Telecoms/Communications
See also: Communications in Ireland- An Post - (state-sponsored body)
- Chorus Communications (Subsidiary of Liberty Global Europe, ultimately owned by Liberty Media, quoted on NASDAQ)
- eircom
- BT Ireland - (Subsidiary of BT; formerly "Esat BT", quoted on LSE)
- Indigo Internet (Subsidiary of eircom)
- Ireland On-Line (Subsidiary of BT)
- O2 Ireland - (Subsidiary of Telefónica, quoted on Bolsa de Madrid; formerly ESAT Digifone)
- Magnet Entertainment
- Meteor (mobile network) (Subsidiary of eircom)
- NTL Ireland (subsidiary of Liberty Global Europe)
- 3 Ireland - (Subsidiary of Hutchinson Whampoa, quoted on HKSE)
- Smart Telecom - Quoted on AIM
- Vodafone Ireland - (Subsidiary of Vodafone; formerly Eircell)
- Digiweb
- Ericsson - located in, Clonskeagh Dublin.
Read more about this topic: List Of Companies Of Ireland