| 'BO Drinks Ltd | Wholesale & retail | 2025 |
| 1.21 Media Communications Ltd. | Professional & scientific | 2020 |
| 100% Construction & Renovation Limited | Construction | 2019 |
| 105 Design Ltd | Professional & scientific | 2023 |
| 128 Moscow Drive Limited | Real estate | 2024 |
| 132 Fellows Road Limited | Real estate | 1997 |
| 132A High Street Limited | Real estate | 2026 |
| 14A Bridge Road Management Company Limited | Households | 2021 |
| 1717 Investment Ltd | Real estate | 2023 |
| 176 Lancaster Road Freehold Limited | Extraterritorial | 2005 |
| 18,MELVILLE Road Limited | Real estate | 2026 |
| 185/187 Haverstock Hill Management Company Ltd | Households | 2025 |
| 1ST Pillar Limited | Education | 2024 |
| 1V Stratton Management Company Limited | Households | 2006 |
| 24 Campden Road Residents Association Limited | Other services | 1986 |
| 24 Wenlock Street Limited | Real estate | 2009 |
| 28 Dollar Street Limited | Households | 2005 |
| 2CC Consulting Limited | Other services | 2013 |
| 30 Victoria Road Management Company Limited | Households | 2009 |
| 37 Jubilee Limited | Real estate | 2020 |
| 41 Lovell Limited | Real estate | 2021 |
| 44RED Ltd | Extraterritorial | 2020 |
| 45 ST Albans Road Limited | Households | 2021 |
| 46 Lower Street Ltd | Real estate | 2021 |
| 496 Ltd. | Professional & scientific | 2011 |
| 4D Systems Ltd | Professional & scientific | 2025 |
| 55 to 60 Hargrave Mansions Limited | Households | 2004 |
| 60-62-64 Southford Road Freehold Limited | Households | 2020 |
| 67-68 Pall Mall Limited | Real estate | 2024 |
| 7 Dollar Limited | Real estate | 2017 |
| 96 Winchcombe Street (Management Company) Limited | Households | 2008 |
| 98 Clapham Road RTM Company Limited | Households | 2004 |
| A & L Builders Ltd. | Construction | 2001 |
| A & P Plumbing and Heating (Cotswolds) Ltd | Construction | 2021 |
| A B R Davidson Limited | Administrative & support | 2009 |
| A J Bates Property Services Ltd | Real estate | 2021 |
| A J Mcclare Limited | Other services | 2018 |
| A J Wadland Limited | Agriculture & fishing | 2006 |
| A Matter of Taste Limited | Hospitality | 2010 |
| A N L Limited | Professional & scientific | 1997 |
| A P Transport Glos. Limited | Construction | 2002 |
| A&E Classics Ltd | Wholesale & retail | 2024 |
| A&T Coate Company Limited | Professional & scientific | 2021 |
| A&V Consultancy Ltd | Professional & scientific | 2016 |
| A. Slade and SON Ltd | Other services | 2013 |
| A.C. Mervyn Day Limited | Construction | 2003 |
| A.C. Technology Systems Limited | Wholesale & retail | 1998 |
| A.C.J Plumbing and Heating Services Ltd | Construction | 2025 |
| A.G. Faulkner Consultants Ltd | Professional & scientific | 2019 |
| AB Frame Limited | Wholesale & retail | 2024 |
| ABA Tutor Finder Ltd | Other services | 2010 |
| Abamentis Ltd | Professional & scientific | 1996 |
| Abbeydale Solutions Limited | Manufacturing | 1997 |
| Abbott, Trower & Co (Wiltshire) Limited | Extraterritorial | 1994 |
| Abbott, Trower & Company Limited | Extraterritorial | 1994 |
| Abbott,Trower & Co (Devon) Ltd. | Extraterritorial | 1994 |
| Abcs Accountancy Limited | Professional & scientific | 2005 |
| Ablefolk Ltd | Information & communication | 2024 |
| Abode Financial Planning Limited | Financial services | 2022 |
| Abot Solutions Limited | Wholesale & retail | 2019 |
| Abram’S Bridge Ltd | Real estate | 2024 |
| ABU Dhabi Consulting Group Limited | Extraterritorial | 2020 |
| Acceleration Driver Development Ltd | Other services | 2010 |
| Accounting by Design (UK) Limited | Professional & scientific | 2004 |
| Acculink Technology Limited | Professional & scientific | 2013 |
| Accure Ltd | Administrative & support | 2003 |
| Ace OUT of School Club Limited | Health & social care | 2021 |
| Acer Close (Cheltenham) Management Company Limited | Households | 2018 |
| ACG Airtech Ltd | Manufacturing | 2023 |
| Achaean Petroleum Consulting Limited | Mining & quarrying | 1996 |
| Achievership Limited | Education | 1995 |
| Acorn Entertainments Limited | Arts & recreation | 1991 |
| Acre Street Store Limited | Wholesale & retail | 2022 |
| Active Dog Academy Ltd | Other services | 2023 |
| Active Market Research Limited | Professional & scientific | 2002 |
| Active Therapy Cirencester Ltd | Health & social care | 2026 |
| Actual Communications Limited | Professional & scientific | 2015 |
| Adam Drake Photography Limited | Professional & scientific | 2009 |
| Adamstor Design Limited | Professional & scientific | 2014 |
| Adbe Ltd | Administrative & support | 2012 |
| ADD Motorsports Ltd | Arts & recreation | 2012 |
| ADD Squirrel Ltd | Wholesale & retail | 2023 |
| Adept Dental Ltd | Professional & scientific | 2013 |
| Adivabo Ltd | Professional & scientific | 2026 |
| Adkins Estates Ltd | Real estate | 2013 |
| ADL Support Services Limited | Professional & scientific | 2010 |
| Admington Hall Farms Limited | Agriculture & fishing | 1995 |
| Adrian Osbourn Consulting Limited | Administrative & support | 2022 |
| Adroit Data and Insight Ltd | Information & communication | 2019 |
| Advance Recruitment (Leeds) Limited | Professional & scientific | 2000 |
| Advantage NRG Ltd | Construction | 2011 |
| Advantage Storage & Handling Limited | Other services | 2000 |
| Advantage-Uk Holdings Ltd | Other services | 2018 |
| Adventure Velo Ltd | Other services | 2022 |
| AE Cogen Developments Limited | Construction | 2021 |
| Aero-Super-Batics Limited | Arts & recreation | 1986 |
| Afinitek Limited | Wholesale & retail | 2009 |
| AFL Associates Limited | Public administration | 2019 |
| Africa WE Travel Ltd | Administrative & support | 2024 |
| African Explorations Limited | Administrative & support | 1994 |