| Business | Phone |
| Investigative Professional 218 N Wellwood Ave, Lindenhurst 11757 | (631) 225-5819 |
| Investigative Professional Inc 125 Sunrise Hwy, Lindenhurst 11757 | (631) 884-4130 |
| Joseph Gandolfo Investigator 1009 N Richmond Ave, Lindenhurst 11757 | (631) 957-0316 |