Source: https://tendernation.io/opportunities/01a13bce-2d34-71dd-bed2-64985bdb45b7/715070450-sonar-2054ir-in-service-support-iss awarded GB direct award procedure # 715070450 sonar 2054ir in-service support (iss) [Defence Equipment and Support](https://tendernation.io/buyers/defence-equipment-and-support) Estimated value Not stated Published 22 Apr 2026 Deadline Rolling deadline ## About this tender 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 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. Source Find a Tender (UK) · Notice ocds-h6vhtk-0562bf-2026-04-22T11:29:56+01:00 [View official notice](https://www.find-tender.service.gov.uk/Notice/ocds-h6vhtk-0562bf-2026-04-22T11:29:56+01:00) Never miss a tender like this again Get AI summaries, deadline alerts and a bid pipeline for tenders matched to your business. Free to start. [Track tenders free](https://tendernation.io/register) [Buyer profile Defence Equipment and Support: past awards and live tenders](https://tendernation.io/buyers/defence-equipment-and-support) ## More tenders like this [Bannister Sports Centre Athletic Track Soft Market Testing Exercise · Harrow Council · 38 days left · 26 Nov 2026](https://tendernation.io/opportunities/01a1540d-d9e4-71cb-ad57-1603e9042fec/bannister-sports-centre-athletic-track-soft-market-testing-exercise) [Post Office Branch - Porthleven · Post Office Limited · 87 days left · 13 Jan 2027](https://tendernation.io/opportunities/01a15476-5f26-7105-9baf-83f6228041ef/post-office-branch-porthleven) [Post Office Branch - Newlyn · Post Office Limited · 87 days left · 13 Jan 2027](https://tendernation.io/opportunities/01a15476-5f73-73e7-863c-621698162391/post-office-branch-newlyn) [Post Office Branch - Brabazon Road · Post Office Limited · 7 days left · 25 Oct 2026](https://tendernation.io/opportunities/01a15476-5fc3-71dc-b775-e86e4d62cd65/post-office-branch-brabazon-road) [Norwich City Verges Mowing 2026 · Norse Eastern Ltd · 30 days left · 18 Nov 2026](https://tendernation.io/opportunities/01a15476-5fd9-70eb-b920-a66dc3e661e1/norwich-city-verges-mowing-2026) [Asbestos Management Framework · Home Group · 25 days left · 13 Nov 2026](https://tendernation.io/opportunities/01a15476-5fff-736e-ae2e-0c8a400c7297/asbestos-management-framework)