVERIFIED |
| SDSmiths Detection | San Diego | — | ◇ UNVERIFIED |
| SSolhome | Escondido | — | ◇ UNVERIFIED |
| SESony Electronics INC | San Diego | — | ◇ UNVERIFIED |
| SSSouthwest Signal Service INC | Santee | — | ◇ UNVERIFIED |
| SMSpace Micro INC | San Diego | — | ◇ UNVERIFIED |
| SGSpatial Genomics INC | San Diego | — | ◇ UNVERIFIED |
| SPSundstrand Power Systems | San Diego | — | ◇ UNVERIFIED |
| S1Sv 166-16 Woodson Mtn | Ramona | — | ◇ UNVERIFIED |
| SMSwarco Mccain INC | San Diego | — | ◇ UNVERIFIED |
| SBSyntron Bioresearch INC | Carlsbad | — | ◇ UNVERIFIED |
| TCTe Connectivity | Oceanside | — | ◇ UNVERIFIED |
| TSTeledyne Seabotix Incorporated | San Diego | — | ◇ UNVERIFIED |
| TCThe Cardenas Family Trust November 7, 2001 | San Diego | — | ◇ UNVERIFIED |
| TRThermofisher Rsd | San Diego | — | ◇ UNVERIFIED |
| TETitan Electronics | San Diego | — | ◇ UNVERIFIED |
| TPTtm Printed Circuit Group INC | San Diego | — | ◇ UNVERIFIED |
 Unchained Labs | San Diego | — | ◇ UNVERIFIED |
| VSVanguard Space Technologies INC | San Diego | — | ◇ UNVERIFIED |
| VMVarian Medical Systems | San Diego | — | ◇ UNVERIFIED |
| VEVas Engineering INC | San Diego | — | ◇ UNVERIFIED |
| VIViasat INC | Carlsbad | — | ◇ UNVERIFIED |
| VIViasat, INC. | Carlsbad | — | ◇ UNVERIFIED |
 Videotel, Inc. | Chula Vista | — | ◇ UNVERIFIED |
| Videotel, Inc. | Chula Vista | — | ◇ UNVERIFIED |
| VSVision Systems INC | Santee | — | ◇ UNVERIFIED |
| VAVrom Automation | San Diego | — | ◇ UNVERIFIED |
