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. Microsoft

Microsoft Ireland Operations Ltd is a subsidiary of the software giant Microsoft which sells, distributes and markets software globally from Dublin. Microsoft, the world’s biggest software company, established an Irish manufacturing facility in 1985 and now employs ...

3. Meta Ireland

Founded in 2004, Meta (Facebook) is a social utility that connects people with friends and others who work, study and live around them.

4. SAP Solutions

The business software supplier has offices in over 120 countries, over 55,000 employees, and revenues in excess of €12billion. It employs over 1,200 people across three sites in Dublin and Galway. The Dublin organisation focuses on the provision of Global Support, R...

5. Eircom

Eir (previously known as eircom) is the principal provider of fixed-line telecommunications services in Ireland with approximately 2.6 million fixed-line telephone access channels in service. The company's mobile division includes Meteor and emobile. In March 2016, Eir...

6. 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...

7. Kingston

Kingston Technology International Ltd is a manufacturer of memory products such as USB drives. It markets over 2000 memory products and supports more than 6000 systems. It is a privately owned company with headquarters based in Fountain Valley, California and with s...

8. Oracle

The principal activity of Oracle EMEA Ltd is the manufacture and sale of computer software in the European market, together with the provision of associated translation, finance and marketing services. Oracle Corporation, incorporated in 2005, is an enterprise softw...

9. Linkedin

Founded in 2003, LinkedIn is the business-oriented social networking site, which connects the world’s professionals and strengthens their network. LinkedIn has had an office in Dublin for five years. Linked in has more than 400 million members in over 200 countries and...

10. Cadence

Cadence's main activity is the manufacture and distribution of software tools in European and Asian markets. It employs 45 people and is based in East Wall, Dublin. Its ultimate US parent company Cadence Design Systems Inc. Products are distributed in Europe th...

11. Sandisk

Sandisk provides various flash memory storage, the data storage technology included in memory sticks, smartphones, tablets and mp3 players. The company claims that approximately 250,000 retail outlets offer SanDisk products to consumers globally and ships more than two ...

12. BMC

BMC Software Europe is part of BMC. Headquartered in Houston, Texas, BMC develops, markets and sells software used for multiple functions, including IT service management, data center automation, performance management, and cloud computing management. The company...

13. Bentley Software

Bentley provides architects, engineers, geospatial professionals, constructors, and owner-operators with comprehensive software solutions for sustaining infrastructure.

14. Honeywell Process Solutions

Honeywell announced in February 2014 it would close its Waterford plant later that year, which would result in the loss of 27 jobs. Previously known as Honeywell Measurex, the company is engaged in the manufacture, sale and servicing of computer integrated process c...

15. ABB Ltd

ABB provides power and automation technologies which enable utility and industry customers to improve their performance while lowering environmental impact. In Ireland, ABB operates in six locations around the country employing over 150 people. From its head office o...

16. Maxim Integrated Products

Maxim Integrated Products makes integrated analog and mixed-signal semiconductors. The company supplied a broad range of linear and mixed signal integrated products, commonly referred to as analog circuits. In May 2010, the company opened its offices in Clonskeagh, D...

17. BT

BT is Ireland’s second largest fixed line communications and IT services company whose business in the State consists of two main parts, wholesaling services to other communications companies and retailing to major businesses and government. It wholesales services t...

18. J2 Global

J2 Global offers cloud-based unified-messaging and communications services to individuals and companies throughout the world. Such services include voicemail solutions, web-initiated conference calling, storage messaging services, online backup and virtual office sol...

19. NCR

NCR Corporation is a global technology company with self-service solutions for ATM machines and software, POS and Retail systems and airline check-in systems. NCR Global Solutions is wholly owned by the NCR Corporation and supports the management, development, and g...

20. 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...