1. Apple Ireland

Apple designs and creates iPods and iTunes, Mac laptops and desktop computers, the OS X operating system, and the iPhone. The company first established operations in Ireland in 1980. The company is based in Cork and currently employs about 6,000 people . CEO of Apple ...

2. Medtronic plc

The medical device company Medtronic-Covidien became the largest Ireland-based company when it began trading on the New York Stock Exchange in 2015. Following Medtronic Inc’s $49.9 billion acquisition of Dublin-domiciled surgical supplies group Covidien, the Minneapol...

3. Eaton Corp

Eaton is a power management company that provides energy-efficient solutions that help its customers effectively manage electrical, hydraulic and mechanical power more efficiently, safely and sustainably. Eaton has approximately 97,000 employees worldwide and sells prod...

4. Dell Ireland

Since 1984, Dell has been an end-to-end computing solutions company. With more than 100,000 team members across the globe, Dell serves customers ranging from the world's largest businesses and public-sector organisations, to small and medium businesses, and individual c...

5. Trane Technologies

Formerly Ingersoll-Rand, Trane Technologies was formed in early 2020 when part of the business separated and combined with Gardner Denver (which now trades as Ingersoll Rand Inc). Trane is listed on the NYSE. The industrial techology firm makes climate control system...

6. MSD

MSD Ireland is one of the country’s leading healthcare companies, having first established here over 50 years ago. MSD, known as Merck & Co. Inc., Kenilworth, NJ, USA in the US and Canada, has operations in more than 140 countries and employs over 2,800 people in Irelan...

7. Smurfit Kappa

Smurfit Kappa is one of the leading producers of paper-based packaging in the world. Its products include containerboard, solid board, corrugated and solid board packaging, graphic board and sack paper. The group's headquarters are in Clonskeagh in Dublin 4 and i...

8. Ardagh Glass Sales

Ardagh Glass Sales is the Irish-based sales company of the Ardagh Group, which operates 100 metal glass and technology facilities across 25 countries employing 18,000 people. It has a number of finance companies based in Ireland as well as Ardagh Glass Sales. The A...

9. Kellogg Ireland

The European headquarters of breakfast cereal manufacturer, Kellogg's, is based in Dublin. The Swords office undertakes finance, supply chain, nutrition, sales, marketing and business development for Kellogg's European business. It employs more than 200 people.

10. Sisk Group

SISK Group is a fith generation family business primarily known for the construction division John Sisk and Son which operates in Ireland, the UK, Poland and the Middle East. It has grown from a small local builder founded in Cork more than 150 years ago to an intern...

11. Glen Dimplex

Glen Dimplex is the world's largest manufacturer of electrical heating, and also holds significant global market positions in domestic appliances, cooling, ventilation, and renewable energy solutions. Glen Dimplex Ireland is responsible for the design, manufacture and i...

12. Greencore

Greencore Group is an international manufacturer of convenience foods. The convenience foods division provides a wide range of chilled, frozen and ambient foods to major retail, manufacturing and foodservice customers in the UK and Ireland, as well as many in Contin...

13. Sandvik

Sandvik Mining & Construction Logistics is a high-technology, Swedish engineering group. It has representation in more than 130 countries. The company does business in three main areas - it manufactures tools for metal cutting in cemented carbide and high-speed stee...

14. PCH International

PCH International (Amekab Ltd) provides customised supply chain management solutions for consumer products with a focus on consumer electronic brands. It was founded in 1996 and has its headquarters in Cork. Operational headquarters are in Shenzhen, China. It cov...

15. Doosan Bobcat

Doosan Bobcat EMEA is the Czech-based subsidiary of the Doosan Infrastructure group which is headquarted in Seoul, Korea. The group produces construction equipment which it ships to customers around the world. It has production facilities in Swords, Co Dublin.

16. Bristol-Myers Squibb

Bristol Myers Squibb is a leading global biopharma company focused on discovering, developing and delivering innovative medicines for patients with serious diseases in areas including oncology, haematology, immunology, cardiovascular and neuroscience. Our employees work...

17. JTI Ireland

JTI Ireland is part of Japan Tobacco International (JTI), the international tobacco business of Japan Tobacco and the world's third largest industry player. Its history in Ireland dates back to 1857, when Tom Gallaher set up an Irish roll tobacco company in Derry. Forty...

18. Saint-Gobain Construction Products

Saint-Gobain Construction Products manufactures and supplies building materials. Formerly known as Gypsum it has operated in Ireland since 1936. In 2005, it became part of the Saint-Gobain group.

19. Teva Pharmaceuticals

Teva Pharmaeuticals Ireland, formerly known as Ivax Pharmaceuticals, is one of Ireland’s longest established and leading pharmaceutical companies and is part of Teva Pharmaceutical Industries Ltd, one of the top 20 pharmaceutical companies worldwide. The firm's commerc...

20. Nypro

Nypro Ltd specialises in precision plastics injection moulding. It employs 255 people at its Bray, Co Wicklow base. It is owned by US company Nypro.