| Business | Phone |
| 1100 Architect 5 Crows Nest Ln, East Hampton 11937 | (631) 329-1011 |
| Stephen Lesser 2 Dune Alpin Dr N, East Hampton 11937 | (631) 329-5867 |
| M B Architecture 65 Montauk Hwy, East Hampton 11937 | (631) 329-2983 |
| Bonac Design Inc 37 Fort Pond Blvd, East Hampton 11937 | (631) 329-7533 |
| Martin Architects Pc 9 N Main St, East Hampton 11937 | (631) 324-9440 |
| D & D Harvey Architects 16 Gingerbread Ln, East Hampton 11937 | (631) 324-7232 |
| Bruce D Nagel 6 Hollyoak Ave, East Hampton 11937 | (631) 329-5003 |
| Di Sunno Architecture 92 Newtown Ln, East Hampton 11937 | (631) 324-6676 |
| Nicholas Botta Architect 24 Gingerbread Ln, East Hampton 11937 | (631) 329-5200 |
| John J Nolis 8 Osborne Ln, East Hampton 11937 | (631) 329-1357 |
| Erica Broberg Architect 25 Cedar St, East Hampton 11937 | (631) 329-9928 |
| Francis Fleetwood & Assoc 25 Newtown Ln # B, East Hampton 11937 | (631) 324-4994 |
| Guy Ladd Frost 366 Three Mile Harbor Rd, East Hampton 11937 | (631) 324-2842 |
| Amado M Ortiz 39 Springwood Way, East Hampton 11937 | (631) 329-1547 |
| Rossetti Perchik 29 Maidstone Park Rd, East Hampton 11937 | (631) 324-6250 |
| Douglas P Herrlin 62 Newtown Ln # 206, East Hampton 11937 | (631) 324-6148 |
| Hollenbeck & Smith Inc 74 Montauk Hwy # 16, East Hampton 11937 | (631) 324-2927 |
| L M Architecture 10 Saddle Ln, East Hampton 11937 | (631) 329-2350 |
| Steven W Sems Po Box 2482, East Hampton 11937 | (212) 477-1887 |
| Zwirko & Ortmann 219 Tantigo Rd, East Hampton 11937 | (631) 324-1088 |