| Business | Phone |
| Basset's Investigations 60 Center St, Waterbury 6702 | (203) 879-6499 |
| Beneficial Investigation Svc Waterbury 6708 | (203) 597-8555 |
| Brunelli Investigations Llc 138 Addison St, Waterbury 6708 | (203) 597-0144 |
| Discreet Investigations Inc Waterbury 6708 | (203) 597-8681 |