Estimated Value
Up to £1,527,000
Deadline
Not specified
Published
19 March 2026
Type
services
Overview
The Counter Seaborne Intruder Device (CSID) is a water-side physical security perimeter providing protection for infrastructure and vessels. A tender will be run to compete for the provision of 2 years of maintenance on the CSID.
The Tender will be run via the RM6264 Dynamic Purchasing System through the Crown Commercial Service eSourcing tool. Suppliers are able to join the Dynamic Purchasing System at any time via the Supplier Registration page and are advised to do so at the earliest opportunity.
The link to the Dynamic Purchasing System is available here: https://www.crowncommercial.gov.uk/agreements/RM6264 The supplier is required to provide a Baseline Asset Survey / Report and Maintenance Schedule.
Contact & helpdesk
The Contractor must provide a point of contact available 24 hours per day, 7 days per week, 365 days per year to function as the First Level response contact to provide telephone support.
Additional details
General Maintenance duties will include washing of the CSID, inspections, measurements and photographic records. Removal of mooring buoys and/or Dunlop fenders.
Mooring Equipment Condition Reports. Replacement of CSID Gate Strops.
Dunlop Fender Pressure Checks. Maintenance of Gate Mooring Buoys, Hook Swivels and Hinge Swivels.
Identification of Mooring defects. Facilitation of stakeholder inspections via suitable contractor provided vessels.
Supply and installation of 5x Barrier Floats (25m length 2.35m diameter). Supplier will sub-contract an independent inspection report of the CSID in year two of the contract, facilitating the raising of all mooring buoys to be inspected.
Contractor will provide copies of testing and commissioning certificates for new/repaired CSID components. Supplier is required to provide necessary personnel, vehicles, and equipment to enable transportation.
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Likely incumbents
Suppliers who won similar work from this buyer in the last 5 years.
- 1
UK Docks Marine Services North Ltd
3 contracts wonlatest 21 Apr 2026£7bn
total awarded
- 2
SeaTec UK Ltd
2 contracts wonlatest 6 Aug 2026ends 13 Aug 2031£71m
total awarded
- 3
Devonport Royal Dockyard Ltd
2 contracts wonlatest 21 Apr 2026£4bn
total awarded
- 4
Griffon Marine Ltd
2 contracts wonlatest 21 Apr 2026£4bn
total awarded
- 5
Sea Tec UK Ltd
1 contract wonlatest 17 Sept 2026£6m
total awarded
UK Docks Marine Services North Ltd is the most likely incumbent based on recency and category match. To win, bidders typically need a clearly differentiated proposition or a price advantage.
Before you bid, buyers check
two years of filed accountsyour financial standingturnover vs contract valueyour Companies House recordcash flow for 30-day termscredit scores and ratios
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Buyer Profile
Ministry of DefenceKey Dates
Published
19 March 2026
Submission deadline
Not specified
Notice type
planning
Source
find a tender
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