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BidSonar is an independent index of public-sector opportunities. We aggregate data from official sources and are not affiliated with any procurement body. Data is licensed under the Open Government Licence v3.0 and the EU TED reuse notice.

    ContractsBathymetry and Topographic Surveys for Bishop Rock and Longships Lighthouses
    Awarded contract

    Bathymetry and Topographic Surveys for Bishop Rock and Longships Lighthouses

    Awarded
    £47k
    Published 9 Oct 2026

    Opportunity to provide bathymetry and topographic survey services for two lighthouse locations to support infrastructure assessment and maintenance planning.

    🇬🇧United Kingdom· LondonPublished 9 Oct 2026· TodayviaFind a Tender
    Awarded
    £47k
    Published 9 Oct 2026

    Decision brief

    4 fields
    • Contract value
      £47,000
      Pounds sterling
    • Closing date
      Not published
      No closing date published
    • Sector
      Engineering
      Browse related listings
    • Location
      🇬🇧United Kingdom
      London

    Suppliers

    1 supplier
    • CS
      CASTLE SURVEYS LIMITED
    Lead contractor

    Lifecycle

    Awarded

    Contract awarded. Originally published today.

    9 October 2026
    Awarded — no open tender advertised

    Brief

    This procurement opportunity involves conducting comprehensive bathymetry and topographic surveys for two lighthouse facilities: Bishop Rock Lighthouse and Longships Lighthouse. The surveys will assess underwater depths and underwater/above-water terrain mapping to support infrastructure maintenance, safety assessments, and operational planning. Suppliers should have expertise in marine surveying, bathymetric mapping technologies, and topographic data collection. Deliverables are expected to include detailed survey data, accurate maps, and technical reports suitable for lighthouse operations and maintenance teams.

    Track record

    2 awards · 1 winner
    Thin record

    Only 2 prior awards here — too little to read.

    In engineering, TRINITY HOUSE has awarded 2 contracts to 1 supplier.

    Who wins here
    1. CASTLE SURVEYS LIMITED2× · 100%

    Across engineering, the most active winners are AECOM LTD, WSP UK LIMITED, OVE ARUP PARTNERS LIMITED — the field to beat, or your route in as a partner.

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    Take action
    View on sourceFind a Tender

    Award notice and full record on the publisher's site

    Publisher
    UK Cabinet Office
    Licence
    OGL v3.0
    Source
    find-tender.service.gov.uk
    Record ID
    ocds-h6vhtk-078527

    Your fit

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    Buyer
    TRINITY HOUSE
    Sector
    Engineering