| Business | Phone |
| L Washington & Assoc Security 5070 Parkside Ave # 1400, Philadelphia 19131 | (215) 877-6122 |
| Philadelphia Surveillance Co Po Box 39287, Philadelphia 19136 | (215) 338-3303 |
| Track Down Detective Agcy Llc 1943 E Passyunk Ave, Philadelphia 19148 | (215) 462-1080 |