# Top 30 multinational companies in Dublin
Tamtam tracks 287 multinational companies headquartered in Dublin. This list ranks the 30 largest by number of employees on LinkedIn, led by Accenture, Eaton and Smurfit Westrock. Their median headcount is 7,123. Half of them were founded in 1969 or later.
These multinational companies in Dublin are generally large firms, with a strong presence in professional services, manufacturing, and pharmaceuticals. Accenture provides professional services to businesses and governments globally, while Eaton focuses on intelligent power management. Smurfit Kappa is a global provider of sustainable paper-based packaging, and Primark is an international fashion retailer. ICON plc specializes in accelerating the development of drugs and devices.
The data shows a concentration of headquarters in Dublin for these multinational entities. The sectors represented are diverse, ranging from business consulting and pharmaceutical manufacturing to retail and higher education, indicating a varied economic landscape for large international operations in the city.
๐ฎ๐ช Dublin ยท 30 companies ยท Updated Nov 11, 2026
| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [Accenture](https://www.tamtam.ai/c/accenture) (accenture.com)
It provides professional services to businesses and governments, focusing on digital transformation, operational optimization, and enhancing citizen services globally. | Business Consulting and Services | ๐ฎ๐ช Dublin | 687,682 | |
| 2 | [Eaton](https://www.tamtam.ai/c/eaton) (eaton.com)
Intelligent power management provider working towards a sustainable future by helping customers manage power, transition to renewable energy, and solve power management challenges globally | Appliances, Electrical, and Electronics Manufacturing | ๐ฎ๐ช Dublin | 51,011 | |
| 3 | [Smurfit Westrock](https://www.tamtam.ai/c/smurfit-westrock) (smurfitwestrock.com)
Global provider of innovative paper-based packaging solutions with extensive operations, mills, and a large workforce across multiple countries. | Packaging and Containers Manufacturing | ๐ฎ๐ช Dublin | 50,141 | |
| 4 | [Smurfit Kappa](https://www.tamtam.ai/c/smurfit-kappa) (smurfitwestrock.com)
A global provider of sustainable paper-based packaging solutions, offering innovative products and expertise to drive success for customers worldwide | Packaging and Containers Manufacturing | ๐ฎ๐ช Dublin | 48,000 | |
| 5 | [Primark](https://www.tamtam.ai/c/primark) (primark.com)
International fashion retailer, over 470 stores, offering affordable fashion and everyday essentials at unbeatable prices for everyone. | Retail | ๐ฎ๐ช Dublin | 45,876 | 1969 |
| 6 | [ICON plc](https://www.tamtam.ai/c/icon-plc) (iconplc.com)
A global company founded in Ireland in 1990, specializing in accelerating the development of drugs and devices to save lives and improve quality of life | Biotechnology Research | ๐ฎ๐ช Dublin | 35,001 | |
| 7 | [Weatherford](https://www.tamtam.ai/c/weatherford) (weatherford.com)
A global energy services company with 17,000 team members in 75 countries, providing solutions for the challenges of the energy industry | Oil and Gas | ๐ฎ๐ช Dublin | 29,301 | 1987 |
| 8 | [Keywords Studios](https://www.tamtam.ai/c/keywords-studios) (keywordsstudios.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 | ๐ฎ๐ช Dublin | 11,828 | 1998 |
| 9 | [Allergan](https://www.tamtam.ai/c/allergan) (abbvie.com)
The company discovers and delivers innovative medicines in various therapeutic areas including immunology, oncology, neuroscience, eye care, and more | Pharmaceutical Manufacturing | ๐ฎ๐ช Dublin | 9,833 | |
| 10 | [University College Dublin](https://www.tamtam.ai/c/university-college-dublin) (ucd.ie)
Research-intensive university offering undergraduate, masters, PhD education, fostering innovation, global engagement, and diverse academic disciplines across multiple campuses. | Higher Education | ๐ฎ๐ช Dublin | 8,585 | 1854 |
| 11 | [Flutter Entertainment](https://www.tamtam.ai/c/flutter-entertainment) (flutter.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 | ๐ฎ๐ช Dublin | 7,681 | |
| 12 | [ICON Strategic Solutions](https://www.tamtam.ai/c/icon-strategic-solutions) (iconplc.com)
Global leader in Functional Service Provision services, offering cost-saving FSP models and clinical expertise to improve business performance Providing industry insights and job opportunities | Pharmaceutical Manufacturing | ๐ฎ๐ช Dublin | 7,496 | |
| 13 | [Trinity College Dublin](https://www.tamtam.ai/c/trinity-college-dublin) (tcd.ie)
Leading Irish university offering world-class education and research, recognized globally for academic excellence and high international rankings. | Higher Education | ๐ฎ๐ช Dublin | 7,268 | 1592 |
| 14 | [CRH](https://www.tamtam.ai/c/crh) (crh.com)
Global leader in building materials solutions, with market leadership in North America and Europe, offering materials for infrastructure projects and sustainable construction | Wholesale Building Materials | ๐ฎ๐ช Dublin | 7,256 | |
| 15 | [Allegion](https://www.tamtam.ai/c/allegion-dublin) (allegion.com)
Global leader in seamless access solutions for homes, businesses, schools, and institutions, specializing in securing people and assets around the door | Appliances, Electrical, and Electronics Manufacturing | ๐ฎ๐ช Dublin | 7,123 | |
| 16 | [Perrigo Company plc](https://www.tamtam.ai/c/perrigo-company-plc) (perrigo.com)
European Consumer Self-Care market top player, U.S. store brand over-the-counter and infant formula provider, offering trusted health and wellness solutions. | Manufacturing | ๐ฎ๐ช Dublin | 5,088 | |
| 17 | [ESB](https://www.tamtam.ai/c/esb) (esb.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 | ๐ฎ๐ช Dublin | 4,937 | 1927 |
| 18 | [Cpl](https://www.tamtam.ai/c/cpl) (cpl.com)
Global provider of talent solutions across sectors, with 14,000 employees in 14 countries, specializing in matching the right talent to organizations | Staffing and Recruiting | ๐ฎ๐ช Dublin | 4,748 | |
| 19 | [PM Group](https://www.tamtam.ai/c/pm-group) (pmgroup-global.com)
Specializes in designing, constructing, and commissioning high-tech facilities for pharma, food, data centers, medical technology, manufacturing, and energy sectors globally. | Business Consulting and Services | ๐ฎ๐ช Dublin | 4,477 | 1973 |
| 20 | [Flutter International](https://www.tamtam.ai/c/flutter-international) (careers.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 | ๐ฎ๐ช Dublin | 4,076 | |
| 21 | [Version 1](https://www.tamtam.ai/c/version-1) (version1.com)
IT services and solutions provider trusted by global brands, offering independent advice to navigate the evolving IT landscape and drive customer success | IT Services and IT Consulting | ๐ฎ๐ช Dublin | 3,944 | 1996 |
| 22 | [Aer Lingus](https://www.tamtam.ai/c/aer-lingus) (aerlingus.com)
National airline of Ireland operating modern fleet, connecting UK, Europe, North America via Dublin and Shannon airports with US Pre-Clearance. | Airlines and Aviation | ๐ฎ๐ช Dublin | 3,884 | 1936 |
| 23 | [DCC plc](https://www.tamtam.ai/c/dcc-plc) (dccenergy.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 | ๐ฎ๐ช Dublin | 3,820 | 1976 |
| 24 | [Jazz Pharmaceuticals](https://www.tamtam.ai/c/jazz-pharmaceuticals) (jazzpharma.com)
Global biopharmaceutical company focused on developing innovative medicines for serious diseases with limited treatment options to improve patient lives. | Pharmaceutical Manufacturing | ๐ฎ๐ช Dublin | 3,643 | 2003 |
| 25 | [Mallinckrodt Pharmaceuticals](https://www.tamtam.ai/c/mallinckrodt-pharmaceuticals) (mnk.com)
Specializing in specialty pharmaceuticals, we develop, manufacture, and distribute innovative treatments for underserved patient populations across various medical fields | Pharmaceutical Manufacturing | ๐ฎ๐ช Dublin | 3,400 | 1867 |
| 26 | [Concern Worldwide](https://www.tamtam.ai/c/concern-worldwide) (concern.net)
International humanitarian organization working with poorest communities to improve lives and influence policies reducing extreme poverty globally. | Non-profit Organizations | ๐ฎ๐ช Dublin | 3,327 | 1968 |
| 27 | [Jones Engineering](https://www.tamtam.ai/c/jones-engineering) (joneseng.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 | ๐ฎ๐ช Dublin | 3,019 | 1890 |
| 28 | [KPMG Ireland](https://www.tamtam.ai/c/kpmg-ireland) (kpmg.ie)
A leading provider of audit, tax, and advisory services for domestic and international clients across all sectors, specializing in driving value and navigating change | Accounting | ๐ฎ๐ช Dublin | 2,978 | |
| 29 | [Zurich Insurance plc](https://www.tamtam.ai/c/zurich-insurance-plc) (zurich.com)
Insurance provider with operations in Ireland and nine other European countries, part of a global network with over 55,000 employees worldwide | Insurance | ๐ฎ๐ช Dublin | 2,910 | 1872 |
| 30 | [Mercury](https://www.tamtam.ai/c/mercury-dublin) (mercuryeng.com)
Design and manage complex engineering and construction projects for leading corporations, delivering innovative solutions that connect communities and businesses. | Construction | ๐ฎ๐ช Dublin | 2,864 | 1972 |
## 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 11, 2026.
## More company lists in Dublin
- [The largest companies in Dublin](https://www.tamtam.ai/l/largest-companies-dublin) (867)
- [SaaS companies in Dublin](https://www.tamtam.ai/l/saas-companies-dublin) (119)
- [Software Development companies in Dublin](https://www.tamtam.ai/l/software-development-companies-dublin) (96)
- [Retail chains in Dublin](https://www.tamtam.ai/l/retail-chains-dublin) (86)
- [Financial services firms in Dublin](https://www.tamtam.ai/l/financial-services-firms-dublin) (85)
- [Financial Services companies in Dublin](https://www.tamtam.ai/l/financial-services-companies-dublin) (81)
- [Professional services firms in Dublin](https://www.tamtam.ai/l/professional-services-firms-dublin) (75)
- [Critical infrastructure operators in Dublin](https://www.tamtam.ai/l/critical-infrastructure-operators-dublin) (66)
- [Companies with a mobile app in Dublin](https://www.tamtam.ai/l/companies-with-mobile-app-dublin) (64)
- [IT Services and IT Consulting companies in Dublin](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-dublin) (47)
- [IT services companies in Dublin](https://www.tamtam.ai/l/it-services-companies-dublin) (44)
- [Companies with in-house R&D in Dublin](https://www.tamtam.ai/l/r-and-d-companies-dublin) (43)
- [Consulting firms in Dublin](https://www.tamtam.ai/l/consulting-firms-dublin) (42)
- [Public sector organisations in Dublin](https://www.tamtam.ai/l/public-sector-organisations-dublin) (41)
- [Retail companies in Dublin](https://www.tamtam.ai/l/retail-companies-dublin) (39)
- [Subscription businesses in Dublin](https://www.tamtam.ai/l/subscription-businesses-dublin) (35)
- [Education providers in Dublin](https://www.tamtam.ai/l/education-companies-dublin) (33)
- [AI companies in Dublin](https://www.tamtam.ai/l/ai-companies-dublin) (31)
- [Healthcare providers in Dublin](https://www.tamtam.ai/l/healthcare-providers-dublin) (31)
- [Government Administration companies in Dublin](https://www.tamtam.ai/l/government-administration-companies-dublin) (30)
- [Construction companies in Dublin](https://www.tamtam.ai/l/construction-companies-dublin) (27)
- [Hospitals and Health Care companies in Dublin](https://www.tamtam.ai/l/hospitals-and-health-care-companies-dublin) (27)
- [Publicly traded companies in Dublin](https://www.tamtam.ai/l/publicly-traded-companies-dublin) (27)
- [Insurance companies in Dublin](https://www.tamtam.ai/l/insurance-companies-dublin) (25)
## The same list elsewhere in Ireland
- [Multinational companies in Ireland](https://www.tamtam.ai/l/multinational-companies-ireland) (564)
---
Source: https://www.tamtam.ai/l/multinational-companies-dublin