| Business | Phone |
| Mintron Enterprise Use 41969 Albrae St, Fremont 94538 | (510) 445-1898 |
| Monta Vista Technology Inc 4400 Enterprise Pl, Fremont 94538 | (510) 226-8838 |
| Oic Inc 40725 Encyclopedia Cir, Fremont 94538 | (510) 827-5185 |
| Perimeter Products Inc 43180 Osgood Rd, Fremont 94539 | (510) 249-1450 |
| Aca Security Systems Inc 44801 Industrial Dr, Fremont 94538 | (510) 353-1228 |
| G E Infrastructure Security 42735 Christy St, Fremont 94538 | (510) 668-0804 |
| Security West Reality 4032 Bay St, Fremont 94538 | (510) 651-0171 |
| Speedchip American Inc 48890 Milmont Dr # 104, Fremont 94538 | (510) 657-4100 |