| Business | Phone |
| Gene E Cross Jr 487 Montauk Hwy, East Hampton 11937 | (631) 324-3318 |
| John Shanholt & Assoc 24 Park Pl, East Hampton 11937 | (631) 324-7128 |
| Land Marks 11 Muchmore Ln, East Hampton 11937 | (631) 324-8716 |
| Land Planning Svc 405 Montauk Hwy, East Hampton 11937 | (631) 537-8500 |