 | contra costa electric, inc. | martinez, california, united states | 202 | construction | 1946 | |
 | Hello Robot Inc | martinez, california, united states | 17 | research services | 2017 | |
 | Dawson Electric | Martinez, california, united states | 39 | construction | - | |
 | YWCA of Contra Costa/Sacramento | martinez, california, united states | 8 | non-profit organizations | 1932 | |
 | Construction Loan Monitoring Group Inc. | Martinez, california, united states | 4 | banking | 2001 | |
 | Elegant Occasions Catering | Martinez, california, united states | 1 | food and beverages | - | |
 | JBS Promotions | Martinez, california, united states | 2 | marketing and advertising | 2000 | |
 | Cal West Mashy Company, Inc. | Martinez, california, united states | 4 | machinery | 1973 | |
| Adair Automotive Inc | Martinez, california, united states | - | automotive | - | |
 | Wobo Inc | Martinez, california, united states | - | - | 2004 | |
 | MoonSong | Martinez, california, united states | 2 | health, wellness and fitness | - | |
| Acme Fill Corp | Martinez, california, united states | 4 | construction | - | |
 | Ace Truckbox Center | Martinez, california, united states | 3 | restaurants | - | |
 | D&d Entertainment | Martinez, california, united states | - | - | - | |
 | Lindsley Lighting | martinez, california, united states | 6 | appliances, electrical, and electronics manufacturing | - | |
 | Skinner Group | Martinez, california, united states | 3 | health, wellness and fitness | 2015 | |
| ROBERT ABBOTT TAX SERVICES | Martinez, california, united states | 1 | financial services | - | |
 | Tech Tamer Consulting | Martinez, california, united states | - | information technology and services | - | |
 | Ampelon Development Group | Martinez, california, united states | - | real estate | 2004 | |
| LEMONGRASS BISTRO LLC | Martinez, california, united states | - | restaurants | - | |
