| Airbourne Colours Ltd | Manufacturing | 2010 |
| Airbourne Executive Ltd | Extraterritorial | 2023 |
| Airbourne Graphics and Signs Limited | Extraterritorial | 2021 |
| Airbourne Holdings Limited | Financial services | 2015 |
| Airbourne Properties Ltd | Real estate | 2023 |
| Airedale LEA (Eastburn) Management Company Limited | Households | 2016 |
| Airline Taxi Solutions Ltd | Transport & logistics | 2025 |
| Airradio Limited | Professional & scientific | 2009 |
| Airtek Solutions Ltd | Energy | 2025 |
| Airwave Communications Ltd | Information & communication | 2020 |
| Aitken Moss Consulting Limited | Information & communication | 2008 |
| Aitken Moss Property Ltd | Real estate | 2021 |
| Aizal Ecommerce Ltd | Wholesale & retail | 2026 |
| AJ Derby Investments Ltd | Real estate | 2014 |
| AJ Electrical & Trades Ltd | Construction | 2025 |
| AJ Geotechnics Limited | Professional & scientific | 2022 |
| AJ Investment Solutions Limited | Administrative & support | 2014 |
| AJ Property Assets Ltd | Real estate | 2025 |
| AJ Road Transport Ltd | Transport & logistics | 2022 |
| AJ Shipping Ltd | Transport & logistics | 2025 |
| AJ Varey Consulting Limited | Professional & scientific | 2022 |
| AJA Fencing & Paving Limited | Construction | 2022 |
| AJB Building and Landscaping Services Limited | Construction | 2020 |
| AJB Property Services Limited | Real estate | 2012 |
| AJB Rail Limited | Construction | 2014 |
| AJB Transport (Hatton) Ltd | Transport & logistics | 2013 |
| AJB Windows Doors and Conservatories Ltd | Construction | 2021 |
| AJC Optimisation Ltd | Professional & scientific | 2020 |
| Ajdp Electrical Limited | Professional & scientific | 2018 |
| AJG Brickwork (UK) Ltd | Construction | 2008 |
| AJH Plastering Ltd | Construction | 2019 |
| AJK Derby Ltd | Hospitality | 2025 |
| Ajkj Ltd | Real estate | 2025 |
| AJM Detailing Ltd | Other services | 2025 |
| AJM Duhra Limited | Real estate | 2017 |
| AJM Heating & Solar Limited | Construction | 2014 |
| Ajmal Optics Ltd | Health & social care | 2015 |
| Ajora Foods Ltd | Hospitality | 2023 |
| AJP Land & Property Consultants Ltd | Other services | 2023 |
| Ajrj Property Ltd | Real estate | 2023 |
| AJS Building and Developments Ltd | Water & waste | 2024 |
| AJW Consulting Services Limited | Professional & scientific | 2022 |
| AJW Digital Ltd | Information & communication | 2025 |
| AJW Motors Ltd | Wholesale & retail | 2015 |
| AK Advisory Services Ltd | Professional & scientific | 2021 |
| AK Decorating Services Limited | Construction | 2024 |
| AK Drivers Ltd | Administrative & support | 2017 |
| AK Innovative Design Consultants Limited | Professional & scientific | 2022 |
| AK Innovative Design Solution Ltd | Professional & scientific | 2016 |
| AK Kebabs Limited | Hospitality | 2025 |
| Ak's Enterprise Group Ltd | Hospitality | 2024 |
| Ak's Motors Group 24/7 Limited | Wholesale & retail | 2025 |
| Ak's Storage Limited | Wholesale & retail | 2026 |
| Ak-M Facilities Ltd | Financial services | 2024 |
| Akaal Investments Limited | Real estate | 2020 |
| Akch Residentials Limited | Real estate | 2019 |
| Akeenah Group Ltd | Professional & scientific | 2021 |
| Akero Home Ltd | Real estate | 2024 |
| Akhet Technologies Ltd | Information & communication | 2025 |
| Akhr Ltd | Professional & scientific | 2011 |
| AKI Coaching Limited | Other services | 2011 |
| Akib Ltd | Professional & scientific | 2026 |
| Akister Property Enterprise Ltd | Real estate | 2024 |
| Akiudi Ltd | Professional & scientific | 2022 |
| AKN Group Holdings Limited | Financial services | 2025 |
| Akoma International (UK) Limited | Wholesale & retail | 2002 |
| Akorne Limited | Real estate | 2015 |
| AKP Associates Limited | Other services | 2024 |
| AKP Housing Limited | Real estate | 2021 |
| AKP Transport Limited | Transport & logistics | 2024 |
| AKR Property Holdings Ltd | Real estate | 2022 |
| AKR Specialist Ventures Ltd | Households | 2026 |
| AKR Trading Limited | Health & social care | 2023 |
| Akroyd Consulting Limited | Information & communication | 2007 |
| AKS Global Immigration Ltd | Professional & scientific | 2025 |
| Aksa Security Ltd | Administrative & support | 2023 |
| Akshar Food Court PVT Limited | Wholesale & retail | 2024 |
| Akudreams Ltd | Information & communication | 2014 |
| AKV Logistic Ltd | Transport & logistics | 2015 |
| AKZ Media Ltd | Information & communication | 2025 |
| AL Fajar T/A Monmos Limited | Hospitality | 2026 |
| AL Hadi Brothers Ltd | Hospitality | 2024 |
| AL Iddisah Company Ltd | Wholesale & retail | 2026 |
| AL James Limited | Education | 2025 |
| AL Khair Hospitality Limited | Other services | 2019 |
| AL Madina Travel Ltd | Administrative & support | 2018 |
| AL Massar Ltd | Health & social care | 2025 |
| AL Nasiha Services CIC | Health & social care | 2022 |
| AL Quba Derby Ltd | Other services | 2023 |
| AL Quba Welfare | Other services | 2017 |
| Al-Furqan WAL Tanzeel Ltd | Education | 2026 |
| Al-Ikhlaas Ltd | Health & social care | 2024 |
| Al-Shifa Smile Limited | Health & social care | 2014 |
| AL22 Ltd | Arts & recreation | 2013 |
| ALA Consultants Limited | Administrative & support | 2025 |
| Alabaster (Eco) Ltd | Agriculture & fishing | 2026 |
| Alaina Transport Ltd | Transport & logistics | 2024 |
| Alaise Catering Ltd | Hospitality | 2020 |
| Alameen Medic Limited | Health & social care | 2024 |
| Alamuka Ltd | Wholesale & retail | 2025 |