| Business | Phone |
| Smokeeter Systems 161 Connie Cres, Concord L4K 1L3 | (905) 669-5800 |
| Westwood Conquest Group Inc 75 Fernstaff Crt #6, Concord L4K 3P8 | (905) 738-6029 |
| Enviro-Clean Home Care Svc 8600 Keele St #42, Concord L4K 4H8 | (905) 738-6962 |
| Electro-Air Canada Ltd 351 N Rivermede Rd, Concord L4K 3N2 | (905) 669-5620 |