| Business | Phone |
| Center For Research Strategies 225 E 16th Ave # 1150, Denver 80203 | (303) 860-1705 |
| Clinical Pharmaceutical Rsrch 633 Leyden St, Denver 80220 | (303) 377-9100 |
| Colorado Prevention Ctr 789 Sherman St # 200, Denver 80203 | (303) 860-9900 |
| Toxicology-Medical Denver 80206 | (303) 377-9100 |
| Med Search Inc 6000 E Evans Ave # 3-140, Denver 80222 | (303) 504-0060 |
| Pharmatech Inc 800 Grant St, Denver 80203 | (720) 917-8400 |