Ends Jan 2027
eITT for Mini-Competition for the provision of Swath Bathymetry Services to the Southeast Regional Coastal Monitoring Programme
New Forest District Council · South East · 1-year contract
Held by Njord Survey AB
Bathymetric survey tenders and contracts
UK public sector, covering 600+ buyer sites
246 bathymetric survey tenders and contracts, 41 this year.
Updated 4 November 2026 · compiled by BidSkim Limited · How we count
- Awarded a month£83k
- Contracts a month1
- Won by SMEs71%
- Renewing in 6 months1
- Frameworks and DPSs2
- Live now2See them →
Bathymetric survey contracts
Tap a region to see its contracts. Pick as many as you like.
23 contracts across the UK, of any size
Live now
2 bathymetric survey opportunities are open now
- OpenCloses in 9 daysCM141 - Bathymetry & Topographic Surveys - Smalls, Eddystone and Les Hanois LighthousesTrinity House · LondonEst.£90k
- Pre-market19 Sep 2026
- Awarded26 Oct 2026Survey of potential Western Channel MPA control sitesJoint Nature Conservation CommitteeWon by Ocean Ecology
- Awarded14 Oct 2026Geophysical and Shallow Sub-Surface Survey Services at the Port of Port TalbotAssociated British Ports · WalesWon by GEOXYZ UK Ltd£832k
- Awarded9 Oct 2026CM4 - Bathymetry & Topographic Surveys Bishop Rock and Longships LighthousesTrinity House · South WestWon by Castle Surveys Ltd£47k
- Awarded8 Oct 2026marine survey campaignOffshore Renewable Energy CatapultWon by Ocean Ecology£80k
- Awarded15 Sep 2026Underwater Pipeline Crossing Surveys & Remedial WorksNorthern Gas Networks · Yorkshire and the HumberWon by Northern Divers (Engineering) Limited£1.1m
- Awarded4 Sep 2026The provision of Ocean Bottom Seismograph (OBS)University of PlymouthWon by Ocean-Bottom Instrumentation Consortium£408k
- Awarded29 Jun 2026STA1529 Bathymetric and Topographic Survey of Wolf Rock LighthouseTrinity House · South WestWon by Castle Surveys Ltd£30k
- Awarded17 Mar 2026ITT - CSM Demonstration Survey UID 218Historic England · South WestWon by Wessex Archaeology£28k
- Awarded5 Feb 2026Survey of Wreck Orp KujawiakDefence Equipment and Support · South WestWon by Cwaves Limited£40k
- Awarded14 Jan 2026CEFAS25-97 Request for Quotation for the provision of Hydrographic ExpertiseCefas · East of EnglandWon by Intertek and 2 more£100k
- Awarded4 Dec 2025eITT for Mini-Competition for the provision of Swath Bathymetry Services to the Southeast Regional Coastal Monitoring ProgrammeNew Forest District Council · South EastWon by Njord Survey AB£600k
- Awarded9 Oct 2025UXO Survey - Luce BayDefence Equipment and Support · ScotlandWon by Clydeside Surveys Ltd£26k
- Awarded3 Oct 2025CEFAS25-80 Contract for bathymetric surveys at Sizewell C for the BEEMS programmeCefas · East of EnglandWon by Ocean Ecology and 3 more£500k
- Awarded26 Sep 2025Subsea Survey ServicesInterconnector Services · Northern IrelandWon by N-Sea£3m
- Awarded17 Sep 2025CEFAS25-81 RFQ for a geophysical and bathymetric survey at Sizewell CCefas · East of EnglandWon by Njord Survey AB£50k
- Awarded18 Aug 2025Hydrographic SurveysTrinity House · LondonWon by G J Binding and Sons£48k
- Awarded4 Aug 2025MMF 2 - Mids Hub - Trent SurveysEnvironment Agency · East MidlandsWon by JBA Consulting£366k
- Awarded18 Mar 2025AUIP Sensor PackageOffshore Renewable Energy Catapult · ScotlandWon by Frontier Robotics£42k
- Awarded5 Mar 2025CEFAS24-145 Contract for Bathymetry Surveys at Sizewell CCefas · East of EnglandWon by Spectrum Geosurvey Limited£48k
- Awarded11 Feb 2025Provision of a Seabed SurveyOrkney Islands Council · ScotlandWon by Tritonia Scientific Ltd£70k
- Awarded6 Nov 2024Bathymetric Surveys Term Contract 2025-2027Argyll and Bute Council · ScotlandWon by Aspect Land & Hydrographic Surveys Ltd£121k
Where to bid
Where bathymetric survey tenders are run
In-Tend2 67%
Atamis1 33%
Tenders published in the last year that name the bid portal they run on.
Ocean Ecology won the most bathymetric survey contracts
N-Sea won the most by value. Each dot is one contract, coloured by who bought it.
EducationTransport and utilitiesCentral governmentCouncils
| Rank | Contractor | Contracts won, by buyer | Contracts | Value won | Buyers | Share |
|---|---|---|---|---|---|---|
| 1 | Ocean Ecology East of England · See every contract | 3 | £80k | 3 | ||
| 2joint | Njord Survey AB East of England · SME · See every contract | 2 | £650k | 2 | ||
| 2joint | Cwaves Limited South West · See every contract | 2 | £436k | 2 | ||
| 2joint | Castle Surveys Ltd South West · SME · See every contract | 2 | £77k | 1 | ||
| 5joint | N-Sea Northern Ireland · See every contract | 1 | £3m | 1 | ||
| 5joint | Northern Divers (Engineering) Limited Yorkshire and the Humber · SME · See every contract | 1 | £1.1m | 1 | ||
| 5joint | GEOXYZ UK Ltd Wales · SME · See every contract | 1 | £832k | 1 | ||
| 5joint | Ocean-Bottom Instrumentation Consortium SME · See every contract | 1 | £408k | 1 | ||
| 5joint | Waves Group | 1 | £396k | 1 | ||
| 5joint | JBA Consulting East Midlands · See every contract | 1 | £366k | 1 |
14 more bathymetric survey contractors ranked. See the full ranking →
Win bathymetric survey contracts? Share your ranking.
Who buys
16 buyers awarded bathymetric survey contracts
Contracts with a published value in the last 2 years, from the type of buyer to the size of the contract.
4 buyers bought bathymetric survey more than once in the last 2 years
Each dot is a buyer, by how many bathymetric survey contracts it awarded in the last 2 years.
See who they are and when they usually buy →
Few and big, or many and small
Each dot is a buyer: how many bathymetric survey contracts it awarded against what they were worth. The busiest and biggest are named.
EducationTransport and utilitiesCentral governmentCouncils
Top buyers by contracts awarded
| Rank | Buyer | Contracts | Value |
|---|---|---|---|
| 1 | Cefas | 4 | £698k |
| 2 | Trinity House | 3 | £125k |
| 3 | Offshore Renewable Energy Catapult | 2 | £122k |
| 4 | Defence Equipment and Support | 2 | £66k |
| 5 | Interconnector Services | 1 | £3m |
| 6 | Northern Gas Networks | 1 | £1.1m |
| 7 | Associated British Ports | 1 | £832k |
| 8 | Ministry of Defence | 1 | £792k |
| 9 | New Forest District Council | 1 | £600k |
| 10 | University of Plymouth | 1 | £408k |
93 bathymetric survey contracts awarded since 2021
- 82021
- 212022
- 272023
- 152024
- 122025
- 102026 so far
Prices
Half of bathymetric survey contracts are worth less than £75k
EducationTransport and utilitiesCentral governmentCouncils
The 10 biggest bathymetric survey contracts
- Interconnector ServicesN-Sea · 26 Sep 2025
- Northern Gas NetworksNorthern Divers (Engineering) Limited · 15 Sep 2026
- Associated British PortsGEOXYZ UK Ltd · 14 Oct 2026
- Ministry of DefenceWaves Group, Cwaves Limited · 8 May 2025
- New Forest District CouncilNjord Survey AB · 4 Dec 2025
- CefasOcean Ecology, Landscope Engineering Limited, SEP Hydrographic Limited, Njord Survey Ltd · 3 Oct 2025
- University of PlymouthOcean-Bottom Instrumentation Consortium · 4 Sep 2026
- Environment AgencyJBA Consulting · 4 Aug 2025
- Argyll and Bute CouncilAspect Land & Hydrographic Surveys Ltd · 6 Nov 2024
- CefasIntertek, HR Wallingford, Hydenlyne Limited · 14 Jan 2026
Renewing contracts
1 bathymetric survey contract comes up for renewal in the next 12 months
1 in the next 6 months. Most bathymetric survey work is one-off: 13% of the contracts ending are recurring terms that get re-let. The 1 ending soonest is shown in full.
Where and when
September and October are the busiest months
Contracts by region and by month awarded. Click a region to filter the page.
FewerMore contracts
The regions as a table
| Region | Open now | Contracts | Value | Typical contract | Won the most | Bought the most | Renewing in 12 months |
|---|---|---|---|---|---|---|---|
| East of England | 0 | 4 | £698k | £75k | – | Cefas (4) | 0 |
| South West | 0 | 4 | £145k | £35k | Castle Surveys Ltd (2) | Trinity House (2) | 0 |
| Scotland | 0 | 4 | £259k | £56k | – | – | 0 |
| Yorkshire and the Humber | 0 | 1 | £1.1m | – | – | – | 0 |
| East Midlands | 0 | 1 | £366k | – | – | – | 0 |
| London | 1 | 1 | £48k | – | – | – | 0 |
| South East | 0 | 1 | £600k | – | – | – | 1 |
| Wales | 0 | 1 | £832k | – | – | – | 0 |
| Northern Ireland | 0 | 1 | £3m | – | – | – | 0 |
| North East | 0 | 0 | Not published | – | – | – | 0 |
| North West | 0 | 0 | Not published | – | – | – | 0 |
| West Midlands | 0 | 0 | Not published | – | – | – | 0 |
Often bought with bathymetric survey
Related services
Key findings
- £83k a month
of bathymetric survey contracts awarded.
Typical contract £90k x 0.9 contracts a month, last 12 months. - 1
bathymetric survey contract comes up for renewal in the next 6 months.
Recurring contracts with a named supplier and a published end date before 4 May 2027. - 2
frameworks and DPSs are running for bathymetric survey work.
0 open to join now. - 71%
of bathymetric survey contracts are won by SMEs.
As recorded by the buyer, on 21 award notices.
How many bathymetric survey tenders and contracts are there?
| Last 12 months | Since November 2021 | |
|---|---|---|
| Notices published | 41 | 246 |
| Contracts awarded | 11 | 86 |
13 bathymetric survey contracts and frameworks end in the next 12 months, 4 of them recurring services. In the last two years, 16 buyers awarded bathymetric survey contracts to 24 suppliers.
Source: Find a Tender, Contracts Finder, Public Contracts Scotland, Sell2Wales and eTendersNI, to 4 November 2026. By Seamus White. How we count
Questions
How many bathymetric survey contracts does the UK public sector award?
23 in the 2 years to 4 November 2026, from 16 public buyers.
How long are bathymetric survey tenders open for?
The median bathymetric survey tender is open for 26 days from publication to deadline.
How much is a typical public sector bathymetric survey contract worth?
The median is £75k, and 64% are worth less than £250k.
Who wins the most public sector bathymetric survey contracts?
Ocean Ecology won the most (3). N-Sea won the most by value (£3m).
How many bathymetric survey contracts come up for renewal in the next 12 months?
1 contract ends and is likely to be re-let, the first on 11 January 2027. Another 7 ending are one-off work.
What is included
Surveys of seabed, water depth and sea conditions in coastal, offshore and inland waters: hydrographic, bathymetric, geophysical and metocean surveys, including survey campaign management.
- Hydrographic surveys
- Bathymetric and seabed surveys
- Offshore metocean, geophysical and site survey campaigns, including survey management and technical advice for offshore wind
What is not included
- Land topographical surveys (see Topographical, measured, utility and aerial surveys)
- Oceanographic and tidal modelling for marine energy (see Local area energy planning)