| Full View Limited | Professional & scientific | 2020 |
| G.J. Newman Engineering Ltd | Transport & logistics | 2025 |
| Gamages Accountancy Ltd | Professional & scientific | 2008 |
| GCF Investments Limited | Agriculture & fishing | 2023 |
| Glenarch Limited | Professional & scientific | 1984 |
| Gooddy Holdings Limited | Financial services | 2022 |
| GPS Financial Services Ltd | Financial services | 2017 |
| Gray ELM Ltd | Construction | 2021 |
| Green Dog Deli Limited | Manufacturing | 2007 |
| Green Shift Innovations Ltd | Administrative & support | 2018 |
| Halyn Ltd | Information & communication | 2025 |
| Hammock Advisory Limited | Administrative & support | 2018 |
| Harcourt Motors Ltd | Transport & logistics | 2021 |
| Hartwell Electrical Contractors Ltd | Construction | 2012 |
| Hermes Consulting and Investments Limited | Financial services | 2021 |
| High Pass Limited | Professional & scientific | 2020 |
| Hijinks Events Ltd | Hospitality | 2023 |
| Holifield Trading Ltd | Wholesale & retail | 2017 |
| Holifield Ventures Ltd | Financial services | 2014 |
| Homearama Limited | Wholesale & retail | 1999 |
| Horizon Life Care Limited | Health & social care | 2005 |
| Hormony Drinks Ltd | Manufacturing | 2022 |
| Hoskins Horticulture Limited | Households | 2005 |
| Hudd Works Ltd | Information & communication | 2021 |
| Hunters Cake Company Ltd | Hospitality | 2015 |
| Hyatt Financial Management Limited Liability Partnership | | 2024 |
| Instant Developments Limited | Construction | 1998 |
| Instant Timber Limited | Agriculture & fishing | 1998 |
| Intune Dance and Movement Ltd | Arts & recreation | 2018 |
| Island Publishing Company Limited | | 1982 |
| JC Travel Ltd | Administrative & support | 2026 |
| Jenny Burns Limited | Professional & scientific | 2019 |
| JP Sumner Investments Limited | Real estate | 2025 |
| Just Jess Ltd | Administrative & support | 2024 |
| K19 Properties Ltd | Real estate | 2026 |
| Kemsley Capital Ltd | Real estate | 2024 |
| Kinfolk Communications Limited | Professional & scientific | 2011 |
| KS Bespoke Property Ltd | Real estate | 2023 |
| Lewis Saunders Racing Ltd | Education | 2021 |
| Lifting Lords Ltd | Agriculture & fishing | 2011 |
| Lindsey Allan Limited | Hospitality | 2010 |
| Little Clanfield Estates Ltd | Real estate | 2017 |
| Lusitanica Limited | Financial services | 2026 |
| M & S Windows (Witney) Limited | Construction | 2000 |
| Mark Lyne Creative Ltd | Information & communication | 2019 |
| Martin Estates & Development Ltd | Real estate | 2025 |
| MEI Roberts Holdings Limited | Real estate | 2026 |
| Meng Consultancy Limited | Professional & scientific | 2023 |
| Micksturbz Ltd | Manufacturing | 2025 |
| Mill Farm Commercial Ltd | Administrative & support | 2002 |
| Mill Farm Residents Association Limited | Households | 1998 |
| MK Construction 2020 Ltd | Construction | 2025 |
| Moda Consulting Ltd | Construction | 2016 |
| Monique Carter Consulting Limited | Professional & scientific | 2025 |
| Montmorency Band Limited | Information & communication | 2024 |
| Moonraker Management Ltd. | Real estate | 2018 |
| Morethanit Ltd | Administrative & support | 2019 |
| Morva Consulting Ltd | Professional & scientific | 2025 |
| Move Consulting Partners Limited | Professional & scientific | 2024 |
| Moxie-D Ltd | Health & social care | 2022 |
| MP Brown Ltd | Other services | 2026 |
| Natalie Alcraft Travel Counsellors Ltd | Administrative & support | 2026 |
| NG Accountancy Services Ltd | Professional & scientific | 2021 |
| Nicholas Olliffe Ltd | Manufacturing | 2014 |
| NJ Griffiths Consulting Limited | Professional & scientific | 2017 |
| Noderunner Ltd | Information & communication | 2025 |
| North Street Motors (Stow) Limited | Wholesale & retail | 2021 |
| Nova Space Interiors Ltd | Professional & scientific | 2025 |
| NRT Management Limited | Arts & recreation | 2011 |
| Nulty Consulting Ltd | Professional & scientific | 2017 |
| Oakey Close Limited | Professional & scientific | 1994 |
| Ocean Goals Ltd | Wholesale & retail | 2024 |
| Odcgis Limited | Information & communication | 2014 |
| Olivia Maxwell-Jones Cotwolds Aesthetics Ltd | Other services | 2022 |
| Optimum Brasses Limited | Manufacturing | 2009 |
| Osborne Khan Ltd | Hospitality | 2022 |
| Oxford Data Consultancy Limited | Administrative & support | 2007 |
| Oxford Talent Solutions Ltd | Professional & scientific | 2018 |
| Oxfordshire Extreme Sports Alliance C.I.C. | Education | 2025 |
| Oxfordshire Solar Solutions Ltd | Construction | 2025 |
| Oystr Ltd | Information & communication | 2021 |
| P D Hook (Turkeys) Limited | Agriculture & fishing | 2002 |
| P.D. Hook (Breeders) Limited | Agriculture & fishing | 1993 |
| P.D. Hook (Rearing) Limited | Agriculture & fishing | 1999 |
| P.D.Hook(Hatcheries)Limited | Agriculture & fishing | 1963 |
| Park Farm Lane (Alvescot) Residents Management Company Limited | Households | 2022 |
| Parry Investment Properties Limited | Real estate | 2021 |
| Paul Brown Interim and Consulting Limited | Administrative & support | 2017 |
| Pegga Holdings Limited | Administrative & support | 2012 |
| Penthwell Farm Ltd | Agriculture & fishing | 2026 |
| Perspectives Partnership Limited | Professional & scientific | 2022 |
| Piers Holden Limited | Professional & scientific | 2014 |
| Platform Design Oxford Ltd | Manufacturing | 2020 |
| Pleo Consulting Limited | Professional & scientific | 2023 |
| PMP Farming LLP | | 2011 |
| Podders Ltd | Wholesale & retail | 2026 |
| Point Blank Consultants Ltd | Professional & scientific | 2026 |
| Polished Beauty Limited | Other services | 2012 |
| Positive Steps Mentoring Ltd | Other services | 2024 |
| Pour Coffee Ltd | Hospitality | 2025 |