| Business | Phone |
| Mitsui Osk Lines America 2300 Clayton Rd # 1500, Concord 94520 | (925) 688-2600 |
| Barcelona Foods 4110 Clayton Rd, Concord 94521 | (925) 798-2074 |
| Books For The Barrios 2350 Whitman Rd # D, Concord 94518 | (925) 687-7701 |
| Ottex Corp 1390 Willow Pass Rd # 350, Concord 94520 | (925) 686-5500 |