Córas Iompair Éireann (C I É) is Ireland’s state-owned transport company providing land public transport within the Republic of Ireland. It runs the following services:

• Iarnród Éireann - Ireland's railway company, provides InterCity, Dart and suburban and Rail Freight services
  
  
• Bus Éireann is Ireland’s major bus company providing nationwide bus services outside of Dublin City
  
  
• Bus Atha Cliath - Dublin Bus provides city bus services in the Greater Dublin area
  
  
• C I É Tours is Ireland’s premier operator of coach tours and fly-drive vacations to Ireland and to other countries
  
  
• Group Property – manages CIÉ’s property portfolio
  
  
• CAN – C I É outdoor advertising division
  
  
• Heritage Project
  
  
• C I É Consult is the consultancy arm of C I É