| Adnation Media Ltd | Professional & scientific | 2017 |
| ADP (Worcester) Limited | Real estate | 2018 |
| ADP Landscape Architects Ltd | Professional & scientific | 2020 |
| ADR Accident Repair Centres Limited | Wholesale & retail | 1990 |
| ADR Express Ltd | Transport & logistics | 2003 |
| Adrian Edwards Limited | Wholesale & retail | 1999 |
| Adrian Goodyear Limited | Other services | 2004 |
| Adriano V L Pro Construct Limited | Construction | 2026 |
| Adroit Design & Build Ltd | Manufacturing | 2023 |
| Adroit Oak & Timber Frames Ltd | Construction | 2025 |
| Adserve Limited | Information & communication | 2017 |
| Adsolve Ltd | Wholesale & retail | 2020 |
| Adtrac Limited | Wholesale & retail | 2018 |
| Advance Staff Ltd | Administrative & support | 2021 |
| Advanced Business Software Limited | Information & communication | 2003 |
| Advanced Business Software UK Ltd | Information & communication | 2022 |
| Advanced CNC Services Limited | Manufacturing | 2005 |
| Advanced Group Global Holdings Ltd | Manufacturing | 2017 |
| Advanced Manufacturing Development Services Limited | Professional & scientific | 2001 |
| Advanced NDT Limited | Wholesale & retail | 2006 |
| Advanced Pump and Hydro Systems Limited | Water & waste | 2017 |
| Advanced Wastewater Treatment Ltd | Water & waste | 2017 |
| Advantage Window Solutions Ltd | Construction | 2018 |
| Advape Limited | Wholesale & retail | 2017 |
| AEI Power Cables Limited | Manufacturing | 2010 |
| Aerials & Sky Local Ltd | Construction | 2014 |
| Aero City Group Limited | Arts & recreation | 2003 |
| Aeromet Holdings Ltd | Financial services | 2015 |
| Aeromet International Limited | Manufacturing | 1982 |
| Aerosprite Informatics Limited | Professional & scientific | 2017 |
| Aerovector Consulting Ltd | Information & communication | 2026 |
| Aesthetic Medical Partnership Limited | Other services | 2023 |
| Aesthetics by Melanie Jane Ltd | Other services | 2020 |
| AEY Distribution Limited | Wholesale & retail | 2025 |
| Affiliate CRM Ltd | Information & communication | 2026 |
| AFG 2022 Limited | Financial services | 2022 |
| Afservicesworcester Ltd | Construction | 2024 |
| Afterclad Ltd | Construction | 2021 |
| AG Surface Repair Specialist Ltd | Manufacturing | 2022 |
| AGA Orgee Limited | Real estate | 2019 |
| Agape Transport Services Ltd | Transport & logistics | 2023 |
| Agar Limited | Manufacturing | 1975 |
| Agar Stone Ltd | Wholesale & retail | 2021 |
| Agate Resources Ltd | Other services | 2017 |
| AGB Couriers Limited | Transport & logistics | 2026 |
| AGE Concern Herefordshire & Worcestershire | Education | 2000 |
| AGE UK Malvern and District | Health & social care | 2011 |
| AGE UK Worcester, Malvern Hills & Hereford Localities | Health & social care | 2006 |
| Agent Extra Ltd | Professional & scientific | 2016 |
| Agile Operations Ltd | Professional & scientific | 2025 |
| Agile Projects and Engineering Limited | Professional & scientific | 2020 |
| Agnes Debbah Care Ltd | Health & social care | 2023 |
| Agreed Direction Limited | Professional & scientific | 2011 |
| Agrievents Limited | Information & communication | 2025 |
| Agrotera Limited | Administrative & support | 2024 |
| AH Business Consultants Ltd | Professional & scientific | 2015 |
| AH Civils and Groundworks Ltd | Construction | 2023 |
| AH Services (Worcestershire) Limited | Wholesale & retail | 2025 |
| Ah&R Leisure Ltd | Hospitality | 2025 |
| AHE Ltd | Information & communication | 2018 |
| Ahead AHEAD2 Ltd | Real estate | 2026 |
| AHK Consulting Services Limited | Professional & scientific | 2011 |
| AHK Property Consulting Services Limited | Real estate | 2016 |
| AHM Couriers Limited | Transport & logistics | 2023 |
| AHN Poyser Properties Ltd | Real estate | 2025 |
| Ahst Properties Ltd | Real estate | 2022 |
| AI 4 the Future Limited | Health & social care | 2021 |
| AI Secretary Limited | Information & communication | 2026 |
| Aiah Properties Ltd | Professional & scientific | 2021 |
| AIC Consultancy Limited | Information & communication | 2016 |
| Aidan Thompson Consulting Ltd | Administrative & support | 2009 |
| AIG Consultancy Limited | Construction | 2018 |
| AIM Medical Robotics Inc. | | 2021 |
| Aimee Cringle Limited | Arts & recreation | 2025 |
| Aiming High Limited | Health & social care | 2013 |
| Air Spectrum Environmental Limited | Manufacturing | 1994 |
| Air Spectrum International Limited | Manufacturing | 2016 |
| Airey Limited | Wholesale & retail | 2003 |
| Airheat Ltd | Energy | 2010 |
| Airora Investments Limited | Real estate | 2016 |
| Airora Tansells Limited | Wholesale & retail | 2003 |
| Aiveen Interiors Ltd. | Professional & scientific | 2007 |
| AJ Information Technology Consultancy Ltd | Information & communication | 2017 |
| AJA Properties Limited | Real estate | 2019 |
| AJA Transport Ltd | Transport & logistics | 2008 |
| Ajgp Ltd | Real estate | 2024 |
| AJR Electrics Ltd | Construction | 2024 |
| Ajsh Consulting Ltd | Professional & scientific | 2011 |
| AK Motorhouse Ltd | Wholesale & retail | 2025 |
| AK Transport Group Ltd | Transport & logistics | 2023 |
| Akaash Property Lets Limited | Real estate | 2023 |
| Akbar Travels Ltd | Transport & logistics | 2025 |
| AKE International Ltd | Administrative & support | 2009 |
| AKE Limited | Professional & scientific | 2002 |
| AKE Maritime Limited | Professional & scientific | 2012 |
| Akhtarp Limited | Real estate | 2025 |
| AKN Property Limited | Real estate | 2021 |
| AKR Business Solutions Ltd | Administrative & support | 2026 |
| Akub Partners Limited | Hospitality | 2022 |
| Akub Restaurant Limited | Hospitality | 2020 |