Many companies operate public transport services in Dublin, most of which are state-owned or semi-state-owned.

Rail

Light rail

Bus

Historically, bus services in Dublin were operated mainly by the Dublin United Transport Company, which was incorporated into CIÉ in 1945. Today, two subsidiary companies of state-owned Córas Iompair Éireann operate most of the bus services in and around Dublin but many other private companies also provide services. Most routes are awarded to the state-owned firms by non-tendered direct award (with the exception of Dublin Bus Airlink and Bus Éireann Expressway services, which are entirely commercial); but recently a portion of both firms routes were offered for public tender. Neither firm retained these routes, with Go-Ahead Ireland winning both contracts Some additional routes are tendered where a need is identified by the National Transport Authority. These are public service obligation routes and occasionally replace sections of withdrawn or altered Bus Éireann Expressway services.

City and local services

State-owned

State-tendered

Private

Longer distance and express services

State-owned

State-tendered

Private