# The 25 largest corporate groups and holding companies in Dublin

Tamtam tracks 25 corporate groups and holding companies headquartered in Dublin. This list ranks all of them by number of employees on LinkedIn, led by Keywords Studios, Flutter Entertainment and ESB. Their median headcount is 1,067. Half of them were founded in 1976 or later.

This selection of corporate groups and holding companies in Dublin includes large firms in diverse sectors. Keywords Studios is a creative services provider for the video games industry. Flutter Entertainment and Flutter International are global providers of sports betting and gaming. ESB focuses on providing electricity supplies, and DCC plc is a global group in energy, healthcare, and technology.

The companies here show a mix of industries, from utilities and construction to entertainment and food. For example, Dole plc distributes fresh produce globally, and Jones Engineering is a multi-disciplined engineering contracting company. The list also includes firms like An Post, which provides postal and financial services, and Marcus Evans Group, a business intelligence provider. All these companies are headquartered in Dublin.

🇮🇪 Dublin · 25 companies · Updated Nov 12, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [Keywords Studios](https://www.tamtam.ai/c/keywords-studios) (keywordsstudios.com)<br>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 | 🇮🇪 Dublin | 11,828 | 1998 |
| 2 | [Flutter Entertainment](https://www.tamtam.ai/c/flutter-entertainment) (flutter.com)<br>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 | 🇮🇪 Dublin | 7,681 |  |
| 3 | [ESB](https://www.tamtam.ai/c/esb) (esb.ie)<br>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 | 🇮🇪 Dublin | 4,937 | 1927 |
| 4 | [Flutter International](https://www.tamtam.ai/c/flutter-international) (careers.flutterinternational.com)<br>Global sports betting, gaming, and entertainment provider with innovative brands focused on championing play, empowerment, and teamwork for millions of customers worldwide | Entertainment Providers | 🇮🇪 Dublin | 4,076 |  |
| 5 | [DCC plc](https://www.tamtam.ai/c/dcc-plc) (dccenergy.com)<br>A global group providing solutions in energy, healthcare, and technology sectors through diverse businesses across 22 countries, driving long-term value creation | Executive Offices | 🇮🇪 Dublin | 3,820 | 1976 |
| 6 | [An Post](https://www.tamtam.ai/c/an-post) (anpost.com)<br>Provides postal, communication, retail, and financial services across Ireland with a large national network and over 10,000 employees. | Utilities | 🇮🇪 Dublin | 3,117 |  |
| 7 | [Jones Engineering](https://www.tamtam.ai/c/jones-engineering) (joneseng.com)<br>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 | 🇮🇪 Dublin | 3,019 | 1890 |
| 8 | [John Sisk & Son Ltd](https://www.tamtam.ai/c/john-sisk-and-son-ltd) (sisk.com)<br>Innovative engineering and construction company with extensive operations across Ireland, UK, and Europe, providing comprehensive construction services since 1859. | Construction | 🇮🇪 Dublin | 2,593 | 1859 |
| 9 | [Marcus Evans Group](https://www.tamtam.ai/c/marcus-evans-group) (marcusevans.com)<br>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 | 🇮🇪 Dublin | 2,543 | 1983 |
| 10 | [Origin Enterprises Plc](https://www.tamtam.ai/c/origin-enterprises-plc) (originenterprises.com)<br>Provides technically-led agricultural solutions promoting sustainable land use, empowering customers across multiple countries to maximize land potential. | Holding Companies | 🇮🇪 Dublin | 1,956 |  |
| 11 | [Oldcastle](https://www.tamtam.ai/c/oldcastle) (crh.com)<br>Leading provider of building materials solutions worldwide, offering materials, products, and services for infrastructure, commercial projects, and outdoor living | Wholesale Building Materials | 🇮🇪 Dublin | 1,768 |  |
| 12 | [Dole plc](https://www.tamtam.ai/c/dole-plc) (doleplc.com)<br>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 | 🇮🇪 Dublin | 1,306 |  |
| 13 | [Ivy Technology](https://www.tamtam.ai/c/ivy-technology) (ivytech.com)<br>Global provider of electronics repair and service for tech, med-tech, and telecom companies with innovative, efficient, and trustworthy solutions. | Computer Hardware Manufacturing | 🇮🇪 Dublin | 1,067 |  |
| 14 | [Keelings](https://www.tamtam.ai/c/keelings) (keelings.com)<br>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 | 🇮🇪 Dublin | 953 | 1926 |
| 15 | [Uniphar Supply Chain & Retail](https://www.tamtam.ai/c/uniphar-supply-chain-and-retail) (uniphar.ie)<br>A rapidly growing Irish organization specializing in healthcare, with divisions in wholesale and distribution, serving Irish pharmacies and various industries | Pharmaceutical Manufacturing | 🇮🇪 Dublin | 878 | 1994 |
| 16 | [ICDS Group](https://www.tamtam.ai/c/icds-group) (icds.ie)<br>Specializing in staffing solutions for Construction, Civil, Manufacturing, Engineering, Scientific, Medical, Technical, Food, IT, and Finance industries worldwide since 1976 | Staffing and Recruiting | 🇮🇪 Dublin | 858 | 1976 |
| 17 | [AXA Ireland](https://www.tamtam.ai/c/axa-ireland) (axa.ie)<br>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 | 🇮🇪 Dublin | 489 |  |
| 18 | [Viatel Technology Group](https://www.tamtam.ai/c/viatel-technology-group) (viatel.com)<br>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 | 🇮🇪 Dublin | 409 |  |
| 19 | [Excel Recruitment](https://www.tamtam.ai/c/excel-recruitment) (excelrecruitment.com)<br>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 | 🇮🇪 Dublin | 391 | 2001 |
| 20 | [Gill](https://www.tamtam.ai/c/gill) (gill.ie)<br>Leading Irish publisher and distributor, specializing in educational and general interest books Provides distribution services to over 50 publishers | Book and Periodical Publishing | 🇮🇪 Dublin | 331 | 1856 |
| 21 | [Dublin Aerospace](https://www.tamtam.ai/c/dublin-aerospace) (dublinaerospace.com)<br>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 | 🇮🇪 Dublin | 331 | 2009 |
| 22 | [Anthony Nicholas Group](https://www.tamtam.ai/c/anthony-nicholas-group) (fraserhart.co.uk)<br>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 | 🇮🇪 Dublin | 329 | 1936 |
| 23 | [Abbey Group](https://www.tamtam.ai/c/abbey-group) (abbeygroupdmc.com)<br>A travel group operating in Dublin, Edinburgh, and London, specializing in selling Ireland and UK destinations to the global travel industry | Travel Arrangements | 🇮🇪 Dublin | 318 | 1978 |
| 24 | [JOE Media Group (Ireland)](https://www.tamtam.ai/c/joe-media-group-ireland)<br>The company pioneers producing and publishing influential content on social media, connecting brands with engaged communities through authentic, insight-driven solutions | Online Audio and Video Media | 🇮🇪 Dublin | 183 |  |
| 25 | [LeBruin](https://www.tamtam.ai/c/lebruin) (lebruinprivate.com)<br>Leading corporate finance firm providing independent services, securing funding for various projects, and offering advisory services to clients and funders since 2008. | Financial Services | 🇮🇪 Dublin | 8 | 2008 |

## 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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Source: https://www.tamtam.ai/l/holding-companies-dublin