| STSirius Therapeutics INC | San Diego | CA | Chemical Manufacturing325411 | — | ◇ UNVERIFIED |
| SUSkf USA INC. | San Diego | CA | Computer and Electronic Product Manufacturing334513 | — | ◇ UNVERIFIED |
| SASkinit Acquisition LLC | San Diego | CA | Printing and Related Support Activities323119 | — | ◇ UNVERIFIED |
| SISmithcorp, Inc | San Diego | CA | Paper Manufacturing322299 | — | ◇ UNVERIFIED |
| SDSmiths Detection | San Diego | CA | Computer and Electronic Product Manufacturing334517 | — | ◇ UNVERIFIED |
| SISmiths Industrial Aerospace Signal Proce | San Diego | CA | Transportation Equipment Manufacturing336413 | — | ◇ UNVERIFIED |
| SBSms Biotech | San Diego | CA | Chemical Manufacturing325414 | — | ◇ UNVERIFIED |
| SCSocietal Cdmo San Diego, LLC | San Diego | CA | Chemical Manufacturing325414 | — | ◇ UNVERIFIED |
| SDSolid Dental Design Laboratory | San Diego | CA | Miscellaneous Manufacturing339116 | — | ◇ UNVERIFIED |
| SPSorrento Print & Marketing Inc. | San Diego | CA | Printing and Related Support Activities323111 | — | ◇ UNVERIFIED |
| SLSotaques LLC | San Diego | CA | Beverage and Tobacco Product Manufacturing312140 | — | ◇ UNVERIFIED |
| SBSouth Bay Sand Blasting and Tank Cleaning, INC | San Diego | CA | Transportation Equipment Manufacturing336611 | — | ◇ UNVERIFIED |
| SBSouth Bay Sand Blasting & Tank Cleaning INC | San Diego | CA | Transportation Equipment Manufacturing336611 | — | ◇ UNVERIFIED |
| SBSouth Bay Sandblasting & Tank Cleaning, INC. | San Diego | CA | Transportation Equipment Manufacturing336612 | — | ◇ UNVERIFIED |
| SCSouth Coast Commercial | San Diego | CA | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| SESouthland Envelope | San Diego | CA | Paper Manufacturing322230 | — | ◇ UNVERIFIED |
Southwest Mobile Storage INC | San Diego | CA | Fabricated Metal Product Manufacturing332311 | — | ◇ UNVERIFIED |
| SGSpatial Genomics INC | San Diego | CA | Computer and Electronic Product Manufacturing334516 | — | ◇ UNVERIFIED |
Specialized Elevator CORP | San Diego | CA | Machinery Manufacturing333921 | — | ◇ UNVERIFIED |
Specialized Elevator Svcs | San Diego | CA | Machinery Manufacturing333921 | — | ◇ UNVERIFIED |
| SMSpecialty Manufacturing INC | San Diego | CA | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| SBSpinnaker Biosciences INC | San Diego | CA | Chemical Manufacturing325414 | — | ◇ UNVERIFIED |
| SWSpracklen Woodworks INC | San Diego | CA | Furniture and Related Product Manufacturing337110 | — | ◇ UNVERIFIED |
| SUSrm Urban | San Diego | CA | Transportation Equipment Manufacturing336350 | — | ◇ UNVERIFIED |
| STSrt Therapeutics INC | San Diego | CA | Chemical Manufacturing325412 | — | ◇ UNVERIFIED |
| SIStaineraser INC | San Diego | CA | Miscellaneous Manufacturing339932 | — | ◇ UNVERIFIED |
| SPSta Pharmaceutical US LLC | San Diego | CA | Chemical Manufacturing325412 | — | ◇ UNVERIFIED |
| SYStone Yard | San Diego | CA | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| SPSt. Paul's Manor | San Diego | CA | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |
| SSStrip Shop the | San Diego | CA | Furniture and Related Product Manufacturing337215 | — | ◇ UNVERIFIED |
| SLSuja Life, LLC | San Diego | CA | Food Manufacturing311421 | — | ◇ UNVERIFIED |
| SPSundstrand Power Systems | San Diego | CA | Computer and Electronic Product Manufacturing334511 | — | ◇ UNVERIFIED |
| SCSunny Cnc Machining INC | San Diego | CA | Furniture and Related Product Manufacturing337215 | — | ◇ UNVERIFIED |
| SRSuperior Ready Mix Concrete LP | San Diego | CA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| SSupplypro | San Diego | CA | Furniture and Related Product Manufacturing337127 | — | ◇ UNVERIFIED |
| SSSurgalign Spine Technologies INC | San Diego | CA | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| SMSwarco Mccain INC | San Diego | CA | Computer and Electronic Product Manufacturing334290 | — | ◇ UNVERIFIED |
| SRSweet Revenge Bakery | San Diego | CA | Food Manufacturing311811 | — | ◇ UNVERIFIED |
| SHSwisher Hygiene | San Diego | CA | Chemical Manufacturing325611 | — | ◇ UNVERIFIED |
| TLTami Lozier | San Diego | CA | Machinery Manufacturing333244 | — | ◇ UNVERIFIED |
| TDTandem Diabetes Care | San Diego | CA | Miscellaneous Manufacturing339113 | — | ◇ UNVERIFIED |
| TDTandem Diabetes Care INC | San Diego | CA | Miscellaneous Manufacturing339113 | — | ◇ UNVERIFIED |
| TLTangiers, LTD | San Diego | CA | Beverage and Tobacco Product Manufacturing312230 | — | ◇ UNVERIFIED |
| TDTaylor Dykema Mfg CO | San Diego | CA | Furniture and Related Product Manufacturing337215 | — | ◇ UNVERIFIED |
| TMTb Milano Apartments, LLC | San Diego | CA | Transportation Equipment Manufacturing336350 | — | ◇ UNVERIFIED |
| TPTeam Phun LLC | San Diego | CA | Apparel Manufacturing315990 | — | ◇ UNVERIFIED |
| TGTecate Group | San Diego | CA | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| TSTeledyne Seabotix Incorporated | San Diego | CA | Computer and Electronic Product Manufacturing334511 | — | ◇ UNVERIFIED |
| TSTem Systems INC | San Diego | CA | Miscellaneous Manufacturing339112 | — | ◇ UNVERIFIED |
| TJThatch Jewelry | San Diego | CA | Miscellaneous Manufacturing339910 | — | ◇ UNVERIFIED |