| Andrew Thackray Limited | Professional & scientific | 2023 |
| Andrew Wheeler Consulting Limited | Professional & scientific | 2017 |
| Andrews and Platt Limited | Manufacturing | 1998 |
| Andrews Fasteners Limited | Manufacturing | 2014 |
| Andrews Group Leeds Holdings Ltd | Financial services | 2025 |
| Andrews Group Leeds Limited | Construction | 2022 |
| Andrews Properties and Investments Ltd | Real estate | 2025 |
| Andrey Karnaukhov Limited | Professional & scientific | 2017 |
| Andrius Transport Ltd | Transport & logistics | 2025 |
| Andromeda Homes & Investments Limited | Construction | 2011 |
| Andromeda Investments 2 Limited | Real estate | 2013 |
| Andromeda Investments 3 Ltd | Real estate | 2017 |
| Andrws Ltd | Professional & scientific | 2016 |
| Andy Barker Chimney Sweep Limited | Administrative & support | 2022 |
| Andy Barker Consultancy Ltd | Health & social care | 2015 |
| Andy Copsey Consultancy Ltd | Professional & scientific | 2021 |
| Andy Craggs & Co Limited | Other services | 2004 |
| Andy ION BIM Services Ltd | Professional & scientific | 2022 |
| Andy Mcgrath Tiling Ltd | Manufacturing | 2020 |
| Andy Pritchard Limited | Health & social care | 2025 |
| Andy Thornton International Limited | Manufacturing | 2026 |
| Andy's Blinds Limited | Wholesale & retail | 2024 |
| Andys Carpets Ltd | Wholesale & retail | 2018 |
| Andys Handy Limited | Construction | 2026 |
| Aneesa Hussain Consultancy Ltd | Professional & scientific | 2018 |
| Aneesah Property Ltd | Real estate | 2026 |
| Anella L Ltd | Hospitality | 2024 |
| Anete Lusina Ltd | Information & communication | 2022 |
| Anfa Holdings Limited | Financial services | 2016 |
| Anfa Properties Limited | Real estate | 2016 |
| Anfa Properties Yorkshire Limited | Real estate | 2017 |
| Angadi Ltd | Hospitality | 2025 |
| Angc Ltd | Wholesale & retail | 2019 |
| Angel Barber 2 Ltd | Other services | 2022 |
| Angel Barber Limited | Other services | 2020 |
| Angel Brow Bar Limited | Other services | 2024 |
| Angel Cleaning Yorkshire Ltd | Administrative & support | 2023 |
| Angel Displays Ltd | Manufacturing | 2004 |
| Angel Energy Supplies Limited | Administrative & support | 2013 |
| Angel GAS and Building Ltd | Construction | 2021 |
| Angel Motor Company (Leeds) Limited | Wholesale & retail | 2016 |
| Angel Multi-Services Ltd | Wholesale & retail | 2026 |
| Angel Propz Ltd | Real estate | 2016 |
| Angel Rail Express Limited | Construction | 2024 |
| Angel Refurbs Bradford Limited | Other services | 2023 |
| Angel Repair (Liverpool) Ltd | Other services | 2022 |
| Angel Repairs (Bolton) Ltd | Other services | 2022 |
| Angel Repairs (Newcastle) Ltd | Other services | 2022 |
| Angel Repairs (Sheff) Ltd | Other services | 2022 |
| Angel Station Limited | Administrative & support | 2015 |
| Angel Telecom Limited | Information & communication | 2009 |
| Angela Nails Limited | Other services | 2024 |
| Angela Williams Ltd | Professional & scientific | 2021 |
| Angela’S Beauty Spa Ltd | Other services | 2020 |
| Angelica Assets Limited | Real estate | 2025 |
| Angell Event Services Limited | Administrative & support | 2020 |
| Angels Amber Ltd | Health & social care | 2023 |
| Angels Community Enterprises C.I.C. | Administrative & support | 2005 |
| Angels Healthcare Solutions Ltd | Health & social care | 2019 |
| Angels of Freedom CIC | Other services | 2025 |
| Angels-Dwell Care Services Ltd | Public administration | 2023 |
| Angelsupplies Limited | Health & social care | 2025 |
| Angeltrack Limited | Information & communication | 2022 |
| Angintek Limited | Professional & scientific | 2020 |
| Angis Gifts Ltd | Other services | 2012 |
| Angle Hand Car Wash Ltd | Other services | 2024 |
| Anglebury Electrical Contractors Ltd | Construction | 2019 |
| Anglesey Pipes Services Limited | Construction | 2008 |
| Anglesite Limited | Information & communication | 2024 |
| Anglia Metal Limited | Manufacturing | 2012 |
| Anglian Regen AG Co Ltd | Financial services | 2024 |
| Anglo - French Timber Frame Ltd | Construction | 2009 |
| Anglo a GP Limited | Real estate | 2014 |
| Anglo Indian Exports Limited | Administrative & support | 1937 |
| Anglo-African Axion Accountancy and Consulting Limited | Professional & scientific | 2026 |
| Angloeuropean Express Limited | Transport & logistics | 2023 |
| Angloleigh Limited | | 1974 |
| Angry Cat Ltd | Professional & scientific | 2014 |
| Angus and Angus (Leeds) Ltd | Real estate | 2019 |
| Angus and Angus Properties Ltd | Real estate | 2020 |
| Angus Employment Matters Ltd | Professional & scientific | 2019 |
| Angus Mcdonald Management Ltd | Real estate | 2022 |
| ANH Property Services Ltd | Real estate | 2021 |
| Anikem Limited | Wholesale & retail | 1991 |
| Anila Consultancy Ltd | Professional & scientific | 2018 |
| Anima Care UK Limited | Professional & scientific | 2025 |
| Anima House Limited | Arts & recreation | 2019 |
| Animus Care Limited | Health & social care | 2014 |
| Anisya Dominik Cleaning Ltd | Administrative & support | 2025 |
| ANJ Pubs Ltd | Hospitality | 2024 |
| Anjelikafmm Limited | Transport & logistics | 2025 |
| Anjola | Financial services | 2018 |
| Anka Cafe Ltd | Hospitality | 2023 |
| Ankaa Limited | Other services | 2016 |
| Ankhor Ltd | Professional & scientific | 2025 |
| Ankle to Foot Clinic Limited | Health & social care | 2017 |
| Ankyta Limited | Information & communication | 2025 |
| Anmol Cuisine Ltd | Hospitality | 2021 |
| ANN and Anthony Stork Limited | Real estate | 1977 |
| Anna & Mark Ltd | Professional & scientific | 2025 |