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49 leading corporate groups and holding companies in Ireland

Tamtam tracks 55 corporate groups and holding companies headquartered in Ireland. This list ranks the 49 largest by number of employees on LinkedIn, led by Cimpress, Keywords Studios and Flutter Entertainment. Their median headcount is 664. Half of them were founded in 1988 or later. The most common headquarters are Dublin (23), Belfast (2) and Cork (2).

馃嚠馃嚜 Ireland49 companiesUpdated Nov 12, 2026

This list contains corporate groups and holding companies based in Ireland. These firms operate across various sectors, including technology, entertainment, utilities, and construction. Notable companies include Cimpress, which invests in mass-customization businesses; Keywords Studios, a creative services provider for the video games industry; Flutter Entertainment, a global provider of sports betting and gaming; and ESB, focused on providing sustainable electricity supplies.

The data shows a strong concentration of headquarters in Dublin, with many of these companies having a global reach. For instance, DCC plc is a global group providing solutions in energy, healthcare, and technology across 22 countries, while Dole plc grows, sources, packs, markets, and distributes fresh produce globally.

#CompanyIndustryHeadquarters EmployeesFounded
1
Cimpresscimpress.com

Cimpress plc invests in mass-customization businesses, providing personalized products to meet individual customer needs with near mass production efficiency

Technology, Information and Internet 馃嚠馃嚜 Dundalk 12,460 1995
2
Keywords Studioskeywordsstudios.com

A leading creative services provider for the global video games industry, offering end-to-end solutions and support across all aspects of game development

Computer Games 馃嚠馃嚜 Dublin 11,828 1998
3
Flutter Entertainmentflutter.com

Global provider of sports betting, gaming, and entertainment, serving over 18 million customers worldwide through leading consumer brands Vision to be global online leader

Entertainment Providers 馃嚠馃嚜 Dublin 7,681 n/a
4
Descon Engineering Limiteddescon.com

An integrated engineering services and manufacturing company operating in Pakistan and the Middle East, delivering client-specific solutions for Energy, Infrastructure, and Process industries

Education 馃嚠馃嚜 Lahore 6,444 n/a
5
ESBesb.ie

A company focused on providing secure, sustainable, and affordable electricity supplies to enhance societal, economic well-being, driven by innovation and collaboration for a brighter future

Utilities 馃嚠馃嚜 Dublin 4,937 1927
6
Flutter Internationalcareers.flutterinternational.com

Global sports betting, gaming, and entertainment provider with innovative brands focused on championing play, empowerment, and teamwork for millions of customers worldwide

Entertainment Providers 馃嚠馃嚜 Dublin 4,076 n/a
7
DCC plcdccenergy.com

A global group providing solutions in energy, healthcare, and technology sectors through diverse businesses across 22 countries, driving long-term value creation

Executive Offices 馃嚠馃嚜 Dublin 3,820 1976
8
An Postanpost.com

Provides postal, communication, retail, and financial services across Ireland with a large national network and over 10,000 employees.

Utilities 馃嚠馃嚜 Dublin 3,117 n/a
9
Jones Engineeringjoneseng.com

Multi-disciplined engineering contracting company providing a complete range of engineering and building services installations globally, working with multi-nationals and delivering projects safely

Construction 馃嚠馃嚜 Dublin 3,019 1890
10
John Sisk & Son Ltdsisk.com

Innovative engineering and construction company with extensive operations across Ireland, UK, and Europe, providing comprehensive construction services since 1859.

Construction 馃嚠馃嚜 Dublin 2,593 1859
11
Marcus Evans Groupmarcusevans.com

A global leader in business intelligence, offering diverse portfolios including summits, conferences, professional training, and market intelligence to help clients achieve strategic goals

Events Services 馃嚠馃嚜 Dublin 2,543 1983
12
Origin Enterprises Plcoriginenterprises.com

Provides technically-led agricultural solutions promoting sustainable land use, empowering customers across multiple countries to maximize land potential.

Holding Companies 馃嚠馃嚜 Dublin 1,956 n/a
13
Oldcastlecrh.com

Leading provider of building materials solutions worldwide, offering materials, products, and services for infrastructure, commercial projects, and outdoor living

Wholesale Building Materials 馃嚠馃嚜 Dublin 1,768 n/a
14
Dole plcdoleplc.com

The company grows, sources, packs, markets, and distributes fresh produce globally, focusing on quality, sustainability, and healthy eating from farm to fork.

Food and Beverage Manufacturing 馃嚠馃嚜 Dublin 1,306 n/a
15
ABP Food Groupabpfoodgroup.com

Largest beef processor in Ireland and UK with renewable energy, pet food, and protein divisions employing over 14,000 people.

Food and Beverage Manufacturing 馃嚠馃嚜 Ardee 1,300 1954
16
Ivy Technologyivytech.com

Global provider of electronics repair and service for tech, med-tech, and telecom companies with innovative, efficient, and trustworthy solutions.

Computer Hardware Manufacturing 馃嚠馃嚜 Dublin 1,067 n/a
17
Translinklinktr.ee

The company provides integrated public transport services in Northern Ireland, coordinating bus and rail services to promote sustainable transportation options

Truck Transportation 馃嚠馃嚜 Belfast 1,044 1996
18
Keelingskeelings.com

An Irish family business in the fresh produce industry since 1926, offering growing, sourcing, sales, distribution, and ERP software solutions globally

Food and Beverage Services 馃嚠馃嚜 Dublin 953 1926
19
Uniphar Supply Chain & Retailuniphar.ie

A rapidly growing Irish organization specializing in healthcare, with divisions in wholesale and distribution, serving Irish pharmacies and various industries

Pharmaceutical Manufacturing 馃嚠馃嚜 Dublin 878 1994
20
DCC Technologydcctechnology.com

A leading technology distributor offering consumer, business, and enterprise products from top brands, backed by a global parent company operating in 23 countries

Technology, Information and Media 馃嚠馃嚜 Burnley 864 n/a
21
ICDS Groupicds.ie

Specializing in staffing solutions for Construction, Civil, Manufacturing, Engineering, Scientific, Medical, Technical, Food, IT, and Finance industries worldwide since 1976

Staffing and Recruiting 馃嚠馃嚜 Dublin 858 1976
22
Moog Controls Corporation (Philippine Branch)moog.com

A worldwide designer and integrator of precision motion control products and systems for various industries, with a strong focus on culture and integrity

Aviation and Aerospace Component Manufacturing 馃嚠馃嚜 Baguio City 779 1984
23
Musgrave Retail Partners Irelandmusgravegroup.com

Leading grocery retail and wholesale partner supporting independent stores with local products, innovative programs, and a focus on health and wellbeing

Retail 馃嚠馃嚜 Cork 743 n/a
24
Dairygold Co-Operative Society Ltddairygold.ie

Farmer owned cooperative processing large volumes of milk, operating internationally with significant turnover and extensive employee base.

Dairy Product Manufacturing 馃嚠馃嚜 Mitchelstown 703 1990

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25
Glen Dimplexglendimplex.com

Manufacturing heating, ventilation, flame, precision cooling, and consumer appliances with innovative solutions to improve everyday life and energy efficiency.

Appliances, Electrical, and Electronics Manufacturing 馃嚠馃嚜 Cloghran 664 n/a
26
Masterlinkmasterlink.ie

Leading Irish logistics service provider offering nationwide delivery, warehousing, order fulfillment, and reverse logistics with a fleet of over 120 vehicles and 350 employees

Transportation, Logistics, Supply Chain and Storage 馃嚠馃嚜 Cork 582 1992
27
Sherry FitzGeraldsherryfitz.ie

A leading property advisory firm in Ireland, offering a full range of services nationwide, backed by a team of talented professionals and trusted market insights

Real Estate 馃嚠馃嚜 Sandyford 534 n/a
28
Mergon Groupmergon.com

Manufacturer of high-quality plastic components for automotive, medical, and industrial products, serving global brands with innovative design and sustainable solutions

Plastics Manufacturing 馃嚠馃嚜 Castlepollard 533 1981
29
AXA Irelandaxa.ie

A leading insurance company in Ireland offering a wide range of insurance products to protect homes, cars, businesses, and farms Part of AXA Group

Insurance 馃嚠馃嚜 Dublin 489 n/a
30
Chadwicks Groupchadwicksgroup.ie

Leading builders' merchant in Ireland with over 50 stores and 200 years of expertise providing a wide range of construction materials

Wholesale Building Materials 馃嚠馃嚜 Clondalkin 462 1818
31
EPS Groupepswater.ie

An international water infrastructure specialist offering end-to-end services in water, wastewater, and clean technology sectors to various clients globally

Manufacturing 馃嚠馃嚜 Mallow 434 1968
32
Uniphar Medtechunipharmedtech.com

Leading medical device distributor offering best-in-class products and services across multiple specialties in public and private healthcare with a presence in 21 markets

Hospitals and Health Care 馃嚠馃嚜 Northside 433 2005
33
Glenveagh Properties plcglenveagh.ie

Leading Irish homebuilder focused on delivering sustainable, high-quality homes in diverse communities through innovation, integration, and a commitment to customer satisfaction

Construction 馃嚠馃嚜 Maynooth 420 2017
34
Viatel Technology Groupviatel.com

Delivers managed security, networking, cloud, and communication services, helping businesses optimize operations and achieve their potential, supported by certified experts.

IT Services and IT Consulting 馃嚠馃嚜 Dublin 409 n/a
35
Aryzaaryza.com

The company provides comprehensive solutions for debt management, insolvency, and loans, fostering strong relationships between businesses and consumers

IT Services and IT Consulting 馃嚠馃嚜 Ballycoolin 402 2002
36
Excel Recruitmentexcelrecruitment.com

Excel Recruitment provides talented workforce solutions across various industries, specializing in Retail, IT, Hospitality, Healthcare, and more, with a track record of industry recognition and awards

Staffing and Recruiting 馃嚠馃嚜 Dublin 391 2001
37
MTM Engineering Ltdmtm-engineering.com

Specializing in electrical and mechanical contracting services internationally, with a focus on main cable installation, termination, and post-weld heat treatment

Engineering Services 馃嚠馃嚜 Slane 389 1997
38
Grafton Group plcgraftonplc.com

An international distributor of building materials with leading positions in UK, Ireland, and the Netherlands, also manufacturing dry mortar and operating DIY retail stores

Wholesale Building Materials 馃嚠馃嚜 Sandyford 384 n/a
39
ATAatagroup.com

Design, manufacture, and distribution of high-performance cutting tools and material removal solutions for diverse global industries.

Industrial Machinery Manufacturing 馃嚠馃嚜 Cavan 382 1963
40
Trinity Biotechtrinitybiotech.com

Specializing in diagnostic test kits and equipment, we prioritize quality and efficacy to provide reliable diagnosis, aiming for an inclusive workplace with varied roles

Medical Equipment Manufacturing 馃嚠馃嚜 Bray 381 1992
41
Ei Electronicseielectronics.com

Manufacturing and exporting home life safety devices with integrated research, development, and marketing based in Ireland, serving global markets.

Appliances, Electrical, and Electronics Manufacturing 馃嚠馃嚜 Shannon 380 1988
42
GMC Utilities Groupgmcirl.com

The GMC Utilities Group offers a complete service and turnkey solutions in utility and civil engineering, handling projects in Ireland and the UK

Utilities 馃嚠馃嚜 Ballycoolin 348 n/a
43
Gillgill.ie

Leading Irish publisher and distributor, specializing in educational and general interest books Provides distribution services to over 50 publishers

Book and Periodical Publishing 馃嚠馃嚜 Dublin 331 1856
44
Dublin Aerospacedublinaerospace.com

A global leader in Aerospace MRO services specializing in APU, Base Maintenance, IDG, and Landing Gear repair & overhaul with multiple industry awards and approvals

Airlines and Aviation 馃嚠馃嚜 Dublin 331 2009
45
Anthony Nicholas Groupfraserhart.co.uk

A trusted group with two jewellery companies, known for exceptional customer service, high quality, and unique design, creating treasured moments for over 80 years

Retail Luxury Goods and Jewelry 馃嚠馃嚜 Dublin 329 1936
46
Kingsbridge Healthcare Groupkingsbridgeprivatehospital.com

A premier private healthcare group in Northern Ireland, dedicated to providing top-quality healthcare solutions emphasizing patient care and professional excellence

Hospitals and Health Care 馃嚠馃嚜 Belfast 325 2004
47
Abbey Groupabbeygroupdmc.com

A travel group operating in Dublin, Edinburgh, and London, specializing in selling Ireland and UK destinations to the global travel industry

Travel Arrangements 馃嚠馃嚜 Dublin 318 1978
48
Healthcare 21 Grouphealthcare21.eu

Specialist supplier of healthcare solutions, consumables, devices, and services across various market segments, focusing on optimizing clinical outcomes and patient care

Hospitals and Health Care 馃嚠馃嚜 Co. Cork 303 2003
49
Energia Groupenergiagroup.com

Integrated energy utility focusing on renewable technologies, flexible generation, and customer solutions, serving homes and businesses across Ireland.

Utilities 馃嚠馃嚜 Blanchardstown 278 2019

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How this list is built

Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Nov 12, 2026.

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