| Aladdins Cave of Worcester Ltd | Wholesale & retail | 2015 |
| Alan Commercial Finance Ltd | Professional & scientific | 2017 |
| Alarm 2000 Ltd | Manufacturing | 2012 |
| Alaya Creative Media Ltd | Information & communication | 2025 |
| Albany Grange Ltd | Professional & scientific | 2009 |
| Albers Mercantile Limited | Wholesale & retail | 2025 |
| Albert Potter Timber Merchants Ltd | Wholesale & retail | 2015 |
| Albert's Law Group Limited | Professional & scientific | 2024 |
| Albion Motion Company Limited | Wholesale & retail | 2020 |
| ALC Earthworks Ltd | Construction | 2021 |
| Alcea Consultancy Limited | Administrative & support | 2019 |
| Alcester Tools Limited | Administrative & support | 2021 |
| Alder Services Ltd | Other services | 2015 |
| Aldes NO1 Limited | Construction | 2012 |
| Aldridge Property & Investment Company Limited | Real estate | 1958 |
| Aldridge Solutions Ltd | Manufacturing | 2020 |
| Alessia Import-Export Ltd | Wholesale & retail | 2019 |
| Alex Gooch Ltd | Hospitality | 2021 |
| Alex Pro Construct Limited | Construction | 2026 |
| Alex Removals Ltd | Transport & logistics | 2018 |
| Alex Wallis Sales Ltd | Professional & scientific | 2025 |
| Alexander & Associates Limited | Real estate | 1974 |
| Alexander Alderton Limited | Construction | 1973 |
| Alexander Home Improvements (Worcester) Ltd | Construction | 2025 |
| Alexander James Recruiting Ltd. | Administrative & support | 2016 |
| Alexandra Henry Limited | Manufacturing | 2009 |
| Alexandra Kaleniuk Immigration Consulting Ltd | Professional & scientific | 2022 |
| Alexstrat Ltd | Information & communication | 2025 |
| Algoeclipse Ltd | Information & communication | 2023 |
| ALI View Estates Ltd | Real estate | 2024 |
| Alian's CNC Ltd | Manufacturing | 2022 |
| Aliarschco Limited | Wholesale & retail | 2024 |
| Alice Mayor Consultancy Ltd | Professional & scientific | 2021 |
| Alidan Retail Limited | Wholesale & retail | 2026 |
| ALK (Worcester) Limited | Hospitality | 2023 |
| Alkali Solutions Ltd | Manufacturing | 2014 |
| ALL & Everything R & D Ltd | Wholesale & retail | 2022 |
| ALL About Freight Limited | Transport & logistics | 2014 |
| ALL and Everything Group Ltd | Wholesale & retail | 2019 |
| ALL England Dance | Education | 2017 |
| ALL for Nothing Limited | Professional & scientific | 2025 |
| ALL Round Cleaning Services Ltd | Administrative & support | 2023 |
| ALL Seasons Coaching Ltd | Other services | 2025 |
| All-Ways Custom Logistics Ltd | Transport & logistics | 2020 |
| Allan Morris Lettings LLP | | 2008 |
| Allan Morris Worcestershire Limited | Real estate | 2010 |
| Allbritain Construction Limited | Construction | 2011 |
| Allbritain Developments Limited | Extraterritorial | 2016 |
| Allbritain Estates Limited | Extraterritorial | 2016 |
| Allbritain Holdings Limited | Financial services | 2022 |
| Allbritain Investments Limited | Real estate | 2016 |
| Allbritain Property Developments Limited | Real estate | 2016 |
| Allbritain Property Solutions Limited | Real estate | 2016 |
| Allchurch Property Lawyers Limited | Professional & scientific | 2015 |
| Allen Construction Midlands Limited | Construction | 2020 |
| Allen Gearing Solutions Limited | Manufacturing | 2008 |
| Allen Hydraulic Engineering Limited | Manufacturing | 2003 |
| Allergy Shop Ltd | Financial services | 2019 |
| Allgreen Contracting Limited | Construction | 2003 |
| Alliance Flooring Distribution Limited | Transport & logistics | 2005 |
| Allies Property Limited | Real estate | 2023 |
| Allocore Ltd | Professional & scientific | 2018 |
| Allteko Limited | Administrative & support | 2006 |
| Allured Limited | Professional & scientific | 2023 |
| Allvalve Online Ltd | Extraterritorial | 2012 |
| Allvalves Online Limited | Administrative & support | 2010 |
| ALM Fitness Ltd | Other services | 2018 |
| Almira Estates Ltd | Construction | 2021 |
| ALN Holdings Limited | Financial services | 2024 |
| Alpa Electrical Services Limited | Construction | 2016 |
| Alpaca Feed Supplies Limited | Wholesale & retail | 2026 |
| Alpas Properties Ltd | Real estate | 2023 |
| Alpha Polaris Limited | Wholesale & retail | 2025 |
| Alpha Tank Services Limited | Construction | 2002 |
| Alphabet Industries Limited | Professional & scientific | 2012 |
| Alphagy Limited | Manufacturing | 2017 |
| Alphasecure Solutions Ltd | Administrative & support | 2025 |
| ALT - Energi Services Ltd | Construction | 2017 |
| ALT - Solar Limited | Manufacturing | 2019 |
| ALT Group UK Holdings Limited | Financial services | 2022 |
| ALT View Productions Ltd | Information & communication | 2025 |
| Alt-Group Holdco Ltd | Professional & scientific | 2026 |
| Alt-Group Services Limited | Wholesale & retail | 2019 |
| ALT-PPA1 Limited | Construction | 2021 |
| Altafs Property Lets Limited | Real estate | 2018 |
| Altafsbalti Limited | Hospitality | 2019 |
| Alter Landscaping & Property Maintenance Ltd | Administrative & support | 2025 |
| Alternative Aesthetics Worcester Ltd | Extraterritorial | 2025 |
| Altiom Limited | Construction | 2011 |
| Altitude (Dorking 1) Limited | Real estate | 2017 |
| Alto 5 Limited | Financial services | 2018 |
| Altofloor (Malvern) Limited | Construction | 2023 |
| Alton Family Investments Ltd | Real estate | 2007 |
| Alumichem UK Ltd | Manufacturing | 2024 |
| Alyi One Property Ltd | Real estate | 2025 |
| Alyi Property Ltd | Real estate | 2025 |
| AM Electrical (UK) Limited | Construction | 2012 |
| Amanda Levete Architects Limited | Professional & scientific | 2014 |
| Amanda Robson Care Ltd | Health & social care | 2018 |
| Amara Collaboration UK Limited | Professional & scientific | 2017 |