| Business | Phone |
| Appian Engineering Inc 760 E Capitol Ave, Milpitas 95035 | (408) 946-2677 |
| D & L Engineering Inc 1021 Pecten Ct, Milpitas 95035 | (408) 945-5997 |
| Enoch Engineering Svc 2187 Stratford Dr, Milpitas 95035 | (408) 263-1000 |
| Olixir Technologies 370 S Abbott Ave, Milpitas 95035 | (408) 719-0595 |