Scout Motor ServicesShamrock & RamblerShaw, BarnsleyShearingsSheffield United (SUT)Shoeburyness Motor ServicesSilcox with many additions 4.6.17Skill, NottinghamSmith, MarpleSMT/SOLSomerbusSouth MidlandSouth Wales (SWT)South Yorkshire MotorsSouthdownSouthend CorporationSouthern National (SNOC)Southern National 2Southern Vectis (SVectis)Southport CorporationStanderwick (Stndwk)Stevenson, SpathStratford Blue (SOAB)Sunderland District