| Business | Phone |
| Circuit City 2030 Diamond Blvd, Concord 94520 | (925) 827-5555 |
| Fry's Electronics 1695 Willow Pass Rd, Concord 94520 | (925) 852-0300 |
| Good Guys 1280 Willow Pass Rd # A, Concord 94520 | (925) 676-9300 |
| Radio Shack 1790 Willow Pass Rd, Concord 94520 | (925) 687-9580 |
| Radio Shack 4482 Treat Blvd, Concord 94521 | (925) 676-6575 |