| Business | Phone |
| A Able Access Control 318 Darlington Cres, Newmarket L3Y 6N4 | (905) 853-4919 |
| A Access Systems 57 Main St S, Newmarket L3Y 3Y5 | (905) 853-0003 |
| Allsafe Security Systems 751 Firth Crt, Newmarket L3Y 8H8 | (905) 895-3560 |
| B T Lock & Security 162 Church St, Newmarket L3Y 4B8 | (905) 898-0823 |
| Bay Locksmith Co 97 Septonne Ave, Newmarket L3Y 2W4 | (905) 895-6828 |
| Gamble Lock Door & Safe 1100 Davis Dr #3, Newmarket L3Y 7V1 | (905) 895-3348 |