Complex sentence: The subsidised Northern Isles services which were run by P&O Scottish Ferries were put out to tender in 1999, and a joint venture between Caledonian MacBrayne and the Royal Bank of Scotland named "Northlink Orkney and Shetland Ferries" won the service from 2002.
Split into simpler sentences: The subsidised Northern Isles ferry services, previously run by P&O Scottish Ferries were put out to tender in 1999. A joint venture between Caledonian MacBrayne and the Royal Bank of Scotland named "Northlink Orkney and Shetland Ferries" won the service from 2002.