| Business | Phone |
| Acme Fiberglass Inc 29240 Pacific St, Hayward 94544 | (510) 538-3440 |
| Composi Con 2067 Quail Canyon Ct, Hayward 94542 | (510) 538-8556 |
| Industrial Fiberglass Sales Co 2227 Dunn Rd, Hayward 94545 | (510) 266-0068 |
| Kemikomp Inc 26210 Industrial Blvd, Hayward 94545 | (510) 796-9608 |