| Anca Transport Ltd | Transport & logistics | 2025 |
| Ancuta Lacatusu Cleaning Ltd | Administrative & support | 2024 |
| AND BE Property Ltd | Real estate | 2025 |
| Anderson Ashton Holdings Ltd | Real estate | 2020 |
| Anderson Hill Property Ltd | Real estate | 2022 |
| Andlorn Investments Ltd | Financial services | 2026 |
| Andlorn Ltd | Real estate | 2013 |
| Andor Care Solution Ltd | Health & social care | 2013 |
| Andrew Cook Accounting Limited | Professional & scientific | 2019 |
| Andrew Tabberer Property Ltd | Real estate | 2020 |
| Andrews Property Maintenance UK Ltd | Construction | 2016 |
| Angela Soong Holdings Ltd | Hospitality | 2024 |
| Angela Soong Wellness Centre Limited | Health & social care | 2024 |
| Angelique Health Supplies and Services Limited | Health & social care | 2017 |
| Anglo Italian Holdings Inc Limited | Professional & scientific | 2013 |
| Anglo Italian Properties Limited | Wholesale & retail | 2002 |
| Anglo-Caledonian Controls Limited | Professional & scientific | 2017 |
| ANH Foods Ltd | Wholesale & retail | 2023 |
| Ankav Properties Limited | Real estate | 2004 |
| Annaa Ltd | Real estate | 2021 |
| Annabel Wade Limited | Professional & scientific | 2016 |
| Annabel's Country Canines Limited | Other services | 2019 |
| Annie Magik Ltd | Hospitality | 2023 |
| Annivera Investments Ltd | Real estate | 2025 |
| Ansell Environmental Ltd | Professional & scientific | 2023 |
| Antbon Holdings Limited | Financial services | 2022 |
| Antolin Interiors Services Limited | Other services | 2015 |
| Antolin Interiors UK Limited | Manufacturing | 1982 |
| Anubis Development Limited | Professional & scientific | 2006 |
| Aoha Limited | Manufacturing | 2022 |
| AOS Mechanical Limited | Administrative & support | 2014 |
| Aothira Trade Ltd | Wholesale & retail | 2025 |
| AP Leasing Ltd | Administrative & support | 2023 |
| AP Morgan Group Limited | Financial services | 2013 |
| AP Morgan Limited | Real estate | 2007 |
| AP SD Fifty Three Limited | Wholesale & retail | 2025 |
| AP SD Thirty SIX Limited | Wholesale & retail | 2025 |
| Ap's Sweeper Limited | Transport & logistics | 2019 |
| Apex Automation Services Ltd | Other services | 2026 |
| Apex Enterprise (Midlands) Ltd | Other services | 2024 |
| Apex Fire Limited | Construction | 2021 |
| Apex Lighting Limited | Wholesale & retail | 2023 |
| Apex Moto X Worcester Limited | Arts & recreation | 2008 |
| Apex Motorsales Ltd | Wholesale & retail | 2025 |
| Apex Retail & Supplies Ltd | Wholesale & retail | 2026 |
| Apollo Scaffolding Ties Limited | Construction | 2013 |
| Apollo Tying Systems and Training Solutions Limited | Wholesale & retail | 2013 |
| Appletree Guest House Ltd | Hospitality | 2023 |
| Appletree Services Limited | Information & communication | 2015 |
| Appley Services Limited | Administrative & support | 2025 |
| Applied Functional Materials Limited | Manufacturing | 2002 |
| Approved Tree & Landscaping Ltd | Administrative & support | 2025 |
| Apptrack Limited | Information & communication | 2026 |
| Appzia TEC Solutions Ltd | Information & communication | 2025 |
| APW Peter Williams Ltd | Other services | 2018 |
| AQ Vehicles Ltd | Wholesale & retail | 2022 |
| Aquatide (Midlands) Limited | Other services | 1995 |
| AR Electrical Work Ltd | Manufacturing | 2019 |
| Arbe Telecommunications Ltd | Professional & scientific | 2025 |
| Arbitect Limited | Professional & scientific | 2022 |
| Arden Bridge Services Ltd | Wholesale & retail | 2019 |
| Arden Build (Midlands) Ltd | Construction | 2023 |
| Arden ELM Ltd | Construction | 2025 |
| Arden Estates Barnt Green Ltd | Real estate | 2002 |
| Arden Estates Bromsgrove Ltd | Real estate | 2012 |
| Arden Estates Midlands Ltd | Real estate | 2013 |
| Arden Estates Redditch Ltd | Real estate | 2010 |
| Arden Estates Rubery Ltd | Real estate | 2014 |
| Arden Estates Shirley Limited | Real estate | 2021 |
| Arden Estates Worcester LLP | | 2020 |
| Arden Heating Limited | Professional & scientific | 2010 |
| Arden Home Staging & Property Services Limited | Real estate | 2017 |
| Arden Midlands Corporation Limited | Administrative & support | 2019 |
| Arden Motors Ltd | Wholesale & retail | 2025 |
| Ardenoak Homes (Mercia) Ltd | Construction | 2023 |
| Ardenoak Homes Ltd | Construction | 2023 |
| Ardens Management Ltd | Wholesale & retail | 2024 |
| Ardent Projects Limited | Construction | 2025 |
| Arfan Chohan Limited | Wholesale & retail | 2024 |
| Argo Fire & Security Limited | Administrative & support | 2019 |
| Arisyn Ltd | Information & communication | 2025 |
| Arjr Properties Limited | Real estate | 2017 |
| ARK Carpentry Contractors Limited | Manufacturing | 2023 |
| Arkade Property Limited | Real estate | 2005 |
| Arkinson TM Ltd | Construction | 2023 |
| Arkle Engineering Limited | Manufacturing | 1983 |
| Arktiz Digital Ltd | Wholesale & retail | 2023 |
| Arochan Holdings Limited | Real estate | 2025 |
| Array Media Production Ltd | Information & communication | 2022 |
| Arrd Distribution Ltd | Wholesale & retail | 2025 |
| Arrow Consultancy Limited | Professional & scientific | 2014 |
| Arrow Garage Limited | Wholesale & retail | 2006 |
| Arrow Taverns Ltd | Hospitality | 2022 |
| Arrow Taxis Redditch Ltd | Transport & logistics | 2025 |
| ARS Logistics Ltd | Transport & logistics | 2025 |
| Arsh Taxis Ltd | Transport & logistics | 2020 |
| Art Properties Redditch Ltd | Real estate | 2019 |
| Arte Investments Limited | Real estate | 2025 |
| Arthur George Associates Limited | Financial services | 2013 |
| Arthur Street (Redditch) Management Limited | Households | 1994 |