| Business | Phone |
| Century Dynamics Inc 1001 Galaxy Way # 325, Concord 94520 | (925) 771-2300 |
| Free Bsd Mall Inc Concord 94520 | (925) 674-0821 |
| Object Integration Tech 1855 Gateway Blvd # 700, Concord 94520 | (925) 363-1510 |
| Viasinc 1390 Willow Pass Rd # 420, Concord 94520 | (925) 969-1070 |
| Zomax Inc 2727 Systron Dr, Concord 94518 | (510) 492-5191 |
| Blue Tools Software 995 Court Ln, Concord 94518 | (925) 798-4376 |
| Clients Firstbusiness Solution 1849 Willow Pass Rd, Concord 94520 | (925) 692-0012 |
| Con Tec 2300 Clayton Rd, Concord 94520 | (925) 246-0320 |
| Harbinger Corp 1000 Burnett Ave # 200, Concord 94520 | (925) 602-2000 |
| K T O'Neill Consulting Concord 94520 | (925) 825-5422 |
| Microsoft Business Solutions Po Box 5542, Concord 94524 | (925) 265-1010 |
| Mountford Group Inc 1486 Davis Ave, Concord 94518 | (925) 686-6613 |
| Rogers Consulting Concord 94520 | (925) 827-0638 |
| Threshold Computer Systems Inc Concord 94520 | (925) 687-8415 |