| 1 to 9 ST. Georges Court RTM Company Limited | Households | 2020 |
| 10 to 45 ST. Georges Court RTM Company Limited | Households | 2020 |
| 102 Gradi Ltd | Hospitality | 2025 |
| 108 Cumnor Hill Development Limited | Construction | 2017 |
| 10A Cambalt Road RTM Company Limited | Households | 2020 |
| 12 Consulting (London) Ltd | Professional & scientific | 2016 |
| 12 Old High Street Management Company Limited | Households | 2019 |
| 130R Services Limited | Professional & scientific | 2021 |
| 1310 Properties LLP | | 2021 |
| 132 Greyhound Road RTM Company Limited | Households | 2020 |
| 14 LEE High Road Residents Management Company Limited | Households | 2013 |
| 16A Westfield Flat Management Co Limited | Households | 2019 |
| 18 Swan Lane Ltd | Real estate | 2025 |
| 1ST 4 Hot Tubs Ltd | Other services | 2016 |
| 1ST Stop MOT & Service Ltd | Wholesale & retail | 2011 |
| 1ST4FITNESS Limited | Arts & recreation | 2015 |
| 20 - 21 Market Place Management Company Limited | Households | 2023 |
| 2012 Law Limited | Professional & scientific | 2012 |
| 212 Construction Ltd | Administrative & support | 2017 |
| 22 Highlever Road Limited | Households | 2015 |
| 225-227 Roehampton Lane RTM Company Limited | Households | 2022 |
| 245 Stanstead Road RTM Company Ltd | Households | 2018 |
| 246 Marston Road Oxford Ltd | Real estate | 2025 |
| 2D OR NOT 2D Modular Homes Ltd | Construction | 2024 |
| 2JGRAPHICS Limited | Manufacturing | 2012 |
| 2ND Level Global Solutions Limited | Manufacturing | 2016 |
| 3 Catering Limited | Hospitality | 2019 |
| 3 North Way Limited | Households | 2008 |
| 31-34 ST Andrew's Hill Residents Association Limited | Households | 2006 |
| 32 Compayne Gardens (Tenants) Limited | Households | 2000 |
| 33 Hammelton Road RTM Company Limited | Households | 2025 |
| 33COCOA Ltd | Manufacturing | 2024 |
| 353 Woodstock Road Limited | Households | 1986 |
| 360AI Ltd | Information & communication | 2025 |
| 365 Smashburger Ltd | Hospitality | 2024 |
| 3GR Limited | Manufacturing | 2000 |
| 3PLRE Limited | Real estate | 2016 |
| 3SIXTY Health and Safety Ltd. | Professional & scientific | 2014 |
| 4 Way Developments Holdings Limited | Administrative & support | 2021 |
| 4 Way Developments LLP | | 2011 |
| 6 Aldrich Road Limited | Real estate | 2015 |
| 6 Chapel Lane (Benson) Management Company Limited | Real estate | 2003 |
| 61 Evans Lane (Oxford) Management Company Limited | Real estate | 2017 |
| 64 High Street Limited | Real estate | 2002 |
| 64TH & Social Ltd | Professional & scientific | 2018 |
| 71 High Street Hornsey Management Company Limited | Households | 2003 |
| 717 Enterprises Ltd | Professional & scientific | 2023 |
| 73 Cathnor Road Management Limited | Professional & scientific | 2004 |
| 746 Studios Limited | Information & communication | 2024 |
| 8 Cambalt Road RTM Company Limited | Households | 2021 |
| 80EIGHT Consultancy Ltd | Professional & scientific | 2020 |
| 82 Homes Ltd | Real estate | 2026 |
| 86 Blackheath Hill RTM Company Limited | Households | 2018 |
| 86 Creative Print Ltd | Manufacturing | 2005 |
| 9-2-3 Jobs Limited | Administrative & support | 2017 |
| 99 Lansdowne Lane RTM Company Limited | Households | 2020 |
| A & a Continental Ltd | Wholesale & retail | 2025 |
| A & B Gray LLP | | 2014 |
| A & S Consultants (UK) Limited | Construction | 2007 |
| A and M Brickwork Limited | Construction | 2026 |
| A Buxton Limited | Manufacturing | 2002 |
| A Class Corporate Travel UK Limited | Transport & logistics | 2007 |
| A E Prentice Ltd | Wholesale & retail | 2022 |
| A H Ottaway Electrical Limited | Construction | 2006 |
| A J Stacey Limited | Health & social care | 2014 |
| A Roof Above the Rest Ltd | Real estate | 2018 |
| A Wider View Limited | Other services | 2013 |
| A Word About Wind Ltd | Administrative & support | 2013 |
| A&D Roofing & Construction Limited | Construction | 2015 |
| A&L Building Ltd | Construction | 2021 |
| A-Lign Compliance and Security UK Ltd | Administrative & support | 2018 |
| A. Buxton (Group) Limited | Professional & scientific | 1995 |
| A.K Kumar Limited | Arts & recreation | 2021 |
| A.R.Janicki Ltd. | Other services | 2019 |
| A1 Accounts & Tax Limited | Professional & scientific | 2009 |
| A1 Bicester Property Management Limited | Real estate | 2025 |
| A1 Mortgages Limited | Financial services | 2000 |
| A1 Property Management Limited | Households | 2002 |
| A1PROPERTIES &Homes Ltd | Real estate | 2025 |
| A2B Elite Detailing Ltd | Wholesale & retail | 2024 |
| AA & RA Property Holdings Limited | Real estate | 2022 |
| AA Mobile Inn Ltd | Wholesale & retail | 2025 |
| Aalphatechsolutions Limited | Information & communication | 2014 |
| Aaron O'Sullivan Media Ltd | Information & communication | 2025 |
| Aarrc Investments Ltd | Real estate | 2021 |
| Aarsh IT Solutions Ltd | Information & communication | 2022 |
| Aask US Holdings Limited | Financial services | 2012 |
| Aask US Limited | Manufacturing | 2004 |
| AB Oxford Ltd | Hospitality | 2026 |
| Abacus 70 Limited | Professional & scientific | 2006 |
| Abacus Business Consulting Limited | Professional & scientific | 2001 |
| ABD Pro Ltd | Construction | 2021 |
| Abingdon Care Services (ACS) Limited | Health & social care | 2015 |
| Absolute Accounting Software Ltd | Information & communication | 2010 |
| Absolute Carpets Oxfordshire Limited | Construction | 2003 |
| Absolute Coverings Limited | Construction | 2001 |
| Absolute Taste Food Limited | Hospitality | 2018 |
| Absolute Taste Limited | Manufacturing | 1997 |
| Absolute Transport Consultancy Ltd | Professional & scientific | 2025 |
| Abundant Graze Ltd | Education | 2020 |