| Dabecca Consulting Limited | Real estate | 2017 |
| Dadima's C.I.C. | Manufacturing | 2014 |
| DAE Studio Ltd | Arts & recreation | 2022 |
| Dakota Court Freehold Management Limited | Real estate | 2014 |
| Dashwood Court Residents Association Limited | Administrative & support | 1996 |
| David Hicks 1970 Limited | Professional & scientific | 2000 |
| David Parker Architects Ltd. | Professional & scientific | 2001 |
| DB2 Property Limited | Real estate | 2010 |
| DE Souza Land & Securities Limited | Real estate | 2006 |
| Dgrs Development Ltd | Construction | 2011 |
| Dilan CUT Ltd | Other services | 2025 |
| Dominic Hyman Ltd | Arts & recreation | 2011 |
| Double M Roofing Ltd | Construction | 2019 |
| Draco Grills Ltd | Wholesale & retail | 2026 |
| Dynamo Property Management Limited | Real estate | 2019 |
| E&G Elite Ltd | Transport & logistics | 2017 |
| Earthstone Design & Build Ltd | Construction | 2025 |
| Easington Contracting Limited | Professional & scientific | 2004 |
| Efficient IT Systems Ltd. | Information & communication | 2017 |
| EG Broadcast Ltd | Information & communication | 2025 |
| Equasonics Ltd | Arts & recreation | 2023 |
| Equine Match Ltd | Information & communication | 2022 |
| Exhibition Display Solutions Ltd. | Administrative & support | 2001 |
| Exordia Property Ltd | Construction | 2006 |
| F. & L. Estates Limited | Real estate | 2019 |
| F. & L. Plant Limited | Administrative & support | 2019 |
| F.& L.Investments Limited | Real estate | 1964 |
| Fast Biopharma Ltd | Professional & scientific | 2016 |
| FAT FOX Watlington Limited | Hospitality | 2025 |
| Finorgetica Ltd | Information & communication | 2019 |
| First Celtic International Limited | Financial services | 2003 |
| Flats 31-39, 58-60 London Road Management Company Limited | Households | 2016 |
| Floorings Direct Limited | Wholesale & retail | 2019 |
| Focused Physio Limited | Health & social care | 2013 |
| Fourpoints Management Limited | Professional & scientific | 2010 |
| Freesoft Limited | Professional & scientific | 2009 |
| Friolin Capital Limited | Real estate | 2019 |
| Garden Trends Ltd | Wholesale & retail | 2014 |
| Gateway Collections UK. Ltd. | Extraterritorial | 1990 |
| Glue Crew Ltd | Administrative & support | 2024 |
| Golden Key Investment & Development (UK) Limited | Extraterritorial | 2009 |
| Goto Auctions Ltd | Other services | 2017 |
| Gravy & Custard Catering Limited | Hospitality | 2024 |
| Green Garden London Distro Ltd | Wholesale & retail | 2023 |
| Green Islander Investments Limited | Real estate | 2019 |
| Green String Ltd | Education | 2024 |
| Greenacres Farm Estate Ltd | Administrative & support | 2013 |
| Greyhound Limited | Wholesale & retail | 2025 |
| Greyhound Networks Ltd | Wholesale & retail | 1997 |
| Grove Regulatory Consultancy Limited | Professional & scientific | 2017 |
| Grover 66 Limited | Professional & scientific | 2000 |
| Grover 68 Limited | Administrative & support | 2025 |
| Gwyneth Anjuli Ltd | Arts & recreation | 2026 |
| Hall Management Consultancy Limited | Professional & scientific | 2023 |
| Hamburg Development Capital Limited | Real estate | 2023 |
| Hamilton Marriott Limited | Wholesale & retail | 1972 |
| Hammond Strategy Limited | Professional & scientific | 2016 |
| Hampden Mill LLP | | 2020 |
| Hamptons Capital Limited | Real estate | 2022 |
| Hatch Ride (Chalgrove) Ltd | Professional & scientific | 2021 |
| Hatch Ride (Oxford) Ltd | Professional & scientific | 2021 |
| Hatch Ride (Watlington) Ltd | Professional & scientific | 2021 |
| Hatch Ride Group Ltd | Professional & scientific | 2022 |
| Hatch Ride Properties Ltd | Energy | 2014 |
| Haus Music Events UK Ltd | Arts & recreation | 2025 |
| Health Home Connect Ltd | Health & social care | 2025 |
| Heatox Limited | Manufacturing | 2025 |
| Hollocombe Hideaway Limited | Hospitality | 2023 |
| House of Spice (Watlington) Limited | Hospitality | 2000 |
| Howard Events Limited | Administrative & support | 2015 |
| Hudson Automotive (Oxford) Limited | Wholesale & retail | 2021 |
| Hunts Groundwork & Plant Hire Ltd | Construction | 2017 |
| ILA Wellness Limited | Wholesale & retail | 2022 |
| IN Parallel Ltd | Professional & scientific | 2008 |
| Inachus Ltd | Professional & scientific | 2018 |
| Innovention Consultancy Limited | Professional & scientific | 2014 |
| International Education Center, Oxford (UK) Ltd | Education | 2004 |
| Intersection Partners Limited | Information & communication | 2024 |
| Irestoration Limited | Professional & scientific | 2013 |
| Isabelle Healthcare Training Limited | Health & social care | 2024 |
| Ithinck Ltd | Professional & scientific | 2020 |
| J Chittenden Limited | Construction | 2015 |
| J.Mclaren Electrical Ltd | Construction | 2026 |
| Jacme Foods UK Ltd | Wholesale & retail | 2025 |
| James Loaring Garden Services Limited | Administrative & support | 2014 |
| Jasmine Williams Productions Ltd | Manufacturing | 2025 |
| Jcmc Properties Ltd | Real estate | 2023 |
| Jenny Hands Photographer Limited | Professional & scientific | 2014 |
| JHB Catering Ltd | Hospitality | 2024 |
| Jilly’S Corner Ltd | Hospitality | 2021 |
| JPW Cushty Ltd | Real estate | 2022 |
| JRL Landscapes Ltd | Construction | 2023 |
| JTM Solution Limited | Health & social care | 2019 |
| Jump at the Chance Limited | Agriculture & fishing | 2018 |
| JW Inc Limited | Wholesale & retail | 2012 |
| K D Construction (Bucks) Ltd | Construction | 2015 |
| KAA Express Ltd | Hospitality | 2025 |
| KML Scaffolding Ltd | Construction | 2025 |
| Kolophon Ltd | Professional & scientific | 2011 |
| Ktsj Medical Services Limited | Health & social care | 2024 |