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Published 28 Jul 2025, 16:45 BST

Official UK procurement notice

In-Service Support of Ships Compass Transmission (SCTS) and Meteorological Data Gathering System (MDGS)

Official notice

Authority: Defence Equipment and Support (Central government)

ServicesDirect awardAbove threshold
Sectors: Repair & Maintenance (50) Delivery: UK
Contract value (direct award)£8,333,333≈ £1.2m / year · £10,000,000 inc. VAT
Award in standstill Not publishedno call for competition
Award (standstill) to Systems Engineering and Assessment Ltd
Contract term 7 yrsends 2 Nov 2032 · up to 2 Nov 2034 with extensions · starts 3 Nov 2025

What is being bought

Published requirement description

In Service Support contract for Ships Compass Transmission (SCTS) and Meteorological Data Gathering System (MDGS) with Systems Engineering and Assessment Limited (SEA ltd) for in-service support to and obsolescence management of Ships Compass Transmission and Meteorological Data Gathering systems fitted to Type 23 Frigates, Hunt and Sandown Classes and to Vanguard Class Submarines. These provide critical ship’s compass and meteorological information to platforms’ navigational and weapons systems.

CPV: Repair and maintenance services of warships

The lotProcurement structure

single lot · no lot value published
Lot #1AwardedRenewal 7 yrs
Contract period: 3 Nov 2025 – 2 Nov 2032 (7 yrs) · up to 2 Nov 2034 with extensions
Delivery: UK
Extensions: Extension options published
50640000 Repair and maintenance services of warships

Procedure terms & legal framework

From the official record
Procedure method
Direct award
Legal basis
UKPGA · 2023/54 Procurement Act 2023
Procurement category
Services
Notice status
Awarded without competition
Procurement threshold
Above threshold (FTS publication)
Regulatory regime
Standard
Commercial structure
Stand-alone contract (no framework)
Competition type
Direct award (no call for competition)
GPA / WTO covered
Unspecified in notice
Recurring procurement
Unspecified in notice
First published
28 Jul 2025, 16:45 BST
Last source update
28 Jul 2025, 16:49 BST
Authority reference
715365451 - In-Service Support of SCTS and MDGS
FTS notice number
2025/S 000-043622
Latest notice
Transparency notice (UK5)
Classification (CPV)
Repair and maintenance services of warships
Delivery area
UK
Official registry OCID
ocds-h6vhtk-056774 Find a Tender
Why no open competition
Single Suppliers Technical Reasons
Published justification

The Command & Control, Targeting, Navigation and Communications Team, part of the United Kingdom Ministry of Defence, intends to place an In Service Support contract for Ships Compass Transmission (SCTS) and Meteorological Data Gathering System (MDGS) with Systems Engineering and Assessment Limited (SEA ltd) for in-service support to and obsolescence management of Ships Compass Transmission and Meteorological Data Gathering systems fitted to Type 23 Frigates, Hunt and Sandown Classes and to Vanguard Class Submarines. These provide critical ship’s compass and meteorological information to platforms’ navigational and weapons systems.

The planned term of the contract is seven (7) years, plus two (1 + 1) option years. The total value, including options, is estimated to be £10 million inclusive of VAT.

It is considered that the award of this contract without prior publication of a tender notice is lawful in accordance with Section 41 of, and Paragraph 6 of Schedule 5 to, the Procurement Act 2023 for technical reasons.

SEA Ltd has supported the systems since 2017 and is the only supplier with the necessary detailed knowledge of the systems and their maintenance histories, and so the specific technical know-how required, to safely support the systems and manage obsolescence through to their out of service dates.

The Command & Control, Targeting, Navigation and Communications Team, part of the United Kingdom Ministry of Defence, intends to place an In Service Support contract for Ships Compass Transmission (SCTS) and Meteorological Data Gathering System (MDGS) with Systems Engineering and Assessment Limited (SEA ltd) for in-service support to and obsolescence management of Ships Compass Transmission and Meteorological Data Gathering systems fitted to Type 23 Frigates, Hunt and Sandown Classes and to Vanguard Class Submarines. These provide critical ship’s compass and meteorological information to platforms’ navigational and weapons systems.

The planned term of the contract is seven (7) years, plus two (1 + 1) option years. The total value, including options, is estimated to be £10 million inclusive of VAT.

It is considered that the award of this contract without prior publication of a tender notice is lawful in accordance with Section 41 of, and Paragraph 6 of Schedule 5 to, the Procurement Act 2023 for technical reasons.

SEA Ltd has supported the systems since 2017 and is the only supplier with the necessary detailed knowledge of the systems and their maintenance histories, and so the specific technical know-how required, to safely support the systems and manage obsolescence through to their out of service dates.

Annex 1: Component NSNs for SCTS & MDGS units

No. NSN Description

SCTS Component NSNs

1 993277424 REPEATER TAPE HEADING

2 994606458 REPEATER COMPASS.

3 994606485 BRACKET REPEATER

4 994606522 BRACKET DUAL POSITION RE

5 994606523 CIRCLE AZIMUTH

6 994606573 CIRCLE AZIMUTH

7 995207686 INDICATOR COURSE

8 995220270 AZIMUTH CIRCLE ILLUMINAT

9 995226964 INDICATOR COURSE/ Calculator Course

10 995235028 SYNCHRONOUS BEARING REPE

11 995235029 CONTROL AZIMUTH GYRO COM

12 995258993 CONTROL DATA DISTRIBUTOR

13 995259213 INDICATOR COURSE

14 995270727 SYNCH BEARING REPEATER

15 995293919 POWER SELECTOR COMPASS T

16 995298158 TOOL KIT DATA DISTRIBUTO

17 996608815 REPEATER TAPE DIGITAL

18 999231278 INDICATOR COURSE

19 999235574 GEARBOX MECHANICAL MR

20 999404695 REPEATER TAPE DIGITAL

21 995236994 METER DISTANCE MARINE

22 995270729 CONTROL AZIMUTH GYRO COM (VCS 657)

23 995235030 CONTROL AZIMUTH GYRO COM (VCS 274)

24 995330265 INDICATOR COURSE

25 995270726 CONTROL DATA DISTRIBUTOR (LOW MAG VARIANT)

MDGS Component NSNs

1 997631611 COMPLETE MDGS RACK

2 992126914 MDGS RECEIVER RACK

3 998670675 MDGS COMPUTER RACK

4 999850710 MDGS TERMINAL RACK

5 993008077 MDGS APT ANTENNA ASSEMBLY

6 998338701 NMEA BUFFER

How it was run

Official notice
Submission deadline
—

Timeline

28 Jul 2025 → 3 Nov 2025 · 3 dates
  1. Planning notice published
    28 Jul 2025, 16:45 BST
  2. Next notice expected
    31 Jul 2025, 23:59 BST
  3. Contract starts360 days ago
    3 Nov 2025

Notice history

4 events · 2 releases on Find a Tender · since 28 Jul 2025
  1. Pipeline notice published
    28 Jul 2025, 16:45 BST
    UK1
  2. Transparency notice published
    28 Jul 2025, 16:49 BST
    UK5
  3. Status changed to complete
    28 Jul 2025, 16:49 BST
  4. Contract signature expected
    31 Oct 2025, 23:59 GMT
    scheduled

Commercial outcome & contract awards

Published awards, contracts and bid statistics, not a forecast
Awards 1some still in standstill
Awarded value £8,333,3331 award exc. VAT
Awarded toValueDateStatus
Systems Engineering and Assessment Ltd3 Nov 2025 – 2 Nov 2032 · up to 2 Nov 2034Extensions: The planned term of the contract is seven (7) years, plus two times one (+1 + 1) option year · Options: MDGS currently out of scope and that could be an additional option, it's subject to customer requirement.£8,333,333—Standstill

Contracting authority & participating public bodies

Defence Equipment and Support

Contracting authorityPublic authority - central government GB-PPON: PVRL-5831-GLMM MOD Abbey Wood, Bristol, South West, BS34 8JHContact name, email

Bidders & participating suppliers

1 commercial party on the notice

Official documents & specifications (2)

Official links; attachments are not copied

Notices published for this procedure

  • Transparency notice awardTransparency noticeUK5Transparency notice on Find a Tender
  • Pipeline notice planningPipeline noticeUK1Pipeline notice on Find a Tender