| Business | Phone |
| Discover Card 5640 Picardy Dr, Oakland 94605 | (510) 534-7368 |
| Providian Financial Corp 1333 Broadway, Oakland 94612 | (510) 768-0083 |
| Shandycorp 1150 77th Ave, Oakland 94621 | (510) 777-1004 |
| Shandy Corp Oakland 2804 Adeline St, Oakland 94608 | (510) 452-3702 |