| Business | Phone |
| Common Sense Concord 94520 | (925) 689-9556 |
| A Red Hot Web 3459 Tanager Cir, Concord 94520 | (925) 864-8400 |
| Amiweb Development Corp 1170 Burnett Ave # C, Concord 94520 | (925) 372-8234 |
| Chooseone.Com Concord 94520 | (925) 687-9180 |
| Courtenay Design 3966 Mulberry Dr, Concord 94519 | (925) 674-8844 |
| Hazan Enterprises 1868 Clayton Way, Concord 94519 | (925) 798-8441 |
| Host Factor 1470 Detroit Ave # G, Concord 94520 | (925) 812-2722 |
| Marissa Berger Interactive Concord 94520 | (925) 969-9132 |