CRH plc is an international building materials group. The group was formed through a merger in 1970 of two leading Irish public companies, Cement Limited (established in 1936) and Roadstone Limited (1949). It is headquartered in Dublin.

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...

Google Ireland is the Europe, Middle East and Africa (EMEA) headquarters for Google and provides technical, sales and operations support to customers in over 50 countries.

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 ...

Eaton is a power management company with 2015 sales of $20.9 billion. Eaton 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...

The DCC group provides sales, marketing, distribution and business support services and operates across five divisions: Energy, SerCom (which encompasses IT and entertainment products) Healthcare, Environmental and Food and Beverage.

On March 17th, 2015, Actavis completed the acquisition of Allergan, creating a $23 billion diversified global pharmaceutical company known as Allergan, headquartered in Dublin. Allergan Pharmaceuticals Ireland, a subsidiary of Allergan Inc., is based in Westport, Co....

Ingersoll-Rand Irish Holdings operates as a subsidiary of Ingersoll-Rand Plc. The industrial techology firm makes climate control systems.

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...

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...

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 over 5,000 people as a result of a...

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...

Founded in 2004, Facebook is a social utility that connects people with friends and others who work, study and live around them. People use Facebook to stay connected with friends and family, to discover what’s going on in the world, and to share and express what matter...

Pfizer is a research-based pharmaceutical multinational. The company was one of the first pharmaceutical companies to locate in Ireland (1969). The Irish operations manufacture some of Pfizer’s best-selling and newest medicines including Viagra (urology), Sutent (oncolo...

Every year Ryanair carries over 113 million passengers connecting 200 destinations in 33 countries on a fleet of 350 Boeing 737 aircraft based at 84 different European airports. With a further 350 Boeing 737s on order, Ryanair plans to lower fares and grow traffic to ov...

Kerry Group today provides food, food ingredients and flavours to the Irish and UK markets. Since the commissioning of its first dairy and ingredients plant in Listowel, Co Kerry in 1972, the company has grown to achieve current annualised sales of approximately €5.8 bi...

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...

Founded in 1979 Boston Scientific is now one of the world’s largest medical device companies. Focusing on less invasive medicine, it operates within four primary business divisions: Cardiology, Rhythm and Vascular; Endoscopy; Urology & Women's Health, and Neuropathi...

Headquartered in Ireland, Perrigo Company plc is a global healthcare supplier that develops, manufactures and distributes over-the-counter (OTC) and generic prescription (Rx) pharmaceuticals, infant formulas, nutritional products, animal health, dietary supplements, ac...

MSD has operations in more than 140 countries around the world. In Ireland, MSD employs over 1,600 people across its sites in Carlow, Cork, Dublin, and Tipperary. Its extensive Irish operations, encompassing manufacturing, commercial, global financial services and marke...