| 1 River Terrace Henley-On-Thames Limited | Households | 2004 |
| 100 Barracks Lane Limited | Households | 2007 |
| 11 Beauchamp Road Limited | Households | 2002 |
| 20 Park Avenue (Kidlington) Management Company Limited | Real estate | 2007 |
| 203 Woodstock Road Management Company Limited | Real estate | 2006 |
| 265 Marston Road (Marston) Management Company Limited | Real estate | 2004 |
| 276 Abingdon Road Management Company Limited | Households | 2005 |
| 28 Downside Road Oxford Management Company Limited | Extraterritorial | 2005 |
| 2MORROW Group Limited | Professional & scientific | 2003 |
| 3 Church Cowley Road Limited | Real estate | 1999 |
| 31 Beaumont Street Limited | Real estate | 2004 |
| 32 Banbury Road Management Company Limited | Real estate | 1997 |
| 35 Netherwood Road (Risinghurst) Management Company Limited | Households | 2004 |
| 3D Dentalcare Limited | Health & social care | 2007 |
| 415 LLP | | 2007 |
| 43 Cornwallis Road (Cowley) Management Company Limited | Real estate | 2004 |
| 47-54 Management Limited | Real estate | 1994 |
| 50 Westminster Way (Oxford) Limited | Real estate | 2004 |
| 600C Consulting Limited | Professional & scientific | 2015 |
| 7-SECONDS Consultancy Limited | Information & communication | 2007 |
| 71-81 West ST. Helen Street Management Company Limited | Households | 1986 |
| 9, Old Parr Road Residents Management Limited | Real estate | 1989 |
| 94-100 Langdale Gate Management Company Limited | Hospitality | 1999 |
| A & C Services (Oxford) Limited | Construction | 2001 |
| A & D Instruments Limited | Wholesale & retail | 1991 |
| A C Roofing Group Ltd | Construction | 2024 |
| A Drinkwater Property Services Limited | Construction | 2004 |
| A J Carter & Co Limited | Professional & scientific | 2002 |
| A Kimber Carpentry Limited | Construction | 2004 |
| A T R Contracts Limited | Construction | 2000 |
| A. B. Property Ltd. | Real estate | 1997 |
| A. Manning U.K. Limited | Financial services | 1984 |
| A. Peirce Limited | Wholesale & retail | 2001 |
| A.C. Lester Properties Limited | Real estate | 1963 |
| A.D. Works Limited | Administrative & support | 2008 |
| A.G.Hedges Limited | Real estate | 1947 |
| A.I.M. Consultancy Limited | Professional & scientific | 1992 |
| A.K.R. Limited | Transport & logistics | 1998 |
| A.T. Kimberley (Holdings) Limited | Other services | 1985 |
| A1 Contracting Limited | Construction | 1999 |
| A1DAY Limited | Professional & scientific | 2025 |
| AAC Properties Limited | Real estate | 2007 |
| Abamicbog Ltd | Transport & logistics | 2022 |
| Abbey Place Limited | Real estate | 2004 |
| Abbey Properties (Eynsham) Limited | Real estate | 1998 |
| Abingdon Bathrooms and Kitchens Limited | Construction | 1999 |
| Abingdon Stone & Marble Limited | Construction | 1999 |
| Ablebodied Limited | Manufacturing | 1993 |
| Absolutely Offices Limited | Administrative & support | 1995 |
| Accoutrement Limited | Transport & logistics | 1988 |
| ACM Investment I Limited | Financial services | 2024 |
| Acorn Classic Automotive Ltd | Wholesale & retail | 2001 |
| Acorn Internet Ltd | Wholesale & retail | 2005 |
| Active Media Business Solutions Limited | Information & communication | 1997 |
| Active Media Consulting Limited | Professional & scientific | 1998 |
| Adolcare Service Limited | Health & social care | 2019 |
| Adorn Fashions Ltd. | Transport & logistics | 1997 |
| Advance Automation Consultancy Ltd | Professional & scientific | 2024 |
| Advance Design Services Limited | Professional & scientific | 2006 |
| AF & Relly Limited | Transport & logistics | 2015 |
| Aferry Ltd | Administrative & support | 2000 |
| Agah's Pizza Ltd | Hospitality | 2021 |
| AHB Health Limited | Health & social care | 2026 |
| Airborne Classics Limited | Transport & logistics | 2005 |
| Akriga Limited | Information & communication | 2001 |
| Alex Dumitrache Limited | Hospitality | 2014 |
| Alidec Limited | Construction | 1999 |
| Allerton and Company of London Ltd | Manufacturing | 1988 |
| Allertons Events Branding Limited | Professional & scientific | 2016 |
| Allertons Group Ltd | Professional & scientific | 2016 |
| Alpha Wave Technology Limited | Professional & scientific | 1998 |
| Alpine Eagle Ltd | Wholesale & retail | 2002 |
| Alternative Lighting Services Ltd | Construction | 2004 |
| Alubau Limited | Manufacturing | 2014 |
| AMA 07 Speed Ltd | Transport & logistics | 2021 |
| Anagram Communications Limited | Professional & scientific | 2005 |
| Analytical Engineering Limited | Manufacturing | 1993 |
| Analytical Products Limited | Real estate | 2007 |
| Anderson Chiropractic Limited | Health & social care | 2003 |
| Andsome Films Limited | Administrative & support | 2006 |
| Andsware Limited | Information & communication | 2005 |
| Angloid IV Limited | Construction | 1999 |
| Anshir Limited | Real estate | 2002 |
| Antonio Caruso Dsales Limited | Wholesale & retail | 2025 |
| Apax Corals Ltd | Agriculture & fishing | 2025 |
| Apexss Limited | Administrative & support | 2007 |
| Arini Capital Management Limited | Financial services | 2022 |
| Artibi Limited | Wholesale & retail | 2004 |
| Asbestos Laboratory Services (UK) Ltd | Professional & scientific | 2018 |
| Aspect Arboriculture Holdings Limited | Financial services | 2023 |
| Asset MAX Ltd. | Professional & scientific | 2006 |
| Atomite Limited | Transport & logistics | 2019 |
| Audience Pro Ltd | Professional & scientific | 2019 |
| Auto Facilities Limited | Real estate | 1957 |
| Automotion Components Ltd | Wholesale & retail | 1992 |
| AVI Limited | Information & communication | 2000 |
| Avvron Ltd | Manufacturing | 2018 |
| Ayebia Clarke Publishing Limited | Information & communication | 2003 |
| Ayers and Graces Limited | Wholesale & retail | 2019 |
| B.I. (UK) Limited | Financial services | 1998 |