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.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
Bombardierbombardier.com
A global leader in designing, manufacturing, and servicing exceptional business jets with innovative cabin design, performance, and reliability for diverse clientele worldwide |
30,000 | |||
| 2 |
Department of National Defence/Ministère de la défense nationalecanada.ca
A government department in Canada responsible for defending national interests, contributing to international peace and security, and supporting the Canadian Forces |
28,747 | |||
| 3 |
Canadian Armed Forces | Forces armées canadiennesforces.ca
Offering over 100 trades, the organization provides world-class qualifications, competitive salaries, benefits, stability, and exciting opportunities for travel, adventure, and making a difference |
20,412 | |||
| 4 |
Celesticacelestica.com
Global leader in providing design, manufacturing, and supply chain solutions for aerospace, defense, communications, healthtech, and more, delivering innovative solutions for complex challenges |
16,022 | |||
| 5 | 12,199 | ||||
| 6 | 4,478 | ||||
| 7 |
General Dynamics Land Systemsgdls.com
Design development production support enhancement of tracked and wheeled military vehicles including Abrams tank, Stryker, LAV, AJAX armored vehicles. |
3,536 | |||
| 8 |
Seaspan ULCseaspan.com
Seaspan is involved in various marine transportation services, ship repair, shipbuilding, and commercial ferry operations on Canada's West Coast |
2,508 | |||
| 9 |
Magellan Aerospace Limitedmagellan.aero
Designs and manufactures aeroengine and aerostructure components, advanced military and space products, plus engine repair and overhaul services globally. |
2,050 | |||
| 10 |
BlackBerryblackberry.com
Provides intelligent software and services to enterprises and governments, enabling transformative applications, new revenue streams, and innovative business models with safety, security, and reliability. |
2,005 | |||
| 11 |
Royal Canadian Navy | Marine royale canadiennelinktr.ee
The organization is the naval force of Canada, comprising regular, reserve sailors, and civilian employees, focusing on generating combat-capable maritime forces worldwide |
1,857 | |||
| 12 |
De Havilland Aircraft of Canada Limiteddehavilland.com
Design and manufacture of versatile, dependable aircraft including the advanced Dash 8 turboprop, operating from a state-of-the-art Canadian facility. |
1,561 | |||
| 13 | 1,410 | ||||
| 14 |
Calian Groupcalian.com
Employees engineer reliable solutions solving complex problems for healthcare, communications, learning, and security sectors. Diverse products, services and solutions globally. |
1,396 | |||
| 15 |
Defence Construction Canadadcc-cdc.gc.ca
A Crown corporation providing contracting, construction management, infrastructure, environmental, and lifecycle support services for Canada's defence requirements through five service lines |
1,372 | |||
| 16 |
General Dynamics Mission Systems–Canadagdmissionsystems.ca
A leading Canadian defense and security technology organization, focused on innovation, community involvement, and supporting military needs worldwide |
1,270 | |||
| 17 |
Irving Shipbuildingshipsforcanada.ca
Innovative shipbuilder in Nova Scotia, providing efficient building, fabrication, conversion, and servicing of vessels and offshore platforms for Canadian Navy |
1,211 | |||
| 18 |
Héroux-Devtekherouxdevtek.com
Global supplier of landing gear solutions for Aerospace market Specializes in design, development, manufacture, repair, and overhaul of landing gear and components |
1,057 | |||
| 19 |
KF Aerospacekfaero.ca
This company specializes in aviation services such as aircraft maintenance, modifications, air cargo operations, pilot training, and leasing for global customers |
777 | |||
| 20 |
MHI RJ Aviation Groupmhirj.com
A future-minded organization in the aviation industry providing comprehensive solutions for regional aircraft operators worldwide with a strong commitment to excellence and safety |
717 | |||
| 21 |
CMC Electronicscmcelectronics.ca
Design and manufacture of advanced avionics, display solutions, and high-performance optoelectronics for military and commercial aviation markets. |
706 | |||
| 22 |
Avernaaverna.com
Global leader in Test & Quality Solutions, providing expertise in automated test equipment, vision inspection, precision assembly, and innovative solutions for various industries |
632 | |||
| 23 |
Defence Research and Development Canada | Recherche et développement pour la défense Canadadrdc-rddc.gc.ca
Provides department of national defense and armed forces with technological advantages and scientific knowledge through seven research centers to protect interests nationwide. |
603 | |||
| 24 |
IMP Aerospace & Defenceimpaerospaceanddefence.com
A top-rated aerospace company in Canada with over 40 years of experience providing support services on military aircraft for Canadian and International customers |
602 | |||
| 25 | 600 | ||||
Want more companies than this list?This page shows the largest ones only. Connect to Tamtam to see every company that matches, filter by size, industry or growth, and reach their decision-makers. | |||||
| 26 |
PAL Aerospacepalaerospace.com
A Canadian-owned global aerospace and defence company specializing in intelligence, surveillance, in-service support, aircraft engineering/modification, and crew resource management training |
596 | |||
| 27 |
General Dynamics Land Systems–Canadagdlscanada.com
Global leader in providing innovative land and amphibious combat vehicle solutions through cutting-edge technologies in machining, electronics, software development, and systems integration |
576 | |||
| 28 |
Canadian Army | Armée canadiennecanada.ca
The Canadian Army is the land component of the Canadian Armed Forces, producing well-trained soldiers ready for operations at home and abroad |
565 | |||
| 29 |
Top Acestopaces.com
Providing advanced adversary air and JTAC training to armed forces to enhance operational readiness, save costs, and extend military aircraft fleet lifecycle |
547 | |||
| 30 |
Vector Aerospacestandardaero.com
Global provider of aviation maintenance, repair, and overhaul services for gas turbine engines, components, and helicopter airframes. |
527 | |||
| 31 |
Marmen inc.marmeninc.com
High-precision machining, fabrication, mechanical assembly, and design for diverse global markets including wind tower production, aviation, hydropower, mining, and aerospace applications. |
524 | |||
| 32 | 504 | ||||
| 33 |
Royal Canadian Air Force | Aviation royale canadiennecanada.ca
The Canadian Armed Forces offers over 100 trades, world-class qualifications, competitive pay, travel opportunities, and a chance to make a difference |
485 | |||
| 34 |
IMT Groupimtcorporation.com
A leading manufacturer and supplier to various industries, offering closed-die forged components, product innovation, advanced technology, and quality assurance processes |
476 | |||
| 35 |
JSIjsitelecom.com
A trusted provider of lawful intelligence and AI-enabled analytics solutions, helping law enforcement and security agencies globally with critical missions |
470 | |||
| 36 |
MHI Canada Aerospace, Inc.mhi.com
A Tier 1 manufacturer of aircraft structures and assemblies, specializing in Bombardier business aircraft components with a focus on precision and on-time delivery |
449 | |||
| 37 |
AAA Canadaaaa-canada.ca
Providing subcontracting, technical assistance, and productivity solutions in Aerospace, Ground Transportation, and Defense sectors worldwide through international expertise |
440 | |||
| 38 |
Avmax Groupavmax.com
A global provider of aviation solutions since 1976, offering services such as aircraft leasing, airline operations, maintenance, repairs, engineering, and more |
434 | |||
| 39 |
Mubea Cyclone Manufacturingcyclonemfg.com
Vertically integrated provider of aerospace component manufacturing, including machining, sheet metal fabrication, tube bending, welding, and surface treatment processes for major OEMs |
425 | |||
| 40 |
Babcock Canada Inc.babcockcanada.com
A leading international Aerospace, Defence, and Security company providing submarine sustainment, aviation services, aerial wildfire suppression, air medical transportation, and aircrew training |
407 | |||
| 41 |
Execaire Aviationexecaireaviation.com
Provider of aviation and technical support solutions to business aircraft OEMs, owners, operators, and airlines, offering full-service sales, management, charter, and maintenance capabilities |
400 | |||
| 42 |
Cascade Aerospace Inc.cascadeaerospace.com
Leading aerospace contractor in Canada offering integrated aircraft support programs for OEMs, military, government, and commercial clients Operating unit of IMP Aerospace & Defence |
390 | |||
| 43 |
Canadian Helicopters Limitedcanadianhelicopters.com
A diversified company in Canada providing helicopter charter, maintenance, and flight training services to various industries in challenging environments |
388 | |||
| 44 |
NovAtelnovatel.com
Develops global technology solutions for assured autonomy and precise positioning on land, sea, and air, critical for various industries. |
380 | |||
| 45 |
Fleetway Inc.fleetway.ca
Comprehensive engineering, technical, logistics, training, translation, and management services with a focus on quality, safety, and customer solutions. |
373 | |||
| 46 |
OSI Maritime Systemsosimaritime.com
A provider of integrated navigation and tactical solutions for naval operations, offering systems for warships, submarines, and small craft globally |
358 | |||
| 47 |
Haivisionhaivision.com
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 |
336 | |||
| 48 |
Kraken Roboticskrakenrobotics.com
A marine technology company specializing in designing and marketing advanced sensors for military and commercial Unmanned Underwater Vehicles, including Synthetic Aperture Sonar technology |
334 | |||
| 49 |
ADGA Groupadga.ca
Canadian defence company providing cybersecurity, simulation, systems engineering, and program management services for government and industry clients. |
330 | |||
| 50 |
AirBoss of Americaairboss.com
A group of businesses specializing in rubber compounding, engineering, and military products, offering innovative solutions and high-quality rubber products for various applications |
327 | |||
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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
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The same list elsewhere in Canada
- Aerospace and defence companies in Ontario 61
- Aerospace and defence companies in the province of Quebec 34