| Acorn Taxis Boston Ltd | Boston | 2019 |
| Acorn Taxis Limited | Tamworth | 2010 |
| Acorn Transport and Plant Hire Limited | Higham Ferrers | 2003 |
| Acorn Transport Limited | Inverurie | 1990 |
| Acorn Travel (UK) Ltd | Nottingham | 2022 |
| Acorn Travel South Wales Ltd | | 2003 |
| Acornbrook Forwarding Ltd | Northampton | 2019 |
| Acourier Limited | Crewe | 2000 |
| Acoustikit Limited | Blackburn | 1990 |
| ACP Automotive Limited | Leighton Buzzard | 2016 |
| ACP Courier Ltd | Doncaster | 2025 |
| ACP Freight Services Limited | Hampshire | 1996 |
| ACP Sameday Ltd | Walsall | 2026 |
| ACP Transport Ltd | Northampton | 2023 |
| ACP Transport Services Ltd | Colchester | 2022 |
| ACP Worldwide Holdings Ltd | Castle Donington | 1999 |
| ACP Worldwide Ltd | Castle Donington | 1995 |
| Acpf Trans Ltd | London | 2025 |
| Acpuk Ltd | Ellesmere Port | 2019 |
| Acquah & Co Ltd | Coventry | 2021 |
| Acquah Logistics Ltd | Liverpool | 2025 |
| Acquistare Limited | Harlow | 2024 |
| ACR Aviation Capacity Resources UK Ltd | Warrington | 2025 |
| ACR Couriers Ltd | Oldbury | 2025 |
| ACR Driving Services Limited | Aylesbury | 2025 |
| ACR Go Ltd | Rochester | 2018 |
| ACR International Mobility Limited | Bexley | 2014 |
| ACR Tipping Services Ltd | West Drayton | 2013 |
| ACR Trans Ltd | Norwich | 2016 |
| ACR Trans Services Ltd | Crawley | 2019 |
| Acr.Co Trans Limited | Ilford | 2019 |
| ACR24 Transport Ltd | Peterborough | 2024 |
| Acraram Ltd | Kidderminster | 2019 |
| Acre Airport Parking Ltd | Bristol | 2024 |
| Acre Cars Group Ltd | Hertford | 2026 |
| Acre Cars Ltd | Ware | 2013 |
| Acre Logistics Ltd | Sunderland | 2026 |
| Acrealton Limited | London | 1984 |
| Acres Storage Ltd | Chester | 2025 |
| Acrigab Ltd | Wellingborough | 2013 |
| Acroflight Ltd | Billericay | 2018 |
| Acrolein Ltd | Stafford | 2022 |
| Acron Aviation Analytics Limited | Altrincham | 2000 |
| Acropolis Aviation Limited | Farnborough | 2008 |
| Acropolis Cars & Minibuses Limited | London | 2008 |
| Acropolis Delivery Ltd | London | 2023 |
| Acropolis Minibuses Limited | London | 2012 |
| Across Town Taxis Limited | Sudbury | 2022 |
| Across Wales Travel Club Ltd | Cardiff | 2023 |
| Acrowtrans Ltd | Cardiff | 2018 |
| Acrs Transport Ltd | Bedworth | 2025 |
| ACS Aviation Industries Ltd | Braintree | 2014 |
| ACS Cars Ltd | Irvine | 2025 |
| ACS Couriers and Logistics Ltd | Smethwick | 2019 |
| ACS Couriers Ltd | Maidenhead | 2006 |
| ACS Delivery Ltd | Greenford | 2018 |
| ACS Express Limited | Hayes | 2014 |
| ACS Logistics Ltd | Pontefract | 2019 |
| ACS Private Hire Ltd | London | 2020 |
| ACS Reverse Logistics Ltd | Southall | 2006 |
| ACS Timber Haulage Ltd | Whitchurch | 2022 |
| ACS Trans Ltd | London | 2018 |
| ACS Transport Ltd | Rugby | 2022 |
| ACS1 Ltd | Peterborough | 2019 |
| Acsc Transport Ltd | Reading | 2024 |
| Acsis Logistics Ltd | Harrow | 2021 |
| ACSSERVICES23 Ltd | Spalding | 2026 |
| Acswift Courier Ltd | Kington | 2026 |
| ACT Center Ltd | Wickford | 2019 |
| ACT Couriers and Transport Limited | Rotherham | 2022 |
| ACT Delivery Limited | Coventry | 2026 |
| ACT Fast Ltd | London | 2025 |
| ACT Forwarding & Logistics Limited | Dover | 2005 |
| ACT Removals Ltd | Bristol | 2025 |
| ACT Star Ltd | Hemel Hempstead | 2023 |
| ACT Trans Ltd | Peterborough | 2014 |
| ACT Transport Ltd | Maidstone | 2023 |
| Acte Plus UK Ltd | Sheffield | 2026 |
| Actega Schmid Rhyner AG Limited | Barnet | 2024 |
| Action Cars & Taxis Ltd | Pontefract | 2012 |
| Action Delivery Services Limited | Tunstall | 1996 |
| Action Freight Ltd | Leicester | 2024 |
| Action Global Logistics Limited | Langley | 1997 |
| Action International (Manchester) Limited | Sale | 2002 |
| Action Logistics Ltd | Swindon | 2020 |
| Action Moves Logistics Ltd. | Rugby | 2023 |
| Action on Dementia CIC | London | 2026 |
| Action Roadways Limited | Erith | 1981 |
| Action Services Ltd | London | 2017 |
| Action Shipping Limited | London | 2019 |
| Action Traction Midlands Ltd | Darlaston | 2020 |
| Action Trans Ltd | Sheffield | 2022 |
| Action Transport Group Ltd | Birmingham | 2024 |
| Actionfold Limited | Swansea | 2018 |
| Actionfordogs Ltd | Cardiff | 2019 |
| Activ Delivery Ltd | Aberdeen | 2024 |
| Activ Power and Sail Limited | Wareham | 2003 |
| ACTIV7 Ltd | Stafford | 2019 |
| ACTIV8 Global Logistics Ltd | Beaconsfield | 2025 |
| Activan Ltd | Corby | 2015 |