| Business | Phone |
| Air Carpentier Enr 759 Boul Rosemont, Montreal H2S 1Z5 | (514) 276-1742 |
| Alliance Pour La Qualite L'Air 1441 Boul Rene-Levesque O, Montreal H3G 1T7 | (514) 935-1875 |
| Gsm Ventilation 6732 Rue Jeanne-Mance, Montreal H2V 4L3 | (514) 272-1771 |
| J P Lessard Canada Inc 9455 Rue J.-J.-Gagnier, Montreal H1Z 3C8 | (514) 384-0660 |
| Libby Ingenierie Ltee 1001 Rue Lenoir #A519, Montreal H4C 2Z6 | (514) 932-0045 |
| Mistral Ventilation 351 Rue Guizot E, Montreal H2P 1M7 | (514) 382-2825 |
| Multi Ventilation Inc 5872 Rue De Bordeaux, Montreal H2G 2R4 | (514) 272-0080 |
| Tempco Inc 5800 Rue Saint-Jacques, Montreal H4A 2E9 | (514) 483-4445 |
| Ventilation Manic Inc 12905 Jean-Grou St #200, Montreal H1A 3N6 | (514) 498-7903 |
| Ventilation Jdl Inc 447 Rue Duchesneau, Montreal H1L 4E5 | (514) 493-3437 |
| Ventilation Cas Inc 1052 Boul Decarie, Montreal H4A 3H9 | (514) 255-6997 |
| Ventilation Ac Forest Inc 2627 Av Charlemagne, Montreal H1W 3S9 | (514) 255-2842 |
| Vortex Equilibrage Aeraulique 3439 Rue Bercy, Montreal H2K 2W2 | (450) 669-1211 |
| Climatisations Condair Enr 4335 Rue De Bellechasse, Montreal H1T 1Y4 | (514) 374-8870 |
| Dvs Ventilation 9229 Rue Pierre-Bonne, Montreal H1E 7J6 | (514) 494-0516 |