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Companies headquartered in Ireland

21 public companies are headquartered in Ireland, including 12 in the S&P 500 or Nasdaq-100. The biggest concentrations are in Dublin, Galway and Co. Dublin.

21 companies · 5 cities · 12 ★ index members

Dublin 16

Galway 2

Co. Dublin 1

Cork 1

Dundalk, County Louth 1

Other countries: China United Kingdom Singapore Bermuda Israel Canada Cayman Islands Hong Kong Switzerland Japan France Luxembourg Netherlands Germany Australia Belgium

Headquarters are each company's principal executive office as filed with the SEC (EDGAR business address), as of October 3, 2026. ★ marks S&P 500 and Nasdaq-100 members. All locations.