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Official procurement procedure

Platform Data Management Systems 4 (PDM4) Obsolescence Recovery

Parts of radio and radar equipment
UK
Published value
Not published
Submission deadline Not published
Lots published1
Procurement Executive Summary
AI & Search Synopsis
Generated from official OCDS record
Tenderline Synopsis: Ministry of Defence: "Platform Data Management Systems 4 (PDM4) Obsolescence Recovery". Published status: complete. Published value: Value not published. 1 published lot. Submission deadline not published. See the official notice for participation instructions.
Contracting AuthorityMinistry of DefenceScope & CategoriesNot publishedSubmission Window
complete
No deadline published
Submission GatewayDirect notice routeLegal Basis & RegimeStandard procurementEstimated Value (exc. VAT)Not published
Bidder Intelligence · Authority Profile: Ministry of Defence
Market Analytics
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Derived from OCDS awards & bid statistics
Published history for Ministry of Defence. These figures describe retained records, not a forecast of bids or a measure of buyer bias.
Average Price Reduction
Not availableInsufficient comparable data
Requires at least 5 comparable procedures
Competition Density
3.3Bids / Report
64.6% of reports have one bid
Supplier ConcentrationNo estimate
Insufficient attributable awardsNo concentration estimate available
Payment Terms
Check noticePublished terms
Payment obligations depend on the applicable regime and contract. Consult the official documents.
Coverage: 249 active published awards; 99 bid reports (which may be per lot). Supplier values exclude multi-supplier awards, frameworks and DPS, and use GBP only. They are published award values, not payments. Price reduction compares single-lot, single-award, single-supplier GBP procedures with explicitly non-framework/non-DPS status; increases remain in the average. Unpublished data stays unknown. Awarded suppliers are winners, not all bidders.
Procedure terms
Contracting AuthorityMinistry of Defence
Procedure methodNot published
Procurement categoryNot published
Statuscomplete
Framework / DPSNot published
CompetitionNot published
Above thresholdNot published
Legal basisNot published
Tender period startsNot published
Clarification deadlineNot published
Electronic submissionNot published
Submission languagesNot published
Published27 Jun 2025, 07:30 BST
Last source update27 Jun 2025, 07:30 BST
Recurring procurementNot published
ClassificationParts of radio and radar equipment
Delivery area
UK
OCIDocds-h6vhtk-055492
What is being bought
There is a requirement for the Maritime Command & Control, Targeting, Navigation, and Communications Team (C2TNC) within Sense, Decide and Communicate (SDC) to provide obsolescence recovery for the Platform Data Management System 4 (PDM 4) fitted to Vanguard Class Submarines. PDM In-Service Support is currently provided through contract CSA/3049. PDM4 has been in operation since the early 1990s with an expected in-service period until 2015. The original Out of Service Dates (OSD) has been extended by up to 100%, and no provision of additional stores was made when the OSDs were extended. As a result, work is now required to address the high-risk obsolescence issues, where there are low stores and items which require regular Survey and Repair. Failure to do this will adversely impact the operational capability of the CASD Vanguard Class Submarines. Currently the two main areas of concern are (1) Power Supply Units (PSUs) of which there are three variants and (2) PEC SIOs. Both items are critical to the safe operation of PDM4
What changed
From the official release history
  1. Status changed to complete
    27 Jun 2025, 07:30 BST
  2. Official notice release published
    27 Jun 2025, 07:30 BST
  3. Buyer information updated
    27 Jun 2025, 07:30 BST
Lots and requirements (1)
Published by the contracting authority
  • Lot 1 · #1
    Individual lot title not published
    Status not published
    Published valueNot published
    There is a requirement for the Maritime Command & Control, Targeting, Navigation, and Communications Team (C2TNC) within Sense, Decide and Communicate (SDC) to provide obsolescence recovery for the Platform Data Management System 4 (PDM 4) fitted to Vanguard Class Submarines. PDM In-Service Support is currently provided through contract CSA/3049. PDM4 has been in operation since the early 1990s with an expected in-service period until 2015. The original Out of Service Dates (OSD) has been extended by up to 100%, and no provision of additional stores was made when the OSDs were extended. As a result, work is now required to address the high-risk obsolescence issues, where there are low stores and items which require regular Survey and Repair. Failure to do this will adversely impact the operational capability of the CASD Vanguard Class Submarines. Currently the two main areas of concern are (1) Power Supply Units (PSUs) of which there are three variants and (2) PEC SIOs. Both items are critical to the safe operation of PDM4
    Contract periodNot published
    EligibilityNot published
    Options / renewalNot published
Timeline
  1. Procedure published
    27 Jun 2025, 07:30 BST
  2. Award active
    Not published · Not published
  3. Contract active
    Signed 31 Dec 2024, 00:00 GMT · £3,000,000
Commercial outcome and competition
Awards
Ultra Maritime
Not published · Not published · active
Contracts
Platform Data Management Systems 4 (PDM4) Obsolescence Recovery
£3,000,000 · signed 31 Dec 2024, 00:00 GMT · active
Bid statisticsNo aggregate bid statistics published
Buyer and organisations in this procedure

Ministry of Defence

Contracting authority GB-FTS-5483
View buyer profile
Documents (0)
Official links; attachments are not copied
No data
No linked documents are published
Related procedures (0)
No data
No related procedures published
Planning and rationale
Planning budgetNot published
No-engagement rationaleNot published
Procedure rationaleThe C2TNC team recommends a new direct award PDM4 Obsolescence Recovery contract to be placed with Ultra Maritime (UM) justified under Section 41 and Schedule 5 of the Procurement Act 2023 which permits direct awards when the supplier’s technical capabilities are essential to the project’s success. The justification for this takes into consideration the Intellectual Property Rights (IPR), Technical and Safety aspects of the equipment, interfaces and interoperable systems contained within the vessels. The intention is for the new contract to be negotiated with UM and notified to the market through the issue of a Transparency Notice (TN) to ensure compliance with the Act’s requirements to maintain transparency in the direct award procurement process