| Business | Phone |
| H Piller Corp Ltd 941 Mount Pleasant Rd, Toronto M4P 2L7 | (416) 488-1174 |
| Martin Blain Surveying Ltd Bayview & Eglinton Eamp;, Toronto | (416) 487-5713 |
| Michael J Clancy Surveying Ltd 579 Kingston Rd, Toronto M4E 1R3 | (416) 691-4925 |
| Omari Mwinyi Surveying Ltd 1905 Pine Grove, Toronto | (905) 509-2296 |
| Paul Kidd Surveying Ltd 75 Riverdale Ave, Toronto M4K 1C2 | (416) 463-1539 |
| Pickett & Assoc 474 Adelaide St E, Toronto M5A 1N6 | (416) 367-1928 |
| R A Fligg Surveying Ltd 190 Forum Dr, Toronto | (416) 502-0905 |
| Schaffer & Dzaldov Ltd 64 Jardin Dr, Toronto | (416) 987-0101 |
| GTA Surveying Inc. 31 Goodmark Place, Unit 1, Toronto M9W 6S1 | (416) 679-0572 |