| Business | Phone |
| Berkeley Land Co 1960 Williams St, San Leandro 94577 | (510) 667-9078 |
| Buenaventura Project 14596 Bancroft Ave # 2, San Leandro 94578 | (510) 614-7181 |
| Catalina Copr Park 14470 Doolittle Dr, San Leandro 94577 | (510) 351-3478 |
| Norcal Support Servisec Inc 2450 Washington Ave, San Leandro 94577 | (510) 346-2450 |
| Ruel Construction San Leandro 94578 | (510) 481-1949 |