| Immobilier François et Mère inc. | 5755-6334-01 | Laval | Active |
| Immobilier Teradev inc. | 5770-9651-01 | Laval | Active |
| Immobilier Vincorp inc. | 5782-8147-01 | Laval | Active |
| Immoblox inc. | 5809-7312-01 | Laval | Active |
| Immolean inc. | 5800-8004-01 | Laval | Active |
| Imperator Management inc. | 5816-3627-01 | Laval | Active |
| Impérial électrique inc. | 5829-6344-01 | Laval | Active |
| Impérial Service Plancher Inc. | 5716-7850-01 | Laval | Active |
| Infiltration Montréal inc. | 5761-8506-01 | Laval | Active |
| Infrastructures & Systèmes Mobility Way inc. | 5775-1976-01 | Laval | Active |
| Inno Décor Inc. | 8001-1240-39 | Laval | Active |
| Innov+ Construction inc | 5795-1246-01 | Laval | Active |
| Innovacier inc. | 5852-1063-01 | Laval | Active |
| Innovation Polytech Inc. | 5814-8685-01 | Laval | Active |
| Installation F.D. Inc | 5645-6981-01 | Laval | Active |
| Installation G.N.A. inc. | 5873-9103-01 | Laval | Active |
| Installation Gradaille inc. | 5596-2781-01 | Laval | Active |
| Installation J Gomez inc. | 5698-9320-01 | Laval | Active |
| Installation Multi-Céramik inc. | 5801-2600-01 | Laval | Active |
| Installations A-G inc. | 5847-4016-01 | Laval | Active |
| Installations électriques Hymus inc. | 1463-1121-25 | Laval | Active |
| Installations Métrik inc. | 5825-1984-01 | Laval | Active |
| Installations Pro Ceram inc. | 5777-0554-01 | Laval | Active |
| Installations S.A.M. électrique inc. | 8353-1988-10 | Laval | Active |
| Installations Spartan inc. | 5815-7934-01 | Laval | Active |
| Installations Stéphane Girard inc. | 8343-8002-57 | Laval | Active |
| Intégra Contrôles (2008) Inc | 5583-2711-01 | Laval | Active |
| Intensité Électrique inc. | 5734-6207-01 | Laval | Active |
| Investissements 1471 René-LÉvesque Inc. | 5762-5410-01 | Laval | Active |
| Investissements 1810 Basin inc. | 5771-0014-01 | Laval | Active |
| Investissements 221 Sainte-Catherine inc. | 5784-8301-01 | Laval | Active |
| Investissements T.H. inc. | 5582-7299-01 | Laval | Active |
| IsoLAG inc. | 5833-2537-01 | Laval | Active |
| Isolation Alerte (2003) Inc. | 8307-3692-17 | Laval | Active |
| Isolation Alerte Inc. | 2533-3352-78 | Laval | Active |
| Isolation Algon (2000) inc. | 3090-9139-84 | Laval | Active |
| Isolation Algon Éco Inc. | 5685-3492-01 | Laval | Active |
| Isolation Calo-Pro inc. | 5736-9415-01 | Laval | Active |
| Isolation Éclair inc. | 2414-1673-68 | Laval | Active |
| Isolation HIZO inc. | 5821-8686-01 | Laval | Active |
| Isolation Multi-Services 2005 inc. | 8327-9505-49 | Laval | Active |
| Isolation R.M. Insulation inc. | 1899-6884-17 | Laval | Active |
| J. VE entretien et service inc. | 5691-9921-01 | Laval | Active |
| J.A.D. Rénovation Construction Inc. | 8315-6661-44 | Laval | Active |
| J.A.T. électrique inc. | 8351-1899-19 | Laval | Active |
| J.B.F. Construction inc. | 5821-3455-01 | Laval | Active |
| J.G. Gallaccio inc. | 1333-6946-52 | Laval | Active |
| JAC Constructions Et Rénovations inc. | 5694-2329-01 | Laval | Active |
| Jagg électrique inc. | 5612-2237-01 | Laval | Active |
| Jara Rénovations inc. | 5849-0665-01 | Laval | Active |