Canada's 2011 TOP 50 Defence Companies
| Ranking | Company | Previous Year |
|---|---|---|
| 1 | L-3 Communications | 3 |
| 2 | CAE | 10 |
| 3 | Meggitt Training Systems Canada | 2 |
| 4 | General Dynamics Canada | 5 |
| 5 | Irving Shipbuilding Inc. | 11 |
| 6 | General Dynamics Land Systems-Canada | 4 |
| 7 | Raytheon Canada Limited | 1 |
| 8 | Seaspan Marine Corporation | 23 |
| 9 | Thales Canada | 28 |
| 10 | The Boeing Company | 7 |
| 11 | Lockheed Martin Canada | 12 |
| 12 | NGRAIN | 9 |
| 13 | Rheinmetall Canada Inc. | 6 |
| 14 | Top Aces Inc. | 14 |
| 15 | Cascade Aerospace Inc. | 24 |
| 16 | Revision Military Inc. | 18 |
| 17 | Bombardier Inc. | 13 |
| 18 | DEW Engineering and Development ULC | 8 |
| 19 | DRS Technologies Canada Ltd. | 16 |
| 20 | Esterline CMC Electronics | 21 |
| 21 | HISS, Inc. | 38 |
| 22 | Babcock Canada | N/A |
| 23 | Provincial Aerospace Ltd., (PAL) | N/A |
| 24 | IMP Aerospace | 32 |
| 25 | Ultra Electronics Canada | 15 |
| 26 | Colt Canada Corp. | 34 |
| 27 | Rolls Royce Canada Ltd. | N/A |
| 28 | NovAtel Inc. | N/A |
| 29 | C4i Consultants Incorporated | 40 |
| 30 | Viking Air Limited | 29 |
| 31 | BMT Fleet Technologies Ltd. | N/A |
| 32 | Magellan Aerospace | N/A |
| 33 | VariSystems Military | 36 |
| 34 | Pratt & Whitney Canada | 31 |
| 35 | Obzerv Technologies Inc. | 30 |
| 36 | Neptec Design Group | 22 |
| 37 | Curtiss Wright Controls | 20 |
| 38 | Bell Helicopter Textron Canada Ltd. | 26 |
| 39 | Field Aviation | 27 |
| 40 | IBM | N/A |
| 41 | Pelican Products Canada | N/A |
| 42 | Armatec Survivability | N/A |
| 43 | Calian Ltd. | N/A |
| 44 | Bluedrop Performance Learning | N/A |
| 45 | COM DEV International | 17 |
| 46 | MacDonald, Dettwiler and Associates Ltd. (MDA) | 19 |
| 47 | General Kinetics Engineering Corp. | 39 |
| 48 | Avcorp Industries Inc. | 35 |
| 49 | Weatherhaven | N/A |
| 50 | IMT Defence | N/A |
