| Ayres Athletics Ltd | Health & social care | 2022 |
| Ayreville Orchard Ltd | Wholesale & retail | 2024 |
| Aysgarth Enterprise Ltd | Transport & logistics | 2014 |
| Aystech Ltd | Professional & scientific | 2024 |
| Ayston Properties Limited | Real estate | 2021 |
| Ayston Road Store Limited | Wholesale & retail | 2021 |
| Aytoo Ltd | Health & social care | 2011 |
| Ayur Herbal Clinic UK Ltd | Health & social care | 2024 |
| Ayur Kerala Clinic Ltd | Other services | 2015 |
| Ayurintel Health Ltd | Professional & scientific | 2026 |
| AYX Removals Limited | Wholesale & retail | 2026 |
| AYZ Growth Ltd | Real estate | 2023 |
| AZ Electrotech Ltd | Wholesale & retail | 2021 |
| AZA Mechanics Limited | Wholesale & retail | 2022 |
| Azaan Halal Butcher Ltd Limited | Wholesale & retail | 2023 |
| Azaan Smart Study Ltd. | Education | 2015 |
| Azad Payroll Ltd | Administrative & support | 2017 |
| Azadi Cash and Carry Ltd | Wholesale & retail | 2016 |
| Azar Tradre Ltd | Wholesale & retail | 2022 |
| Azash Limited | Information & communication | 2023 |
| Azatu Limited | Wholesale & retail | 2025 |
| AZD Trading Ltd | Hospitality | 2022 |
| Azete Ltd | Arts & recreation | 2022 |
| Azhari Trading Limited | Wholesale & retail | 2022 |
| Azicrow Media Limited | Professional & scientific | 2021 |
| Azon Global Limited | Wholesale & retail | 2021 |
| Azore's Boutique Ltd | Other services | 2011 |
| Azou Studio Ltd | Professional & scientific | 2024 |
| Azra Burgers Limited | Hospitality | 2022 |
| Azra Marketing Ltd | Administrative & support | 2025 |
| Azrafurniture Ltd | Wholesale & retail | 2025 |
| Azrah Ltd | Wholesale & retail | 2023 |
| AZS Flooring & Building Ltd | Construction | 2025 |
| Azsa Group Limited | Wholesale & retail | 2025 |
| AZT Trading Limited | Administrative & support | 2015 |
| Aztec Consultancy Limited | Wholesale & retail | 2024 |
| Aztec Development Limited | Wholesale & retail | 2022 |
| Aztec Interiors (Leicester) Limited | Manufacturing | 2004 |
| Aztec Online Services Limited | Wholesale & retail | 2024 |
| Aztrix Media Ltd | Information & communication | 2025 |
| Azur Media Ltd | Information & communication | 2024 |
| Azwan Textiles Ltd | Wholesale & retail | 2026 |
| Azza & Co. Trading Ltd | Wholesale & retail | 2023 |
| Azzenir Ltd | Manufacturing | 2015 |
| Azzer Digital Ltd | Information & communication | 2024 |
| Azzure International Ltd. | Professional & scientific | 2016 |
| Azzuro Properties Limited | Real estate | 2016 |
| B & a Construction (Leicester) Limited | Construction | 1982 |
| B & a Construction Holdings Limited | Financial services | 2021 |
| B & B Taylor Ltd | Construction | 2014 |
| B & C Bars Ltd | Hospitality | 2022 |
| B & D (Leicester) Limited | Construction | 2025 |
| B & G Property Management Ltd | Real estate | 2014 |
| B & K Co-Ordinator and Retail Sales Limited | Health & social care | 2026 |
| B & K Properties Ltd | Real estate | 2012 |
| B & P Fabrications Limited | Professional & scientific | 2015 |
| B & S (Leicester) Limited | Wholesale & retail | 2002 |
| B & S Alliance Limited | Real estate | 2018 |
| B & T Outlet Ltd | Wholesale & retail | 2025 |
| B & V Logistics Ltd | Transport & logistics | 2021 |
| B - B'S Cafe Ltd | Hospitality | 2024 |
| B a Pharmassist Ltd | Health & social care | 2015 |
| B a Taxi Ltd | Transport & logistics | 2024 |
| B and C Teamwork Limited | Health & social care | 2018 |
| B and D Daughters PVT Ltd | Wholesale & retail | 2026 |
| B and J Roofing Ltd | Construction | 2021 |
| B Asante Shipping Ltd | Transport & logistics | 2025 |
| B C Irwin Ltd | Wholesale & retail | 2003 |
| B Duncan Roofing Limited | Construction | 2013 |
| B E Consultants Ltd | Arts & recreation | 2026 |
| B G Tea Rooms Ltd | Wholesale & retail | 2021 |
| B Glam Studio Ltd | Other services | 2020 |
| B Glover Holdings Ltd | Financial services | 2026 |
| B Green Ltd | Extraterritorial | 2026 |
| B H D Management Services Limited | Professional & scientific | 2005 |
| B H Travels Ltd | Transport & logistics | 2024 |
| B Hire Ltd | Administrative & support | 2023 |
| B Holland Builders Limited | Construction | 2020 |
| B Inspire D Homes Ltd | Construction | 2019 |
| B J Evans Accountancy Services Co Limited | Financial services | 2014 |
| B J Properties Leicester Ltd | Real estate | 2025 |
| B J S Skips Ltd | Other services | 2019 |
| B J Stores Ltd | Wholesale & retail | 2013 |
| B K Financial Solutions Ltd | Professional & scientific | 2010 |
| B K Transport Ltd | Transport & logistics | 2024 |
| B K Travel Agency Ltd | Hospitality | 2018 |
| B K Vara Pharma Ltd | Professional & scientific | 2020 |
| B LEE & Sons Metals Limited | Water & waste | 2014 |
| B M Fashions (Holdings) Limited | Manufacturing | 1999 |
| B M Fashions (Properties) Limited | Real estate | 2022 |
| B M G Cleaning Services Limited | Administrative & support | 2013 |
| B M Home Solutions Ltd | Real estate | 2014 |
| B Midzi Ltd | Health & social care | 2025 |
| B P Legal Solicitors Limited | Professional & scientific | 2014 |
| B Patel Investments Ltd | Real estate | 2021 |
| B Paul Limited | Real estate | 2012 |
| B R Granby Ltd | Hospitality | 2026 |
| B Secure Solutions Ltd | Administrative & support | 2014 |
| B Singh Builder Ltd | Construction | 2023 |
| B Squared Consultancy Ltd | Professional & scientific | 2009 |