| Avi's Cleaning Services Limited | Administrative & support | 2025 |
| Aviguns Ltd | Wholesale & retail | 2025 |
| Avir Courier Logistics Ltd | Transport & logistics | 2025 |
| Avironis Structures Limited | Construction | 2025 |
| Aviserv Limited | Transport & logistics | 2002 |
| Avispa Limited | Real estate | 2020 |
| AVK Investments Ltd | Real estate | 2021 |
| Avleen Dine & Catering Ltd | Hospitality | 2022 |
| Avleen Farms International Ltd | Wholesale & retail | 2022 |
| AVN Foods Limited | Wholesale & retail | 2025 |
| Avni Store 1623 Ltd | Wholesale & retail | 2024 |
| Avoga Ltd | Construction | 2025 |
| Avon Accounting Ltd | Professional & scientific | 1999 |
| Avon Records Limited | | 1983 |
| Avontic Ltd | Wholesale & retail | 2020 |
| Avreet IT Ltd | Information & communication | 2025 |
| Avtar Singh Transport Ltd | Transport & logistics | 2025 |
| Avvvi Ltd | Transport & logistics | 2023 |
| AVY Contractors Ltd | Construction | 2025 |
| Avyl Properties Limited | Real estate | 2025 |
| AW Styles Ltd | Wholesale & retail | 2024 |
| Awaleh Contract Services Ltd | Construction | 2015 |
| Awan Property Lettings Ltd | Real estate | 2021 |
| Awcprodecorating Ltd | Construction | 2025 |
| Awdal Ltd | Health & social care | 2021 |
| Awsm Services Ltd | Transport & logistics | 2022 |
| AXE & Tech Limited | Wholesale & retail | 2023 |
| Axflow Plumbing Ltd | Construction | 2018 |
| Axinian Ltd | Wholesale & retail | 2013 |
| Axiohmatech Ltd | Information & communication | 2024 |
| AY Fast Food Ltd | Hospitality | 2024 |
| Ayaan Computers Ltd | Information & communication | 2014 |
| Ayaan Roofing Limited | Construction | 2025 |
| Ayet Enterprise Ltd | Other services | 2022 |
| Aylesbury Retail Park Ltd | Real estate | 2025 |
| Aytas Care Ltd | Health & social care | 2024 |
| AZ Recruit Limited | Administrative & support | 2023 |
| Azan Investments Limited | Financial services | 2024 |
| AZC Consultancy Ltd | Construction | 2025 |
| Azeem Automations Ltd | Information & communication | 2026 |
| Azhaan ALI Limited | Wholesale & retail | 2025 |
| Azizi Traders Ltd | Wholesale & retail | 2023 |
| Azma Express Limited | Other services | 2011 |
| Azraco Ltd | Financial services | 2009 |
| Azure Flow Limited | Information & communication | 2025 |
| Azztech Solutions Ltd | Information & communication | 2021 |
| Azzurra Telecom Ltd | Information & communication | 2018 |
| A’S Minitmart Ltd | Wholesale & retail | 2024 |
| B & H Construction Limited | Construction | 2016 |
| B Bespoke Design & Build Ltd | Construction | 2019 |
| B I Consultancy Limited | Information & communication | 2015 |
| B M Realty Ltd | Real estate | 2024 |
| B N Constructionwise Limited | Construction | 2019 |
| B N L Motor Management Ltd | Administrative & support | 2026 |
| B P W Plastering Limited | Administrative & support | 2017 |
| B R Thathal Limited | Real estate | 2021 |
| B S Manak Ltd | Administrative & support | 2016 |
| B Senn Psychology Ltd | Health & social care | 2016 |
| B Whitby Ltd | Real estate | 2023 |
| B&B UK Builders Limited | Construction | 2024 |
| B&D Ventures Limited | Real estate | 2023 |
| B&G Property Group Ltd | Real estate | 2020 |
| B&J Scaffolding Ltd | Construction | 2010 |
| B&K Developers Ltd | Real estate | 2020 |
| B&P Metal Work Ltd | Manufacturing | 2019 |
| B&R Construction Services Limited | Construction | 2023 |
| B&R Heathrow Limited | Real estate | 2018 |
| B&R Kalyan Ltd. | Real estate | 2025 |
| B&R Property Investments Ltd | Real estate | 2015 |
| B&T Food and Wine Ltd | Wholesale & retail | 2025 |
| B&W Distributors Limited | Wholesale & retail | 2017 |
| B-Town Bites Ltd | Hospitality | 2026 |
| B. Creative Studios Ltd | Professional & scientific | 2016 |
| B.R.H. & C.O. Limited | Other services | 2019 |
| B.S. Services (Hayes) Limited | Real estate | 2002 |
| B.S.O.C Limited | Education | 2022 |
| B15 Traders Ltd | Wholesale & retail | 2023 |
| B2B Courier Service Limited | Transport & logistics | 2024 |
| B2C Interface Ltd | Hospitality | 2020 |
| B3 Blasting & Coating Ltd | Manufacturing | 2024 |
| B4 DRY Cleaning Limited | Other services | 2001 |
| BA Transfer Ltd | Transport & logistics | 2026 |
| Baaj Construction Ltd. | Construction | 2023 |
| Baaj Haulage Ltd | Transport & logistics | 2026 |
| Baani Creations Ltd | Wholesale & retail | 2025 |
| Baaniraav Limited | Real estate | 2025 |
| Baari Cars Ltd | Transport & logistics | 2023 |
| BAB Touma Supermarket Ltd | Wholesale & retail | 2026 |
| Baba Maanpuri JI Limited | Transport & logistics | 2025 |
| Baba Nanak Construction Limited | Construction | 2020 |
| Baba's Kitchen Ltd | Hospitality | 2026 |
| Babaji Estates Ltd | Real estate | 2025 |
| Babar Investments Ltd | Real estate | 2021 |
| Babbar Accessories Ltd | Wholesale & retail | 2016 |
| Babbar Group Ltd | Wholesale & retail | 2023 |
| Bablue Limited | Wholesale & retail | 2005 |
| Babs Export & Import Ltd | Wholesale & retail | 2020 |
| Babson Estate Services Limited | Real estate | 2014 |
| Babylon Design Studio Ltd | Professional & scientific | 2021 |
| Bachan & Sons Properties Ltd | Real estate | 2020 |