O2 Ireland

O2 Ireland company information, Employees & Contact Information

Updated June 2026

Quick answer

O2 Ireland is a Telecommunications company and founded in 1997. Contact data was last refreshed in June 2026. Find O2 Ireland's verified employee emails, phone numbers, headquarters address, and key decision makers below.

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O2 Ireland is now trading as Three Ireland. In June 2013 Telefónica agreed to sell its 100% stake in Telefónica Ireland to Hutchison Whampoa, operators of Three. Please see: https://www.linkedin.com/company/hutchison-3g-ireland-ltd

Company Details

Founded
1997
Address
28–29 Sir John Rogerson's Quay, Dublin 2,ireland
Industry
Telecommunications
NAICS
Telecommunications
Other Telecommunications
Telecommunications Resellers
All Other Telecommunications
Website
http://www.three.ie
Keywords
ComRegia.
HQ
Dublin 2
Competitors
Tech Mahindra, Paddy Power, Vodafone, daa, Clinton Vauls Technology Group, Ciara Robinson, Axonify, Zendevs, ComRegia, Telefónica.
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