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RIIO-GT3 Control System Replacement FEED Framework Expression of Interest

National Gas Transmission plc · Private utility

In brief

National Gas Transmission plc has announced plans to buy architecture and engineering work. This is an early notice: there is nothing to bid on yet, but it tells you a tender may follow.

The notice does not state a value.

The contract runs for 8 years, starting 8 June 2026.

Built from the notice's own fields. Always check the official notice before you bid.

Can I win this?

Competition

Usually high: a median of 8 bids per contract for architecture and engineering contracts in this region (from 105 awards in the last 12 months).

Framework

Winning puts you on a list of suppliers the buyer can call on; it does not guarantee work.

What the notice says

This notice is published to advertise a preliminary market engagement exercise being conducted by National Gas Transmission PLC ("NGT"). NGT is seeking expressions of interest and feedback from the market to support and refine its approach to a forthcoming procurement process in respect of the RIIO-GT3 Control System Replacement FEED Framework. Who are NGT NGT play a vital role in delivering gas to millions of people across Great Britain. NGT owns, manages, and operates the National Transmission System ("NTS") in Great Britain, making gas available when and where it's needed. NGT ensure that the network is safe, reliable and available, and that it delivers value for our customers and…Read the full description
This notice is published to advertise a preliminary market engagement exercise being conducted by National Gas Transmission PLC ("NGT"). NGT is seeking expressions of interest and feedback from the market to support and refine its approach to a forthcoming procurement process in respect of the RIIO-GT3 Control System Replacement FEED Framework. Who are NGT NGT play a vital role in delivering gas to millions of people across Great Britain. NGT owns, manages, and operates the National Transmission System ("NTS") in Great Britain, making gas available when and where it's needed. NGT ensure that the network is safe, reliable and available, and that it delivers value for our customers and stakeholders, while minimising impact on the environment. What is the Control System Replacement Programme The overarching scope of each project in the programme is the complete replacement and upgrading of the compressor station's control systems to enhance cyber resilience. This involves modernising legacy infrastructure, implementing robust cybersecurity measures, and ensuring that the control systems are capable of withstanding evolving digital threats. The upgrades are intended to safeguard operational integrity, protect critical assets, and align with national and international standards for cyber-secure infrastructure. RIIO-GT3 Control System Replacement FEED Framework As NGT approaches the end of RIIO-GT2, it is preparing for its next regulatory period RIIO-GT3 which will cover April 2026 - March 2031. For RIIO-GT3 NGT is exploring an alternative delivery model for the remaining projects in the control system replacement programme, whereby a FEED Partner(s) would be appointed to carry out each projects FEED study. The FEED stage defines the technical, safety, cyber, and operational requirements for the full replacement of control systems across the site, ensuring compliance with NGT standards and NIS Directive obligations. How to express an interest Interested parties are to express an interest by completing and returning the response template. Please request the response template from [email removed]. Additional Information Any subsequent competition will be issued using Achilles UVBD (achilles.com) therefore current registration is advised.

How to bid

  1. Read the full notice on Find a Tender, including any tender documents it links to.
  2. Register your organisation on the Central Digital Platform (through Find a Tender) if you have not already. Suppliers need to be registered to take part in procurements under the Procurement Act 2023.
  3. Follow the submission instructions in the notice; it does not name an e-tendering portal.

Timeline

  1. Preliminary market engagement notice · UK2, notice 076412-2025

About the buyer

  1. GRIP 5-8 Delivery of Coventry South, Northampton CET and Tyseley Fuel Road 12

    WM Trains LimitedEast Midlands, West MidlandsConstruction, Electrical

    Closing soon3 days leftExpress interest3 lotsSuitable for SMEs

    £36.6mestimated
  2. PA2 - Archaeological Management Plan & HE1 Works Specification, Wallingford Scheduled Monuments

    Wallingford Town CouncilNorth East, North West, Yorkshire and the Humber, East Midlands, West Midlands, East of England, London, South East, South WestArchitecture and engineering, Leisure, culture and events

    Closing soon3 days leftSuitable for SMEsSmall contract

    £40kestimated
  3. Technical Implementation Partner & Business Change Partner (DASP)

    NHS Blood and TransplantNorth East, North West, East Midlands, West Midlands, East of England, South East, South WestIT services and software, Management consultancy

    Open7 days leftLow competition2 lotsSuitable for SMEs

    £9.17mestimated
  4. PQ0705 - Behavioural Systems Mapping

    Birmingham City CouncilWest MidlandsResearch and development, Marketing and communications

    Open9 days leftLow competitionSmall contract

    £45kestimated
  5. SCAPE Construction Works and Services Framework

    Scape Procure LimitedNorth East, North West, Yorkshire and the Humber, East Midlands, West Midlands, East of England, London, South East, South West, Wales, Northern IrelandEnergy and utilities, Construction

    Open10 days leftExpress interest5 lotsSuitable for SMEsFramework

    £8bnframework ceiling

From notice 076412-2025 on Find a Tender, first published 24 November 2025. We last checked for changes on 28 September 2026.