| Business | Phone |
| Health & Safety Network 331 Sovereign Rd, London N6M 1A6 | (519) 452-7722 |
| Industrial Accident Prevention 1069 Wellington Rd #113, London N6E 2H6 | (519) 686-9698 |
| London Occupational Safety Inf 424 Wellington St #218, London N6A 3P3 | (519) 433-4156 |
| Macck Industrial Hygiene 1885 Blue Heron Dr #1, London N6H 5L9 | (519) 657-1113 |
| Occupational Safety Group 845 Bradley Ave #B, London N6E 3Z6 | (519) 850-4000 |
| Oshtech Inc 400 York St #100, London N6B 3N2 | (519) 642-1122 |
| Tetra Society 633 Colborne St, London N6B 2V3 | (519) 641-5391 |