Marine construction contracts
UK public sector · 56 contracts awarded in the 12 months to 6 October 2026
Covering 600+ buyer portals · 5 years of records · Updated 6 October 2026 · How we count
- Contracts awarded
- 56
- Last 12 months
- Median contract
- £136k
- Recorded value
- Recorded value
- £306m
- 50 of 53 main-service contracts have a published value
- Buyers
- 42
- Suppliers
- 57
5 marine construction tenders open now
Get them by email16 marine construction contracts ending in the next 12 months
See which ones
BidSkim assigns contracts to services from the notice text. How services are assigned
What stands out
- The five suppliers that won the most marine construction contracts took 23% of them (13 of 56).
- The median contract, £136k, is close to the median across construction & trades contracts (£139k).
- South East had the most contracts: 17, or 30% of the total.
Who buys marine construction
By contracts awarded, the 12 months to 6 October 2026.
- 1Portsmouth City Council6 contracts£226k
- 2Environment Agency3 contracts£339k
- 3LONDON GATEWAY PORT LIMITED2 contracts£109m
- 4Caledonian Maritime Assets Ltd2 contracts£25.2m
- 5Department for Environment, Food and Rural Affairs2 contracts£1.2m
- 6Bristol City Council2 contracts£528k
- 7Carmarthenshire County Council2 contracts£498k
- 8Northern Lighthouse Board2 contracts£365k
- 9Port of Dover2 contracts—
- 10Harwich Haven Authority1 contract£100m
Top marine construction contractors by contracts won
The 12 months to 6 October 2026.
- 1Baker Trayte Marine Ltd4 contracts£96k
- 2George Leslie Ltd3 contracts£25.4m
- 3McLaughlin & Harvey2 contracts£23.9m
- 4Boskalis Westminster Ltd2 contracts£9.2m
- 5Teignmouth Maritime Services Limited2 contracts£3.3m
- 6OVENDEN ALLWORKS LIMITED2 contracts£1.1m
- 7Southbay Civil Engineering Ltd2 contracts£815k
- 8UK Power Networks2 contracts—
- 9Mitie2 contracts—
- 10FM Conway Limited2 contracts—
Latest and largest awards
Each links to the official notice.
Latest
Redcar and Cleveland Borough Council to BCE Northern Limited · Awarded 8 September 2026
Ramsgate Royal Harbour, Kent Mechanical Dredging to Exmouth Marine Limited · Awarded 4 September 2026
Department for Communities to CUAN MARINE SERVICES LIMITED · Awarded 25 August 2026
Department for Environment, Food and Rural Affairs to BAM Nuttall · Awarded 20 August 2026
Wyre Council to Greenspace Designs Limited · Awarded 14 August 2026
Portsmouth City Council to Baker Trayte Marine Ltd · Awarded 12 August 2026
Value not published
Associated British Ports to Boskalis Westminster Ltd · Awarded 11 August 2026
Contract for Execution of Morfa Quay and New Cut Road Pontoons (official notice, opens in a new tab)
£412k
City and County of Swansea to Inland and Coastal Marina Systems · Awarded 3 August 2026
Carmarthenshire County Council to Kaymac Marine & Civil Engineering Ltd · Awarded 15 July 2026
Southend-on-Sea City Council to EDMUNDS DESIGN & CONSTRUCTION LTD · Awarded 9 July 2026
Largest
Harwich Haven Authority to SUFFOLK DREDGING LLP · Awarded 13 March 2026
LONDON GATEWAY PORT LIMITED to Jan De Nul · Awarded 18 December 2025
London Gateway Berth 5 Container Storage Yard Construction (official notice, opens in a new tab)
£52.3m
LONDON GATEWAY PORT LIMITED to GOBION CONSTRUCTION LTD · Awarded 18 March 2026
The Highland Council to Charles Brand Group Ltd · Awarded 13 December 2025
Contracts awarded by quarter
Where the contracts were awarded
England 40 · Scotland 9 · Wales 6 · Northern Ireland 1
What is included
Construction and maintenance of harbour and waterside structures such as quays, reclamation, pontoons, moorings and marine access structures.
- Harbour reclamation, sheet piling and hardstanding
- Pontoon replacement
- Mooring inspection and maintenance
- Mooring re-piling
- Repairs to ladders, handrails and fenders on marine structures
What is not included
- Sea defences (con.civils.coastal-protection)
- Marine ground investigation (con.civils.ground-investigation)