| Business | Phone |
| Group One Acoustics Inc 1538 Sherway Dr, Mississauga L4X 1C4 | (905) 896-0988 |
| Howe Gastmeier Chapnik Ltd 2000 Argentia Rd Plza 1 #203, Mississauga L5N 1P7 | (905) 826-4044 |
| John Swallow Assoc Ltd 360 Revus Ave, Mississauga L5G 4S4 | (905) 271-7888 |
| Log Base 10 Engineering 3079 The Credit Woodlands, Mississauga L5C 2J2 | (905) 272-3275 |
| Maybank, Herbert A G 921 Longfellow Ave, Mississauga L5H 2X9 | (905) 271-1362 |