| Business | Phone |
| Communications Workers-America 193 State St, North Haven 6473 | (203) 288-3440 |
| Communications Workers-America 336 State St # 2, North Haven 6473 | (203) 288-6269 |
| Roofers Local # 12 15 Bernhard Rd, North Haven 6473 | (203) 772-2565 |
| National Assn-Letter Carriers 23 Brock St # B2, North Haven 6473 | (203) 777-6252 |
| Ironworkers 15 Bernhard Rd, North Haven 6473 | (203) 787-4154 |