| Business | Phone |
| F G & T Construction Inc 2086 Newpark Mall, Newark 94560 | (510) 494-8341 |
| Caudillo's Construction Inc 37110 Sycamore St, Newark 94560 | (510) 713-8770 |
| Cunningham Constr Co 5693 Camass Ct, Newark 94560 | (510) 796-8277 |
| Redgwick Construction Co 8150 Enterprise Dr, Newark 94560 | (510) 792-1727 |