| Business | Phone |
| Aldworth Engineering Inc 85 Curlew Dr #103, North York M3A 2P8 | (416) 446-6300 |
| Arcon Engineering Consultants 352 Consumers Rd, North York M2J 1P8 | (416) 491-2525 |
| B Helm Assoc Ltd 1900 Sheppard Ave E, North York M2J 4T4 | (416) 862-7742 |
| Golder Associates 85 Curlew Dr, North York M3A 2P8 | (416) 383-1760 |
| Gulesserian Associates Inc 255 Duncan Mill Rd #606, North York M3B 3H9 | (416) 391-1230 |
| H A Cantech Trading Inc 30 Silvergrove Rd, North York M2L 2N6 | (416) 447-3534 |
| H H Angus & Assoc Ltd 1127 Leslie St, North York M3C 2J6 | (416) 443-8200 |
| H Rentsch Assoc Ltd 130 Bridgeland Ave, North York M6A 1Z4 | (416) 787-0371 |
| Hamann Engineering 75 The Donway W #308, North York M3C 2E9 | (416) 391-1676 |
| Hatch, Herb Pe 49 Connaught Ave, North York M2M 1G9 | (416) 221-4502 |
| Imagineering Limited 1090 Don Mills Rd #601, North York M3C 3R6 | (416) 444-1600 |
| Intelligent Engineering 255 Duncan Mill Rd, North York M3B 3H9 | (416) 385-9605 |
| Interplan Limited 160 Banbury Rd, North York M3B 2L8 | (416) 447-9146 |
| J T Donald Consultants Ltd 251 Bartley Dr #1, North York M4A 2N7 | (416) 751-5230 |
| Ku Murgen & Assoc Ltd 365 Wilson Ave #A, North York M3H 1T3 | (416) 633-7910 |
| Landiv Group Engineering Ltd 267 Holmes Ave, North York M2N 4N2 | (416) 222-6418 |
| Lea Consulting Ltd 251 Consumers Rd #1200, North York M2J 4R3 | (416) 490-8887 |
| Leipciger Kaminker Mitelman 235 Lesmill Rd, North York M3B 2V1 | (416) 445-8255 |
| Lkm & Partners 235 Lesmill Rd, North York M3B 2V1 | (416) 386-9660 |
| M & E Engineering Ltd 11 Greenyards Dr, North York M2M 2R7 | (416) 250-7222 |
| Mc Donnell Engineering Inc 220 Duncan Mill Rd #309, North York M3B 3J5 | (416) 444-0237 |
| Merber Corp Consulting Engrs 155 Gordon Baker Rd #206, North York M2H 3N5 | (416) 756-1640 |
| Nexsus Engineering Group 220 Duncan Mill Rd #416, North York M3B 3J5 | (416) 449-8868 |
| Pancon Engineering Ltd 94 Kenhar Dr, North York M9L 1N2 | (416) 748-6976 |
| Peto Mac Callum Ltd 165 Cartwright Ave, North York M6A 1V5 | (416) 785-5110 |
| Prosum Engineering Ltd 56 Goddard St, North York M3H 5E2 | (416) 631-6355 |
| R Mloudon Ltd 16 Hotspur Rd, North York M6A 1X6 | (416) 782-2355 |
| R V Anderson Assoc Ltd 2001 Sheppard Ave E #400, North York M2J 4Z8 | (416) 497-8600 |
| Ravens Engineering Inc 1858 Avenue Rd, North York M5M 3Z5 | (416) 782-1644 |
| Riaboy Engineering Ltd 120 Overbrook Pl #109, North York M3H 4P8 | (416) 638-0772 |
| Robert E Brown & Assoc Ltd 235 Yorkland Blvd #400, North York M2J 4Y8 | (416) 499-6288 |
| Bantrel Inc 12 Concorde Pl, North York M3C 3T1 | (416) 441-4905 |
| Barker Terp Gibson Ltd 37 Elynhill Dr, North York M2R 1C5 | (416) 223-6361 |
| Bechtel Canada Co 12 Concorde Pl #200, North York M3C 3R8 | (416) 441-4900 |
| Snc-Lavalin Pharma 789 Don Mills Rd, North York M3C 1T5 | (416) 422-4056 |
| Sony Canada Ltd 115 Gordon Baker Rd, North York M2H 3R6 | (416) 499-1414 |
| Stephenson Engineering Ltd 1 Whitehorse Rd #16, North York M3J 3G8 | (416) 635-9970 |
| Tacet Engineering Ltd 45 Denver Cres, North York M2J 1G6 | (416) 782-0298 |
| Tabcon Engineering 494 Mcnicoll Ave #201, North York M2H 2E1 | (416) 491-7006 |
| Tou & Assoc Ltd 220 Duncan Mill Rd #416, North York M3B 3J5 | (416) 449-9049 |
| Transenco Limited 250 Consumers Rd, North York M2J 4V6 | (416) 502-9260 |
| Trillium Inspection Testing 1315 Lawrence Ave E #518, North York M3A 3R3 | (416) 385-7600 |
| Tse Consultants Inc 2 Harrison Rd, North York M2L 1V2 | (416) 488-3037 |
| Uma Industrial 50 Gervais Dr, North York M3C 1Z3 | (416) 445-4844 |
| Urbis Engineering Ltd 130 Bridgeland Ave, North York M6A 1Z4 | (416) 502-0925 |
| Venneri Limited 1170 Sheppard Ave W #1, North York M3K 2A3 | (416) 635-7838 |
| Weisman Consultants Inc 1110 Finch Ave W #808, North York M3J 2T2 | (416) 736-7453 |
| Wilson, Derek L 104 Sheppard Ave W, North York M2N 1M5 | (416) 223-5585 |
| Carinci Burt Rogers Engnrg 2550 Victoria Park Ave #603, North York M2J 5A9 | (416) 756-2356 |
| Carruthers & Wallace Ltd 970 Lawrence Ave W #805, North York M6A 3B6 | (416) 789-2600 |
| Cecebe Technologies Inc 89 Skymark Dr, North York M2H 3S6 | (416) 490-9840 |
| Cec Inc 18 Wynford Dr #713a, North York M3C 3S2 | (416) 385-9643 |
| Ch2m Hill Canada Ltd 255 Consumers Rd #401, North York M2J 5B6 | (416) 499-9000 |
| Cougar Automation Tech Inc 45 Sheppard Ave E, North York M2N 5W9 | (416) 221-6076 |
| Crossey Engineering Ltd 2255 Sheppard Ave E #E331, North York M2J 4Y1 | (416) 497-3111 |
| Day & Behn Engineering Inc 5109 Steeles Ave W #208, North York M9L 2Y8 | (416) 741-6131 |
| Delcan Corp 133 Wynford Dr, North York M3C 1K1 | (416) 441-4111 |
| Dick Engineering Inc 1 Concorde Gate #500, North York M3C 3N6 | (416) 391-2322 |
| Dillon Consulting Ltd 235 Yorkland Blvd #400, North York M2J 4Y8 | (416) 229-4646 |
| Ece Group Ltd 205 Lesmill Rd, North York M3B 2V1 | (416) 449-1030 |
| Engineering Design & Constr 3500 Dufferin St, North York M3K 1N2 | (416) 638-7604 |
| Eres Consultants 32 De Vere Gdns, North York M5M 3E7 | (416) 489-4927 |
| Firm Associates 21 Hedgewood Rd, North York M2L 1L4 | (416) 487-5993 |
| Fvb Energy Inc 5075 Yonge St #900, North York M2N 6C6 | (416) 512-2651 |