| Business | Phone |
| Quest Diagnostics Inc 2900 12th Ave N # 270w, Billings 59101 | (406) 248-6780 |
| Pathology Associates Medical 2900 12th Ave N # 150w, Billings 59101 | (406) 259-7605 |
| Lab Core 2900 12th Ave N # 250w, Billings 59101 | (406) 254-2736 |
| Labcheck 90 Poly Dr, Billings 59101 | (406) 237-7900 |