| A a Adil Ltd | Wholesale & retail | 2025 |
| A a Curries in a Hurry Ltd | Hospitality | 2019 |
| A a Empire Ltd | Hospitality | 2019 |
| A a GAS (Midlands) Ltd | Professional & scientific | 2019 |
| A a Jewellers Ltd | Wholesale & retail | 2014 |
| A a Leisures Ltd | Construction | 2017 |
| A a Nails Limited | Health & social care | 2019 |
| A a S Building Solutions Ltd | Construction | 2025 |
| A a Tiling Ltd | Construction | 2020 |
| A Aden Property Ltd | Real estate | 2025 |
| A and a Properties Birmingham Ltd | Real estate | 2023 |
| A and E Joinery Limited | Construction | 2009 |
| A and L Real Estate Ltd | Real estate | 2021 |
| A and M Smith Lettings Limited | Real estate | 2016 |
| A and R Boiler Repair Midlands Ltd | Energy | 2017 |
| A and R Desserts Ltd | Wholesale & retail | 2017 |
| A and R Meats Limited | Manufacturing | 2001 |
| A and T Marketing Limited | Information & communication | 2017 |
| A and T Retail Limited | Wholesale & retail | 2026 |
| A and Z Fashions Ltd | Wholesale & retail | 2021 |
| A Azam Ltd | Health & social care | 2026 |
| A B Auto Repair Ltd | Wholesale & retail | 2026 |
| A B D Haulage Ltd | Transport & logistics | 2020 |
| A B Homes (Coleshill) Ltd | Households | 2022 |
| A B Windows and Home Improvements Ltd | Construction | 2015 |
| A Bailey Plumbing & Heating Ltd | Construction | 2015 |
| A Bains Ltd | Other services | 2017 |
| A Bash Investments Limited | Real estate | 2025 |
| A Best Rice Limited | Hospitality | 2016 |
| A Best Taste Limited | Hospitality | 2022 |
| A Better YOU SB Ltd | Health & social care | 2024 |
| A Bhatia Holding Limited | Financial services | 2026 |
| A BID Holding Ltd | Real estate | 2022 |
| A Book of Portraits C.I.C. | Arts & recreation | 2025 |
| A Bourne & SON Ltd | Wholesale & retail | 2006 |
| A Build Limited | Construction | 2018 |
| A Burden Shared Limited | Administrative & support | 2025 |
| A C (2008) Ltd | Extraterritorial | 2007 |
| A C Glazing Ltd | Construction | 2014 |
| A C Jenner & SON Ltd | Manufacturing | 2002 |
| A C Jenner Holdings Limited | Wholesale & retail | 2013 |
| A C Mcintosh Limited | Health & social care | 2026 |
| A C Nails & Beauty Ltd | Other services | 2020 |
| A C Nwosu UK Ltd | Wholesale & retail | 2016 |
| A Cars Birmingham Ltd | Transport & logistics | 2024 |
| A Cars Wolverhampton Ltd | Transport & logistics | 2025 |
| A Charles Associates Limited | Professional & scientific | 2017 |
| A Class Builders Ltd | Construction | 2025 |
| A Class Music Ltd | Information & communication | 2022 |
| A Clayton Ltd | Health & social care | 2016 |
| A Commercial Property Ltd | Real estate | 2023 |
| A Common Good Limited | Other services | 2016 |
| A Construction Services Limited | Construction | 1998 |
| A Consultants Limited | Manufacturing | 2014 |
| A Courier Services Ltd | Transport & logistics | 2024 |
| A Courtyard Collective Ltd | Wholesale & retail | 2024 |
| A Cube Agate Ltd | Wholesale & retail | 2025 |
| A D & C Manufacturing Limited | Professional & scientific | 2001 |
| A D Enterprise Heating & Plumbing Limited | Construction | 2019 |
| A D I Mechanical Limited | Construction | 1991 |
| A D Interior Solutions Limited | Construction | 2015 |
| A D Mills Building Contractors Limited | Construction | 2013 |
| A D Properties Bham Ltd | Real estate | 2023 |
| A D Surfacing Ltd | Construction | 2011 |
| A D Tyne Ltd | Information & communication | 2016 |
| A Davis Holdings Limited | Financial services | 2019 |
| A Dean Investments Ltd | Real estate | 2023 |
| A DEE KAY Joinery Limited | Manufacturing | 2002 |
| A Desai Properties Limited | Real estate | 2025 |
| A DEY Finance Limited | Professional & scientific | 2012 |
| A Dhall Consulting Limited | Professional & scientific | 2021 |
| A Dhall Properties Ltd | Real estate | 2023 |
| A E Heating Services Limited | Extraterritorial | 2018 |
| A E Ward Limited | Wholesale & retail | 2013 |
| A E Wedding Photography Ltd | Information & communication | 2007 |
| A E Williams (EST 1779) Ltd | Manufacturing | 2017 |
| A Emirates GAS Ltd | Wholesale & retail | 2025 |
| A Evans Electrical Services Ltd | Construction | 2025 |
| A Executive Ltd | Transport & logistics | 2021 |
| A F Homes Ltd | Real estate | 2024 |
| A F J Limited | Wholesale & retail | 2006 |
| A F Properties (Midlands) Ltd | Real estate | 2025 |
| A F Read Limited | Construction | 2024 |
| A Father's Child Services CIC | Education | 2019 |
| A Fusion Sushi Ltd | Hospitality | 2021 |
| A G Operations Limited | Hospitality | 2003 |
| A G Scaffolding Services Ltd | Construction | 2023 |
| A Gleadall Jewellery Ltd | Manufacturing | 2019 |
| A Gold Resourcing Limited | Information & communication | 2025 |
| A Grade Builders Ltd | Construction | 2017 |
| A Griffiths Transports Ltd | Other services | 2019 |
| A GUL Healthcare Limited | Health & social care | 2023 |
| A H M Investments Ltd | Real estate | 2023 |
| A H Midlands Ltd | Construction | 2024 |
| A H Mids Plumbing Limited | Construction | 2026 |
| A Helping Hand Home Care Agency Community Interest Company | Health & social care | 2011 |
| A Hendrie Hairdressing Ltd | Other services | 2019 |
| A Hosey Electrical Services Ltd | Construction | 2017 |
| A Housing Ltd | Real estate | 2021 |
| A Hussain & Sons Properties Ltd | Real estate | 2021 |