Oldest Bus Company

[Western SMT]

Looks like this could be the oldest bus/coach company unless someone knows different.

http://www.chamberscoaches.co.uk/html/company_profile.html

[billh35]

Having been founded in June 1853 surely the Londonderry & Lough Swilly Railway Company which these days is a bus company (since 1925 actually) surely must be the oldest?