ITV was for four decades a network of separate companies that provided regional television services and also shared programmes among themselves to be shown on the entire network. Each franchise was originally owned by a different company. After several mergers, the fifteen regional franchises are now held by two companies: ITV plc, which runs the ITV1 channel and the UTV channel – now branded as ITV1, and STV Group, which runs the STV channel.
The ITV network is a separate entity from ITV plc, the company that resulted from the merger of Granada plc and Carlton Communications in 2004. ITV plc holds the Channel 3 broadcasting licences for every region except for central and northern Scotland, which are held by STV Group.