Official UK procurement notice
CEFAS25-80 Contract for Bathymetric surveys Sizewell C for the BEEMS programme
Authority: Centre for Environment, Fisheries and Aquaculture Science (Central government)
What is being bought
Published requirement descriptionThe BEEMS (British Energy Estuarine and Marine Studies) programme is funded by Sizewell C Limited. Through this programme, Cefas provide authoritative scientific information on the marine and transitional waters in the vicinity of potential new build nuclear power stations and require the Supplier to deliver the elements described below.
The purpose of this project is to provide bathymetric data at Sizewell to assess the geomorphological changes of the region, hence contributing to the ongoing monitoring of the Sizewell Coastline. These surveys are a regulatory requirement under the Development Consent Order’s (DCO) conditions and the Coastal Processes Monitoring and Mitigation Plan (CPMMP).
Cefas anticipate 4 - 6 Multibeam Echosounder (MBES) bathymetric surveys to IHO Special Order (at a minimum) within the Greater Sizewell Bay (GSB) for a 12-month period between October 2025 and September 2026 (with the option to extend for up to 4 additional years), roughly following a quarterly schedule with the potential for additional surveys subject to requirements.
Exact survey dates will be agreed between Cefas and the supplier during the pre-survey kick off meetings, however the timings for surveys are dependent on construction schedules so may be subject to change at short notice. We currently expect the first survey to be required in October/November 2025, with following surveys in approximately January 2026, April 2026 and July 2026.
A Core Contract has been awarded to the top ranked Supplier with the intention that all required work will be completed by that Supplier.
Due to the nature of the work and the risks associated, 3 Call-Off Contracts have also been awarded to the next 3 ranked Suppliers. These will only be used if the top ranked Supplier is unable to complete the services.
We are therefore unable to determine the value of spend through each contract.
1st ranked Supplier to be awarded a 'Core Contract' -LandScope Engineering
2nd ranked Supplier to be awarded a 'Call-off Contract' -SEP Hydrographic Limited
3rd ranked Supplier to be awarded a 'Call-off Contract' -Njord Survey AB
4th ranked Supplier to be awarded a 'Call-off Contract' -Ocean Ecology Limited
- No preliminary market engagement: This is a recurring requirement with a well known market.
CPV: Research vessel services
The lotProcurement structure
single lot · value publishedLot #1AwardedRenewalPublished value£500,000
- Economic & financial standing
As per Bidder Pack
- Technical & professional ability
As per Bidder Pack
What it takes to wini
How this buyer will score bids.
The evaluation criteria and weights exactly as published on the notice, grouped by family (price, quality, social value and so on).
Evaluation split and conditions of participation as published; the tender pack may add morei
How this buyer will score bids.
The evaluation criteria and weights exactly as published on the notice, grouped by family (price, quality, social value and so on).
Published sub-criteria (3)
- Technical: 70%
- Price: 20%
- Social Value: 10%
Published award criteria (3)
- Technical
- Social Value
- Price
- Economic & financial standing
As per Bidder Pack
- Technical & professional ability
As per Bidder Pack
- Price carries 20 of 100 points: a 10% discount moves about 2 points. The method statement decides this lot, not the discount.
Price arithmetic assumes straight proportional scoring; the tender pack may use another formula.
Procedure terms & legal framework
From the official record- Procedure method
- Open procedure
- Legal basis
- UKPGA · 2023/54 Procurement Act 2023
- Procurement category
- Services
- Notice status
- Awarded
- Procurement threshold
- Above threshold (FTS publication)
- Regulatory regime
- Standard
- Commercial structure
- Stand-alone contract (no framework)
- Competition type
- Competitive procedure
- GPA / WTO covered
- Yes (GPA)
- Recurring procurement
- Unspecified in notice
- First published
- 25 Jul 2025, 14:29 BST
- Last source update
- 17 Nov 2025, 15:02 GMT
- Award evaluation window
- Submission end – 15 Sept 2025
- Authority reference
CEFAS25-80- FTS notice number
2025/S 000-043170- Latest notice
- Contract details notice (UK7)
- Classification (CPV)
- Delivery area
- Official registry OCID
ocds-h6vhtk-056661Find a Tender- Contract terms summary
As per Bidder Pack
- Risks
Prolonged Adverse Weather Due to tidal limitations on the surveys, prolonged adverse weather could impact the ability to obtain the dataset for a specific month. This could result in additional costs and/or contract extension in order to meet the requirements. Unable to address the risk upfront as weather is beyond control of Buyer or Supplier. Proportionate mitigation for some weather risk is provided for in the Contract. Risk assigned to both parties. Prolonged Adverse Weather. Due to tidal limitations on the surveys, prolonged adverse weather could impact the ability to obtain the dataset for a specific month. This could result in additional costs and/or contract extension in order to meet the requirements. Unable to address the risk upfront as weather is beyond control of Buyer or Supplier. Proportionate mitigation for some weather risk is provided for in the Contract. Risk assigned to both parties. Change in frequency of survey requirements. Due to changing requirements from Sizewell C, frequency or timings of surveys could change. This could result in additional costs in order to meet the requirements. Unable to address the risk upfront as neither Buyer or Supplier has control over the Sizewell C project planning or regulatory requirements. Proportionate mitigations provided for in the Contract. Risk assigned to Buyer.
How it was run
Official notice- Submission deadline
- 12 Sept 2025, 12:00 BST
- Clarification deadline
- 3 Sept 2025, 17:00 BST
- Submission channel
- Official e-sourcing portal
- Electronic submission
- Allowed
- Accepted languages
- en
atamis-9529.my.site.com/s/Welcome ↗ All bids to be submitted via the above eProcurement system.
Timeline
25 Jul 2025 → 17 Nov 2025 · 8 dates- Tender notice published25 Jul 2025, 14:29 BST
- Clarification questions by3 Sept 2025, 17:00 BST
- Submission deadline398 days ago12 Sept 2025, 12:00 BST
- Award decision expected by394 days ago15 Sept 2025, 23:59 BST
- Assessment summaries sent374 days ago6 Oct 2025, 00:00 BST
- Contract starts367 days ago13 Oct 2025, 00:00 BST
- Standstill ends364 days ago15 Oct 2025, 23:59 BST
- Latest notice published332 days ago17 Nov 2025, 15:02 GMT
Notice history
7 events · 4 releases on Find a Tender · since 25 Jul 2025- Tender notice published25 Jul 2025, 14:29 BSTUK4
- Tender notice published18 Aug 2025, 16:25 BSTUK4
- Deadline moved to 12 Sept 2025, 12:00 BST18 Aug 2025, 16:25 BST+14 days · was 29 Aug 2025, 12:00 BST
- Contract award notice published6 Oct 2025, 11:59 BSTUK6
- Status changed to complete6 Oct 2025, 11:59 BST
- Contract signature expected16 Oct 2025, 23:59 BSTscheduled
- Contract details notice published17 Nov 2025, 15:02 GMTUK7
Published amendments (1)
Cefas is amending the Contracting arrangement. A Core Contract will be awarded to the top ranked Supplier and up to 3 Call-Off Contracts will be awarded to the next 3 ranked Suppliers. Full details are in the Bidder Pack, available from the eProcurement system once Suppliers have registered their interest. To allow additional time for Suppliers following the amendment, the submission deadline has …
Routine re-releases (4)
- 2025-07: 1 release · 25 Jul 2025
Commercial outcome & contract awards
Published awards, contracts and bid statistics, not a forecast| Awarded to | Value | Date | Status |
|---|---|---|---|
| LandScope Engineering LtdSMECEFAS25-80-1 Core Contract for bathymetric surveys at Sizewell C20 Oct 2025 – 19 Oct 2026 · up to 19 Oct 2029Extensions: Annually, up to 3 x 12 months | £500,000 | 3 Oct 2025standstill to 15 Oct 2025 | Standstill |
| SEP Hydrographic LimitedSMECEFAS25-80-2 Call-off Contract for bathymetric surveys at Sizewell C20 Oct 2025 – 19 Oct 2026 · up to 19 Oct 2029Extensions: Annually, up to 3 x 12 months | — | 3 Oct 2025standstill to 15 Oct 2025 | Standstill |
| NJORD SURVEY LTDSMECEFAS25-80-3 Call-off Contract for bathymetric surveys at Sizewell C20 Oct 2025 – 19 Oct 2026 · up to 19 Oct 2029Extensions: Annually, up to 3 x 12 months | — | 3 Oct 2025standstill to 15 Oct 2025 | Standstill |
| Ocean EcologyCEFAS25-80-4 Call-off Contract for bathymetric surveys at Sizewell C20 Oct 2025 – 19 Oct 2026 · up to 19 Oct 2029Extensions: Annually, up to 3 x 12 months | — | 3 Oct 2025standstill to 15 Oct 2025 | Standstill |
| LandScope Engineering LtdSME | — | — | Awarded |
| SEP Hydrographic LimitedSME | — | — | Awarded |
| NJORD SURVEY LTDSME | — | — | Awarded |
| Ocean Ecology | — | — | Awarded |
Contracts
CEFAS25-80-3 Contract for Bathymetric surveys Sizewell C for the BEEMS programme · NJORD SURVEY LTDSME
- Signed
- 11 Nov 2025
- Value
- —
- Period
- 12 Nov 2025 – 11 Nov 2026 · up to 11 Nov 2030 with extensions
- Status
- active
- Extensions
- Option to extend for 4 x 12 month periods on an annual basis.
CEFAS25-80-1 Contract for Bathymetric surveys Sizewell C for the BEEMS programme · LandScope Engineering LtdSME
- Signed
- 5 Nov 2025
- Value
- £500,000
- Period
- 6 Nov 2025 – 5 Nov 2026 · up to 5 Nov 2030 with extensions
- Status
- active
- Extensions
- Option to extend for 4 x 12 month periods on an annual basis.
CEFAS25-80-2 Contract for Bathymetric surveys Sizewell C for the BEEMS programme · SEP Hydrographic LimitedSME
- Signed
- 3 Nov 2025
- Value
- —
- Period
- 4 Nov 2025 – 3 Nov 2026 · up to 2 Nov 2030 with extensions
- Status
- active
- Extensions
- Option to extend for 4 x 12 month periods on an annual basis.
CEFAS25-80-4 Contract for Bathymetric surveys Sizewell C for the BEEMS programme · Ocean Ecology
- Signed
- 24 Oct 2025
- Value
- —
- Period
- 25 Oct 2025 – 23 Oct 2026 · up to 23 Oct 2030 with extensions
- Status
- active
- Extensions
- Option to extend for 4 x 12 month periods on an annual basis.
Bid statistics published by the authority
| Bids | SME | VCSE | Valid bid range |
|---|---|---|---|
| 10final-stage tenders | 8 | 0 | — |
Contracting authority & participating public bodies
Bidders & participating suppliers
4 commercial parties on the notice- Landscope Engineering LimitedAwarded supplier
- NJORD SURVEY LTDAwarded supplier
- Ocean Ecology LimitedAwarded supplier
- SEP Hydrographic LimitedAwarded supplier
Official documents & specifications (10)
Official links; attachments are not copiedNotices published for this procedure
- Contract details notice Contract details notice on Find a Tender
- Contract details notice Contract details notice on Find a Tender
- Contract details notice Contract details notice on Find a Tender
- Contract details notice Contract details notice on Find a Tender
- Contract award notice Contract award notice on Find a Tender
- Contract award notice Contract award notice on Find a Tender
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