In 1957, Monument Securities bought a 51% stake in Townsend Car Ferries Ltd and in 1959 acquired the rest in a full takeover.
In 1971 the Atlantic Steam Navigation Company Ltd (trading as Transport Ferry Service) was acquired from the National Freight Corporation.
On 6 March 1987, the Townsend Thoresen branded roll on/roll off car ferry Herald of Free Enterprise capsized just outside Zeebrugge's harbour about 25 minutes after departure.
A subsequent inquiry determined that the ship's bow doors had been left open allowing water to get onto the car deck.
By 1978, European Ferries had purpose built a passenger and freight terminal from which its subsidiary Townsend Thoresen could operate.
European Ferries maintained a portfolio of around 15 to 20 properties in the UK and was also involved in a 1,100-acre (4.5 km2) leisure development in Southern Spain and other properties in Hamburg and Frankfurt[1] In 1982, three vessels operated by European Ferries were requisitioned by the Ministry of Defence to assist with the Falklands Campaign.
[12] Prior to leaving for this charter the Viking Viscount was fitted with an extra ramp to enable unloading of vehicles to Mexeflotes.