 The company fleet name was lost when it was acquired by the Stagecoach Group in 1989 but buses operated under that legal name until 2015 when the operating licence was transferred to another company within the Stagecoach Group and 1915 company became dormant but still owned by the Stagecoach Group.Southdown Motor Services can trace its history back to a pair of steam buses which operated between Pulborough and Worthing.However the company itself was formed in 1915, abandoning plans to call itself South Coast Motor Services (a similar name had been registered by a Folkestone operator).