| CGCell Genesys Clinical Mfg | Hayward | CA | Chemical Manufacturing325412 | — | ◇ UNVERIFIED |
| CTCf & T | Hayward | CA | Nonmetallic Mineral Product Manufacturing327332 | — | ◇ UNVERIFIED |
| CRChatz Roasting Company | Hayward | CA | Food Manufacturing311920 | — | ◇ UNVERIFIED |
| CChemux | Hayward | CA | Machinery Manufacturing333998 | — | ◇ UNVERIFIED |
| CCholestech /biosite | Hayward | CA | Computer and Electronic Product Manufacturing334510 | — | ◇ UNVERIFIED |
| CSChristy Suiter | Hayward | CA | Petroleum and Coal Products Manufacturing324191 | — | ◇ UNVERIFIED |
| CSCity Service Contracting INC | Hayward | CA | Furniture and Related Product Manufacturing337127 | — | ◇ UNVERIFIED |
| CAClean Air Vehicle Test Center | Hayward | CA | Transportation Equipment Manufacturing336211 | — | ◇ UNVERIFIED |
| CPClickner & Prater Industries, | Hayward | CA | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| CNCnc Noodle Corporation | Hayward | CA | Food Manufacturing311423 | — | ◇ UNVERIFIED |
| CACoast Aluminum | Hayward | CA | Primary Metal Manufacturing331315 | — | ◇ UNVERIFIED |
| CAColored Aggregates LLC | Hayward | CA | Miscellaneous Manufacturing339113 | — | ◇ UNVERIFIED |
| COComcast of San Leandro INC | Hayward | CA | Electrical Equipment, Appliance & Component Manufacturing335312 | — | ◇ UNVERIFIED |
| CPCommercial Pattern, INC | Hayward | CA | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| CPConsolidated Printers INC | Hayward | CA | Printing and Related Support Activities323117 | — | ◇ UNVERIFIED |
| CAControl Air Enterprises LLC | Hayward | CA | Textile Mills313210 | — | ◇ UNVERIFIED |
| CCorad | Hayward | CA | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| CCCorefact CORP Dra Digital Printing | Hayward | CA | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| CICraftsman Industrial Packaging INC Dba Mp Box | Hayward | CA | Paper Manufacturing322211 | — | ◇ UNVERIFIED |
| CICref3 Industrial Parkway Owner LLC | Hayward | CA | Transportation Equipment Manufacturing336110 | — | ◇ UNVERIFIED |
| CMCrescents Meats and Catering, LLC | Hayward | WI | Food Manufacturing311612 | — | ◇ UNVERIFIED |
| CKCustom Kings LLC | Hayward | CA | Printing and Related Support Activities323113 | — | ◇ UNVERIFIED |
| CLCustom Label & Decal | Hayward | CA | Printing and Related Support Activities323111 | — | ◇ UNVERIFIED |
| DMDba Manheim San Francisco Bay | Hayward | CA | Miscellaneous Manufacturing339113 | — | ◇ UNVERIFIED |
 Delphon Industries LLC Dba Gel-pak | Hayward | CA | Printing and Related Support Activities323111 | — | ◇ UNVERIFIED |
| DSDel Secco Diamond Core & Saw INC | Hayward | CA | Machinery Manufacturing333991 | — | ◇ UNVERIFIED |
| D2Depot 2 | Hayward | CA | Petroleum and Coal Products Manufacturing324191 | — | ◇ UNVERIFIED |
| DDermody | Hayward | CA | Food Manufacturing311520 | — | ◇ UNVERIFIED |
| DADie and Tool Products, INC. | Hayward | CA | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| DCDielectric Coating Industries INC | Hayward | CA | Primary Metal Manufacturing331315 | — | ◇ UNVERIFIED |
| DJD & J International, INC. | Hayward | CA | Plastics and Rubber Products Manufacturing326111 | — | ◇ UNVERIFIED |
| DPDomino's Pizza INC | Hayward | CA | Food Manufacturing311822 | — | ◇ UNVERIFIED |
| DODubs One West LLC | Hayward | CA | Food Manufacturing311812 | — | ◇ UNVERIFIED |
| DMDutra Materials/san Rafael Roc | Hayward | CA | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| DWD W Nicholson Corporation | Hayward | CA | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |
| EFEco Friendly Finishes | Hayward | CA | Furniture and Related Product Manufacturing337110 | — | ◇ UNVERIFIED |
| ETEconomy Trucking Services INC | Hayward | CA | Nonmetallic Mineral Product Manufacturing327999 | — | ◇ UNVERIFIED |
| ESEdgebanding Services, INC. | Hayward | CA | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| EIEdge Innovations | Hayward | CA | Computer and Electronic Product Manufacturing334614 | — | ◇ UNVERIFIED |
| ETEkc Technology, INC. | Hayward | CA | Computer and Electronic Product Manufacturing334413 | — | ◇ UNVERIFIED |
| ERElectro Rent/rush Computer | Hayward | CA | Computer and Electronic Product Manufacturing334111 | — | ◇ UNVERIFIED |
| EMEmd Millipore Corporation | Hayward | CA | Computer and Electronic Product Manufacturing334516 | — | ◇ UNVERIFIED |
| EOEncore Oils LLC Dba Sequential | Hayward | CA | Food Manufacturing311225 | — | ◇ UNVERIFIED |
| EIEncyclogen INC | Hayward | CA | Chemical Manufacturing325411 | — | ◇ UNVERIFIED |
| EIEndiatx INC | Hayward | CA | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| FIFante INC Dba Casa Sanchez Foods | Hayward | CA | Food Manufacturing311919 | — | ◇ UNVERIFIED |
| FEFarasis Energy USA INC | Hayward | CA | Electrical Equipment, Appliance & Component Manufacturing335911 | — | ◇ UNVERIFIED |
| FIFarben INC | Hayward | CA | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| FCFarwest Corrosion Control | Hayward | CA | Fabricated Metal Product Manufacturing332510 | — | ◇ UNVERIFIED |
| FBFast Banners and Signs LLC | Hayward | CA | Miscellaneous Manufacturing339950 | — | ◇ UNVERIFIED |
