| Business | Phone |
| Cbs Stationers 1428 Royal Industrial Way, Concord 94520 | (925) 798-8560 |
| National Cartridge Co 3135 Clayton Rd, Concord 94519 | (925) 932-8932 |
| Office Depot 1631 Challenge Dr, Concord 94520 | (925) 689-2582 |
| Office Max 1795 Willow Pass Rd, Concord 94520 | (925) 602-1372 |
| On Time Business Products 2441 Sprig Ct # F, Concord 94520 | (925) 682-3258 |
| Sierra Office Supplies & Print 2441 Sprig Ct # F, Concord 94520 | (925) 682-3258 |
| Staples The Office Superstore 4498 Treat Blvd, Concord 94521 | (925) 609-1014 |