| 001° Marine Services LLP | | 2025 |
| 1 Percent Recruitment Group Limited | Administrative & support | 2025 |
| 1-22 Weavers Court RTM Company Limited | Households | 2008 |
| 10 Banbury Road Management Company Limited | Other services | 2025 |
| 10 Burford Road Management Ltd | Households | 2024 |
| 114 Cricket Road Management Company Limited | Households | 2018 |
| 13 the Parade Limited | Households | 2009 |
| 142 Spareacre Lane Limited | Real estate | 2010 |
| 146 High Street Management Company Limited | Real estate | 2005 |
| 15 Harts Close Kidlington Management Company Limited | Households | 2004 |
| 1516 London Road LLP | | 2017 |
| 18 Miles Road (Management) Limited | Real estate | 1981 |
| 18-28 Nightingale Walk (Freehold) Limited | Households | 2021 |
| 183 Limited | Information & communication | 2014 |
| 2-12 Nightingale Walk (Freehold) Limited | Households | 2021 |
| 213 Performance Limited | Wholesale & retail | 2016 |
| 24SEVEN Cars (Oxford) Ltd | Transport & logistics | 2022 |
| 24SHELLS Limited | Information & communication | 2017 |
| 263-267 Magdalen Road Limited | Households | 2006 |
| 2SQUARED Limited | Financial services | 2013 |
| 34 Black Bourton Road Management Company Limited | Real estate | 2014 |
| 34 Bourton Management Ltd | Extraterritorial | 2017 |
| 3D Aluminium Limited | Extraterritorial | 1987 |
| 3ECO Ltd | Professional & scientific | 2018 |
| 3I Studio Limited | Information & communication | 1995 |
| 3LITTLEBIRDS Care UK Ltd | Extraterritorial | 2024 |
| 3VQ Limited | Professional & scientific | 2022 |
| 4 Acre Ecology Limited | Professional & scientific | 2012 |
| 4 Cassington Road (Eynsham) Management Company Limited | Real estate | 2008 |
| 42 Bcde (Watlington) Management Company Limited | Households | 2025 |
| 42 International Limited | Financial services | 2021 |
| 43 Group Ltd | Health & social care | 2025 |
| 43-59 Arnold Way (Freehold) Company Limited | Households | 2026 |
| 45G Limited | Information & communication | 2017 |
| 4A Consulting Ltd | Professional & scientific | 2023 |
| 4C Managed Services Limited | Wholesale & retail | 1990 |
| 4D Homes (Witney) Ltd | Real estate | 2020 |
| 4DVIDEO Limited | Manufacturing | 2006 |
| 4NLM Management Services Limited | Professional & scientific | 2024 |
| 53-58 Antrim Mansions RTM Company Limited | Households | 2007 |
| 5763 Associates Limited | Manufacturing | 2006 |
| 6 and 6A Newland Freehold Limited | Households | 2026 |
| 62-68 Langdale Gate Limited | Households | 1999 |
| 68 Marine Road RTM Company Limited | Households | 2016 |
| 6RANG | Education | 2014 |
| 72 Farm Road Ltd | Construction | 2023 |
| 7STOPPERS Ltd | Transport & logistics | 2024 |
| 87 Alumhurst Management Company Limited | Real estate | 2020 |
| 888 Vape & Drip Ltd | Wholesale & retail | 2024 |
| 9-11 Burford Road Management Ltd | Administrative & support | 2017 |
| 91-97 Lime Walk (Headington) Management Company Limited | Households | 2024 |
| 9A-9E Eynsham Road (Botley) Management Company Limited | Households | 2022 |
| @ One With Earth Ltd | Administrative & support | 2002 |
| A & J Catering Limited | Hospitality | 2001 |
| A & J Reconstructions Limited | Construction | 2016 |
| A & N Brown Limited | Agriculture & fishing | 2007 |
| A & P Pickett Construction Ltd | Construction | 2006 |
| A & S Motors ( Witney ) Limited | Wholesale & retail | 2013 |
| A a Bailey Ltd | Health & social care | 2015 |
| A a Bradley Builders Limited | Construction | 2012 |
| A Budden Consultancy Limited | Professional & scientific | 2022 |
| A Caring Hand Limited | Wholesale & retail | 2020 |
| A Class Cleaning (UK) Limited | Administrative & support | 2007 |
| A D Taxis (Oxon) Ltd | Transport & logistics | 2016 |
| A Exell Plumbing & Heating Limited | Construction | 2003 |
| A House of Brands Ltd | Wholesale & retail | 2023 |
| A J Bray Property Development Limited | Real estate | 2018 |
| A J Carter & Co Witney Limited | Professional & scientific | 2010 |
| A J Lord and Sons Limited | Construction | 2012 |
| A L S Pest Control Limited | Agriculture & fishing | 2012 |
| A Maze Inc. Ltd | Information & communication | 2013 |
| A Murfin Consulting Ltd | Professional & scientific | 2024 |
| A N B Arboricultural Limited | Agriculture & fishing | 2013 |
| A Need 4 Speed Limited | Arts & recreation | 2006 |
| A P Landscaping (Oxfordshire) Limited | Administrative & support | 2018 |
| A R Blackwell Developments Limited | Construction | 2021 |
| A Stubbings Farms Ltd | Agriculture & fishing | 2024 |
| A T Autos Limited | Wholesale & retail | 2009 |
| A to Z Transport Oxford Limited | Transport & logistics | 2024 |
| A W Haulage (Oxford) Limited | Transport & logistics | 2017 |
| A Walker Upvc Limited | Wholesale & retail | 2001 |
| A&E the Property Professionals Ltd | Real estate | 2024 |
| A&N Earthworx Ltd | Construction | 2026 |
| A-Plan Holdings | Financial services | 1963 |
| A. Bartlett (General Building) Limited | Construction | 2003 |
| A. Rosenthal Limited | Wholesale & retail | 1936 |
| A. Van Muijlwijk Properties Ltd | Hospitality | 2025 |
| A.C. Nutland & SON Limited | Administrative & support | 2007 |
| A.G. Ashman (Joinery) Limited | Wholesale & retail | 1978 |
| A.G.D. Dorflo Limited | Construction | 2002 |
| A.V.Truman Limited | Health & social care | 2019 |
| A1 Transformation Ltd | Education | 2022 |
| A10A Holding Limited | Financial services | 2023 |
| A40 Inns Limited | Hospitality | 2023 |
| A40 Road Markings Ltd | Construction | 2017 |
| A44 Taxis Limited | Transport & logistics | 2025 |
| AAC Consultancy Limited | Health & social care | 2012 |
| Aace Pro Ltd | Professional & scientific | 2019 |
| Aace Properties Limited | Real estate | 2017 |
| Aaliyah DE Carvalho Limited | Arts & recreation | 2025 |