• 15 May 2020
    How has Long O Donnell managed to continue working during the COVID-19 Pandemic?
  • 07 May 2020
    Long O Donnell Win Additional Design Projects for Wales and West Utilities
  • 06 May 2020
    Long O Donnell Win Feasibility Study for Part Replacement of Pipeline for Wales and West Utilities
  • 05 May 2020
    Long O Donnell to Develop a Generic Design Solution for Mutual Energy Limited
  • 04 May 2020
    Long O Donnell awarded design work for Decommissioning of Power Station
  • 03 April 2020
    Long O Donnell Sign 5 Year Contract Extension
  • 31 March 2020
    Structural Review of a Gas Pipe Bridge Crossing the River Taff, Porth
  • 30 March 2020
    The Commission for Regulation of Utilities (CRU) has appointed Long O Donnell as one of the suppliers on the Framework to provide Gas Advice (Distribution, Transmission, Metering).
  • 30 March 2020
    Detailed Design for a proposed diversion of a High-Pressure gas pipeline at Mamhilad, Pontypool
  • 23 March 2020
    BUSINESS AS USUAL Following the UK Government’s advice we have stopped all non-essential travel with our staff continuing to work and support our Clients through remote working via tele-conferencing, video-calls, Teams & SharePoint. We will continue to monitor and adapt to the advice being provided.
  • 24 February 2020
    Long O Donnell recently secured a place on the Irish Health Services Executive Framework for 3 years, to provide Quantity Surveying Services across Ireland for Non-Acute Hospitals for works which are valued at less than €5M.
  • 24 February 2020
    Long O Donnell secure Quantity Surveying Framework for Derbyshire Police and Crime Commissioner plus Derbyshire Fire and Rescue Service
  • 24 February 2020
    Long O Donnell’s Annual Achilles UVDB Verify Audit Results
  • 24 February 2020
    Long O Donnell successfully secured a framework contract with Gas Networks Ireland for the Electrical, Control and Instrumentation Team.
  • 24 February 2020
    Following the successful tender and interview process Southern Water awarded Long O Donnell a contract for procurement services.

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Ensuring Value in Procurement, Engineering and Delivery......

Long O Donnell Associates  is continually recognised as a world class consultant providing engineering, project and programme management and commercial solutions, to our clients within the energy, infrastructure and Governmental sectors.

Providing consistently high results time and time again, we are today supporting many major complex projects and programmes with our skills in commercial and contracts, design and engineering, project delivery and health, safety and environmental services.

Our dedicated team have been brought together over many years, and it is our team of experienced and competent individuals that makes this happen 

We are extremely proud of our developing team in helping us achieve our vision by providing a flexible and outstanding service to our clients.








Our Online Portfolio

We have successfully undertaken a significant portfolio of major projects and programmes in the energy and infrastructure sectors throughout the world and provide details of these:


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Long O Donnell Associates are world class consultants within the Energy and Infrastructure sectors. Expert services include providing design and engineering, project delivery, commercial and contract services alongside health, safety and environmental consultancy to government, local authorities, owners, operators and their supply chains. Engineering Project Management and Commercial Services to the Energy and Infrastructure Industry Worldwide.