| Business | Phone |
| Mc Far Private Investigations 80 King St, St Catharines L2R 7G1 | (905) 685-0651 |
| Mitchell Lyman 39 Queen St #414, St Catharines L2R 5G6 | (905) 684-6271 |
| Q T Investigative Svc Ltd 350 Scott St, St Catharines L2N 6T4 | (905) 934-7673 |
| Urquhart Investigation & Rsrch 243 Church St, St Catharines L2R 3E8 | (905) 688-9222 |
| Canada Find 176 James St, St Catharines L2R 5C5 | (905) 687-4887 |