This is a list of notable companies based in Ireland, or subsidiaries according to their sector. It includes companies from the entire island. The state of the Republic of Ireland covers five-sixths of the island, with Northern Ireland, part of the United Kingdom, covering the remainder in the north-east. Each has separate regulatory and registration authorities.
About companies in Ireland
Irish companies fall into three categories:
Private limited companies, which carry the suffix "Limited" (Ltd) or "Teoranta" (Teo), and whose shares are privately held.
Public limited companies, which carry the suffix "plc" or "cpt" and whose shares may be listed on a stock exchange. Where this is the case, it is noted in this article.
Company Limited by Guarantee, this type of company has members, not shareholders, as such generally limited to trade associations and not-for-profit bodies.
Companies in the Republic of Ireland must be registered with the Companies Registration Office, and comply with the provisions of the Companies Acts. Companies in Northern Ireland must be registered with the Department of Enterprise, Trade and Investment's Companies Registry. Certain Northern Ireland organisations are dealt with on a UK-wide basis and are dealt with by Companies House.
Some entries on this list may be statutory corporations - a business form governed by a board appointed by an Irish Government minister under a particular piece of legislation - not formally companies as such, but are effectively treated as such and are included on this list as they are usually large business. For more details on this form of governance, see state-sponsored bodies of Ireland.
Some mutual bodies, such as building societies, are also included on this list.
Some entries such as O2 Ireland and Intel Ireland are subsidiaries of foreign companies. These subsidiaries are listed because the Irish economy is significantly dependent on foreign companies in comparison to other nations and these multinational companies are major Irish employers and tax contributors - Intel employs over 5000 people.
Banks and financial institutions
ACCBank - subsidiary of Rabobank
Allied Irish Banks (AIB) - quoted on ISE, LSE and NYSE
Bank of Ireland - quoted on ISE, LSE, and NYSE
Danske Bank, quoted on Copenhagen Stock Exchange
EBS d.a.c. - a subsidiary of Allied Irish Banks
FBD Holdings - quoted on ISE & LSE
First Trust Bank - Northern Ireland subsidiary of Allied Irish Banks
KBC Bank Ireland - formerly IIB Bank
Permanent TSB - financial services
Ulster Bank - subsidiary of The Royal Bank of Scotland Group, not quoted
Barry's Tea - one of the largest importers of tea in Ireland
Butlers Chocolates - manufacturer of luxury chocolate and chocolate products
Cantrell and Cochrane C&C - quoted on ISE and LSE
Condensed Milk Company of Ireland - ceased in 1974, subsumed into Kerry Group
EDUN - fashion brand to encourage trade with Africa
Fyffes - banana importers, quoted on ISE and LSE
Glanbia - quoted on ISE and LSE
Greencore - quoted on ISE and LSE
Guinness - part of Diageo
Heatons - department store
Kerry Group - quoted on ISE
Oatfield - oldest confectionery company in Ireland
Poplar Linens - textile company
Tipperary Natural Mineral Water - Irish brand of mineral water, part of the Gleeson Group
Electronics and technology
Accenture - headquarters, Dublin
Analog Devices - headquarters, Limerick
Amazon.com - world's largest online retailer, Located in Dublin
Apple Inc. - EMEA Headquarters, Hollyhill, Cork City
Airbnb - European headquarters, Dublin
Baltimore Technologies - renamed to Oryx International Growth Fund; quoted on LSE
Cisco - located in Oranmore, Co. Galway
Cúram Software - produces social enterprise management software, acquired by IBM
DCC - quoted on ISE and LSE
Dell Ireland - subsidiary of Dell, quoted on NASDAQ
Dropbox - EMEA Headquarters, Dublin
eBay - EMEA Headquarters, Blanchardstown, Dublin 15
EMC Ireland - subsidiary of EMC Corporation
Facebook - EMEA Headquarters, Barrow Street, Dublin 4
Farmflo - EMEA Headquarters, Letterkenny
Fineos - headquarters, Dublin
Glen Dimplex - manufacturer of consumer electrical goods
Google Ireland - EMEA Headquarters, Barrow Street, Dublin 4
Havok - acquired by Intel Corporation in 2007, now owned by Microsoft Corporation as of 2015.
Hewlett-Packard - Liffey Park Technology Campus (LPTC), Leixlip, Kildare
IBM - quoted on NYSE
Indeed EMEA Headquarters, 124/127 St Stephen’s Green, Dublin 2.
Infosys
Intel Ireland - Leixlip, Kildare; largest manufacturing plant outside of the United States
IONA Technologies - acquired by Progress Software in 2008
LinkedIn - EMEA Headquarters, Wilton Place, Dublin
Logitech - R&D, S&M, finance, Cork
Microsoft Ireland - subsidiary of Microsoft, quoted on NASDAQ
NewBay Software - acquired by Research In Motion in 2011; sold to Synchronoss in 2012
Norkom Technologies - now a part of Detica
Openet - produces software for the telecoms industry
Oracle - Oracle EMEA Limited; based at East Point Business Park Fairview Dublin 3
PayPal - EMEA Headquarters, Blanchardstown, Dublin
Salesforce.com - SFDC Ireland Ltd.; based in the Atrium Sandyford Business Park, Dublin 18, Ireland
SAP AG - SAP SSC Ireland Ltd.; based in Citywest Business Park, Dublin 24 and Galway, Parkmore Business Park
Symantec Ireland
Tata Consultancy Services - Ballsbridge, Dublin 4
Twitter - EU Headquarters, Dublin
Uber - EU Headquarters, Limerick
Workday - EU Headquarters, Dublin
Xilinx - FPGA and EDA tool company
Yahoo - EU Headquarters, Dublin
Yelp - EU Headquarters, Dublin
Zamano - quoted on AIM
Energy and infrastructure
Airtricity - electricity generation - subsidiary of Scottish and Southern Energy
Aventas group - formerly the QUINN group; a business group of diverse interests
Bord na Móna
CRH plc - quoted on ISE, NYSE and LSE
Electricity Supply Board - electricity distribution and generation
Ervia - gas and electricity distribution
Kedco - renewable energy
Northern Ireland Electricity - subsidiary of Electricity Supply Board
NTR plc - infrastructure development; shares sold on grey market
Viridian - electricity generation; quoted on ISE
Buy&Sell – Irish owned classified Ads website and newspaper
Independent News & Media – quoted on ISE and FTSE
Irish Times Trust
Radio Telefís Éireann (RTÉ)
Setanta Sports
TG4 – TG Ceathair, Irish-language channel
Thomas Crosbie Holdings
Today FM – subsidiary of Communicorp
TV3 Group – subsidiary of Virgin Media Ireland
Wireless Group – quoted on LSE and ISE
Pharmaceuticals and biotechnology
Abbott Laboratories - located in Longford
Covidien
Élan - quoted on ISE and NYSE
Hoffmann-La Roche - located in Basel, Switzerland
Pfizer - located in New York, USA
Shire Plc - quoted on LSE and NASDAQ
United Drug - quoted on ISE and LSE
Warner Chilcott - previously known as Galen; quoted on ISE and LSE
Restaurants and cafes
Abrakebabra
Apache Pizza
Bewleys
Costa Coffee Ireland - run by MBCC Foods Ireland under franchise from Whitbread plc
Eddie Rockets
Four Star Pizza
Insomnia Coffee Company
Metzo
O'Briens Irish Sandwich Bars
Supermac's
Starbucks
Arnotts
BWG Foods
Dealz - discount retail stores
Dunnes Stores
Eason & Son
Guineys
Heatons - acquired by Sports Direct (UK)
Musgrave Group
Penneys - subsidiary of Associated British Foods
Smyths
SuperValu
Tesco Ireland - subsidiary of Tesco, formerly Quinnsworth and Crazy Prices; quoted on ISE and LSE
An Post National Lottery Company - national lottery, subsidiary of An Post
Boylesports - betting shops
Laya Healthcare - private health insurance
Paddy Power - betting shops; quoted on ISE
Prize Bond Company Limited - prize bonds, subsidiary of An Post/FEXCO
Vhi Healthcare - private health insurance; statutory corporation
Telecoms and communications
An Post - state-sponsored body
BlueFace
BT Ireland - subsidiary of BT; formerly Esat BT; quoted on LSE
Digiweb
Eir
Ericsson - located in Clonskeagh, Dublin
Magnet Networks
Meteor - subsidiary of Eir
Smart Telecom - quoted on AIM
Three Ireland - subsidiary of CK Hutchison Holdings, quoted on HKSE
Virgin Media Ireland - subsidiary of Liberty Global, quoted on NASDAQ
Vodafone Ireland - subsidiary of Vodafone; formerly Eircell
Airlines and ferries
Aer Arann
Aer Lingus
Aer Lingus Regional
CityJet - subsidiary of Air France-KLM, quoted on Euronext Paris
Dublin Airport Authority
Irish Continental - quoted on ISE, known as Irish Ferries
Irish Ferries
Ryanair - quoted on ISE, NYSE and LSE
Thomson Airways
Bus and rail
Aircoach - subsidiary of FirstGroup, quoted on LSE
The Airporter - providing a coach connection between Derry City and Belfast airports
Citylink - subsidiary of Scottish Citylink
Córas Iompair Éireann (CIÉ):
Bus Átha Cliath - Dublin Metropolitan area bus company
Bus Éireann - Irish national bus company
Iarnród Éireann - Irish rail company
Northern Ireland Transport Holding Company (Translink)
Metro - formerly Citybus
Northern Ireland Railways
Ulsterbus
Ulsterbus Foyle
Railway Procurement Agency - developer of the Luas light rail system
Wrightbus - coach-builder
GoCar
