Cabac
    1973-
    Smith's Electric Vehicles Ltd
    Gateshead

Cadogan
    1904-?

Caledon
    1914-1926
    Scottish Commercial Cars Ltd
    Glasgow, Skotlanti

Camill
    n. 1959-n. 1969
    E Boydell & Co Ltd
    Gloucester

Cargomatic
    1980-

Carlaw
    1920
    David Carlaw & Co
    Glasgow, Skotlanti

Carmichael
    n. 1960-
    Carmichael & Sons (Worcester) Ltd

Carmont
    1901-1902
    H Carmont
    Kingston-upon-Thames, Surrey

Carr
    1900
    Carr & Co Ltd
    Carlisle, Cumbria

Carrimore
    1926-1928
    Carrimore Six Wheelers
    Lontoo

Carrimore-Lynx
    1930-1937
    Carrimore Six Wheelers Ltd
    Lontoo

Carter
    1906-n. 1909
    Carter Bros Ltd
    Rochdale, Lancashire

CC
    1905-1906
    Commercial Cars Ltd
    Lontoo

Cedes
    1901-n. 1906
    Johnson & Phillips Ltd
    Charlton, Lontoo

Cedes-Stoll
    1912-1916
    Johnson & Phillips Ltd
    Charlton, Lontoo

Centre Steer
    1903
    Centre Steer Tractive Ltd
    Kingston-upon-Thames, Surrey

Chambers
    1919-1925
    Chambers Motors Ltd
    Belfast, Pohjois-Irlanti

Chaseside
    1937-1965
    Chaseside Engineering Co Ltd
    Enfield, Middlesex

Chrysler (II)
    1978-1981
    Chrysler International S/A
    Lontoo

Chubb Fire
    1970-
    Chubb Pyrene Ltd

Church
    1908

Clarke
    1902-1903

Clarkson
    1898-1908
    Clarkson & Capel Stream Car Syndicate ltd
    Dalston, Lontoo

Clayton
    1902, 1912-1930
    Clayton & Shuttleworth ltd
    Lincoln

Cleco
    n. 1950-n. 1957
    Cleco Industries ltd
    Leicester

Clift
    1905-1910
    Clift's Engineering Co ltd
    Lontoo

Clyde (I)
    1905-n. 1914
    George H Wait & Co Ltd
    Leicester

Clyde (II)
    1913-1938
    Mackay & Jardine Ltd
    Wishaw, Lanarkshire, Skotlanti

Coborn
    1908
    Coborn Motor Co Ltd
    Bromley, Kent

Coles (I)
    1879-
    Henry J Coles Ltd
    Derby, Derbyshire

Commer Car
    1907-1926
    Commercial Cars Ltd
    Luton, Bedfordshire

Commer-Harrington
    1951-1956
    Thomas Harrington Ltd
    Hove, East Sussex

Commer-Unipower
    1958-n. 1970
    Universal Power Drives Ltd
    Perivale, Middlesex

Commer
    1926-1978
    Commer Cars Ltd
    Luton, Bedfordshire

Commercial Carrier
    n. 1918

Cornwall
    1957-1958
    Cornwall Motor Transport Ltd
    Helston, Cornwall

Coulthard
    1895-1907
    T Coulthard & co Ltd
    Preston, Lancashire

County
    1916-1921

CPT
    n. 1914
    Consolidated Pneumatic Toll Co Ltd
    Fraseburgh, Aberdeenshire

Craig-Dorwald
    1904-1906
    Putney Motor Co
    Lontoo

Crane Travellers
    1971-
    Vickers-AWD, Jones Cranes Ltd
    Letchworth, Hertfordshire

Cremorne
    1903-1906
    Cremorne Motor Mfg Co
    Chelsea, Lontoo

Critchley-Norris
    1906-1908
    Critchley-Norris Motor Co
    Preston, Lancashire

Crompton
    1911
    Crompton
    Chelmsford, Essex

Crompton Electricar
    1972-
    Crompton Electricars Ltd
    Tredegar, Monmouth, Wales

Crompton Leyland Electricar
    1968-1972
    Crompton Leyland Electricars Ltd
    Tredegar, Monmouth, Wales

Crossley-Kegresse
    1925
    Crossley Motors Ltd
    Gerton, Manchester

Crowden
    1901-1902
    Crowden Motor Car Co
    Leamington Spa, Warwickshire

Crossley
    1923-1956
    Crossley Motors ltd
    Gorton, Manchester

Crown (Clark)
    1976-1980
    Crown Cranes Ltd
    Alfreton, Derbyshire

Cumberland
    1905-n. 1908
    Pratchitt Bros
    Carlisle, Cumbria

CWS Bell
    1920-1930
    Co-operative Wholesale Society Ltd
    Manchester