Nicholas O’Dwyer, formed in 1932 and operating in Ireland, the UK, the Middle East and Africa, is a world-leading engineering consultancy, providing water, environmental planning, design, construction supervision, technical and contractor advisory and civil and structural engineering services. It assists a wide range of public and private sector clients, including those in the water, wastewater, tunnelling, transportation, telecommunications, asset management, energy and renewables, climate resilience and construction industries.


Nicholas O’Dwyer provides construction supervision and contract management services, with knowledgeable specialists working to facilitate the delivery of many large-scale developments via technical expertise, monitoring and quality controlling construction work and assisting with specific contractual procedures and conditions, as well as being aware of local customs and participating in community liaison and engagement.

The business has experience across the entire design cycle, from the concept and feasibility stage to front-end engineering design, detailed design, procurement, contract and construction management, handover and decommissioning. Engineering design services are provided, and the business works with clients to understand their needs and to find innovative solutions that ensure the most economical and sustainable results.

Environmental and planning services are offered to determine the impacts of a project and to develop solutions with implementable mitigation measures, adhering to both client requirements and all applicable environmental legislation, guidance and best practice.

Nicholas O’Dwyer is an industry leader in project management, delivering complex infrastructure projects. Combining technical understanding with project, programme and cost management expertise, it ensures realistic goals are established and project milestones are adhered to with robust planning processes, timely delivery of data and reliable ISO-accredited systems.

Offering a bespoke contracts advisory service, its multidisciplinary team of experts is able to provide due diligence reviews, procurement advice and governance, contract strategy and risk management, contract administration supervision, project controls/management office, change and claim management, adverse project conditions analysis and more. It can also provide services relating to expert reports and coordinating inputs for formal processes, dispute boards, expert determination, adjudication and arbitration proceedings.

Nicholas O’Dwyer won the prestigious 2022 Association of Consulting Engineers of Ireland (ACEI) Engineering Excellence Award for Project Management for its work on the Vartry Water Supply Scheme in Ireland and the Project of the Year Award for the Cork Lower Harbour Main Drainage Scheme. Some of its clients and projects include the Sumbawanga–Matai–Kasanga Port Road for the Government of the United Republic of Tanzania; the Strategic Pipeline Alliance – Complex Crossings project for Anglian Water; telecommunications audits for various clients, such as 2rn and BT; and several projects involving clients such as the World Bank, European Union and African Development Bank.

Business highlights

RSK-Greenwich partnership puts sustainability and employability at heart of new curriculum news

RSK-Greenwich partnership puts sustainability and employability at heart of new curriculum

New sewerage catchment infrastructure, Addis Ababa, Ethiopia projects

New sewerage catchment infrastructure, Addis Ababa, Ethiopia

Design review and supervision of Milange-Mocuba corridor road, Mozambique projects

Design review and supervision of Milange-Mocuba corridor road, Mozambique

Technical assistance on Lesotho lowlands water development project projects

Technical assistance on Lesotho lowlands water development project

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