| Business | Phone |
| Clinical Laboratory Partners 420 E Main St # 3-12, Branford 6405 | (203) 315-1487 |
| Quest Diagnostics Inc 1008 Main St, Branford 6405 | (203) 949-1260 |
| Quest Diagnostics Inc 144 N Main St, Branford 6405 | (203) 949-1260 |
| Quest Diagnostics Inc 960 Main St, Branford 6405 | (203) 488-9917 |