| 11613389 Limited | Households | 2018 |
| 2SHP Limited | Real estate | 2021 |
| 355 Solutions Limited | Information & communication | 2023 |
| 3SHP Limited | Real estate | 2021 |
| 4WARD Architects Ltd | Professional & scientific | 2009 |
| 7 Valley Transport Ltd | Transport & logistics | 2024 |
| A & V Services Limited | Financial services | 1984 |
| A Brookes Construction Ltd | Construction | 2018 |
| A C Dakin Limited | Agriculture & fishing | 1999 |
| A J Building and Property Maintenance Ltd | Construction | 2017 |
| A.D. Health & Fitness Ltd | Arts & recreation | 2024 |
| A.W Consultancy & Engineering Services Limited | Professional & scientific | 2020 |
| ABC First Response Limited | Health & social care | 2024 |
| Accusoft Limited | Information & communication | 2013 |
| Ace Kind Ltd | Construction | 2002 |
| Ace Kind Property Limited | Real estate | 2018 |
| ACR Fabrications Ltd | Manufacturing | 2022 |
| Ad-Chem Limited | Extraterritorial | 1983 |
| Adam Brookes Properties Ltd | Real estate | 2025 |
| Adams Tree Professionals Limited | Agriculture & fishing | 2018 |
| Aderley Lettings Limited | Real estate | 2001 |
| Adfield-Harvey Limited | Professional & scientific | 1974 |
| Adscript UK Limited | Professional & scientific | 2010 |
| Adstrading AS Black Apple Ltd | Wholesale & retail | 2019 |
| Advanced Heat Solutions Limited | Construction | 2015 |
| Aesop Consult Limited | Professional & scientific | 2021 |
| Aetas Limited | Administrative & support | 2012 |
| Agility Outsourcing Limited | Administrative & support | 2022 |
| AGT Window Cleaning Limited | Administrative & support | 2026 |
| AJG Logistics Solutions Limited | Professional & scientific | 2023 |
| AJG Recruit Limited | Administrative & support | 2025 |
| AJS Delivers Ltd | Transport & logistics | 2025 |
| Alban Welch Limited | Professional & scientific | 2014 |
| Albrighton Wealth Management Ltd | Financial services | 2007 |
| ALD Property Developments Ltd | Real estate | 2026 |
| Alex James Construction Ltd | Construction | 2022 |
| Alex JC Holdings Ltd | Real estate | 2024 |
| Alfmny Ltd | Wholesale & retail | 2020 |
| Alfmny Services Limited | Professional & scientific | 2021 |
| Aligned Soul Limited | Other services | 2019 |
| ALL Engraving Limited | Manufacturing | 2025 |
| Allen Chimwae Couriers Limited | Transport & logistics | 2021 |
| Alltek Solutions Limited | Information & communication | 2004 |
| Almoner's Chest Limited | Wholesale & retail | 2018 |
| Aluminium Coating Services Ltd | Professional & scientific | 2022 |
| AMA Leaders Holding Ltd | Financial services | 2025 |
| AMA Leaders Ltd | Hospitality | 2024 |
| AMA Leaders Property Investment Ltd | Real estate | 2025 |
| AMH Advisors Limited | Administrative & support | 2023 |
| AMS Music Group Limited | Arts & recreation | 2018 |
| AMY B Marketing Ltd | Professional & scientific | 2023 |
| AMY Dickin Ltd | Professional & scientific | 2021 |
| Andrew Wade (Farms) Ltd | Agriculture & fishing | 2016 |
| Anta Community Training CIC | Administrative & support | 2020 |
| Anta Education Limited | Administrative & support | 2019 |
| Apex Modular Limited | Construction | 2018 |
| Apley Estates Company (the) | Professional & scientific | 1933 |
| Apley Trustees Number 1 Limited | Real estate | 2020 |
| Apley Trustees Number 2 Limited | Real estate | 2020 |
| Approach Property Limited | Real estate | 2021 |
| Arepazo & Co Ltd | Other services | 2018 |
| Argo Leaders Ltd | Professional & scientific | 2025 |
| Artball Ltd | Arts & recreation | 2022 |
| AS Modelling & Data Limited | Information & communication | 2014 |
| Ashley Gamble Beauty Limited | Other services | 2014 |
| Ashley Gamble Limited | Other services | 2013 |
| Aston Hall Farm Management Company Limited | Households | 1988 |
| Aston TAP House Limited | Hospitality | 2015 |
| Atriumbar Ltd | Hospitality | 2026 |
| Auntie's Catering Co Ltd | Hospitality | 2025 |
| Aurum Realty Limited | Professional & scientific | 2018 |
| Automation Experts Limited | Administrative & support | 2001 |
| B&S Geological UK Ltd | Professional & scientific | 2019 |
| Badger Farms Limited | Agriculture & fishing | 1963 |
| Baldwin & Co Estates Ltd | Real estate | 2026 |
| Baldwin Construction Limited | Construction | 2015 |
| Barber Browns Limited | Other services | 2022 |
| Barbers Building Maintenance Limited | Administrative & support | 2015 |
| Barefoot APE Ltd | Professional & scientific | 2011 |
| Bavarian Car Parts Ltd | Wholesale & retail | 2016 |
| Bavarian Car Sales Ltd | Wholesale & retail | 2020 |
| Beamology Ltd | Information & communication | 2020 |
| Beauty Discount Ltd | Wholesale & retail | 2019 |
| Beckbury Property Services Ltd | Administrative & support | 2025 |
| Bell in Shifnal Ltd | Real estate | 2026 |
| Betchworth Trustees Number 1 Limited | Real estate | 2020 |
| Betchworth Trustees Number 2 Limited | Real estate | 2020 |
| Beverly Newton ISW Limited | Health & social care | 2024 |
| Bibb & Mason Carpentry Contractors Ltd | Construction | 2016 |
| Biorganic Bodycare Ltd | Other services | 2019 |
| Birbeck Drive Flats Management Limited | Households | 2007 |
| Blacklight Design Ltd | Professional & scientific | 2025 |
| Blackridge Contracting Ltd | Professional & scientific | 2026 |
| Blackstar Merchant Services Limited | Administrative & support | 2011 |
| BLC Solutions Limited | Information & communication | 2015 |
| Blint Creative Ltd | Professional & scientific | 2026 |
| Bloomsbury Nursery Limited | Wholesale & retail | 2012 |
| Blue Ginger Spice Ltd | Hospitality | 2025 |
| Blue Tiger Limited | Other services | 2022 |
| Bonnies Baths and Bubbles (Newport) Ltd | Other services | 2024 |