| CIConstruction Innovations | Sacramento | — | ◇ UNVERIFIED |
| CGConte's Generator Service | Seaside | — | ◇ UNVERIFIED |
| CAContinental Auto Repair | Lemoore | — | ◇ UNVERIFIED |
| CContinuum | Milpitas | — | ◇ UNVERIFIED |
| CIContract Illumination, INC | Orange | — | ◇ UNVERIFIED |
| CLCool Lumens | Santa Cruz | — | ◇ UNVERIFIED |
| CBCooper Bussman | Pleasanton | — | ◇ UNVERIFIED |
| CLCooper Lighting, INC | Richmond | — | ◇ UNVERIFIED |
| CSCorner Stone Staffing | Merced | — | ◇ UNVERIFIED |
| COCounty of Marin Mera Pt Reyes | Point Reyes Station | — | ◇ UNVERIFIED |
| COCounty of Orange Sheriff Communications | Silverado | — | ◇ UNVERIFIED |
| COCounty of San Diego - Department of Parks and Recreation | Oceanside | — | ◇ UNVERIFIED |
| CECovanta Energy Corporation | Long Beach | — | ◇ UNVERIFIED |
| CLCraftsman Lighting Designs CO | La Puente | — | ◇ UNVERIFIED |
| CECritical Energy | Hawthorne | — | ◇ UNVERIFIED |
| CPCritical Power Products & Services | Roseville | — | ◇ UNVERIFIED |
| CBCt Brayton & Sons, INC | Tracy | — | ◇ UNVERIFIED |
| CCCtc Cable Corporation | Irvine | — | ◇ UNVERIFIED |
| CGCtc Global Corporation | Irvine | — | ◇ UNVERIFIED |
| CICTT Inc. | San Jose | — | ◇ UNVERIFIED |
| CCulligan | Lindsay | — | ◇ UNVERIFIED |
| CWCurrent Ways | Simi Valley | — | ◇ UNVERIFIED |
 Custom Control Sensors INC | Chatsworth | — | ◇ UNVERIFIED |
| CCCustom Cooler INC | Mira Loma | — | ◇ UNVERIFIED |
| DLDadco LLC | Sun Valley | — | ◇ UNVERIFIED |
| DDDagmar Design | Los Angeles | — | ◇ UNVERIFIED |
| DCDana Creath Designs INC | Costa Mesa | — | ◇ UNVERIFIED |
 Datatronics, Romoland, INC. | Romoland | — | ◇ UNVERIFIED |
| DCDavid Copello CO | Burlingame | — | ◇ UNVERIFIED |
| DIDavior Ind INC | Maywood | — | ◇ UNVERIFIED |
| DCDavis Cell Phone Repair | Davis | — | ◇ UNVERIFIED |
| DTDaystar Technologies | Santa Clara | — | ◇ UNVERIFIED |
| DDD & D Electric Motor | Visalia | — | ◇ UNVERIFIED |
 Deep Ocean Engineering, INC. | San Jose | — | ◇ UNVERIFIED |
| DLDe La Torre Auto Repair | Fresno | — | ◇ UNVERIFIED |
| DPDelta Power, INC | Santa Ana | — | ◇ UNVERIFIED |
| DSDelta Star INC | San Carlos | — | ◇ UNVERIFIED |
| DEDemaria Electric Motor Services INC | Paramount | — | ◇ UNVERIFIED |
| DTDharma Trading CO. | San Rafael | — | ◇ UNVERIFIED |
| DGDiesel Generator Srvs INC | San Dimas | — | ◇ UNVERIFIED |
| DMDiesel Marine Electric INC | San Leandro | — | ◇ UNVERIFIED |
| DLDigital Light Sources LLC | Simi Valley | — | ◇ UNVERIFIED |
 Digital Prototype Systems INC Dba Dps Telecom | Fresno | — | ◇ UNVERIFIED |
| DDDixie Diesel & Electric INC | El Monte | — | ◇ UNVERIFIED |
| DEDom's Electric | Merced | — | ◇ UNVERIFIED |
| DEDoms Electric Motor Shop | Merced | — | ◇ UNVERIFIED |
| DCDon Celillo Electric CO. | Hanford | — | ◇ UNVERIFIED |
| DEDouglas Electronics INC | San Leandro | — | ◇ UNVERIFIED |
| DPDowntown Properties | Santa Clara | — | ◇ UNVERIFIED |
| DPDowntown Properties | Cupertino | — | ◇ UNVERIFIED |
