# Top 50 aerospace and defence companies in Canada

Tamtam tracks 133 aerospace and defence companies headquartered in Canada. This list ranks the 50 largest by number of employees on LinkedIn, led by Bombardier, Department of National Defence/Ministère de la défense nationale and Canadian Armed Forces | Forces armées canadiennes. Their median headcount is 600. Half of them were founded in 1979 or later. The most common headquarters are Ottawa (12), Montreal (4) and Calgary (3).

The aerospace and defence sector in Canada includes both large government entities and private companies. Major players such as Bombardier specialize in business jet manufacturing, while CAE focuses on simulation training and critical operations support. MDA Space is a global leader in robotics and satellite technology, and Seaspan ULC is involved in shipbuilding and marine transportation services. The presence of entities like the Department of National Defence and the Canadian Armed Forces highlights the significant role of government in this sector.

Most of the listed companies are headquartered in major Canadian cities, with a notable concentration in Ottawa, home to several defence-related organizations. Montréal also features prominently with aerospace giants. The sector demonstrates a mix of established firms, like CAE founded in 1947, and more recent entrants such as Levio, established in 2014, indicating a blend of long-standing expertise and newer consulting services.

🇨🇦 Canada · 50 companies · Updated Nov 12, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [Bombardier](https://www.tamtam.ai/c/bombardier) (bombardier.com)<br>A global leader in designing, manufacturing, and servicing exceptional business jets with innovative cabin design, performance, and reliability for diverse clientele worldwide | Aviation and Aerospace Component Manufacturing | 🇨🇦 Montréal | 30,000 |  |
| 2 | [Department of National Defence/Ministère de la défense nationale](https://www.tamtam.ai/c/department-of-national-defence-ministere-de-la-defense-nationale) (canada.ca)<br>A government department in Canada responsible for defending national interests, contributing to international peace and security, and supporting the Canadian Forces | Armed Forces | 🇨🇦 Ottawa | 28,747 |  |
| 3 | [Canadian Armed Forces \| Forces armées canadiennes](https://www.tamtam.ai/c/canadian-armed-forces-forces-armees-canadiennes) (forces.ca)<br>Offering over 100 trades, the organization provides world-class qualifications, competitive salaries, benefits, stability, and exciting opportunities for travel, adventure, and making a difference | Armed Forces | 🇨🇦 Ottawa | 20,412 |  |
| 4 | [Celestica](https://www.tamtam.ai/c/celestica) (celestica.com)<br>Global leader in providing design, manufacturing, and supply chain solutions for aerospace, defense, communications, healthtech, and more, delivering innovative solutions for complex challenges | Technology, Information and Internet | 🇨🇦 Toronto | 16,022 | 1994 |
| 5 | [CAE](https://www.tamtam.ai/c/cae-montreal) (cae.com)<br>A global technology company digitizing the physical world, providing simulation training and critical operations support solutions for pilots, airlines, defense forces | Aviation and Aerospace Component Manufacturing | 🇨🇦 Montreal | 12,199 | 1947 |
| 6 | [MDA Space](https://www.tamtam.ai/c/mda-space) (mda.space)<br>Global leader providing robotics, communications satellites, geointelligence, and space exploration infrastructure through engineering excellence for defense and commercial missions across the world. | Defense and Space Manufacturing | 🇨🇦 Brampton | 4,478 | 1969 |
| 7 | [General Dynamics Land Systems](https://www.tamtam.ai/c/general-dynamics-land-systems) (gdls.com)<br>Design development production support enhancement of tracked and wheeled military vehicles including Abrams tank, Stryker, LAV, AJAX armored vehicles. | Defense and Space Manufacturing | 🇨🇦 | 3,536 | 1982 |
| 8 | [Seaspan ULC](https://www.tamtam.ai/c/seaspan-ulc) (seaspan.com)<br>Seaspan is involved in various marine transportation services, ship repair, shipbuilding, and commercial ferry operations on Canada's West Coast | Shipbuilding | 🇨🇦 North Vancouver | 2,508 | 1886 |
| 9 | [Magellan Aerospace Limited](https://www.tamtam.ai/c/magellan-aerospace-limited) (magellan.aero)<br>Designs and manufactures aeroengine and aerostructure components, advanced military and space products, plus engine repair and overhaul services globally. | Aviation and Aerospace Component Manufacturing | 🇨🇦 Mississauga | 2,050 |  |
| 10 | [BlackBerry](https://www.tamtam.ai/c/blackberry) (blackberry.com)<br>Provides intelligent software and services to enterprises and governments, enabling transformative applications, new revenue streams, and innovative business models with safety, security, and reliability. | Software Development | 🇨🇦 Waterloo | 2,005 |  |
| 11 | [Royal Canadian Navy \| Marine royale canadienne](https://www.tamtam.ai/c/royal-canadian-navy-marine-royale-canadienne) (linktr.ee)<br>The organization is the naval force of Canada, comprising regular, reserve sailors, and civilian employees, focusing on generating combat-capable maritime forces worldwide | Armed Forces | 🇨🇦 Ottawa | 1,857 | 1910 |
| 12 | [De Havilland Aircraft of Canada Limited](https://www.tamtam.ai/c/de-havilland-aircraft-of-canada-limited) (dehavilland.com)<br>Design and manufacture of versatile, dependable aircraft including the advanced Dash 8 turboprop, operating from a state-of-the-art Canadian facility. | Airlines and Aviation | 🇨🇦 Calgary | 1,561 |  |
| 13 | [Levio](https://www.tamtam.ai/c/levio) (levio.ca)<br>Consulting firm leveraging expert team and new technologies to deliver solutions that enhance client efficiency and profitability. | IT Services and IT Consulting | 🇨🇦 Quebec City | 1,410 | 2014 |
| 14 | [Calian Group](https://www.tamtam.ai/c/calian-group) (calian.com)<br>Employees engineer reliable solutions solving complex problems for healthcare, communications, learning, and security sectors. Diverse products, services and solutions globally. | Strategic Management Services | 🇨🇦 Ottawa | 1,396 | 1982 |
| 15 | [Defence Construction Canada](https://www.tamtam.ai/c/defence-construction-canada) (dcc-cdc.gc.ca)<br>A Crown corporation providing contracting, construction management, infrastructure, environmental, and lifecycle support services for Canada's defence requirements through five service lines | Construction | 🇨🇦 Ottawa | 1,372 | 1951 |
| 16 | [General Dynamics Mission Systems–Canada](https://www.tamtam.ai/c/general-dynamics-mission-systems-canada) (gdmissionsystems.ca)<br>A leading Canadian defense and security technology organization, focused on innovation, community involvement, and supporting military needs worldwide | Defense and Space Manufacturing | 🇨🇦 Ottawa | 1,270 |  |
| 17 | [Irving Shipbuilding](https://www.tamtam.ai/c/irving-shipbuilding) (shipsforcanada.ca)<br>Innovative shipbuilder in Nova Scotia, providing efficient building, fabrication, conversion, and servicing of vessels and offshore platforms for Canadian Navy | Shipbuilding | 🇨🇦 Halifax | 1,211 | 1918 |
| 18 | [Héroux-Devtek](https://www.tamtam.ai/c/heroux-devtek) (herouxdevtek.com)<br>Global supplier of landing gear solutions for Aerospace market Specializes in design, development, manufacture, repair, and overhaul of landing gear and components | Aviation and Aerospace Component Manufacturing | 🇨🇦 Longueuil | 1,057 | 1942 |
| 19 | [KF Aerospace](https://www.tamtam.ai/c/kf-aerospace) (kfaero.ca)<br>This company specializes in aviation services such as aircraft maintenance, modifications, air cargo operations, pilot training, and leasing for global customers | Airlines and Aviation | 🇨🇦 Kelowna | 777 |  |
| 20 | [MHI RJ Aviation Group](https://www.tamtam.ai/c/mhi-rj-aviation-group) (mhirj.com)<br>A future-minded organization in the aviation industry providing comprehensive solutions for regional aircraft operators worldwide with a strong commitment to excellence and safety | Aviation and Aerospace Component Manufacturing | 🇨🇦 Boisbriand | 717 |  |
| 21 | [CMC Electronics](https://www.tamtam.ai/c/cmc-electronics) (cmcelectronics.ca)<br>Design and manufacture of advanced avionics, display solutions, and high-performance optoelectronics for military and commercial aviation markets. | Aviation and Aerospace Component Manufacturing | 🇨🇦 Saint-Laurent | 706 | 1903 |
| 22 | [Averna](https://www.tamtam.ai/c/averna) (averna.com)<br>Global leader in Test & Quality Solutions, providing expertise in automated test equipment, vision inspection, precision assembly, and innovative solutions for various industries | Engineering Services | 🇨🇦 Montreal | 632 | 1999 |
| 23 | [Defence Research and Development Canada \| Recherche et développement pour la défense Canada](https://www.tamtam.ai/c/defence-research-and-development-canada-recherche-et-developpement-pour-la) (drdc-rddc.gc.ca)<br>Provides department of national defense and armed forces with technological advantages and scientific knowledge through seven research centers to protect interests nationwide. | Defense and Space Manufacturing | 🇨🇦 Ottawa | 603 |  |
| 24 | [IMP Aerospace & Defence](https://www.tamtam.ai/c/imp-aerospace-and-defence) (impaerospaceanddefence.com)<br>A top-rated aerospace company in Canada with over 40 years of experience providing support services on military aircraft for Canadian and International customers | Aviation and Aerospace Component Manufacturing | 🇨🇦 Enfield | 602 |  |
| 25 | [Davie](https://www.tamtam.ai/c/davie) (davie.ca)<br>A leading Canadian shipbuilder offering complex engineering solutions with high-capacity fabrication capabilities for various industries, from oil & gas to defense | Shipbuilding | 🇨🇦 Lévis | 600 | 1825 |
| 26 | [PAL Aerospace](https://www.tamtam.ai/c/pal-aerospace) (palaerospace.com)<br>A Canadian-owned global aerospace and defence company specializing in intelligence, surveillance, in-service support, aircraft engineering/modification, and crew resource management training | Airlines and Aviation | 🇨🇦 St. John's | 596 |  |
| 27 | [General Dynamics Land Systems–Canada](https://www.tamtam.ai/c/general-dynamics-land-systems-canada) (gdlscanada.com)<br>Global leader in providing innovative land and amphibious combat vehicle solutions through cutting-edge technologies in machining, electronics, software development, and systems integration | Defense and Space Manufacturing | 🇨🇦 London | 576 |  |
| 28 | [Canadian Army \| Armée canadienne](https://www.tamtam.ai/c/canadian-army-armee-canadienne) (canada.ca)<br>The Canadian Army is the land component of the Canadian Armed Forces, producing well-trained soldiers ready for operations at home and abroad | Armed Forces | 🇨🇦 Ottawa | 565 |  |
| 29 | [Top Aces](https://www.tamtam.ai/c/top-aces) (topaces.com)<br>Providing advanced adversary air and JTAC training to armed forces to enhance operational readiness, save costs, and extend military aircraft fleet lifecycle | Military and International Affairs | 🇨🇦 Dorval | 547 | 2000 |
| 30 | [Vector Aerospace](https://www.tamtam.ai/c/vector-aerospace) (standardaero.com)<br>Global provider of aviation maintenance, repair, and overhaul services for gas turbine engines, components, and helicopter airframes. | Aviation and Aerospace Component Manufacturing | 🇨🇦 Toronto | 527 | 1998 |
| 31 | [Marmen inc.](https://www.tamtam.ai/c/marmen-inc) (marmeninc.com)<br>High-precision machining, fabrication, mechanical assembly, and design for diverse global markets including wind tower production, aviation, hydropower, mining, and aerospace applications. | Manufacturing | 🇨🇦 Trois-Rivières | 524 | 1972 |
| 32 | [INO](https://www.tamtam.ai/c/ino) (luqia.ca)<br>Leader in optics and photonics technology innovation, providing integrated solutions to businesses in various industries through R&D contracts and specialized expertise | Research Services | 🇨🇦 Quebec City | 504 | 1988 |
| 33 | [Royal Canadian Air Force \| Aviation royale canadienne](https://www.tamtam.ai/c/royal-canadian-air-force-aviation-royale-canadienne) (canada.ca)<br>The Canadian Armed Forces offers over 100 trades, world-class qualifications, competitive pay, travel opportunities, and a chance to make a difference | Armed Forces | 🇨🇦 Ottawa | 485 |  |
| 34 | [IMT Group](https://www.tamtam.ai/c/imt-group) (imtcorporation.com)<br>A leading manufacturer and supplier to various industries, offering closed-die forged components, product innovation, advanced technology, and quality assurance processes | Machinery Manufacturing | 🇨🇦 Kitchener | 476 | 1914 |
| 35 | [JSI](https://www.tamtam.ai/c/jsi-ottawa) (jsitelecom.com)<br>A trusted provider of lawful intelligence and AI-enabled analytics solutions, helping law enforcement and security agencies globally with critical missions | Software Development | 🇨🇦 Ottawa | 470 | 1979 |
| 36 | [MHI Canada Aerospace, Inc.](https://www.tamtam.ai/c/mhi-canada-aerospace-inc) (mhi.com)<br>A Tier 1 manufacturer of aircraft structures and assemblies, specializing in Bombardier business aircraft components with a focus on precision and on-time delivery | Aviation and Aerospace Component Manufacturing | 🇨🇦 Mississsauga | 449 | 2006 |
| 37 | [AAA Canada](https://www.tamtam.ai/c/aaa-canada) (aaa-canada.ca)<br>Providing subcontracting, technical assistance, and productivity solutions in Aerospace, Ground Transportation, and Defense sectors worldwide through international expertise | Outsourcing and Offshoring Consulting | 🇨🇦 Montreal | 440 | 2008 |
| 38 | [Avmax Group](https://www.tamtam.ai/c/avmax-group) (avmax.com)<br>A global provider of aviation solutions since 1976, offering services such as aircraft leasing, airline operations, maintenance, repairs, engineering, and more | Airlines and Aviation | 🇨🇦 Calgary | 434 | 1976 |
| 39 | [Mubea Cyclone Manufacturing](https://www.tamtam.ai/c/mubea-cyclone-manufacturing) (cyclonemfg.com)<br>Vertically integrated provider of aerospace component manufacturing, including machining, sheet metal fabrication, tube bending, welding, and surface treatment processes for major OEMs | Aviation and Aerospace Component Manufacturing | 🇨🇦 Mississauga | 425 | 1964 |
| 40 | [Babcock Canada Inc.](https://www.tamtam.ai/c/babcock-canada-inc) (babcockcanada.com)<br>A leading international Aerospace, Defence, and Security company providing submarine sustainment, aviation services, aerial wildfire suppression, air medical transportation, and aircrew training | Defense and Space Manufacturing | 🇨🇦 Ottawa | 407 | 2008 |
| 41 | [Execaire Aviation](https://www.tamtam.ai/c/execaire-aviation) (execaireaviation.com)<br>Provider of aviation and technical support solutions to business aircraft OEMs, owners, operators, and airlines, offering full-service sales, management, charter, and maintenance capabilities | Airlines and Aviation | 🇨🇦 Dorval | 400 | 1955 |
| 42 | [Cascade Aerospace Inc.](https://www.tamtam.ai/c/cascade-aerospace-inc) (cascadeaerospace.com)<br>Leading aerospace contractor in Canada offering integrated aircraft support programs for OEMs, military, government, and commercial clients Operating unit of IMP Aerospace & Defence | Aviation and Aerospace Component Manufacturing | 🇨🇦 Abbotsford | 390 | 2000 |
| 43 | [Canadian Helicopters Limited](https://www.tamtam.ai/c/canadian-helicopters-limited) (canadianhelicopters.com)<br>A diversified company in Canada providing helicopter charter, maintenance, and flight training services to various industries in challenging environments | Aviation and Aerospace Component Manufacturing | 🇨🇦 Les Cèdres | 388 | 1947 |
| 44 | [NovAtel](https://www.tamtam.ai/c/novatel) (novatel.com)<br>Develops global technology solutions for assured autonomy and precise positioning on land, sea, and air, critical for various industries. | Appliances, Electrical, and Electronics Manufacturing | 🇨🇦 Calgary | 380 |  |
| 45 | [Fleetway Inc.](https://www.tamtam.ai/c/fleetway-inc) (fleetway.ca)<br>Comprehensive engineering, technical, logistics, training, translation, and management services with a focus on quality, safety, and customer solutions. | Shipbuilding | 🇨🇦 Dartmouth | 373 | 1984 |
| 46 | [OSI Maritime Systems](https://www.tamtam.ai/c/osi-maritime-systems) (osimaritime.com)<br>A provider of integrated navigation and tactical solutions for naval operations, offering systems for warships, submarines, and small craft globally | Defense and Space Manufacturing | 🇨🇦 Burnaby | 358 | 1977 |
| 47 | [Haivision](https://www.tamtam.ai/c/haivision) (haivision.com)<br>Global provider of real-time video networking and collaboration solutions, offering secure, low-latency live video streaming at a global scale Open source SRT protocol | Technology, Information and Media | 🇨🇦 Montreal | 336 | 2004 |
| 48 | [Kraken Robotics](https://www.tamtam.ai/c/kraken-robotics) (krakenrobotics.com)<br>A marine technology company specializing in designing and marketing advanced sensors for military and commercial Unmanned Underwater Vehicles, including Synthetic Aperture Sonar technology | Maritime Transportation | 🇨🇦 Mount Pearl Park | 334 | 2012 |
| 49 | [ADGA Group](https://www.tamtam.ai/c/adga-group) (adga.ca)<br>Canadian defence company providing cybersecurity, simulation, systems engineering, and program management services for government and industry clients. | Professional Services | 🇨🇦 Ottawa | 330 | 1967 |
| 50 | [AirBoss of America](https://www.tamtam.ai/c/airboss-of-america) (airboss.com)<br>A group of businesses specializing in rubber compounding, engineering, and military products, offering innovative solutions and high-quality rubber products for various applications | Chemical Manufacturing | 🇨🇦 Newmarket | 327 | 1989 |

## How this list is built

Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Nov 12, 2026.

## More company lists in Canada

- [The largest companies in Canada](https://www.tamtam.ai/l/largest-companies-canada) (11,083)
- [Multinational companies in Canada](https://www.tamtam.ai/l/multinational-companies-canada) (1,934)
- [Manufacturers in Canada](https://www.tamtam.ai/l/manufacturers-canada) (946)
- [Retail chains in Canada](https://www.tamtam.ai/l/retail-chains-canada) (851)
- [Critical infrastructure operators in Canada](https://www.tamtam.ai/l/critical-infrastructure-operators-canada) (767)
- [Public sector organisations in Canada](https://www.tamtam.ai/l/public-sector-organisations-canada) (699)
- [Financial services firms in Canada](https://www.tamtam.ai/l/financial-services-firms-canada) (687)
- [Companies with in-house R&D in Canada](https://www.tamtam.ai/l/r-and-d-companies-canada) (678)
- [Logistics companies in Canada](https://www.tamtam.ai/l/logistics-companies-canada) (593)
- [Truck Transportation companies in Canada](https://www.tamtam.ai/l/truck-transportation-companies-canada) (581)
- [SaaS companies in Canada](https://www.tamtam.ai/l/saas-companies-canada) (543)
- [Hardware manufacturers in Canada](https://www.tamtam.ai/l/hardware-companies-canada) (502)
- [Energy companies in Canada](https://www.tamtam.ai/l/energy-companies-canada) (497)
- [Software Development companies in Canada](https://www.tamtam.ai/l/software-development-companies-canada) (484)
- [Professional services firms in Canada](https://www.tamtam.ai/l/professional-services-firms-canada) (481)
- [IT Services and IT Consulting companies in Canada](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-canada) (477)
- [Transportation, Logistics, Supply Chain and Storage companies in Canada](https://www.tamtam.ai/l/transportation-logistics-supply-chain-and-storage-companies-canada) (464)
- [Distributors and wholesalers in Canada](https://www.tamtam.ai/l/distributors-and-wholesalers-canada) (452)
- [Financial Services companies in Canada](https://www.tamtam.ai/l/financial-services-companies-canada) (432)
- [Healthcare providers in Canada](https://www.tamtam.ai/l/healthcare-providers-canada) (416)
- [Construction companies in Canada](https://www.tamtam.ai/l/construction-companies-canada) (391)
- [Oil and Gas companies in Canada](https://www.tamtam.ai/l/oil-and-gas-companies-canada) (380)
- [Companies with a mobile app in Canada](https://www.tamtam.ai/l/companies-with-mobile-app-canada) (367)
- [Retail companies in Canada](https://www.tamtam.ai/l/retail-companies-canada) (358)

## The same list elsewhere in Canada

- [Aerospace and defence companies in Ontario](https://www.tamtam.ai/l/aerospace-and-defense-companies-ontario) (61)
- [Aerospace and defence companies in the province of Quebec](https://www.tamtam.ai/l/aerospace-and-defense-companies-province-of-quebec) (34)

## The same list elsewhere

- [Aerospace and defence companies in the world](https://www.tamtam.ai/l/aerospace-and-defense-companies-in-the-world) (6,084)

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Source: https://www.tamtam.ai/l/aerospace-and-defense-companies-canada