| Business | Phone |
| Pandolfi & Dolce 610 Veterans Hwy, Hauppauge 11788 | (631) 543-1300 |
| Lawrence L Smith Assoc 200 Motor Pkwy # D26, Hauppauge 11788 | (631) 273-2333 |
| Skidmore Owings & Merrill 1300 Veterans Hwy, Hauppauge 11788 | (631) 951-4924 |
| Joseph T Matthews & Assoc 2160 Joshuas Path, Hauppauge 11788 | (631) 348-4500 |