Our clients are international corporations, private enterprises, the public sector and governments. They recognise the value created by Byrne Ó Cléirigh and they forge enduring, long term relationships with us. Click on each sector below to review our client list.
- Ballynagran Landfill
- Bord na Móna
- Coillte
- Compagnie Générale des Eaux
- Endesa
- Energia
- ESB International
- Green Biofuels
- Greenstar
- Indaver
- IREET
- Irish Wind Energy Association (IWEA)
- Knockharley Landfill
- One51
- Pacsort
- Solid Fuel Trade Group
- SSE Generation
- Stream BioEnergy
- Tynagh Energy
- Applegreen
- Calor
- Circle K
- Flogas
- Inver Energy
- Irish LPG Association
- Irish National Petroleum Corporation
- Irish Offshore Operators Association
- Irish Petroleum Industry Association
- Irish Tar & Bitumen
- Irving Oil
- Marathon Petroleum
- National Oil Reserves Agency
- Oikos
- Oil Industry Logistics
- Palermo Tanks SAS
- Petroplus
- Phillips 66
- Phillips Petroleum
- Premcor
- SemEuro
- Shannon LNG
- Shell
- Simon Storage
- TOP
- Topaz
- Vitol Energy
- Zenith Energy
- Alkermes
- Astellas
- Athlone Laboratories
- Bristol Myers Squibb
- Cosmetic Toiletry & Perfumery Association
- Eli Lilly
- Genzyme
- Glaxo
- Imperial Chemical Industries
- Labscan Analytical Services
- MSD Ireland
- Mustafa Nevzat Pharmaceuticals
- Newport Synthesis
- Novartis
- Pfizer
- Prosintex Industrie Chimiche Italiane
- Roche
- Schering-Plough
- Schwarz Pharma
- Sigma-Aldrich
- Zoetis
- Aurivo
- Blacks Brewery & Distillery
- Bonac
- Bulmers
- C&D Foods
- Diageo
- European Brewery Convention
- Glanbia
- Great Northern Distillery
- Irish Distillers Pernod Ricard
- Mondeléz
- J Donohue Beverages
- Lakeland Dairies
- West Cork Distillers
- William Grant & Sons
- Wrights of Marino
- Yeast Products Company
- Allergan
- Beckman Coulter
- Becton Dickinson
- Cardinal Health
- Hollister
- Integer
- Medtronic
- Norton Rose
- Travenol
- Acco Rexel
- Amcor Flexibles
- Amcor Rentsch
- Analog Devices
- Athlone Extrusions
- Barlo Group
- ITW Performance Polymers
- Kayfoam Woolfson
- Kenilworth Products
- Plastics Ireland
- PPI Adhesive Products
- Smurfit Kappa
- Rigid Containers
- Smurfit Paper Mills
- Standish Sawmills
- Veha Radiators
- Xerox
- Aughinish Alumina
- Euromin
- Glencore
- Gypsum Industries
- Kubikenborg Aluminium
- Norsk Hydro Canada
- Orica
- Premier Periclase
- Tara Mines
- Belfast Harbour Commissioners
- Bus Éireann
- C&G Logistics
- Dachser
- Dixon Logistics
- Dublin Port Company
- Dublin Weston Airport
- Murphy Transport
- Iarnród Éireann
- Lufthansa
- Port of Cork
- Shannon Airport Authority
- A&L Goodbody Solicitors
- Bank of Scotland
- Byrne Wallace Solicitors
- Cairnwaith
- Designer Group
- Fluor
- Hiberian Insurance
- Imtech-Suir
- Matheson Solicitors
- Macquarie Bank
- QBE Insurance
- Ropes & Gray LLP Solicitors
- Sustainable Development Capital LLP
- William Fry Solicitors
- Zurich Insurance
- An Bord Pleanála (IRL)
- Ballymun Regeneration
- Commission for Regulation of Utilities (IRL)
- Department of Communications, Energy & Natural Resources (IRL)
- Department of Environment, Heritage & Local Government (IRL)
- Department of Jobs, Enterprise & Innovation (IRL)
- Department of Justice & Law Reform (IRL)
- Department of Trade & Industry (UK)
- Department of Transport (IRL)
- Dublin City Council
- Environmental Protection Agency (IRL)
- European Commission
- Forfás (IRL)
- Galway City Council
- Government of Slovenia
- Health & Safety Authority (IRL)
- Health Research Board (IRL)
- IDA Ireland
- International Finance Corporation (World Bank)
- Kildare County Council
- Marine Institute (IRL)
- Mayo County Council
- National Audit Office (UK)
- Oberstown Children Detention Campus
- Offaly County Council
- Office of Public Works (IRL)
- South Dublin County Council
- State Claims Agency (IRL)
- Sustainable Energy Authority of Ireland (SEAI)
- United Nations Industrial Development Organisation (UNIDO)
- Tipperary County Council
- Wexford County Council
- Wicklow County Council
- Coolmore
- Duggan Brothers
- JJ Rhatigan
- Sicon
- Stafford Group