The incumbent on the business is the Ireland-based agency AV Browne GCAS. Agency Insight is handling the pitch.
The company, which runs ferries between England and Ireland, and England and The Netherlands, as well as around Scandinavia and the Baltics, is looking for an agency that has capabilities in Belfast, Dublin and Manchester.
In 2005, the company posted revenues of £650 million with profits of £19 million, a rise of £10 million from 2004. In the same year, more than 16 million people travelled with the company and it ferried more than three million cars.
The business is a wholly owned subsidiary of Stena AB, which is owned by the Dutch family company Olsson.
It was founded in 1962, when Sten Allan Olsson took over the ferry company Skagen-linjen AB. The company also owned 40 per cent of P&O Stena Line until 2002, when it sold its entire stake to P&O.
Stena Line and AV Browne were unavailable for comment at the time of going to press.