| Atlantic Bridge Exchange Ltd | Professional & scientific | 2026 |
| Atlas Engineering Consultancy Ltd | Professional & scientific | 2023 |
| Atman International Ltd | Professional & scientific | 2023 |
| Atnd Services Limited | Other services | 2020 |
| Attain Group Limited | Professional & scientific | 1999 |
| ATW Investments Limited | Administrative & support | 2016 |
| AU Bleu Ltd | Wholesale & retail | 2019 |
| Aubergine Occasionwear Limited | Wholesale & retail | 2014 |
| Auboris | Professional & scientific | 2026 |
| Audience Intelligence Limited | Information & communication | 2026 |
| Audio Visual Installation Team.Uk Ltd | Professional & scientific | 2020 |
| Audit Ready Hygiene Solutions Ltd | Administrative & support | 2017 |
| Aura Goods Ltd | Wholesale & retail | 2026 |
| Auraium Corporation Limited | Information & communication | 2024 |
| Auralya Ltd | Professional & scientific | 2025 |
| Aurelia Consultancy Ltd | Administrative & support | 2025 |
| Aurelica Limited | Information & communication | 2019 |
| Aurocend | Professional & scientific | 2025 |
| Austin Williams Property Developments Limited | Real estate | 2024 |
| Authenticated by Ltd | Wholesale & retail | 2019 |
| Auto Master Garage Ltd | Wholesale & retail | 2026 |
| Auto Recycle Ltd | Wholesale & retail | 2025 |
| Auto Time Systems Northern Limited | Information & communication | 2003 |
| Autobodymasters Ltd | Construction | 2024 |
| Automated Trader Limited | Information & communication | 2025 |
| Automated Trading Limited | Information & communication | 2025 |
| Automateoptimise Limited | Professional & scientific | 2025 |
| Automatic Trader Limited | Information & communication | 2025 |
| Automatic Trading Limited | Information & communication | 2025 |
| Automotive Climate Solutions Limited | Wholesale & retail | 2024 |
| Automyze Controls Ltd | Professional & scientific | 2025 |
| Autonomous Trader Limited | Information & communication | 2025 |
| Autoquality Wigan Group Limited | Financial services | 2022 |
| Autoquality Wigan Holdings Limited | Financial services | 2015 |
| Autoquality Wigan Limited | Wholesale & retail | 2014 |
| Autos in Motion Ltd | Transport & logistics | 2012 |
| Autraso | Professional & scientific | 2023 |
| Auxilia Ltd | Professional & scientific | 2015 |
| Avalon Healthcare Ltd | Other services | 2024 |
| Avamco Limited | Professional & scientific | 2013 |
| Avanti Travel Ltd | Administrative & support | 2017 |
| Avato Ltd | Extraterritorial | 2021 |
| Avenue Design and Build Limited | Construction | 2020 |
| Averinus | Professional & scientific | 2025 |
| Avezo Limited | Transport & logistics | 2023 |
| AVIATIONWORLD360 Limited | Manufacturing | 2024 |
| Avid Estates Ltd | Real estate | 2026 |
| Avid Sweets Limited | Wholesale & retail | 2023 |
| AVJ Testing Ltd | Professional & scientific | 2026 |
| AW Bouncy Castle Hire Ltd | Arts & recreation | 2014 |
| AW Telecoms Associates Limited | Professional & scientific | 2023 |
| Awaken Codes Ltd | Professional & scientific | 2026 |
| Awaken the Lion CIC | Information & communication | 2025 |
| Aware Communications Ltd | Professional & scientific | 2014 |
| Awaygoal Tours Ltd | Administrative & support | 2024 |
| Awnish & Riana OFF License Wigan Limited | Wholesale & retail | 2025 |
| Axion Electrical Services Ltd | Construction | 2022 |
| Axol Services Ltd | Construction | 2019 |
| Axomyth Ltd | Manufacturing | 2026 |
| AYA 25 Limited | Wholesale & retail | 2026 |
| AYA 26 Farmhouse Ltd | Wholesale & retail | 2026 |
| Ayobammy & Co Limited | Health & social care | 2015 |
| AZ Postal Services Ltd | Transport & logistics | 2024 |
| Azadi Barber Lounge Ltd | Other services | 2021 |
| Azentra Digital Limited | Information & communication | 2025 |
| Azizi Media Limited | Information & communication | 2002 |
| Aztech Electrical Services Ltd | Construction | 2022 |
| Aztek Electrical Solutions Ltd | Construction | 2018 |
| Aztek Properties Ltd | Real estate | 2020 |
| Azuolas & Ugne Ltd | Transport & logistics | 2023 |
| Azzurri Accounting Services Limited | Professional & scientific | 2016 |
| Azzurri Property Holdings Ltd | Professional & scientific | 2019 |
| B & C Furniture (Trade Surplus) Limited | Wholesale & retail | 1986 |
| B & H Property North West Limited | Real estate | 2020 |
| B & P Reid Holdings Ltd | Professional & scientific | 2021 |
| B & S Croft Investments Limited | Real estate | 2024 |
| B & S Croft Limited | Arts & recreation | 2023 |
| B a Berry Building Ltd | Construction | 2018 |
| B a Berry Building Solutions Ltd | Construction | 2026 |
| B C Watkinsons Joinery Ltd | Construction | 2025 |
| B J Mcnamee (Holdings) Limited | Financial services | 2014 |
| B J Mcnamee Ltd | Construction | 2003 |
| B K W Joinery Limited | Construction | 2022 |
| B Lears (Woodshavings) Ltd | Agriculture & fishing | 2005 |
| B MC Elchare Ltd | Transport & logistics | 2014 |
| B Secure (North West) Limited | Administrative & support | 2008 |
| B T C Freight Ltd | Transport & logistics | 2024 |
| B Warm Ltd | Construction | 2025 |
| B&P Asset Management Ltd | Professional & scientific | 2026 |
| B&W Plumbing and Heating Services Ltd | Construction | 2025 |
| B'S Craft Hive Ltd | Manufacturing | 2023 |
| B-17 Projects Ltd | Construction | 2026 |
| B-40 Property Management Limited | Real estate | 2025 |
| B. C. Electrical Contractors Limited | Construction | 1999 |
| B. Dixon Music Services Ltd | Arts & recreation | 2023 |
| B. Wilkinson Roofing Limited | Construction | 2022 |
| B.A.D INK Ltd | Other services | 2025 |
| B.L.S. Foods Limited | Manufacturing | 2009 |
| B.T. O'Sullivan Construction Solutions Limited | Construction | 2013 |
| B2B Develop IT Ltd | Information & communication | 2020 |