| AJ Barbers Group Limited | Other services | 2021 |
| AJ Capital Investment Ltd | Real estate | 2021 |
| AJ Cockbain Ltd | Health & social care | 2020 |
| AJ Creative Art Limited | Arts & recreation | 2026 |
| AJ Garden Hard Build Ltd | Administrative & support | 2026 |
| AJ Heavy Goods Ltd | Transport & logistics | 2018 |
| AJ International Events Limited | Manufacturing | 2024 |
| AJ Parcels Limited | Transport & logistics | 2014 |
| AJ Properties & Rentals Ltd | Real estate | 2025 |
| AJ Recruitment Group Limited | Administrative & support | 2016 |
| AJ Roberts Construction (Main Street) Ltd | Construction | 2025 |
| AJ Smith Developments Limited | Real estate | 2026 |
| AJ Smith Investment Ltd | Financial services | 2021 |
| AJ Social Care Recruitment Limited | Administrative & support | 2004 |
| AJ Stevens Properties Limited | Real estate | 2020 |
| AJ Tech Consulting Ltd | Information & communication | 2022 |
| AJ Utilities Ltd | Construction | 2025 |
| AJ World Consultancy Limited | Professional & scientific | 2016 |
| AJ2 Investment Ltd | Real estate | 2026 |
| Ajasoftwaresolutions Limited | Wholesale & retail | 2009 |
| AJB Credit Control Services Ltd | Administrative & support | 2014 |
| AJB Healthcare Projects Consultancy Ltd | Professional & scientific | 2022 |
| AJB Joinery & Building Ltd | Manufacturing | 2025 |
| AJC Project Solutions Limited | Information & communication | 2025 |
| Ajcmlc Oncology Limited | Health & social care | 2019 |
| AJD Travel Ltd | Administrative & support | 2024 |
| Ajdelight Ltd | Wholesale & retail | 2021 |
| Ajdk Consulting Limited | Professional & scientific | 2017 |
| AJE Construction Services Ltd | Professional & scientific | 2024 |
| AJE Distribution Limited | Wholesale & retail | 2022 |
| AJE Financial Consultancy Limited | Professional & scientific | 2023 |
| AJE Investments NO.1 Limited | Real estate | 2023 |
| AJE Wealth Investments Ltd | Real estate | 2024 |
| AJG Project Management Yorkshire Limited | Professional & scientific | 2019 |
| AJH (2018) Limited | Professional & scientific | 2017 |
| AJH Kenmare Limited | Extraterritorial | 2010 |
| Ajhappyliving Limited | Health & social care | 2023 |
| Ajib Software Solutions Ltd | Information & communication | 2024 |
| Ajit AJ Transport Ltd | Transport & logistics | 2026 |
| AJK Plumb and Heating Services Ltd | Construction | 2024 |
| AJK Properties Leeds Limited | Real estate | 2016 |
| AJK Property Ltd | Real estate | 2026 |
| Ajkm Property Ltd | Real estate | 2011 |
| AJL Creations Ltd | Construction | 2025 |
| AJL Investments Limited | Real estate | 2023 |
| AJM Asset Group Limited | Financial services | 2025 |
| AJM Assets Limited | Financial services | 2013 |
| AJM Education Consultancy Ltd | Professional & scientific | 2021 |
| AJM Interiors Ltd | Construction | 2020 |
| AJM Landscape Architects Ltd | Professional & scientific | 2014 |
| AJM Property Group Ltd | Real estate | 2025 |
| Ajnb Consulting Ltd | Information & communication | 2012 |
| AJR Energy Solutions Ltd | Construction | 2025 |
| AJR Home Projects Limited | Construction | 2023 |
| Ajrs Security Ltd | Administrative & support | 2019 |
| AJS Electrics Ltd | Construction | 2015 |
| AJS Investment Group Limited | Real estate | 2020 |
| AJS Properties Yorkshire Limited | Real estate | 2026 |
| AJS Security Solutions Limited | Administrative & support | 2025 |
| Ajs-Fire Limited | Construction | 2025 |
| AJT Brothers Limited | Financial services | 2019 |
| AJT Trader Ltd | Construction | 2025 |
| Ajvalidations Ltd | Information & communication | 2019 |
| Ajwa Taste Ltd | Hospitality | 2024 |
| Ajy-Ms Ltd | Financial services | 2020 |
| Aj’S Jerkhouse Ltd | Hospitality | 2026 |
| AK & AM Stays Ltd | Real estate | 2025 |
| AK 2 China Limited | Hospitality | 2026 |
| AK Bros Ltd | Real estate | 2020 |
| AK Business Park Ltd | Real estate | 2025 |
| AK Capitals Ltd | Health & social care | 2014 |
| AK Carz Leeds Limited | Wholesale & retail | 2020 |
| AK Construction Management Ltd | Construction | 2026 |
| AK Consulting (Yorkshire) Limited | Professional & scientific | 2024 |
| AK Daily Deals Ltd | Wholesale & retail | 2026 |
| AK Electrical Yorkshire Ltd | Construction | 2020 |
| AK Fuel Court Management Ltd | Wholesale & retail | 2024 |
| AK Leeds Store Limited | Wholesale & retail | 2026 |
| AK OFF Licence Leeds Ltd | Wholesale & retail | 2025 |
| AK Properties & Management (Leeds) Ltd | Real estate | 2021 |
| AK Radiology Leeds Limited | Health & social care | 2019 |
| AK Storage Limited | Real estate | 2022 |
| AK Store Leeds Ltd | Wholesale & retail | 2025 |
| AK Surgical Services Ltd | Health & social care | 2024 |
| AK Theatre Productions Ltd | Arts & recreation | 2026 |
| AK Training Academy Limited | Other services | 2017 |
| AK Whippy Ltd | Manufacturing | 2026 |
| AKA Concepts Ltd | Information & communication | 2020 |
| Akaad Limited | Health & social care | 2023 |
| Akak Consulting Ltd | Professional & scientific | 2018 |
| Akamas Gear Limited | Wholesale & retail | 2025 |
| Akande Homes Limited | Real estate | 2024 |
| Akapo Group Limited | Financial services | 2021 |
| Akari Beechcroft Limited | Health & social care | 1996 |
| Akari Care Cymru Limited | Health & social care | 2006 |
| Akari Care Group Limited | Professional & scientific | 2016 |
| Akari Care Holdings Limited | Financial services | 2024 |
| Akari Care Limited | Health & social care | 2011 |
| Akarian Limited | Professional & scientific | 2014 |
| Akash Radio Leeds Ltd | Information & communication | 2013 |