| Business | Phone |
| Ascot Mansions 2100 John St, Thornhill L3T 7S6 | (905) 707-9036 |
| International Apartment Ltd 7250 Yonge St #1101, Thornhill L4J 7X1 | (905) 762-0505 |
| Jsa Property Inc 28 Arnold Ave, Thornhill L4J 1B1 | (905) 889-5469 |
| Monarch Development 123 Commerce Valley Dr E, Thornhill L3T 7W8 | (905) 763-8578 |
| Park Lane Developments 180 Steeles Ave W #206, Thornhill L4J 2L1 | (905) 889-4883 |
| Rockwood Management 1054 Centre St #268, Thornhill L4J 8E5 | (905) 764-0869 |
| Berkley Property Management 1 Longbridge Rd, Thornhill L4J 1L4 | (905) 763-7436 |
| Ronald J Graham Consultants 9011 Leslie, Thornhill | (905) 762-9313 |
| St George Property Mgmt Inc 8111 Yonge St, Thornhill L3T 4V9 | (905) 881-3115 |
| Fanta International 8108 Yonge St #201, Thornhill L4J 1W4 | (905) 771-8888 |
| York Region Condominium Corp 7398 Yonge St #100, Thornhill L4J 8J2 | (905) 886-3855 |
| Camphor Holdings Ltd 8199 Yonge St, Thornhill L3T 2C6 | (905) 886-0859 |
| Comsec Property Mgmt 7905 Bayview Ave, Thornhill L3T 7N3 | (905) 882-0732 |
| Elljay Condo Management 7411 Yonge St #511, Thornhill L3T 2B6 | (905) 731-7505 |