| SSolectron-california | Fremont | CA | Computer and Electronic Product Manufacturing334419 | — | ◇ UNVERIFIED |
 Sonic Manufacturing Technologies | Fremont | CA | Computer and Electronic Product Manufacturing334412 | — | ◇ UNVERIFIED |
| SBSouth Bay Door | Fremont | CA | Furniture and Related Product Manufacturing337110 | — | ◇ UNVERIFIED |
| SBSouth Bay Turn Equipment & Rental | Fremont | CA | Machinery Manufacturing333112 | — | ◇ UNVERIFIED |
| SMSouthwark Metal Manufacturing CO. | Fremont | NE | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |
| SCSparqtron CORP | Fremont | CA | Computer and Electronic Product Manufacturing334412 | — | ◇ UNVERIFIED |
 Spectrum Litho | Fremont | CA | Printing and Related Support Activities323111 | — | ◇ UNVERIFIED |
| SLSpectrum Lithograph | Fremont | CA | Printing and Related Support Activities323111 | — | ◇ UNVERIFIED |
| SESpinal Elements | Fremont | CA | Machinery Manufacturing333415 | — | ◇ UNVERIFIED |
| SMSpin Memory INC | Fremont | CA | Computer and Electronic Product Manufacturing334413 | — | ◇ UNVERIFIED |
| SMSpire Manufaturing INC | Fremont | CA | Computer and Electronic Product Manufacturing334413 | — | ◇ UNVERIFIED |
| SCStats Chippac INC | Fremont | CA | Computer and Electronic Product Manufacturing334413 | — | ◇ UNVERIFIED |
| SEStorage Express INC | Fremont | CA | Fabricated Metal Product Manufacturing332439 | — | ◇ UNVERIFIED |
| STSuba Technology INC | Fremont | CA | Computer and Electronic Product Manufacturing334515 | — | ◇ UNVERIFIED |
| SCSuju's Coffee & Tea | Fremont | CA | Food Manufacturing311920 | — | ◇ UNVERIFIED |
| SSSumitomo Sitix Silicon, Inc., Fremont Div. | Fremont | CA | Computer and Electronic Product Manufacturing334413 | — | ◇ UNVERIFIED |
| SISunedison INC. | Fremont | CA | Transportation Equipment Manufacturing336322 | — | ◇ UNVERIFIED |
| SDSunlight Decor Corporation | Fremont | CA | Furniture and Related Product Manufacturing337110 | — | ◇ UNVERIFIED |
| SOSun Office Furniture | Fremont | CA | Furniture and Related Product Manufacturing337211 | — | ◇ UNVERIFIED |
| SMSuper Micro Computer, INC. | Fremont | CA | Computer and Electronic Product Manufacturing334111 | — | ◇ UNVERIFIED |
| SCSurgx CORP | Fremont | CA | Printing and Related Support Activities323113 | — | ◇ UNVERIFIED |
| STSurvivors Trust | Fremont | CA | Paper Manufacturing322212 | — | ◇ UNVERIFIED |
| TFTactical Fabs INC | Fremont | CA | Computer and Electronic Product Manufacturing334413 | — | ◇ UNVERIFIED |
| TTechlink | Fremont | CA | Computer and Electronic Product Manufacturing334111 | — | ◇ UNVERIFIED |
| TCTe Connectivity | Fremont | CA | Computer and Electronic Product Manufacturing334610 | — | ◇ UNVERIFIED |
| TITelesis Industrial Laser Center | Fremont | CA | Electrical Equipment, Appliance & Component Manufacturing335999 | — | ◇ UNVERIFIED |
| T2Tesla - 2875 Prune Ave | Fremont | CA | Transportation Equipment Manufacturing336992 | — | ◇ UNVERIFIED |
| TITesla INC | Fremont | CA | Transportation Equipment Manufacturing336112 | — | ◇ UNVERIFIED |
| TITesla, INC. | Fremont | CA | Transportation Equipment Manufacturing336390 | — | ◇ UNVERIFIED |
| TITesla, INC. | Fremont | CA | Transportation Equipment Manufacturing336111 | — | ◇ UNVERIFIED |
| TMTesla Motors INC | Fremont | CA | Transportation Equipment Manufacturing336110 | — | ◇ UNVERIFIED |
| TCThe Chemours Company | Fremont | CA | Chemical Manufacturing325180 | — | ◇ UNVERIFIED |
| TFThermo Fisher Scientific | Fremont | CA | Chemical Manufacturing325412 | — | ◇ UNVERIFIED |
| TTTooling Technology, LLC | Fremont | OH | Machinery Manufacturing333249 | — | ◇ UNVERIFIED |
| TETooltek Engineering Corporation | Fremont | CA | Computer and Electronic Product Manufacturing334413 | — | ◇ UNVERIFIED |
| TDTop Dawg Modular Service | Fremont | CA | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
 Tournesol Siteworks | Fremont | CA | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| TTTranscend Technology INC | Fremont | CA | Nonmetallic Mineral Product Manufacturing327212 | — | ◇ UNVERIFIED |
| TCTri City Cabinet | Fremont | CA | Furniture and Related Product Manufacturing337110 | — | ◇ UNVERIFIED |
| TWTrulite Wsg LLC | Fremont | CA | Nonmetallic Mineral Product Manufacturing327215 | — | ◇ UNVERIFIED |
| UFUct Fremont | Fremont | CA | Furniture and Related Product Manufacturing337215 | — | ◇ UNVERIFIED |
| UGUltima Genomics | Fremont | CA | Computer and Electronic Product Manufacturing334516 | — | ◇ UNVERIFIED |
| UIUni-fab Industries INC | Fremont | CA | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| UIUnigen INC | Fremont | CA | Computer and Electronic Product Manufacturing334118 | — | ◇ UNVERIFIED |
 United States Gypsum | Fremont | CA | Nonmetallic Mineral Product Manufacturing327420 | — | ◇ UNVERIFIED |
| UUnitek | Fremont | CA | Computer and Electronic Product Manufacturing334220 | — | ◇ UNVERIFIED |
| UIUnitek, INC | Fremont | CA | Computer and Electronic Product Manufacturing334418 | — | ◇ UNVERIFIED |
| UIUniversal Industrial Finishing | Fremont | CA | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| UUnknown | Fremont | CA | Fabricated Metal Product Manufacturing332439 | — | ◇ UNVERIFIED |
| VVanguard | Fremont | CA | Furniture and Related Product Manufacturing337215 | — | ◇ UNVERIFIED |
