| Business | Phone |
| Aci Investigations Inc 600 Old Country Rd, Garden City 11530 | (516) 222-1700 |
| Atlas Investigations Inc 584 Ardsley Blvd, Garden City 11530 | (516) 292-3678 |
| Dartmouth Inc 591 Stewart Ave # 420, Garden City 11530 | (516) 745-0038 |
| J D Investigation 168 Bromleigh Rd, Garden City 11530 | (516) 327-0877 |
| Tele Trace Asset Locators 320 Old Country Rd, Garden City 11530 | (516) 741-3004 |