| Business | Phone |
| Alpha Laboratories Inc 1262 Don Mills Rd, North York M3B 2W7 | (416) 449-2166 |
| Hospital In-Common Laboratory 18 Wynford Dr #600, North York M3C 3S2 | (416) 391-1499 |
| Intercounty Medical Labs Ltd 1100 Sheppard Ave E #108, North York M2K 2W1 | (416) 221-5500 |
| Intercounty Medical Labs Ltd 75 The Donway W #511, North York M3C 2E9 | (416) 445-5224 |
| Lab Care 2100 Finch Ave W #212, North York M3N 2Z9 | (416) 739-8221 |
| Labcare Inc 5 Fairview Mall Dr #160, North York M2J 2Z1 | (416) 497-4122 |
| Lab Care 2797 Bathurst St #105, North York M6B 4B9 | (416) 783-6431 |
| Lab Care 5927 Bathurst St #B2, North York M2R 3T5 | (416) 225-1629 |
| Med-Health Laboratories Ltd 4640 Jane St, North York M3N 2K5 | (416) 661-8268 |
| Med-Health Laboratories 1280 Finch Ave W #703, North York M3J 3K6 | (416) 665-7090 |
| Med-Health Laboratories Ltd 1216 Lawrence Ave W, North York M6A 1E3 | (416) 256-7278 |
| Melimar Allergy Laboratory Inc 4430 Bathurst St #203, North York M3H 3S3 | (416) 630-4076 |
| Northwest Nuclear Imaging 960 Lawrence Ave W #101, North York M6A 3B5 | (416) 785-9060 |
| Bathwill Laboratories Ltd 3910 Bathurst St #400, North York M3H 5Z3 | (416) 638-9484 |
| Stem Sciences Inc 77 Finch Ave W, North York M2N 2H5 | (416) 730-0800 |
| Canadian Medical Laboratories 4430 Bathurst St #211, North York M3H 3S3 | (416) 636-2040 |
| Canadian Medical Laboratories 20 Wynford Dr #107, North York M3C 1J4 | (416) 441-1234 |
| Canadian Medical Laboratories 2065 Finch Ave W #B3, North York M3N 2V7 | (416) 743-2371 |
| Canadian Medical Laboratories 1017 Wilson Ave #105, North York M3K 1Z1 | (416) 398-1671 |
| Canadian Medical Labs 5 Fairview Mall Dr, North York M2J 2Z1 | (416) 492-8048 |
| Canadian Medical Labs 2780 Jane St, North York M3N 2J2 | (416) 740-7588 |
| Don-Al Lab Svc Ltd 1200 Lawrence Ave E #303, North York M3A 1C2 | (416) 449-8009 |
| Dynacare Laboratories 3292 Bayview Ave #203, North York M2M 4J5 | (416) 730-9029 |
| Gamma-Dynacare Medical Labs 4256 Bathurst St #101, North York M3H 5Y8 | (416) 630-8485 |
| Gamma Dynacare Medical Labs 1325 Finch Ave W #102, North York M3J 2G5 | (416) 635-5483 |
| Gamma North Peel Laboratory 53 The Links Rd, North York M2P 1T7 | (416) 226-5100 |
| Gamma Dynacare Medical Labs 960 Lawrence Ave W #104, North York M6A 3B5 | (416) 256-9167 |
| Gamma Dynacare Medical Labs 3695 Keele St #100, North York M3J 1N2 | (416) 630-2367 |