| C. Ward Transport Ltd | Birmingham | 2017 |
| C. Z. P. Services Limited | Rugeley | 2014 |
| C.A. Chauffering Ltd | London | 2014 |
| C.A. Mair (Shipping) Limited | Ayr | 1987 |
| C.A. Prime Solutions Ltd | Doncaster | 2024 |
| C.A.A Transport Ltd | High Wycombe | 2026 |
| C.A.B. Services (UK) Ltd | Honeybourne | 2006 |
| C.A.D Road Transport Ltd | Ipswich | 2021 |
| C.A.L. Midlands Ltd | Wednesbury | 2015 |
| C.A.Moraru Ltd | Rochdale | 2025 |
| C.A.N Logistics Group Ltd | London | 2021 |
| C.A.N. Transport Ltd | Birmingham | 2018 |
| C.A.R. Couriers Limited | Willenhall | 2013 |
| C.A.R.S. UK Shipping Limited | London | 1991 |
| C.A.R.S. United Kingdom Limited | London | 2005 |
| C.A.T Transport 21 Ltd | Leeds | 2023 |
| C.A.T. Premier Chauffeurs Ltd | London | 2026 |
| C.Arora Logistics Ltd | Bradford | 2026 |
| C.B. Couriers (2021) Limited | Burton-On-Trent | 2021 |
| C.B.G. Transport Ltd | Evesham | 2001 |
| C.Ballis Logistics Ltd | London | 2021 |
| C.Bizgan Ltd | Rochdale | 2025 |
| C.Blakey Haulage Ltd | Alloa | 2023 |
| C.C. Jessop Haulage Co. Ltd. | Brough | 1994 |
| C.C.& R.J.Emerson Limited | St. Albans | 1963 |
| C.C.M. Titan Haulage Ltd | Cambridge | 2025 |
| C.C.R.S. Investments Ltd | Bangor | 2019 |
| C.C.R.S. Prestige Storage Ltd | Bangor | 2019 |
| C.C.R.S. Recovery Ltd | Bangor | 2012 |
| C.C.T. Logistics Limited | Harrow | 1993 |
| C.Ciprian Transport Limited | Runcorn | 2015 |
| C.D.& a. Limited | Swanscombe | 2011 |
| C.D.C Haulage Ltd | Dagenham | 2018 |
| C.D.K Logistics Ltd | Coulsdon | 2019 |
| C.D.N. (Suffolk) Ltd | Ipswich | 2016 |
| C.D.S. Recovery Services Limited | Bolton | 2022 |
| C.D.S. Secretaries Ltd | Hornchurch | 2019 |
| C.Docherty Logistics Ltd | Carlisle | 2025 |
| C.E Rail Limited | Middlesex | 2014 |
| C.E. Jeatt & Sons Limited | Wokingham | 1974 |
| C.E.F.N Tacsi CYF | Penrhyndeudraeth | 2017 |
| C.E.H Logistics Ltd | Stoke-On-Trent | 2011 |
| C.E.M Couriers Ltd | Doncaster | 2018 |
| C.E.S Auto Transport Ltd | Manchester | 2021 |
| C.E.T. Haulage Ltd | Burton-On-Trent | 2017 |
| C.F. Jennings Limited | Nigg | 1993 |
| C.F.Mee (Haulage) Limited | Coalville | 2004 |
| C.F.Prosolutions Ltd | London | 2025 |
| C.F.S. Freight Forwarding Limited | Liverpool | 1991 |
| C.Fenner Ltd | Ipswich | 2019 |
| C.G. Eddolls Transport Limited | Banbury | 2002 |
| C.G. Haulage Limited | Harlow | 1994 |
| C.G. Tolson Limited | Barnsley | 2005 |
| C.H. Jeakins & Sons Limited | Botany Bay | 2009 |
| C.H. Robinson Worldwide (UK) Limited | Slough | 1978 |
| C.H. Rugg & Co. Limited | London | 2017 |
| C.H. Walker (Transport) Limited | Meridian Business Park | 1976 |
| C.H.D. (Forwarding) Limited | Felixstowe | 1987 |
| C.H.P. Holdings Limited | Leeds | 2006 |
| C.H.S Transport Solutions Limited | Coatbridge | 2016 |
| C.Hinks Transport Ltd | Armagh | 2025 |
| C.I. Way Ltd | Hollym | 2023 |
| C.I.A Chauffeuring Limited | Maidenhead | 2018 |
| C.I.A Transport Ltd | London | 2026 |
| C.I.A. Haulage Ltd | London | 2018 |
| C.I.E.89 Ltd | Doncaster | 2025 |
| C.I.F. Limited | Fulham | 1998 |
| C.J. Bird Transport Limited | Mid Glamorgan | 2000 |
| C.J. Clothier Transport Limited | Somerset | 2002 |
| C.J. Haynes & SON Limited | Newport Pagnell | 1984 |
| C.J. Morton & Company Limited | Brighouse | 1988 |
| C.J. Pettitt Transport Limited | Uttoxeter | 1998 |
| C.J. Volkert Haulage Ltd | Bury St. Edmunds | 2008 |
| C.J.'s Travel Limited | St Helens | 2000 |
| C.J.Hassey Logistics Ltd | Blackpool | 2019 |
| C.J.P.V Ltd | Northampton | 2026 |
| C.Jay Will Ltd | Swansea | 2025 |
| C.K. Cargo Limited | Crawley | 1985 |
| C.K. Golder Limited | Carmarthen | 2013 |
| C.K.C Transport Ltd | London | 2019 |
| C.K.L. Transport Limited | Greek Street | 1974 |
| C.Kelly Courier Services Ltd | Liverpool | 2025 |
| C.L.C.A Assistance Limited | Shrewsbury | 2019 |
| C.L.D.A.G Limited | Wigan | 2019 |
| C.L.Logistics Ltd | | 2004 |
| C.L.S. Spain Limited | Cannock | 2014 |
| C.M Drop Ltd | Glasgow | 2026 |
| C.M.A&C Trans Ltd | Rochdale | 2021 |
| C.M.A. Haulage Limited | Purfleet | 1997 |
| C.M.D. Performance Limited | Irvine | 2018 |
| C.M.Lemos & Company Limited | London | 1946 |
| C.M.V.Logistics Limited | Twickenham | 2015 |
| C.Marshall Couriers Ltd | Stirling | 2017 |
| C.Mcadams Limited | Stockton On Tees | 1913 |
| C.N. Transport Limited | Hebden Bridge | 2006 |
| C.N.D Transpeed Ltd | Slough | 2024 |
| C.N.F Cleaning Ltd | Leicester | 2020 |
| C.O. Siwy Janiks Transport Ltd | Nottingham | 2025 |
| C.O.D.E. Trans Ltd | Bracknell | 2019 |
| C.On Group Ltd | Waltham Cross | 2023 |