| Sew Eurodrive Canada | Dorval | Tout Entreprises et services |
| SFM | Dorval | Tout Entreprises et services |
| Shawcor Ltée | Dorval | Life Sciences and Health Technologies (LSHT) |
| Sheldon Kagan International | Dorval | Tout Entreprises et services |
| Sheraton Montreal Airport Hotel | Dorval | Tout Tourisme et hôtels |
| Silliker Canada Co | Dorval | Analytical & Testing Laboratories |
| Simpler Networks Inc | Dorval | Information Technologies (IT) |
| Simplex Equipment Rental | Dorval | Compressors |
| Simply4 Communication + Design | Dorval | Tout Entreprises et services |
| Sky Regional | Dorval | Airlines |
Publicité (Desktop) Publicité (Mobile) |
| Skyservice | Dorval | Airlines |
| SKYSERVICE | Dorval | Aerospace |
| Société d'horticulture et d'écologi... | Dorval | Tout Arts et divertissement |
| Société Industrielle Jason (Canada)... | Dorval | Tout Entreprises et services |
| Soft Choice Inc. | Dorval | Tout Informatique et internet |
| Solokaf Express Inc | Dorval | Furniture Stores |
| Solutions Ccf | Dorval | Aircraft Design & Manufacturers |
| Spa Cloud | Montréal | Aromatherapy |
| Spa Diva | Montréal | Aromatherapy |
| Spa Escale Santé | Montréal | Aromatherapy, Beauty & Health Spas |
Publicité (Desktop) Publicité (Mobile) |
| Spa Espace Nomad | Montréal | Tout Commerces au détail, Tout Entreprises et services, Aromatherapy |
| Spa St. James | Montréal | Aromatherapy |
| SPA Sylvia Pizzi | Pointe-Claire | Aromatherapy |
| Spa Vert | Montréal | Aromatherapy |
| Starlink Aviation | Dorval | Aircraft & Private Jet Charter, Tout Entreprises et services |
| Starlink Aviation Inc | Dorval | Aviation Consultants & Services |
| Starview Packaging Machinery Inc. | Dorval | Tout Entreprises et services |
| Street Force | Dorval | Auto Body Shop |
| SUPERTIRES.ca | Dorval | Tire Shop |
| Surgmed Group of companies | Dorval | Life Sciences and Health Technologies (LSHT) |
Publicité (Desktop) Publicité (Mobile) |
| Swiss WorldCargo | Dorval | Airlines |
| Swissport | Dorval | Air Cargo Service |
| Swissport | Dorval | Aircraft Maintenance, Service & Storage |
| Swissport Canada Handling Inc | Dorval | Air Cargo Service |
| Systemes D'Affaires Phoenix Inc, Les | Dorval | Shopping Mall |
| Systèmes d'Ordinateurs Canacomp Inc... | Dorval | Tout Informatique et internet |
| Systèmes Informatique Conforme Acti... | Dorval | Tout Entreprises et services |
| TECHNI AIR 2000 INC. | Dorval | Aerospace |
| Technologies d'Abrasifs N A Inc | Dorval | Abrasives |
| TeraGo Networks Inc | Dorval | Information Technologies (IT) |
Publicité (Desktop) Publicité (Mobile) |
| Thallion Pharmaceuticals Inc. | Dorval | Life Sciences and Health Technologies (LSHT) |
| The Christian Book Depot | Dorval | Tout Commerces au détail |
| The Official John Colicos Fan Club | Dorval | Tout Arts et divertissement |
| Thera-plantes Impex Inc. | Dorval | Agri-food |
| Thrifty Car Rental | Dorval | Tout Commerces au détail |
| Tiffany Lee-Wo | Dorval | wo |
| Towing Lachine | Dorval | Boat Towing |
| Transtronic | Dorval | Battery Chargers |
| Turkish Airlines | Dorval | Airlines |
| Turkish Airlines Cargo Inc | Dorval | Airlines |
