| Business | Phone |
| Duratek Inc 555 Oppenheimer Dr # 101, Los Alamos 87544 | (505) 661-6621 |
| I T Corp 335 Central Park Sq, Los Alamos 87544 | (505) 661-4300 |
| Jacobs Engineering Group Inc 133 Central Park Sq, Los Alamos 87544 | (505) 663-9000 |
| Kleinfelder 1460 Trinity Dr # B, Los Alamos 87544 | (505) 662-6600 |
| Shaw E & I 335 Central Park Sq, Los Alamos 87544 | (505) 661-5200 |