Submarines tenders and contracts

Search submarines notices across UK procurement portals. Filter by buyer, value and deadline, and set an alert for new opportunities.

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656 results matching, submarines

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Stale Pre-tender, closed 19 August 2026Published 1 June 2026
715862521 - Hydraulics Supply and Support (HSS) - UK2
Ministry of DefenceHydraulic valve actuators
£45,833,333.33
Stale Pre-tenderPublished 1 June 2026
715862519 - Atmosphere Monitoring System (AMS)
Ministry of DefenceSubmarines
£30,833,333
Stale Pre-tenderPublished 29 May 2026
Cables and Connectors - PN
Ministry of DefenceCable connectors
£16,666,666
Closed tender, closed 10 July 2026Published 29 May 2026
In-Service Support for Main Circulating Water Pumps (MCWP)
Ministry of DefenceCooling-water pumps
£21,000,000
Stale Pre-tenderPublished 22 May 2026
715859476 - Specialist Valves - UK1
Ministry of DefenceSubmarines
£70,000,000
Stale Pre-tender, closed 2 September 2026Published 22 May 2026
715860474 - Submarine Switchgear and Distribution - UK2
Ministry of DefenceStrategic submarine nuclear fuelled
£11,727,500
Stale Pre-tender, closed 27 August 2026Published 22 May 2026
715862522 - Control and Indication (C&I) - UK2
Ministry of DefenceElectronic and electrical spare parts for military vehicles
£66,666,666.67
Stale Pre-tenderPublished 22 May 2026
Electrical Conversion & Support (ECS) - UK1
Ministry of DefenceSubmarines
£16,666,666.67
Awarded contract, expiring 30 September 2031Published 28 April 2026
715820471 - Pressure Hull Penetrators and Associated Cables and Connectors (PCC) - UK5
Ministry of DefenceSupplier(s) AMETEK SCPStrategic submarine nuclear fuelledAwarded 28 April 2026
£18,206,000
Closed tender, closed 19 May 2026Published 22 April 2026
Submarine Infrastructure Technical Support (SITS)
Ministry of Defence
Value not stated
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Closed tender, closed 12 June 2026Published 20 April 2026
715838592 - Internal Communications System (ICS) - Technical Refresh (TS)
Ministry of Defence
Value not stated
Stale Pre-tender, closed 12 June 2026Published 17 April 2026
715838592 - Internal Communications System (ICS) - Technical Refresh (TS) - RFI
Ministry of DefenceCommunications network
£100,000,000
Closed tender, closed 16 July 2026Published 13 April 2026
715724483_V2 The Provision of Nuclear Site Safety Justification (NSSJ) Services at HMNB Devonport
Ministry of DefenceProject management consultancy services
£10,160,000
Awarded contract, expiring 27 February 2032Published 9 April 2026
P8 Anti-Submarine Warfare Finish (P8-ASWF) Demonstration and Manufacture
Defence Equipment and Support : Ministry of DefenceSupplier(s) BAE Systems Surface Ships LimitedWeapons, ammunition and associated partsAwarded 9 April 2026
£19,200,000
Stale Pre-tenderPublished 1 April 2026
715820471 - Pressure Hull Penetrators and Associated Cables and Connectors (PCC) - UK5
Ministry of DefenceElectrical components
£18,206,000
Closed tender, closed 27 April 2026Published 1 April 2026
Fibre Optic Compass System (FOCS) In-Service Support Contract
Ministry of Defence
Value not stated
Stale Pre-tender, closed 27 April 2026Published 19 March 2026
Fibre Optic Compass System (FOCS) In-Service Support (ISS)
Defence Equipment and Support : Ministry of DefenceNavigation equipment
£5,000,000
Awarded contract, expiring 30 April 2031Published 18 March 2026
Pipeline Repair and Subsea Intervention Club
Mutual Energy LimitedSupplier(s) Equinor Energy ASRepair and maintenance services of machineryAwarded 18 March 2026
£550,000
Open tender, closing in 10 monthsPublished 12 March 2026
Supply and Support for Valves and their Actuators
Ministry of Defence
£65,000,000
Stale Pre-tender, closed 11 March 2026Published 11 March 2026
713431451-Supply and Support for General Valves and Actuators-UK4
Ministry of DefenceHull and mechanical spare parts for warships
£65,000,000

Top buyers

The buyers publishing the most submarines notices, and what those contracts are worth.

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BuyersCountValue

Ministry of Defence
474
£24.2bn
Defence Equipment and Support : Ministry of Defence
130
£3.6bn
National Museum of the Royal Navy
24
£1.6m
EirGrid plc
11
£3.7m
Scottish Hydro Electric Power Distribution plc
10
£130.0m
Department for Transport (DFT)
9
£21.8m
Interconnector Services Limited
9
£6.3m
National Grid Electricity Transmission plc
7
£7.9bn
LEIDOS SUPPLY, LIMITED
5
£12.0m
Crown Commercial Service
4
£1.5m

Trend over time

Notice volume for submarines searches published over time.

Top suppliers

Suppliers who have won the most submarines contracts, and what those awards were worth.

View all suppliers

SuppliersCountValue

Devonport Royal Dockyard Ltd
13
£4.6bn
BAE Systems Surface Ships Limited
11
£226.7m
BABCOCK INTEGRATED TECHNOLOGY LIMITED
10
£429.2m
Defence Support (International) Ltd
8
£1.5m
CMCA UK Limited
8
£629.7k
Thales Uk Ltd
7
£5.9bn
Carbon60 Limited
7
£26.2m
Lockheed Martin UK Ltd
6
£90.0m
Analox Military Systems Ltd
6
£66.5m
Babcock International Group plc
5
£56.0m

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