| Concord Asia Limited | Felixstowe | 2004 |
| Concorde 25 Ltd | Sevenoaks | 2025 |
| Concorde Courier & Cargo Ltd | Leicester | 2021 |
| Concorde Freight Ltd | Birmingham | 2020 |
| Concorde Logistics Ltd | Telford | 2025 |
| Concorde Transport Services Limited | Norwich | 2002 |
| Concordia International Forwarding Limited | Ashford | 1978 |
| Concours House Limited | Bath | 2025 |
| Concours Vehicles Limited | Halesowen | 2019 |
| Concret Haulage Limited | Watford | 2024 |
| Concrete Cars Ltd | Milton Keynes | 2017 |
| Concrete Haulage Limited | London | 2014 |
| Concrete Transport Solutions Limited | Sheerness | 2007 |
| Condei Trans Ltd | Harlow | 2017 |
| Condere Ltd | Chessington | 2023 |
| Condor (SW) Limited | Bury St. Edmunds | 2017 |
| Condor ASL Ltd | Cranbrook | 2021 |
| Condor Carriers Limited | Ormskirk | 2020 |
| Condor Dairies Ltd | Leyland | 2021 |
| Condor Executive Limited | Larne | 2017 |
| Condor Ferries Limited | Poole | 1987 |
| Condor Limited | Poole | 1995 |
| Condor Local Limited | Larne | 2025 |
| Condor Logistics Limited | Poole | 1964 |
| Condor Marine Services Limited | Poole | 1995 |
| Condor Point UK Limited | London | 2017 |
| Condor Port Agencies Limited | Poole | 2002 |
| Condor UK Holdings Limited | Poole | 2002 |
| CONDOR68 Ltd | Milton Keynes | 2019 |
| Condrache Ltd | Ellesmere Port | 2022 |
| Conductor Technology International Services Ltd | Croydon | 2026 |
| Conduit Aerospace Limited | London | 2019 |
| Condurache Logistics Ltd | Normanton | 2013 |
| Conduruta Transport Limited | Leicester | 2019 |
| Cone GUY Limited | Maidstone | 2014 |
| Conectiv Supply Chain Solutions UK Limited | London | 2024 |
| Coneing and Traffic Flow Ltd | Sheffield | 2015 |
| Conesence Cargo Ltd | Mildenhall | 2016 |
| Conetrans Limited | Doncaster | 2023 |
| Conex European Ltd | Thornton-Cleveleys | 2022 |
| Conex Freight Systems Limited | London | 2026 |
| Conex Trans Ltd | Enfield | 2023 |
| Conexim Solutions Ltd | Felixstowe | 2015 |
| Conexx London Minicab Ltd | West Drayton | 2014 |
| Confiable Solutions Ltd | Birmingham | 2024 |
| Confiance Logistics Ltd | Swadlincote | 2025 |
| Confidence BUS & Coach Hire Ltd | Leicester | 2026 |
| Confidence BUS & Coach Ltd. | Leicester | 2003 |
| Confidence Business Ltd | London | 2023 |
| Confidence Interval Ltd | London | 2020 |
| Confident Freight Forwarding Limited | Liverpool | 2014 |
| Confidential Incident Reporting & Analysis Service Limited | London | 2016 |
| Confido Logistics Services Ltd | Tilbury | 2022 |
| CONFIG3PL Ltd | Shipley | 2024 |
| Conflux Alliance Ltd | Chester | 2026 |
| Congo Sky Airlines Ltd | London | 2025 |
| Congologistics Ltd | Edgware | 2021 |
| Congresbury Community Transport | Bristol | 2011 |
| Coning Haulage Limited | York | 2016 |
| Conington Hangar Company Ltd | Peterborough | 2026 |
| Conisbrough Ranger Ltd | Doncaster | 2021 |
| Coniston Ferry Services Limited | Cumbria | 2006 |
| Conkyp Driver Services Ltd | Bolton | 2026 |
| Conlon Lowloader Haulage Ltd | Newry | 2005 |
| Conman Haulage Limited | Beverley | 2003 |
| Connair Ltd | Canterbury | 2021 |
| Connaught Air Services Limited | Hessle | 1985 |
| Connaught Mini Buses Ltd | Luton | 2023 |
| Connaught Shipping Agency Limited | Grays | 1961 |
| Connect 247 Ltd | Wallington | 2019 |
| Connect 31 Limited | Bournemouth | 2017 |
| Connect 49 (Contracts) Ltd | Teignmouth | 2010 |
| Connect 49 Limited | Teignmouth | 1996 |
| Connect Air International Ltd | Hereford | 2009 |
| Connect Assynt Ltd. | Lairg | 2011 |
| Connect Barnstaple Ltd | Barnstaple | 2026 |
| Connect Cambridge Ltd | Cambridge | 2025 |
| Connect Care Enterprise Limited | Salford | 2018 |
| Connect Cars (UK) Limited | Blackburn | 2010 |
| Connect Cars Nottingham Ltd | Nottingham | 2025 |
| Connect Chauffeurs Ltd | Bromley | 2026 |
| Connect City Ltd | Hull | 2025 |
| Connect Cndr Holdings Limited | London | 2008 |
| Connect Cndr Intermediate Limited | London | 2009 |
| Connect Cndr Limited | London | 2008 |
| Connect Coaches Ltd | Flint | 2024 |
| Connect Courier Express Ltd | Walsall | 2021 |
| Connect Courier Services Ltd | Poulton-Le-Fylde | 2022 |
| Connect Deliver Limited | Birmingham | 2022 |
| Connect Direct Shipping Ltd | Hatfield | 2016 |
| Connect Distribute Ltd | Greenford | 2024 |
| Connect Executive Cars Limited | Birmingham | 2015 |
| Connect Express Limited | London | 2023 |
| Connect Freight & Logistics Ltd | Doncaster | 2024 |
| Connect Fulfilment Services Ltd | Scunthorpe | 2021 |
| Connect Haulage Ltd | Peterborough | 2020 |
| Connect International Limited | Sheffield | 2023 |
| Connect Interservice Ltd | Wembley | 2016 |
| Connect One Couriers Ltd | London | 2024 |
| Connect Parcel Services Ltd | Ilford | 2025 |