| Business | Phone |
| Lama Construction Inc 1961 Meeker Ave, Richmond 94804 | (510) 234-5558 |
| J K Merz General & Engrg Contr 984 Hensley St, Richmond 94801 | (510) 232-2080 |
| Skanska Koch Inc 1001 Canal Blvd, Richmond 94804 | (510) 232-6430 |
| Walther Engineering Svc 3219 Pierce St, Richmond 94804 | (510) 525-1129 |