| Business | Phone |
| Backyard Composting Hotline 38 Sheridan St, Vallejo 94590 | (707) 553-2784 |
| Ch2m Hill 690 Walnut Ave # 230, Vallejo 94592 | (707) 562-1015 |
| Gayle Edmisten Watkin Cnsltng 433 Southport Way, Vallejo 94591 | (707) 645-7189 |
| Weston Solutions Inc 750 Dump Rd, Vallejo 94592 | (707) 562-3200 |