| Business | Phone |
| William N Sioholm Jr Excvtn 1 Blue Hills Rd, North Haven 6473 | (203) 239-3838 |
| Thomas Keegan & Sons Inc 75 Valley Service Rd, North Haven 6473 | (203) 239-9248 |
| Stoneyridge Corp 141 Barberry Rd, North Haven 6473 | (203) 239-2002 |
| R Borrelli Excavating Co Llc 356 State St # H, North Haven 6473 | (203) 248-4112 |
| Earth Technology Inc 250 Sackett Point Rd, North Haven 6473 | (203) 230-2040 |