Going up the front row I can see, in order, Hillman Husky, Ford Zephyr, Morris J2 minibus, L/R 2a, Austin K9 water tank, Bedford RL recovery, etc.
2nd row, Bedford CA, L/R 2a ambulance, Bedford J types, truck and ambulances, Bedford TK, Bedford TJ, AEC Mammoth Major, Bedford SB3 coach, AEC Militant Mk1, etc.
3rd row, Cuthbertson, dumper?, MF tractor, MF loader and backacter, next unknown, Allis Chalmers 645, Marshall Gainsborough, Michigan 75.............................
someone else can continue :-D