| Solarium Montreal Solarium Inc. | 2379-8598-87 | Laval | Active |
| Solarium Optimum inc. | 5702-6072-01 | Laval | Active |
| Soldera Construction Inc. | 2544-4852-84 | Laval | Active |
| Solico Après Sinistre inc. | 5836-9141-01 | Laval | Active |
| Solplan inc. | 5837-4778-01 | Laval | Active |
| Solpro inc. | 5602-8921-01 | Laval | Active |
| Solusec inc. | 5686-5694-01 | Laval | Active |
| Solution Contrôlium inc. | 5637-5702-01 | Laval | Active |
| Solutions Blumec inc. | 5866-5696-01 | Laval | Active |
| Solutions HIDET inc. | 5858-6785-01 | Laval | Active |
| Solutions J.L. inc. | 5727-8947-01 | Laval | Active |
| SOLUTIONS RANGEMENTS GR + INC. | 5757-7975-01 | Laval | Active |
| Solutions Réfrigération inc. | 5831-2554-01 | Laval | Active |
| Solutions Zoom Inc. | 5761-0362-01 | Laval | Active |
| SOS Pavage inc. | 5845-5809-01 | Laval | Active |
| Soudure Charles Morency inc | 5792-7584-01 | Laval | Active |
| Soudure Ervin inc. | 5785-2329-01 | Laval | Active |
| Soudure St-Louis inc. | 5847-8967-01 | Laval | Active |
| Sous-sol confort inc. | 5784-3344-01 | Laval | Active |
| SPG 89 Entrepreneur Electricien LTÉE | 5754-8281-01 | Laval | Active |
| SR contrôle-air climatisation inc. | 5628-2114-01 | Laval | Active |
| SR Excavation inc. | 5656-6128-01 | Laval | Active |
| St-Martin électrique inc. | 1142-7036-25 | Laval | Active |
| Stan & Co. Properties inc. | 5873-1621-01 | Laval | Active |
| Stermcorp inc. | 5690-2117-01 | Laval | Active |
| Stonix, Granit & Marbre Inc. | 8277-7467-03 | Laval | Active |
| Stratimo Construction inc. | 5875-3856-01 | Laval | Active |
| Structure Sept s.e.c. | 5876-9217-01 | Laval | Active |
| Structures et Rénovations Sy Décarie inc. | 8358-0860-01 | Laval | Active |
| Super Solutions inc. | 5808-5028-01 | Laval | Active |
| SuperNord Construction inc. | 5676-5563-01 | Laval | Active |
| Surface Béton Concept inc. | 5853-0338-01 | Laval | Active |
| Surface SynX Inc. | 5758-4146-01 | Laval | Active |
| Surveillance Big Brother inc | 5625-4337-01 | Laval | Active |
| Surveillance Installation Alarme J.R. inc | 5637-2840-01 | Laval | Active |
| Sutera inc. | 5627-4970-01 | Laval | Active |
| Syd Immo Concept inc. | 5733-6372-01 | Laval | Active |
| Système de chauffage R. Ledoux inc. | 8285-9687-57 | Laval | Active |
| Système incendie Leclerc inc | 5613-1253-01 | Laval | Active |
| Système Intérieur FR inc. | 5812-8398-01 | Laval | Active |
| Systèmes de Sécurité Zone inc | 5619-7627-01 | Laval | Active |
| Systèmes Élément inc. | 8330-5292-04 | Laval | Active |
| Systèmes Fondation Inc. | 5656-1418-01 | Laval | Active |
| Systèmes Intérieurs LMA inc. | 5619-1091-01 | Laval | Active |
| Systemes Interieurs Michel Nadeau Inc. | 2633-0977-89 | Laval | Active |
| Systèmes Intérieurs Paradis inc. | 8332-9516-29 | Laval | Active |
| Systèmes Intérieurs ProMax inc | 5792-4714-01 | Laval | Active |
| Systèmes Intérieurs Samy inc. | 5655-6616-01 | Laval | Active |
| Systemes Interieurs Yves Landry Inc. | 2841-7111-99 | Laval | Active |
| Systèmes K2 inc. | 5596-4118-01 | Laval | Active |