| Business | Phone |
| Drug Free North State 3051 Victor Ave, Redding 96002 | (530) 223-0203 |
| North State Drug Testing Lab 2301 Park Marina Dr # 17, Redding 96001 | (530) 243-8921 |
| Stat Substance Abuse Testing 987 Mission De Oro Dr # C-D, Redding 96003 | (530) 222-1294 |