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ISOQAR ISO9001, 18001, 14001

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.