| Business | Phone |
| H B Carpentry 10 Bassett Blvd, Whitby L1N 9C3 | (905) 665-6689 |
| High-Tech Electrical Contr Ltd 7143 Ashburn Rd, Whitby L1M 1L6 | (905) 655-5956 |
| J Velacich & Sons Ltd 718 Centre St N, Whitby L1N 9A9 | (905) 430-8943 |
| J W Contracting 630 Euclid St, Whitby L1N 5C2 | (905) 666-1400 |
| Johnson Building Construction 2100 Forbes St #1, Whitby L1N 9T3 | (905) 436-9613 |
| Just Basements 410 Ontario Crt, Whitby L1N 9L9 | (905) 665-0034 |
| Marshall Homes 248 Willowbrook Dr, Whitby L1R 2Z1 | (905) 430-2703 |
| Yunko Construction Corp 2020 Wentworth St, Whitby L1N 9A8 | (905) 432-2362 |
| Ngp Contractors 600 Garden St, Whitby L1N 7B3 | (905) 666-2279 |
| Birne Electric 2255 Forbes St, Whitby L1N 9X1 | (905) 725-8132 |
| Scotto Contracting Inc 19 Bannerman Crt, Whitby L1N 5M9 | (905) 666-3822 |
| Sector Contracting Ltd 6 Coastview Crt, Whitby L1N 9N6 | (905) 665-0822 |
| Walton Restoration 1621 Mcewen Dr #8, Whitby L1N 9A5 | (905) 725-5666 |
| Winvalley Contracting 11 Valley Crt, Whitby L1N 3H4 | (905) 668-3862 |
| Brian Barton Building Corp 206 Gilbert St W, Whitby L1N 1R8 | (905) 668-4212 |
| C & M Drywall Taping 45 Guthrie Cres, Whitby L1P 1A6 | (905) 665-7650 |
| Carewood Contracting Inc 2020 Wentworth St, Whitby L1N 9A8 | (905) 579-3122 |
| Corvinelli Construction Ltd 7740 Cedarbrook Trail, Whitby L1M 1L8 | (905) 655-8879 |
| D C Contracting 911 Athol St, Whitby L1N 4A3 | (905) 668-3843 |
| Ferro General Contracting 12 Claudia Dr, Whitby L1M 1K7 | (905) 655-7115 |