| Business | Phone |
| Norcal Environmental Svc 1026 Olson Ln # 124, El Dorado Hills 95762 | (916) 941-6806 |
| Resource Design Technology Inc 4509 Golden Foothill Pkwy # 2, El Dorado Hills 95762 | (916) 983-9193 |
| Youngdahl Consulting Group Inc 1234 Glenhaven Ct, El Dorado Hills 95762 | (916) 933-0633 |
| Davis Environmental 2305 Inverness Pl, El Dorado Hills 95762 | (916) 933-9106 |
| Hadden Environmental 4145 Alta Sierra Way, El Dorado Hills 95762 | (916) 939-4444 |
| Horizon Environmental Inc 4970 Windplay Dr # C5, El Dorado Hills 95762 | (916) 939-2170 |
| Dunn Environmental Inc 5060 Robert J Mathews Pkwy, El Dorado Hills 95762 | (916) 941-3850 |