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The 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
| Supplier | Identifier | Award Value | Lots Won | Cross-References |
|---|---|---|---|---|
| LandScope Engineering | 05178492 | ~£500,000 estimated from lot values | 1 lot Lot 1 | - |
| Njord Survey Ltd | 15248293 | ~£0 estimated from lot values | 1 lot Lot 1 | - |
| Ocean Ecology Limited | 08961638 | ~£500,000 estimated from lot values | 1 lot Lot 1 | - |
| SEP Hydrographic Limited | 12578676 | ~£500,000 estimated from lot values | 1 lot Lot 1 | - |
This procurement was divided into 1 lots, each awarded separately. 10 bids were received in total.
| Lot | Value | Bids Received | Awarded To | Status |
|---|---|---|---|---|
| Lot 1 Oct 2025 – Oct 2027 | £500,000 | 10 | LandScope Engineering SEP Hydrographic Limited Njord Survey Ltd Ocean Ecology Limited Landscope Engineering Limited NJORD SURVEY LTD | active |
Weightings from the notice.
Government spending data: These suppliers have received £14,217,706 in 180 payments (over £25k) from Department for Transport, DEFRA, Scottish Government (2020-05-21 to 2026-05-28).
Changes the buyer published to this notice after it first appeared.
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 been extended to 12 September 2025 at 12:00 midday UK time.