
Babcock International
Naval submarine and warship support, nuclear engineering, land, and aviation services.
Babcock International traces its roots back to 1891 and has spent more than a century as one of the UK's core defense and engineering support companies, though its current shape came together through decades of acquisition and consolidation into what is now a London listed group split across four sectors: Marine, Nuclear, Land, and Aviation. The Marine business is built around Devonport, the Royal Navy's only site capable of carrying out deep maintenance and refueling on nuclear powered submarines, where Babcock has handled multi year overhaul periods on Astute and Vanguard-class boats and is investing roughly seven hundred fifty million pounds to modernize the dockyard's dry docks and logistics ahead of the Dreadnought-class ballistic missile submarines entering service. At Rosyth, the company is building the Royal Navy's Type 31 general purpose frigates under a contract awarded in 2019, with the first two hulls, Venturer and Active, already in the water and later ships following in series production, a program that has run over cost in places but remains central to the Navy's frigate fleet renewal. Babcock also supports Type 23 frigates and other surface ships through their service lives and builds specialist naval equipment such as weapons handling systems, magazine machinery, and gas handling systems for both defense and civil customers.
The Nuclear sector covers civil and defense nuclear work outside shipbuilding, including decommissioning support, asset management, and engineering across UK nuclear sites, work that overlaps with Babcock's role supporting infrastructure tied to the UK's independent nuclear deterrent through its Marine and Nuclear businesses together. Land brings vehicle engineering, fleet support, and equipment maintenance for armies, drawing on Babcock's long history maintaining British Army vehicles and providing specialist training. Aviation covers air operations and support, including maintenance and mission critical services for fixed wing and rotary aircraft, along with search and rescue and training contracts run for government customers in the UK and abroad. Across all four sectors, Babcock frames much of its work as through life support, engineering and technical services that keep military equipment running for decades rather than one time equipment sales, a model that distinguishes it from platform manufacturers like BAE Systems even where the two companies work the same programs.
Babcock's footprint extends well beyond Britain, with operations across Australia, Canada, France, and South Africa, and revenue split between UK Ministry of Defence contracts and international government and commercial customers. The company employs close to twenty seven thousand people and trades on the London Stock Exchange under the ticker BAB. Its position at Devonport and Rosyth in particular makes it one of the handful of companies with direct hands on access to the UK's submarine and surface fleets, a role that has grown more strategically important as the AUKUS partnership between the UK, US, and Australia pushes new submarine construction and support demand through the 2030s and beyond.
- Naval ship and submarine through-life support
- Warship new-build (Type 31 frigate)
- Nuclear submarine maintenance and refueling
- Nuclear decommissioning and asset management
- Land vehicle fleet support
- Aviation maintenance and training
- Specialist defense equipment manufacturing
General purpose frigate built for the Royal Navy at Rosyth.
Multi-year overhaul periods for Royal Navy attack submarines at Devonport.
Dockyard modernization ahead of the UK's next ballistic missile submarines.
The Royal Navy's only site for nuclear submarine deep maintenance and refueling.
Specialist shipboard equipment for defense and civil customers.
Maintenance and engineering support for British Army vehicles.
Fixed-wing and rotary aircraft support, including search and rescue contracts.
Engineering and lifecycle support across UK nuclear sites.
Export Control
ITAR · EAR
Programs & Platforms
$18,371,710 total contract value across 7 awards · $5,930,900 actually paid to date · Source: USASpending.gov
Contract value is total awarded ceiling, including option years that may never be exercised — not a single-year budget figure.
- naics 336611Ship Building and RepairingPRIMARY
- naics 336612Boat Building
- psc 1905Combat Ships and Landing Vessels
- psc 1910Ocean Vessels, Except Combat
- naics 336414Guided Missile and Space Vehicle Manufacturing
- naics 541715Research and Development in the Physical, Engineering, and Life Sciences
- psc 1410Guided Missiles
- psc AC12National Defense R&D Services
- naics 336992Military Armored Vehicle, Tank, and Tank Component Manufacturing
- naics 336120Heavy Duty Truck Manufacturing
- psc 2350Combat, Assault, and Tactical Vehicles, Tracked
- psc 2320Trucks and Truck Tractors, Wheeled
- naics 336411Aircraft Manufacturing
- naics 336412Aircraft Engine and Engine Parts Manufacturing
- psc 1560Airframe Structural Components
- psc 1510Aircraft, Fixed Wing
London, United Kingdom
Ownership
Publicly traded · LSE: BAB
Annual Revenue
$6.5B (FY2025)