| Business | Phone |
| Lynch Homes Inc 321 County Road 39a, Southampton 11968 | (631) 283-0009 |
| Burns Development Corp 33 Flying Point Rd, Southampton 11968 | (631) 204-8800 |
| Craftsman Homes 370 County Road 39, Southampton 11968 | (631) 287-7120 |
| East End Home & Property 196 Big Fresh Pond Rd, Southampton 11968 | (631) 283-4598 |
| Nicholas Alimanestianu Inc 88 Pine St, Southampton 11968 | (631) 283-5403 |
| Southampton Fresh Air Home 36 Barkers Island Rd, Southampton 11968 | (631) 283-1594 |