| Business | Phone |
| Ont Case Managers Assoc 194 Eagle St, Newmarket L3Y 1J6 | (905) 895-6623 |
| Newmarket Minor Softball Assn 16195 Bayview, Newmarket | (905) 898-0672 |
| Newmarket Minor Hockey Assn 35 Patterson St, Newmarket | (905) 898-0714 |
| Newmarket Chamber Of Commerce 470 Davis Dr, Newmarket L3Y 2P3 | (905) 898-5900 |
| North Newmarket Lions Club 579 Pinder Ave, Newmarket L3X 2A4 | (905) 895-1441 |
| Bicycle Trade Assn Of Canada 515 Mulock Dr, Newmarket L3Y 1A1 | (905) 853-5031 |
| Windfall Eco-Works 500 Water St, Newmarket L3Y 1M5 | (905) 895-1926 |
| York Region Law Assn Library 50 Eagle St W, Newmarket L3Y 6B1 | (905) 895-2018 |
| York South Simcoe Training 17665 Leslie St, Newmarket L3Y 3E3 | (905) 967-0605 |
| Canadian Home Builders Assn 196 Yorkshire Dr, Newmarket L3Y 6J7 | (905) 954-0730 |