Name
|
Industry
|
Sector
|
Headquarters
|
Founded
|
Notes
|
Abrakebabra
|
Consumer services
|
Food Retailers & Wholesalers
|
Dublin
|
1982
|
Fast-food, part of Abrakebabra Investments
|
Abrakebabra Investments
|
Consumer services
|
Food Retailers & Wholesalers
|
Dublin
|
1982
|
Restaurant holding company
|
Accenture
|
Industrials
|
Business support services
|
Dublin
|
1989
|
Management consulting
|
Aer Lingus
|
Consumer services
|
Airlines
|
Dublin
|
1936
|
Flag carrier, part of International Airlines Group (Spain)
|
Aer Lingus Regional
|
Consumer services
|
Airlines
|
Dublin
|
2010
|
Commuter and regional airline, part of Aer Lingus
|
AerCap
|
Industrials
|
Transport
|
Dublin
|
2006
|
Aircraft leasing
|
Aircoach
|
Consumer services
|
Travel & tourism
|
Dublin
|
1999
|
Part of FirstGroup (UK)
|
Airtricity
|
Utilities
|
Alternative electricity
|
Dublin
|
1997
|
Electricity generation, part of Scottish and Southern Energy (UK)
|
Allied Irish Banks (AIB)
|
Financials
|
Banks
|
Dublin
|
1966
|
One of the Big Four banks
|
An Post
|
Industrials
|
Delivery services
|
Dublin
|
1984
|
Postal services
|
Apache Pizza
|
Consumer services
|
Food Retailers & Wholesalers
|
Dublin
|
2006
|
Pizza chain
|
Aptiv
|
Industrials
|
Automotive
|
Dublin
|
1994
|
Automotive technology supplier
|
Arnotts
|
Consumer services
|
Broadline retailers
|
Dublin
|
1843
|
Department store, part of Selfridges (UK)
|
Baltimore Technologies
|
Technology
|
Internet
|
Dublin
|
1976
|
Part of Oryx International Growth Fund
|
Bank of Ireland
|
Financials
|
Banks
|
Dublin
|
1783
|
One of the Big Four banks
|
Barry's Tea
|
Consumer goods
|
Beverages
|
Cork
|
1901
|
One of the largest importers of tea in Ireland
|
Bewley's
|
Consumer services
|
Food Retailers & Wholesalers
|
Dublin
|
1840
|
Hot beverages
|
Bord na MĂłna
|
Utilities
|
Multiutilities
|
Newbridge
|
1946
|
Power generation and land development
|
Boylesports
|
Consumer services
|
Gambling
|
Dundalk
|
1989
|
Betting shops
|
BT Ireland
|
Telecommunications
|
Fixed line telecommunications
|
Dublin
|
1990
|
Part of BT Group (UK), formerly Esat BT
|
Bus Éireann
|
Consumer services
|
Travel & tourism
|
Dublin
|
1987
|
Irish national bus company, part of CIÉ
|
Butlers Chocolates
|
Consumer goods
|
Food products
|
Dublin
|
1932
|
Luxury chocolate and chocolate products
|
BWG Foods
|
Consumer services
|
Food retailers & wholesalers
|
Dublin
|
1963
|
Wholesaler and grocery franchise
|
C&C Group
|
Consumer goods
|
Brewers
|
Dublin
|
1852
|
Alcoholic drinks
|
Central Bank of Ireland
|
Financials
|
Banks
|
Dublin
|
1943
|
Central bank and financial services regulator
|
CIÉ
|
Consumer services
|
Travel & tourism
|
Dublin
|
1945
|
Public transportation
|
CityJet
|
Consumer services
|
Airlines
|
Dublin
|
1992
|
Regional airline
|
Communicorp
|
Consumer services
|
Broadcasting & Entertainment
|
Dublin
|
1989
|
Media holdings
|
Covidien
|
Health care
|
Medical equipment
|
Dublin
|
2007
|
Merged with Medtronic in 2016
|
CRH plc
|
Industrials
|
Building materials & fixtures
|
Dublin
|
1936
|
Building materials and retail
|
CĂşram Software
|
Technology
|
Software
|
Dublin
|
1990
|
Social enterprise management software, acquired by IBM
|
DAA
|
Consumer services
|
Transportation services
|
Dublin
|
1937
|
Airport management, formerly the Dublin Airport Authority
|
DCC Plc
|
Industrials
|
Business support services
|
Dublin
|
1976
|
Sales and marketing support
|
Dealz
|
Consumer services
|
Broadline retailers
|
Dublin
|
2011
|
Discount retail, part of Poundland (UK)
|
Digiweb
|
Telecommunications
|
Fixed line telecommunications
|
Dundalk
|
1997
|
Broadband
|
Doolittles
|
Consumer services
|
Food Retailers & Wholesalers
|
Laghey
|
2001
|
Lliquidated in 2009
|
Dublin Bus
|
Consumer services
|
Travel & tourism
|
Dublin
|
1987
|
Bus company, part of CIÉ
|
Dunnes Stores
|
Consumer services
|
Broadline retailers
|
Dublin
|
1944
|
Retail chain
|
Eaton Corporation
|
Conglomerate
|
-
|
Dublin
|
1911
|
-
|
Eason & Son
|
Consumer services
|
Specialty retailers
|
Dublin
|
1819
|
Book stores
|
EBS
|
Financials
|
Banks
|
Dublin
|
1935
|
Financing
|
Eddie Rocket's
|
Consumer services
|
Food Retailers & Wholesalers
|
Dublin
|
1989
|
American-style food chain
|
EDUN
|
Consumer goods
|
Clothing & accessories
|
Dublin
|
2005
|
Fashion brand, part of LVMH (France)
|
Eir
|
Telecommunications
|
Fixed line telecommunications
|
Dublin
|
1999
|
Broadband
|
Eir Sport
|
Consumer services
|
Broadcasting & Entertainment
|
Dublin
|
1990
|
Sports television, part of Eir
|
Energia Group
|
Utilities
|
Conventional electricity
|
Belfast
|
1998
|
Electricity generation, formerly Viridian Group
|
EQTEC
|
Utilities
|
Alternative electricity
|
Cork
|
2005
|
Renewable energy
|
Ervia
|
Utilities
|
Gas distribution
|
Cork
|
1976
|
Gas and electricity distribution
|
ESB Group
|
Utilities
|
Conventional electricity
|
Dublin
|
1927
|
Electricity distribution and generation
|
Experian
|
Financials
|
Business services
|
Dublin
|
1996
|
Credit services
|
FBD Holdings
|
Financials
|
Full line insurance
|
Dublin
|
1969
|
Auto and property insurance
|
FINEOS
|
Technology
|
Software
|
Dublin
|
1993
|
Software development
|
First Trust Bank
|
Financials
|
Banks
|
Belfast
|
1991
|
One of the Big Four banks, part of Allied Irish Banks
|
Four Star Pizza
|
Consumer services
|
Food Retailers & Wholesalers
|
Dublin
|
1986
|
Fast-food pizza chain
|
Fyffes
|
Consumer goods
|
Food products
|
Dublin
|
1888
|
Banana and fruit importers
|
Glanbia
|
Consumer goods
|
Food products
|
Kilkenny
|
1997
|
Nutrition
|
GlenDimplex
|
Consumer goods
|
Consumer electronics
|
Dublin
|
1973
|
Manufacturer of consumer electrical goods
|
GoCar
|
Consumer services
|
Specialized consumer services
|
Dublin
|
2008
|
Car sharing service
|
Greencore
|
Consumer goods
|
Food products
|
Dublin
|
1991
|
Food conglomerate
|
Guineys
|
Consumer services
|
Apparel retailers
|
Dublin
|
1971
|
Clothing and department stores
|
Guinness
|
Consumer goods
|
Brewers
|
Dublin
|
1759
|
Part of Diageo (UK)
|
Havok
|
Technology
|
Software
|
Dublin
|
1998
|
Software development, part of Microsoft (US)
|
Heatons
|
Consumer services
|
Broadline retailers
|
Dublin
|
1946
|
Department stores, part of Sports Direct (UK)
|
Horizon Therapeutics
|
Consumer services
|
Biopharmaceutical
|
Dublin
|
2005
|
Pharmaceutical
|
Iarnród Éireann
|
Consumer services
|
Travel & tourism
|
Dublin
|
1987
|
Passenger rail company, part of CIÉ
|
Independent News & Media
|
Consumer services
|
Publishing
|
Dublin
|
1904
|
News publisher
|
Insomnia Coffee Company
|
Consumer services
|
Food Retailers & Wholesalers
|
Dublin
|
1997
|
Coffee chain
|
Intel Ireland
|
Technology
|
Semiconductors
|
Leixlip
|
1989
|
Largest manufacturing plant outside of the United States
|
IONA Technologies
|
Technology
|
Software
|
Dublin
|
1991
|
Acquired by Progress Software in 2008
|
Irish Citylink
|
Consumer services
|
Travel & tourism
|
Dublin
|
1994
|
Part of ComfortDelGro (Singapore)
|
Irish Continental Group
|
Industrials
|
Industrial transportation
|
Dublin
|
1972
|
Shipping and transport
|
Irish Ferries
|
Industrials
|
Industrial transportation
|
Dublin
|
1992
|
Part of Irish Continental Group
|
Johnson Controls
|
Industrials
|
Electrical components & equipment
|
Cork
|
1885
|
Electronic equipment
|
KBC Bank Ireland
|
Financials
|
Banks
|
Dublin
|
1973
|
Formerly IIB Bank
|
Kerry Group
|
Consumer goods
|
Food products
|
Tralee
|
1972
|
Food and dairy
|
Kingspan Group
|
Industrials
|
Building materials
|
Dublin
|
1966
|
Building materials
|
Laya Healthcare
|
Financials
|
Life insurance
|
Little Island
|
1997
|
Private health insurance
|
Linde
|
Basic materials
|
Speciality chemicals
|
Dublin
|
1879
|
Chemical industry
|
Magnet Networks
|
Telecommunications
|
Fixed line telecommunications
|
Dublin
|
2004
|
Broadband
|
Mannok
|
Industrials
|
Building materials & fixtures
|
Derrylin
|
1973
|
Construction, formerly Aventas and the QUINN group
|
Medtronic
|
Health care
|
Medical equipment
|
Dublin
|
1949
|
Medical devices, operational headquarters in Fridley, Minnesota (US)
|
Meteor
|
Telecommunications
|
Mobile telecommunications
|
Dublin
|
1998
|
Merged into Eir
|
Metro
|
Consumer services
|
Travel & tourism
|
Belfast
|
1973
|
Formerly Citybus, part of Northern Ireland Transport Holding Company
|
Musgrave Group
|
Consumer services
|
Food retailers & wholesalers
|
Cork
|
1876
|
Food and grocery
|
National Lottery
|
Consumer services
|
Gambling
|
Dublin
|
1987
|
National lottery, part of private firm Premier Lotteries Ireland
|
News Broadcasting
|
Consumer services
|
Broadcasting & Entertainment
|
Belfast
|
2007
|
Radio and television
|
NI Railways
|
Consumer services
|
Travel & tourism
|
Belfast
|
1967
|
Passenger rail, part of Northern Ireland Transport Holding Company
|
Norkom
|
Technology
|
Software
|
Dublin
|
1998
|
Now a part of Detica
|
Northern Ireland Electricity
|
Utilities
|
Conventional electricity
|
Belfast
|
1991
|
Part of ESB Group
|
Northern Ireland Transport Holding Company
|
Consumer services
|
Travel & tourism
|
Belfast
|
1967
|
Holding company for passenger bus and rail, branded as Translink
|
NTR plc
|
Utilities
|
Alternative electricity
|
Dublin
|
1978
|
Infrastructure development
|
Oatfield
|
Consumer goods
|
Food products
|
Letterkenny
|
1927
|
Defunct, brand now part of Zed Candy
|
O'Briens Irish Sandwich Bars
|
Consumer services
|
Food Retailers & Wholesalers
|
Dublin
|
1988
|
Sandwich chain, part of Abrakebabra Investments
|
Openet
|
Technology
|
Software
|
Dublin
|
1999
|
Telecom software
|
Paddy Power
|
Consumer services
|
Gambling
|
Dublin
|
1988
|
Betting shops
|
Pat the Baker
|
Consumer goods
|
Baked goods
|
Granard
|
1953
|
Bakery
|
Perrigo
|
Health care
|
Pharmaceuticals
|
Dublin
|
1887
|
Pharmaceutical
|
Permanent TSB
|
Financials
|
Life insurance
|
Dublin
|
1884
|
Financial services, life insurance
|
Penneys
|
Consumer services
|
Apparel retailers
|
Dublin
|
1962
|
Part of Associated British Foods (UK)
|
Rabobank Ireland
|
Financials
|
Banks
|
Dublin
|
1994
|
Part of Rabobank (Netherlands)
|
RaidiĂł TeilifĂs Éireann (RTÉ)
|
Consumer services
|
Broadcasting & Entertainment
|
Dublin
|
1960
|
Television and radio
|
Rothco
|
Business services
|
Marketing & advertising
|
Dublin
|
1995
|
Advertising agency
|
Ryanair
|
Consumer services
|
Airlines
|
Dublin
|
1985
|
Low-cost airline
|
Shire
|
Health care
|
Pharmaceuticals
|
Dublin
|
1986
|
Biopharmaceutical
|
Smart Telecom
|
Telecommunications
|
Mobile telecommunications
|
Dublin
|
1989
|
Telecom, defunct 2011
|
Smurfit Kappa
|
Consumer goods
|
Paper
|
Dublin
|
1934
|
Packaging
|
Smyths
|
Consumer services
|
Specialty retailers
|
Galway
|
1986
|
Toy retailer
|
Stobart Air
|
Consumer services
|
Airlines
|
Dublin
|
2014
|
Regional airline, defunct 2021
|
Supermac's
|
Consumer services
|
Food Retailers & Wholesalers
|
Ballybrit
|
1978
|
Fast food chain
|
SuperValu
|
Consumer services
|
Food retailers & wholesalers
|
Cork
|
1968
|
Supermarkets, part of Musgrave Group
|
TeilifĂs na Gaeilge
|
Consumer services
|
Broadcasting & Entertainment
|
Baile na hAbhann
|
2007
|
Operator of TG4 and CĂşla 4
|
Tesco Ireland
|
Consumer services
|
Food retailers & wholesalers
|
Dublin
|
1997
|
Supermarkets, part of Tesco (UK)
|
The Airporter
|
Consumer services
|
Travel & tourism
|
Derry
|
1990
|
Coach connection between Derry and Belfast airports
|
The Irish Times
|
Consumer services
|
Publishing
|
Dublin
|
1859
|
Daily newspaper
|
Thomas Crosbie Holdings
|
Consumer services
|
Publishing
|
Cork
|
1841
|
Newspaper holdings, defunct 2013
|
Three Ireland
|
Telecommunications
|
Fixed line telecommunications
|
Dublin
|
2005
|
Part of CK Hutchison Holdings (Hong Kong)
|
Tipperary Natural Mineral Water
|
Consumer goods
|
Beverages
|
Borrisoleigh
|
1986
|
Mineral water, part of the Gleeson Group
|
Today FM
|
Consumer services
|
Broadcasting & Entertainment
|
Dublin
|
1997
|
Subsidiary of Communicorp
|
Trane Technologies
|
Conglomerate
|
-
|
Swords
|
1871
|
-
|
Transport Infrastructure Ireland
|
Industrials
|
Heavy construction
|
Dublin
|
2015
|
National road and public transport infrastructure
|
Virgin Media Television
|
Consumer services
|
Broadcasting & Entertainment
|
Dublin
|
1998
|
Television, part of Virgin Media Ireland
|
UDG Healthcare
|
Health care
|
Pharmaceuticals
|
Dublin
|
1948
|
Health care support
|
Ulster Bank
|
Financials
|
Banks
|
Dublin
|
1836
|
Big Four bank, part of NatWest Group (UK)
|
Ulsterbus Foyle
|
Consumer services
|
Travel & tourism
|
Derry
|
2006
|
Bus, part of Northern Ireland Transport Holding Company
|
Ulsterbus
|
Consumer services
|
Travel & tourism
|
Belfast
|
1967
|
Bus, part of Northern Ireland Transport Holding Company
|
Vhi Healthcare
|
Financials
|
Life insurance
|
Purcellsinch
|
1957
|
Health insurance
|
Virgin Media Ireland
|
Telecommunications
|
Fixed line telecommunications
|
Dublin
|
2005
|
Subsidiary of Liberty Global (US)
|
Vizor
|
Technology
|
Software
|
Dublin
|
2000
|
Creator of regulator software for central banks
|
Vodafone Ireland
|
Telecommunications
|
Mobile telecommunications
|
Dublin
|
1984
|
Subsidiary of Vodafone (UK), formerly Eircell
|
Wrightbus
|
Industrials
|
Commercial vehicles & trucks
|
Ballymena
|
1946
|
Coach-builder
|