| Business | Phone |
| Able Electric 3 Mac Carl Cres, Whitby L1R 2T7 | (905) 436-3157 |
| A C Technical Systems Inc 2100 Forbes St #8, Whitby L1N 9T3 | (905) 666-8676 |
| Hurt Electric 93 Fallingbrook St, Whitby L1R 1P8 | (905) 668-5974 |
| Mc Teague Electric Ltd 2100 Forbes St #2, Whitby L1N 9T3 | (905) 668-4278 |
| Mr Electric 33 Jeanne Crt, Whitby L1N 3M6 | (905) 725-9222 |
| Nortec Electric 22 Belmont Crt, Whitby L1N 7Z6 | (905) 723-3363 |
| Philipp Electric Inc 173 Brock St N, Whitby L1N 4H3 | (905) 668-7684 |
| Robert C Nichols Electric Ltd 85 Anchorage Ave, Whitby L1N 9N9 | (905) 665-5285 |
| Sjs Control Tecnologies 16 Glen Hill Dr, Whitby L1N 6Z9 | (905) 668-6473 |
| Sjs Control Technologies 1621 Mcewen Dr #31, Whitby L1N 9A5 | (905) 571-6667 |
| Vickery Electric Ltd 1132 Brock St S, Whitby L1N 4L9 | (905) 668-1108 |
| Whitby Electric Ltd 8 Ward St, Whitby L1M 1G8 | (905) 655-4221 |
| East Electric 23 Sturgess Cres, Whitby L1M 1J9 | (905) 655-4844 |
| Brooklin Electric Co Ltd 628 Kent St, Whitby L1N 4Y9 | (905) 665-0002 |
| Electro-Works Ltd 2020 Wentworth St, Whitby L1N 9A8 | (905) 432-9202 |
| Denys Electric Ltd 2020 Wentworth St #10, Whitby L1N 9A8 | (905) 720-0470 |
| Diano Electric 31 Perkinsfield St, Whitby L1N 8K3 | (905) 430-1414 |
| Durham Electrical Contractors 33 Jeanne Crt, Whitby L1N 3M6 | (905) 725-0659 |