| A.Wardle & Company(Casters)Limited | Manufacturing | 1964 |
| A.Weddings Ltd | Information & communication | 2025 |
| A.Y.A Accountants Limited | Professional & scientific | 2011 |
| A.Y.A Cars Ltd | Wholesale & retail | 2019 |
| A.Z Penn Ltd | Wholesale & retail | 2024 |
| A.Z.A Property Investments Ltd | Real estate | 2025 |
| A.Z2 Limited | Wholesale & retail | 2025 |
| A/Delivery Limited | Transport & logistics | 2025 |
| A03 Mechanic Ltd | Wholesale & retail | 2024 |
| A1 Abodes Ltd | Other services | 2023 |
| A1 Assets and Investments Ltd | Real estate | 2024 |
| A1 Auto & Tyre Service Ltd | Wholesale & retail | 2025 |
| A1 Autos & Logistics Ltd | Wholesale & retail | 2017 |
| A1 Builder and Design Ltd | Construction | 2019 |
| A1 Builder Construction Ltd | Construction | 2026 |
| A1 Car Parts Ltd | Transport & logistics | 2023 |
| A1 Care Professionals Limited | Health & social care | 2014 |
| A1 Carpets Ltd | Wholesale & retail | 2008 |
| A1 Chemicals Ltd | Wholesale & retail | 2024 |
| A1 Clutches City Limited | Wholesale & retail | 2014 |
| A1 Concrete MIX Ltd | Manufacturing | 2021 |
| A1 Convenience Ltd | Wholesale & retail | 2019 |
| A1 Demolition Limited | Construction | 2010 |
| A1 Driveways Bham Limited | Construction | 2021 |
| A1 Electric Car Parts Ltd. | Wholesale & retail | 2020 |
| A1 Embroidery Limited | Wholesale & retail | 2016 |
| A1 Energy Services Ltd | Construction | 2021 |
| A1 Executive Transport Ltd | Transport & logistics | 2025 |
| A1 Extraction Systems Limited | Manufacturing | 2021 |
| A1 Global Holding (UK) Ltd | Administrative & support | 2017 |
| A1 Grand Events Ltd | Hospitality | 2025 |
| A1 Hallmark Invests Limited | Real estate | 2018 |
| A1 Hardware Ltd | Wholesale & retail | 2022 |
| A1 Health Treatments Ltd | Other services | 2026 |
| A1 Installers Ltd | Construction | 2024 |
| A1 Interiors Direct Limited | Construction | 2002 |
| A1 IT Services Ltd | Information & communication | 2025 |
| A1 Joinery Bham Limited | Manufacturing | 2014 |
| A1 Letting Services Ltd. | Real estate | 2012 |
| A1 Motor Engineering Ltd | Wholesale & retail | 2009 |
| A1 Motor Grand Ltd | Wholesale & retail | 2016 |
| A1 Motor Spares Ltd | Wholesale & retail | 2008 |
| A1 Networking Limited | Information & communication | 2022 |
| A1 New Home Services Ltd | Administrative & support | 2018 |
| A1 Optical Ltd | Health & social care | 2021 |
| A1 Pallets Ltd | Manufacturing | 2026 |
| A1 Plastics Midlands Ltd | Water & waste | 2025 |
| A1 PM Services Ltd | Professional & scientific | 2025 |
| A1 Prawns Birmingham Limited | Hospitality | 2025 |
| A1 Properties (Hockley Heath) Ltd | Real estate | 2014 |
| A1 Properties (UK) Limited | Real estate | 2006 |
| A1 Properties Management Limited | Real estate | 2020 |
| A1 Property Investments (Bham) Ltd | Real estate | 2020 |
| A1 Relocation Experts Ltd | Real estate | 2024 |
| A1 Roof Renovate Ltd | Construction | 2024 |
| A1 Saveway Limited | Hospitality | 2003 |
| A1 Security Print Limited | Manufacturing | 1933 |
| A1 Service Station Limited | Wholesale & retail | 2013 |
| A1 Shisha Shop Ltd | Wholesale & retail | 2025 |
| A1 Support Limited | Health & social care | 2012 |
| A1 Tax-Efficient Strategies Ltd | Professional & scientific | 2024 |
| A1 Top JOB Ltd | Construction | 2017 |
| A1 Top JOB Maitenance Ltd | Construction | 2020 |
| A1 Traders Ltd | Wholesale & retail | 2021 |
| A1 Training Services Limited | Transport & logistics | 2018 |
| A1 Tyre Shop Ltd | Wholesale & retail | 2021 |
| A1 Tyres 4 U Limited | Wholesale & retail | 2026 |
| A1 Value ADD Limited | Hospitality | 2019 |
| A1 Vehicle Rentals Limited | Administrative & support | 2018 |
| A14TECH Ltd | Manufacturing | 2023 |
| A1KAM Investment Ltd | Real estate | 2023 |
| A1SECURITYVIP Ltd | Administrative & support | 2022 |
| A1STAR Limited | Wholesale & retail | 2025 |
| A1TCO Limited | Administrative & support | 2026 |
| A1TYRESSTIRCHLEY Ltd | Wholesale & retail | 2019 |
| A1X3 Assets (Holding) Limited | Financial services | 2024 |
| A1XPART Ltd | Information & communication | 2025 |
| A2 Aluminium Solutions Ltd | Construction | 2025 |
| A2 Automotives Ltd | Wholesale & retail | 2022 |
| A2 Flavours Ltd | Hospitality | 2025 |
| A2 Healthcare Solutions Limited | Health & social care | 2024 |
| A2 Housing Limited | Real estate | 2025 |
| A20 Properties Ltd | Real estate | 2023 |
| A20 Property Group Limited | Real estate | 2025 |
| A247 Staff Ltd | Administrative & support | 2025 |
| A2A Yachting Ltd | Administrative & support | 2011 |
| A2B Delivery Solutions Limited | Transport & logistics | 2024 |
| A2B Freight Services Ltd | Transport & logistics | 2025 |
| A2B Logistiks Ltd | Transport & logistics | 2023 |
| A2B New Home Ltd | Real estate | 2023 |
| A2B Parcels and Packages Ltd | Administrative & support | 2026 |
| A2B Shopping Ltd | Wholesale & retail | 2012 |
| A2B Social Housing Limited | Real estate | 2025 |
| A2B Taxi Hire Ltd | Administrative & support | 2025 |
| A2B Trade Ltd | Wholesale & retail | 2022 |
| A2B Trading Ltd | Wholesale & retail | 2026 |
| A2B Van Couriers Ltd | Administrative & support | 2024 |
| A2B Worldwide Logistics Ltd | Transport & logistics | 2019 |
| A2B2YOU Property Services Ltd | Construction | 2025 |
| A2BX Trading Limited | Wholesale & retail | 2019 |