| HYDRAFLOW | Kirkland | Aerospace |
| HÉROUX-DEVTEK INC. (Division Aérostructure) | Dorval | Aerospace |
| HÉROUX-DEVTEK INC. (Division Trains d'atterrissage) | Longueuil | Aerospace |
| HÉROUX-DEVTEK, Division Trains (Hochelaga Aérospatiale Inc.) | Laval | Aerospace |
| ICAM TECHNOLOGIES CORPORATION | Sainte-Anne-De-Bellevue | Aerospace |
| ICX RADAR SYSTEMS | Laval | Aerospace |
| IDS Amérique du Nord | Montréal | Aerospace |
| ILTECH INC. | Montréal | Aerospace |
| IMAGETECH INC. (RESSOURCES LABORATOIRES) | Montréal | Aerospace |
| Inflight Canada Inc | Montréal | Aerospace, Aviation Consultants & Services, Tout Entreprises et services |
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| INFOLUTION INC. | Laval | Aerospace |
| INNOTECH AVIATION SERVICES | Dorval | Aerospace |
| INNOTECH-EXECAIRE GROUP | Dorval | Aerospace |
| INTERNATIONAL THREAD (FILETAGE INTERNATIONAL INC.) | Laval | Aerospace |
| IRT Saint Exupery | Urbain | Aerospace |
| JEPPESEN | Montréal | Aerospace |
| JPC AVIATION | Montréal | Aerospace |
| KAYCOM INC. | Pointe-Claire | Aerospace |
| KVM JVM Photo & Video | Laval | Aerial Photographers |
| L-3 MAS | Mirabel | Aerospace, Tout Entreprises et services |
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| LAVOD (LES INDUSTRIES) INC. | Laval | Aerospace |
| LEESTA LTÉE (LES INDUSTRIES) | Pointe-Claire | Aerospace |
| LEGO PLATING | Saint-Léonard | Aerospace |
| LEMEX AVIATION INC. | Saint-Hubert | Aerospace |
| Les Productions Wild Box | Montréal | Aerial Photographers |
| LOCKHEED MARTIN CANADA | Montréal | Aerospace |
| LSI LUMINESCENT SYSTEMS CANADA INC. (ASTRONICS) | Dorval | Aerospace |
| LTA Aérostructures | Montréal | Aerospace |
| Lufthansa Technik MES | Montréal | Aerospace |
| MACHINE TEK INC. | Sainte-Julie | Aerospace |
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| MAGCHEM INC. | Boucherville | Aerospace |
| MANNARINO SYSTÈMES ET LOGICIELS | Montréal | Aerospace |
| MANX MANUFACTURIERS INC. | Lachenaie | Aerospace |
| MARINVENT CORPORATION | Saint-Bruno | Aerospace |
| MARQUEZ TRANSTECH LTÉE | Montréal | Aerospace |
| MAX TECHNOLOGIES | Brossard | Aerospace |
| MDA SPACE INC. | Sainte-Anne-De-Bellevue | Aerospace |
| Mecachrome Canada Inc | Julien-Audette | Aerospace |
| MECACHROME TECHNOLOGIES INC. | Montréal | Aerospace |
| MECANICA SOLUTIONS INC. | Montréal | Aerospace |
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| MECHTRONIX SYSTEMS INC. | Montréal | Aerospace |
| METCOR INC. | Saint-Eustache | Aerospace |
| MEYER CANADA INC. | Boucherville | Aerospace |
| MG LONIC INC. | Dorval | Aerospace |
| MICRON INC. (LES PRODUITS AUTOMATIQUES) | Laval | Aerospace |
| MINDREADY SOLUTIONS INC. | Montréal | Aerospace |
| Minicut International Inc. | Anjou | Aerospace, Tout Entreprises et services |
| MIRABEL AÉRO-SERVICE INC. | Mirabel | Aerospace |
| MITEC TÉLÉCOM INC. | Pointe-Claire | Aerospace |
| Mitsubishi Aircraft Corporation | Tourelles | Aerospace |
