| THE John Paul II Centre Limited | Hospitality | 2011 |
| THE Kimble Clinic Ltd | Health & social care | 2025 |
| THE Laser Clinic Bicester Ltd | Other services | 2021 |
| THE Laundry Basket Bicester Ltd | Other services | 2017 |
| THE Leaders Healthcare Services Ltd | Health & social care | 2024 |
| THE Ljbar Group Limited | Real estate | 2023 |
| THE Menu Makers Services Limited | Hospitality | 2013 |
| THE Menu Partners Limited | Wholesale & retail | 2020 |
| THE Menu Partners Retail Limited | Wholesale & retail | 2022 |
| THE Menu Partnership Limited | Hospitality | 2020 |
| THE Milk Shed / Gamma RW Limited | Hospitality | 2022 |
| THE More Agency Limited | Professional & scientific | 2007 |
| THE Motivation Agency Limited | Professional & scientific | 2006 |
| THE Myers-Briggs Company (Europe) Limited | Information & communication | 2015 |
| THE Myers-Briggs Company Holdings (Europe) Limited | Information & communication | 2016 |
| THE Myers-Briggs Company Limited | Information & communication | 1988 |
| THE Neurodivergent Collective Ltd | Administrative & support | 2023 |
| THE New Diamond Clean Ltd | Administrative & support | 2021 |
| THE North Cotswold Ice Cream Company Ltd | Manufacturing | 2021 |
| THE Old Courthouse Bicester Limited | Real estate | 2024 |
| THE Old Vicarage, Banbury Ltd | Real estate | 2017 |
| THE Olive Tree PUB Company Ltd | Hospitality | 2023 |
| THE Original Cornish Pasty Company Limited | Manufacturing | 2019 |
| THE Original Giant Roll Company Limited | Wholesale & retail | 2019 |
| THE Oxford Bar Company Limited | Hospitality | 2014 |
| THE Oxford Christmas Company Limited | Wholesale & retail | 2014 |
| THE Oxford Knee Group Limited | Health & social care | 2019 |
| THE Oxford Removal Company Limited | Extraterritorial | 2002 |
| THE Oxford Shakespeare Festival Limited | Arts & recreation | 2015 |
| THE Oxford Stone Company Limited | Extraterritorial | 2021 |
| THE Oxfordshire Macmen Ltd | Construction | 2024 |
| THE Parkside Management Company (Oxon) Ltd | Households | 2010 |
| THE Perfect ARC Limited | Manufacturing | 2025 |
| THE Pinkiepick Ltd | Wholesale & retail | 2026 |
| THE Podhouse Company Ltd | Construction | 2020 |
| THE Probate Advice Centre Ltd | Professional & scientific | 2024 |
| THE Production Kitchen by Quince and Clover Ltd | Manufacturing | 2026 |
| THE Proper Food and Drink Company Limited | Financial services | 2018 |
| THE Property Avatar Limited | Administrative & support | 2017 |
| THE Property Investors Partnership Limited | Financial services | 2016 |
| THE Quiz Team Ltd | Arts & recreation | 2018 |
| THE Red Grape Ltd | Wholesale & retail | 2025 |
| THE Reynard Film Ltd | Information & communication | 2022 |
| THE Rose and Crown (Chilton) Limited | Real estate | 2019 |
| THE Rudman-Hawkins Group Limited | Financial services | 2025 |
| THE Sandford Bexleyheath Limited | Health & social care | 2023 |
| THE Sandford Suite Holdings Limited | Health & social care | 2024 |
| THE Sandford Suite Limited | Health & social care | 2023 |
| THE Secret Door Homes Ltd | Hospitality | 2023 |
| THE SEN Hive Ltd | Education | 2023 |
| THE Shakespeare, Bicester Limited | Hospitality | 2019 |
| THE Sky Wave Distilling Company Limited | Manufacturing | 2019 |
| THE Society for Cardiac Science and Technology Ltd | Professional & scientific | 1965 |
| THE Society of Critical Care Technologies Limited | Public administration | 2012 |
| THE Stables (Stratton Audley) Management Limited | Real estate | 2003 |
| THE Systems Academy Ltd | Education | 2025 |
| THE Tamarindo Consultancy Group Ltd | Administrative & support | 2013 |
| THE Tennens Benton Partnership Limited | Health & social care | 2014 |
| THE Tile Colosseum Limited | Wholesale & retail | 2025 |
| THE Traveling Chef Ltd | Hospitality | 2017 |
| THE Triangle Surgery Ltd | Health & social care | 2010 |
| THE Tythe Barn Launton Limited | Real estate | 2013 |
| THE Unicorn Club Limited | Construction | 2017 |
| THE Village Hair & Beauty Salon Limited | Other services | 2019 |
| THE Wandering Angler Limited | Administrative & support | 2019 |
| THE Water Tower Management Company Limited | Households | 2009 |
| THE Weyland Hall Management Company Limited | Other services | 1991 |
| THE White House Aesthetics and Wellness Limited | Other services | 2026 |
| THE Whole Horse Approach Ltd | Agriculture & fishing | 2024 |
| THE Winskill Company Limited | Professional & scientific | 2005 |
| THE Woid Ltd | Professional & scientific | 2025 |
| THE Wonderlab Group Ltd | Arts & recreation | 2025 |
| THE Wood Specialists Ltd | Construction | 2020 |
| Thehealthytree Company Ltd | Wholesale & retail | 2016 |
| Theo GEE Ltd | Information & communication | 2019 |
| Thermadent Ltd | Manufacturing | 2011 |
| Thermalec Control Systems Limited | Manufacturing | 2000 |
| Thestreetwearhouse Ltd | Wholesale & retail | 2026 |
| Thicamtuvu Ltd | Wholesale & retail | 2023 |
| Third ACT Films Limited | Professional & scientific | 2023 |
| Thomas Castle Ltd | Administrative & support | 2024 |
| Thomas Consult Limited | Administrative & support | 2003 |
| Thomas PAD Trade Ltd | Hospitality | 2025 |
| Three Point Fire Ltd | Arts & recreation | 2016 |
| Threshold Investments Limited | Real estate | 1987 |
| Thrive Pole and Aerial Limited | Arts & recreation | 2024 |
| Tiami Research Limited | Professional & scientific | 2022 |
| Tidy Bricks Property Ltd | Real estate | 2021 |
| Tigerj Ltd | Wholesale & retail | 2026 |
| Tijdj Ltd | Real estate | 2026 |
| Tillageuk Ltd | Wholesale & retail | 2025 |
| Timbermoru-Workshop Limited | Manufacturing | 2022 |
| Time Definite Logistics Limited | Transport & logistics | 2018 |
| Time Definite Removals Limited | Transport & logistics | 2024 |
| Time to Lease Ltd | Professional & scientific | 2003 |
| Titanlogic Limited | Extraterritorial | 1998 |
| TJ Accounts Ltd | Professional & scientific | 2016 |
| TJ Holland Limited | Wholesale & retail | 1999 |
| TJ Royal Rentals and Renovations Ltd | Real estate | 2023 |
| TLC Autorefinishing Limited | Wholesale & retail | 1999 |