Award

SONAR 2054IR IN-SERVICE SUPPORT (ISS) - UK 5 (Transparency Notice)

  • Defence Equipment and Support

UK5: Transparency notice - Procurement Act 2023 - view information about notice types

Notice identifier: 2025/S 000-041558

Procurement identifier (OCID): ocds-h6vhtk-0562bf

Published 21 July 2025, 11:15am



Scope

Description

The Secretary of State for Defence (the Authority), through the Sonar and Maritime Sensors (SaMS) Project Team within Defence Equipment & Support (DE&S), intends to place a 6-year contract, with an estimated total value, £8.7M (incl VAT) with Lockheed Martin UK (LMUK) for the In-Service Support of the current Sonar 2054 Inboard Replacement (IR) system fitted within the Royal Navy Submarine Fleet.

The support activities will include but not be limited to: a) programme and contract management b) provision of Post Design Services c) management of equipment obsolescence which may include technology refresh activity d) provision of on-site engineering and testing e) provision of spares including shipping and fitting f) provision and management of equipment repair activities g) provision of disposal services h) other support related activities requiring site visits, i) additional ad-hoc tasking.


Contract 1

Supplier

Contract value

  • £8,300,000 excluding VAT
  • £8,700,000 including VAT

Above the relevant threshold

Earliest date the contract will be signed

31 March 2026

Contract dates (estimated)

  • 1 April 2026 to 31 March 2032
  • 6 years

Main procurement category

Services

CPV classifications

  • 50660000 - Repair and maintenance services of military electronic systems
  • 38113000 - Sonars

Other information

Description of risks to contract performance

Advances in technology or possible component obsolescence/failure during the life of the contract could leave the equipment in its current form unable to perform to the operational level required and jeopardise the satisfactory performance of the contract. A mitigation to this risk would be the introduction of a Technology Refresh to the S2054IR to maintain the safe operation of the equipment within the lifetime of this contract. This may require a contract modification in accordance with Schedule 8 Paragraph 10, or Paragraph 5 and Paragraph 6(b)(ii) of the Procurement Act 2023.

Conflicts assessment prepared/revised

Yes


Procedure

Procedure type

Direct award

Special regime

Defence and security

Direct award justification

  • Single supplier - technical reasons
  • Defence and security - qualifying defence contract new award rather than modification

It is considered that the direct award of the contract is lawful pursuant to Section 41 and paragraph 6 of Schedule 5 of the Procurement Act 2023 for single suppliers - technical reasons. The proposed In-Service Support is a continuation of the existing support provided by LMUK under the current contract.

LMUK, are the Original Equipment Manufacturer (OEM) for S2054IR, and the only economic operator that has access to the LMUK designs, drawings and technical data which is necessary to fulfil the requirement. LMUK designed, developed and installed the Sonar 2054IR system across all the UK Ministry of Defence's platforms and shore installations and has supported the system since its installation & holds the necessary specialist technical knowhow to fulfil the requirement. S2054IR is essential to the safety of the V class platforms at sea and it is not considered that another provider could meet the required level of support without access to the referenced technical data and know-how, introducing an unacceptable level of technical, safety and security risk to MOD capability.


Supplier

Lockheed Martin UK Ltd

  • Companies House: 02372738

Building 7000 Langstone Park, Langstone Road

Havant

PO9 1SW

United Kingdom

Region: UKJ35 - South Hampshire

Small or medium-sized enterprise (SME): No

Voluntary, community or social enterprise (VCSE): No

Contract 1


Contracting authority

Defence Equipment and Support

  • Public Procurement Organisation Number: PVRL-5831-GLMM

MOD Abbey Wood

Bristol

BS34 8JH

United Kingdom

Region: UKK12 - Bath and North East Somerset, North Somerset and South Gloucestershire

Organisation type: Public authority - central government