| Business | Phone |
| Allied Environmental Inc 26291 Production Ave, Hayward 94545 | (510) 732-1300 |
| Heritage Contracting Svc 24200 Clawiter Rd, Hayward 94545 | (510) 264-9900 |
| Restec Contractors 22959 Kidder St, Hayward 94545 | (510) 732-1996 |
| Synergy Co 28436 Satellite St, Hayward 94545 | (510) 259-1700 |
| Synergy Environmental Inc 28436 Satellite St, Hayward 94545 | (510) 444-2333 |