| Business | Phone |
| Carlson Design Group Inc 7232 Havenwood Dr, Castle Rock 80108 | (303) 688-3876 |
| David Elfring Solar Design 725 Wilcox St # A, Castle Rock 80104 | (303) 688-4441 |
| Design Resource Group 840 Kinner St, Castle Rock 80109 | (303) 660-4863 |
| Romary Architects 840 Kinner St, Castle Rock 80109 | (303) 688-5588 |
| Dlh Architecture 3833 Elk Run Dr, Castle Rock 80109 | (303) 688-5273 |