|
| 125 cc
| 1956, 1959
|-
!rowspan=2| 24
|rowspan=2| {{flagicon|UK}} [[Norton Motorcycle Company|Norton]]
| 500 cc
| 1921, 1924, 1925, 1927, 1931, 1932, 1933, 1934, 1935, 1936, 1937, 1947, 1948, 1951
|-
| 350 cc
| 1931, 1932, 1933, 1934, 1935, 1937, 1938, 1947, 1951, 1952
|-
!rowspan=4| 16
| 1962, 1963, 1965, 1967, 1968, 1971
|-
!rowspan=24| 106
|rowspan=2| {{flagicon|GER|Nazi}} [[DKW]]
| 250 cc
| 1935, 1936, 1937, 1938, 1939
|-
| 175 cc
| 1927, 1928, 1930, 1937, 1938
|-
!rowspan=6| 6
| {{flagicon|ITA}} [[Gilera]]
| 500 cc
| 1950, 1952, 1953, 1954, 1955, 1957
|-
|rowspan=2| {{flagicon|ITA}} [[Moto Guzzi]]
| 350 cc
| 1953, 1954, 1955, 1957 ▼|-
| 250 cc
| 1933, 1947
|-
| {{flagicon|GER}} [[Kreidler]]
| 1969, 1972
|-
!rowspan=32| 5
| {{flagicon|UK}} [[Velocette]]
| 350 cc
| 1936, 1939, 1948, 1949, 1950
|-
|rowspan=2| {{flagicon|JPN}} [[Kawasaki Heavy Industries|Kawasaki]]
| 250 cc
| 1969
|-
!rowspan=63| 4
|rowspan=2| {{flagicon|UKITA}} [[AJSMoto Guzzi]]
| 500 cc
| 1926, 1949
|-
| 350 cc
▲| 1953, 1954, 1955, 1957
| 1926, 1927
|-
|rowspan=2| {{flagicon|UK}} [[Excelsior Motor Company|Excelsior]]
| 250 cc
| 1928, 1930
|-
| 175 cc
| 1931, 1932
|-
|rowspan=2| {{flagicon|ITA}} [[Morbidelli]]
| 1975, 1977, 1979
|-
!rowspan=64| 3
|rowspan=2| {{flagicon|UK}} New[[Norton GerrardMotorcycle Company|Norton]]
| 250 cc
| 1925, 1926, 1929
|-
|rowspan=3| {{flagicon|UK}} [[Rudge-Whitworth|Rudge]]
| 500 cc
| 19301951
|-
| 350 cc
| 1951, 1952
| 1930
|-
| 250 cc
| 1934
|-
|rowspan=2| {{flagicon|ESP|1977}} [[Bultaco]]
| 1978, 1981
|-
!rowspan=166| 2
|rowspan=2| {{flagicon|UK}} [[Levis (motorcycle)|LevisVelocette]]
| 250 cc
| 1922
|-
| 175 cc
| 1924
|-
|rowspan=2| {{flagicon|BEL}} PA-[[Blackburne (motorcycles)|Blackburne]]
| 350 cc
| 1949, 1950
| 1924
|-
| 250 cc
| 1924
|-
|rowspan=2| {{flagicon|UK}} [[Rex-Acme]]
| 350 cc
| 1925
|-
| 250 cc
| 1923
|-
| {{flagicon|BEL}} Ready-[[Blackburne (motorcycles)|Blackburne]]
| 175 cc
| 1925, 1926
|-
| {{flagicon|UK}} [[Sunbeam Cycles|Sunbeam]]
| 500 cc
| 1928, 1929
|-
| {{flagicon|UK}} [[New Imperial Motors|New Imperial]]
| 250 cc
| 1931, 1932
|-
| {{flagicon|ITA|1861}} [[Benelli (motorcycles)|Benelli]]
| 175 cc
| 1933, 1934
|-
| {{flagicon|GER|Nazi}} [[BMW Motorrad|BMW]]
| 500 cc
| 1938, 1939
|-
|rowspan=2| {{flagicon|DDR}} [[MZ Motorrad- und Zweiradwerk|MZ]]
|
