| Business | Phone |
| Safeway Supply Inc 2800 Ygnacio Valley Rd, Walnut Creek 94598 | (925) 944-4000 |
| Vodafone Group 2999 Oak Rd, Walnut Creek 94597 | (925) 210-3900 |
| Vmg 1207 Arroyo Way, Walnut Creek 94596 | (925) 932-6254 |
| Webcraft Direct Marketing 1916 Via Appia, Walnut Creek 94598 | (925) 935-3134 |
| Multivision Productions 1547 Third Avenue, Walnut Creek 94597 | (925) 935-9998 |