| Business | Phone |
| Canadian Medical Laboratories 124 Barker St, London N5Y 1Y1 | (519) 455-2190 |
| Dynacare Laboratories 690 Hale St, London N5W 1H4 | (519) 453-0960 |
| Canadian Medical Laboratories 648 Huron St, London N5Y 4J8 | (519) 679-0391 |
| Dynacare Laboratories 440 Boler Rd, London N6K 4L2 | (519) 472-8611 |
| Dynacare Laboratories 974 Dearness Dr, London N6E 2R8 | (519) 668-6195 |
| Dynacare Laboratories 1555 Glenora Dr, London N5X 1V7 | (519) 433-7042 |
| Dynacare Laboratories 245 Pall Mall St, London N6A 1P4 | (519) 679-1630 |