| 3 Engineering Limited | Administrative & support | 2017 |
| 3AVA Holdings Ltd | Financial services | 2024 |
| 4 Events UK Ltd | Arts & recreation | 2021 |
| A & PR Properties Limited | Real estate | 2019 |
| A & S Living Limited | Extraterritorial | 2021 |
| A and R Rothen Limited | Administrative & support | 2009 |
| A Kelsey Construction Limited | Construction | 2018 |
| A Star Laundry & Ironing Service Ltd | Other services | 2011 |
| A.G.M T/A Abel Group Midlands Ltd. | Construction | 2016 |
| A.J Character Collection Ltd | Wholesale & retail | 2025 |
| A2Z Drives & Landscaping Ltd | Administrative & support | 2025 |
| A2Z Roofing Solutions Ltd | Construction | 2024 |
| A5 Decking Supplies Limited | Manufacturing | 2020 |
| A5 Physio Limited | Other services | 2013 |
| A5 Spas Ltd | Manufacturing | 2015 |
| AA Mobiles Limited | Information & communication | 2018 |
| AA Tech Repairs Ltd | Wholesale & retail | 2023 |
| Able Foods Limited | Manufacturing | 2022 |
| Able Nutrition Limited | Manufacturing | 2024 |
| Able Protein Limited | Wholesale & retail | 2026 |
| Able Snacks Limited | Wholesale & retail | 2017 |
| Able Towing Limited | Real estate | 2000 |
| About the BOY Limited | Wholesale & retail | 2021 |
| Acacia Associates Limited | Professional & scientific | 2014 |
| Access Cleaning (Midlands) Limited | Construction | 2003 |
| Ace Landscaping and Property Maintenance Ltd | Construction | 2026 |
| ACS Compliance Limited | Information & communication | 2025 |
| ACTIV8 Fitness Ltd | Arts & recreation | 2014 |
| Adelan Limited | Manufacturing | 1996 |
| Adlem Properties Limited | Real estate | 2024 |
| Adnrg Limited | Construction | 2025 |
| Adrian Timberlake Ltd | Information & communication | 2022 |
| Adrian Timis Company Ltd | Wholesale & retail | 2025 |
| ADS Kitchens Limited | Construction | 2005 |
| Advanced Forklift Services (Midlands) Limited | Administrative & support | 1973 |
| AG Electrical Installations Limited | Construction | 2026 |
| Agentdirt Cleaning Services LLP | | 2023 |
| Aifamous Limited | Professional & scientific | 2023 |
| AIM Educational Ltd | Education | 2015 |
| Airborne Imagery Solutions Ltd | Professional & scientific | 2018 |
| AJB Surveying Services Limited | Professional & scientific | 2016 |
| Alchemy Medicorum Limited | Health & social care | 2017 |
| Alder Mill Business Park Ltd | Real estate | 2026 |
| Alder Mill Enterprise Ltd | Agriculture & fishing | 2020 |
| Aldridge Fields Management Limited | Households | 2008 |
| Aleks Fedotovs Limited | Transport & logistics | 2018 |
| Alexandra Peace Physiotherapy Limited | Health & social care | 2011 |
| All-Round Engineering & Management Consulting Limited | Transport & logistics | 2013 |
| Allure Management Ltd | Real estate | 2019 |
| Alpa Trucking Limited | Transport & logistics | 2025 |
| Altrius Limited | Professional & scientific | 2019 |
| Amber Business Village (Tamworth) Limited | Administrative & support | 1990 |
| Amington Heights Management Company Limited | Real estate | 1990 |
| AMS HR Solutions Limited | Administrative & support | 2022 |
| Anamich Ltd | Transport & logistics | 2022 |
| Andreiadam.Transport. Ltd | Transport & logistics | 2025 |
| Andrew Groves Financial Services Ltd | Financial services | 2022 |
| Animals at Home (North Warks) Limited | Professional & scientific | 2019 |
| ANT Holdings Limited | Financial services | 2015 |
| Apex Baits Ltd | Manufacturing | 2020 |
| Apollo (Tamworth) Management Company Limited | Administrative & support | 2017 |
| AR Vehicle Valeting Limited | Wholesale & retail | 2020 |
| Archaeology Matters Ltd | Professional & scientific | 2019 |
| Arlington House Properties Ltd | Real estate | 2024 |
| Arlp Limited Partnership | | 2008 |
| Armour Coaching Ltd | Professional & scientific | 2023 |
| Armstrong Site Management Limited | Professional & scientific | 2011 |
| Arundell Collections 2 Limited | Professional & scientific | 2026 |
| Arundell Collections Ltd | Professional & scientific | 2024 |
| Arundell Group 2 Ltd | Administrative & support | 2022 |
| Arundell Group Ltd | Professional & scientific | 2021 |
| Arundell Holdings Limited | Financial services | 2026 |
| ASH Productions Limited | Information & communication | 2020 |
| ASM (Contractors) Ltd | Construction | 2019 |
| Aspect Development Solutions Ltd | Construction | 2009 |
| Athag Holdings Ltd | Financial services | 2023 |
| Athag Limited | Manufacturing | 1969 |
| Atherstone Carpets & Flooring Limited | Wholesale & retail | 2019 |
| Atherstone Courier Services Ltd | Transport & logistics | 2017 |
| Atherstone Digital Ltd | Information & communication | 2023 |
| Atherstone Garage Limited | Wholesale & retail | 2007 |
| Atherstone Garage Service Centre Limited | Wholesale & retail | 2010 |
| Atherstone Glass & Glazing Co Ltd | Construction | 2004 |
| Atherstone Landscapes Limited | Wholesale & retail | 2002 |
| Atherstone MOT Station Limited | Wholesale & retail | 2016 |
| Atherstone Natural Nail Care Limited | Other services | 2018 |
| Atherstone Pharma Ltd | Health & social care | 2012 |
| Atherstone RAJ Mahal Limited | Hospitality | 2026 |
| Atherstone Shop Ltd | Real estate | 2025 |
| Atherstone ST. James Limited | Construction | 2013 |
| Atherstone Town C F C Ltd | Arts & recreation | 2021 |
| Atomic Health Ltd | Health & social care | 2020 |
| Audacia Retail Ltd | Wholesale & retail | 2025 |
| Auracare Limited | Health & social care | 2014 |
| Auto Atai Limited | Professional & scientific | 2020 |
| Av.London Property Ltd | Real estate | 2022 |
| Avalanche Equestrian Ltd | Professional & scientific | 2023 |
| Aveeraz Ltd | Wholesale & retail | 2025 |
| Avondale Park Homes Limited | Extraterritorial | 1957 |
| Avondale Property (Holdings) Limited | Hospitality | 1970 |