BrightBus

MASS Engineering and BrightBus (officially MAS Special Engineering) is a bus operator currently based at North Anston between Sheffield and Worksop.

The company runs a large fleet of mainly double deckers including ex-London Leyland Titans and ex-Hong Kong tri-axle buses, Optare Spectras and super low floor Dennis Tridents. They are one of the largest dedicated school bus operators in the UK and have been at the forefront of several significant initiatives to improve behaviour on school services. They carry around five thousand school children twice a day on a mixture of contracted and commercial work.

The Hong Kong vehicles are unusual in that they are officially the largest seated 'rigid' (i.e. non-bendi) buses in the Western World carrying up to 126 seats on the largest 12m Dennis Dragons. The company imported the vehicles during 2003 and went through a lengthy process involving in-house tilt test work to gain Certification for three types of vehicle: 12 metre long Leyland Olympian/Alexander and both 12m and 11m Dennis Dragon/Duple MetSec.

They recently imported what is believed to be the only example of a Crown Coach American school bus in the UK that is converted to provide PHSE lessons in schools throughout South Yorkshire.

They are the first Operator to 'go live' on the Yorkshire-based 'YorCard' project; an ITSO Smart Card ticket system.

They previously operated service bus routes, mainly in Doncaster, under the Mass and previously Leon brands. However they received much criticism about standards of vehicles, drivers attitude/professionalism and reliability of there services (cancellations and early/late running were common). These services were finally withdrawn in 2007.