| Business | Phone |
| Beaudin Ganze Consulting 14142 Denver West Pkwy # 202, Lakewood 80401 | (303) 278-3820 |
| Carver Engineering Inc 1075 S Yukon St # 280, Lakewood 80226 | (303) 989-9396 |
| Shaffer Baucom Engineering 7333 W Jefferson Ave # 230, Lakewood 80235 | (303) 986-8200 |
| Design Mechanical Inc 200 Union Blvd, Lakewood 80228 | (303) 986-6859 |
| Oabaugh Engineering 7500 W Mississippi Ave # D3, Lakewood 80226 | (303) 986-6859 |
| Holloway-Rylatt Engineering 5727 W 6th Ave, Lakewood 80214 | (303) 233-1944 |