| 17 KR Limited | Hospitality | 2015 |
| 1ST Advanced Groundworks Limited | Construction | 2020 |
| 1ST Advanced Heating Limited | Construction | 2002 |
| 1ST Advanced Landscapes Limited | Administrative & support | 2022 |
| 360 View-Point Consulting Limited | Professional & scientific | 2025 |
| 8KD Holdings Ltd | Real estate | 2021 |
| A and L Moorings Limited | Manufacturing | 2025 |
| AA Heights Ltd | Real estate | 2020 |
| AA Properties and Construction Ltd | Construction | 2016 |
| AAH Rushmoor & Hart Ltd. | Professional & scientific | 2015 |
| Absolem Retail Ltd | Professional & scientific | 2017 |
| Accounts Digital Limited | Professional & scientific | 2019 |
| Activate Media Ltd | Information & communication | 2025 |
| Active Presentation Services Ltd. | Administrative & support | 2008 |
| Acton Associates Limited | Real estate | 2011 |
| Adams Drainage Solutions Ltd | Professional & scientific | 2020 |
| Advelocity Limited | Information & communication | 1994 |
| AJJ Consultancy Services Limited | Professional & scientific | 2015 |
| Akordo Limited | Information & communication | 2017 |
| Alastair Macintyre Business Coaching Ltd | Professional & scientific | 2025 |
| Alex White Associates Limited | Professional & scientific | 2006 |
| Aligned Insights Limited | Health & social care | 2020 |
| Aliris Regis Ltd | Construction | 2021 |
| Alison Oliver Consulting Limited | Professional & scientific | 2021 |
| Alpine Hosts Ltd | Hospitality | 2026 |
| Alpus Corporate Relocations Ltd | Hospitality | 2023 |
| Alpus Lime Developments Ltd | Construction | 2025 |
| Amber Acupuncture Ltd | Health & social care | 2025 |
| Amesbury School Trust Limited | Education | 1970 |
| Amor ET Psyche Ltd | Manufacturing | 2015 |
| Amoria Lace Ltd | Wholesale & retail | 2025 |
| Ampella Holdings Limited | Real estate | 2016 |
| Ampella Maintenance Limited | Construction | 2010 |
| Analytiques C and F Limited | Education | 2008 |
| Antelore Ltd | Professional & scientific | 1997 |
| Applegarth Agri Data Hub Limited | Construction | 2026 |
| Aquila Capital Solutions Ltd | Administrative & support | 2022 |
| Aquila Concierge Services Ltd | Other services | 2015 |
| Aquila Financial Services Ltd | Professional & scientific | 2025 |
| Aquula Limited | Professional & scientific | 2007 |
| Arcis Advisory Ltd | Professional & scientific | 2026 |
| Ashbriar Limited | Construction | 1992 |
| Atkinberry Holdings Ltd | Financial services | 2026 |
| Attitude Solutions Limited | Professional & scientific | 1997 |
| Austin Place RTM Company Limited | Households | 2025 |
| Automotif Design Limited | Professional & scientific | 2005 |
| AYN 101 Limited | Construction | 2018 |
| AYN Putney Bridge Road Ltd | Real estate | 2020 |
| Aynstone Limited | Professional & scientific | 2017 |
| Aynstone West Drayton Ltd | Construction | 2023 |
| Badger BJJ Company Limited | Arts & recreation | 2019 |
| Bank C&T Limited | Education | 2008 |
| Barn and Beyond Limited | Agriculture & fishing | 2026 |
| Barnsdale Associates Limited | Professional & scientific | 2015 |
| Bays Leap Dairy Farm Limited | Agriculture & fishing | 1999 |
| Beach Fest Limited | Hospitality | 2021 |
| Beacon Aerials LLP | | 2011 |
| Beacon Barber Ltd | Other services | 2026 |
| Beacon Business Limited | Professional & scientific | 2012 |
| Beacon Hill's Garage Ltd | Wholesale & retail | 2014 |
| Beaconhill Construction Limited | Construction | 2003 |
| Bears' Wood Residents Management Company Limited | Administrative & support | 2013 |
| Beaufield Gate Management Company Limited | Households | 1989 |
| Benson Golf Limited | Arts & recreation | 2008 |
| Big Ship Retail Limited | Wholesale & retail | 2025 |
| Big Spring Music Ltd | Information & communication | 2012 |
| Bihi Ltd | Transport & logistics | 2022 |
| Blaq Cat Global Holdings Ltd | Financial services | 2025 |
| Blaq Cat UK Ltd | Construction | 2025 |
| Bloomnow.Me Limited | Information & communication | 2025 |
| Blue Bear Homes Limited | Real estate | 2017 |
| Bluedot Sensing Ltd | Information & communication | 2014 |
| Bluethorn Energy Ltd. | Financial services | 2015 |
| BM Aviation Services Ltd | Professional & scientific | 2022 |
| Bonnard Consulting Limited | Professional & scientific | 2015 |
| Booterstown Management Limited | Administrative & support | 2001 |
| Bowershaw Ltd | Wholesale & retail | 2025 |
| BR Property Developments Ltd | Real estate | 2022 |
| Bradgate Consultancy Services Limited | Professional & scientific | 2012 |
| Broder Holdings Ltd | Real estate | 2024 |
| Bryanston Research Limited | Construction | 2001 |
| Bryantuk Ltd | Agriculture & fishing | 2023 |
| Budding Landscape Design Ltd | Professional & scientific | 2020 |
| Burton-Evans and Associates Limited | Wholesale & retail | 2017 |
| Butter and Cream Limited | Hospitality | 2017 |
| C a B Transport Logistic Ltd | Transport & logistics | 2019 |
| Cadal Limited | Hospitality | 2025 |
| Caffe Verdi Limited | Hospitality | 2015 |
| Cannon Trust Limited | Financial services | 1926 |
| Carver Consulting International Limited | Financial services | 2004 |
| Cat&Cat Ltd | Administrative & support | 2021 |
| Cazza Fresh Food Ltd | Hospitality | 2019 |
| Celebration Lights Ltd | Manufacturing | 2021 |
| Centered Golf Ltd | Information & communication | 2024 |
| CEW Communications Limited | Professional & scientific | 2016 |
| Chloe Louise Budd Limited | Other services | 2017 |
| Chris Webster Consulting Limited | Professional & scientific | 2015 |
| Chudashree Ltd | Hospitality | 2025 |
| Circuits Manufacturing Services Limited | Manufacturing | 2022 |
| CJO Accountancy Ltd | Professional & scientific | 2012 |