| PATT TECHNOLOGIES | Saint-Eustache | Aerospace |
| PATTONAIR | Lachine | Aerospace |
| PERKINELMER OPTOÉLECTRONICS CANADA INC. | Vaudreuil | Aerospace |
| PLASMATEC INC. | Montréal | Aerospace |
| PNEUTECH-ROUSSEAU | Lachine | Aerospace |
| Pole Air Aviation Inc | Lachine | Aerospace, Aircraft Parts, Engines & Avionics, Tout Entreprises et services |
| POLVIGÉ TECHNOLOGIES INC. | Dorval | Aerospace |
| PRATT & WHITNEY CANADA INC. | Longueuil | Aerospace |
| PRESAGIS | Montréal | Aerospace |
| PROGRESSIVE LTÉE (ATELIER DE MACHINERIE) | Anjou | Aerospace |
Publicité (Desktop) Publicité (Mobile) |
| PRÉCIMAX LTÉE | Lasalle | Aerospace |
| PRÉCISION AUTOMATIQUE JRN LTÉE | Montréal | Aerospace |
| PRÉCISION JLM INC. | Laval | Aerospace |
| PUDDLE JUMPER FLOATS INC. | Outremont | Aerospace |
| RAND WORLDWIDE | Dorval | Aerospace |
| RAYMOR INDUSTRIES | Boisbriand | Aerospace |
| REPOUSSAGE DE MÉTAL AMÉRICAIN 1991 INC. | Laval | Aerospace |
| ROCKWELL COLLINS | Montréal | Aerospace |
| Rolls-Royce Canada Ltée | Lachine | Aerospace, Tout Entreprises et services |
| RTI-CLARO INC. | Laval | Aerospace |
Publicité (Desktop) Publicité (Mobile) |
| S.F. TECH PRECISION INC. | Lachenaie | Aerospace |
| SABLAGE AU JET 2000 INC. | Boisbriand | Aerospace |
| SAFEWORK INC. (divisition de Dassault Systems) | Montréal | Aerospace |
| Safran Helicopter Engines Canada Inc. | Bristol | Aerospace |
| SAFRAN MESSIER-BUGATTI-DOWTY | Mirabel | Aerospace |
| SAFRAN TURBOMECA CANADA | Mirabel | Aerospace |
| SARGENT AÉROSPATIALE CANADA INC. | Anjou | Aerospace |
| SATORI AIR SERVICES INC. (filiale de TEAM S.A.) | Montréal | Aerospace |
| SATYAM A REVERIFIER | Montréal | Aerospace |
| SCDS PRO INC. | Montréal | Aerospace |
Publicité (Desktop) Publicité (Mobile) |
| SERDIM (CORPORATION DE TECHNOLOGIES) | Montréal | Aerospace |
| SERMATECH CANADA INC. | Dorval | Aerospace |
| SERMATI CANADA INC. | Montréal | Aerospace |
| SERVICES AIRBASE INC. | Montréal | Aerospace |
| Shellcast Foundries inc. | Montréal | Aerospace, Tout Entreprises et services |
| SICOTTE LTÉE | Montréal | Aerospace |
| SIDER-TECH 2003 INC. | Boucherville | Aerospace |
| SIMGRAPH INC. | Laval | Aerospace |
| SINTERS CANADA INC CANADIAN. | Boucherville | Aerospace |
| SITA | Centre-Ville | Aerospace, Tout Entreprises et services |
Publicité (Desktop) Publicité (Mobile) |
| SKYSERVICE | Dorval | Aerospace |
| SOCIÉTÉ D'OUTILLAGE M.R. LTÉE | Montréal | Aerospace |
| Société en commandite Airbus Canada | Montréal | Aerospace |
| SONACA MONTRÉAL | Mirabel | Aerospace |
| SPG DATA 3D (Division de SPG Hydro International Inc.) | Sainte-Julie | Aerospace |
| STANDARD AERO | Lachine | Aerospace |
| Stelia Aéronautique Canada | Henry-Giffard | Aerospace |
| SYSTÈMES ACCESSAIR INC. (LES) | Sainte-Catherine | Aerospace |
| TECHNI AIR 2000 INC. | Dorval | Aerospace |
| TECHNIMÉCA INTERNATIONAL LTÉE | Montréal | Aerospace |
