| THE Darwin Partnership Ltd | Professional & scientific | 2007 |
| THE Gate PUB Bryants Bottom Limited | Hospitality | 2021 |
| THE Green Pantry Group Limited | Hospitality | 2019 |
| THE Homestead Residents Association (Thame) Limited | Households | 1990 |
| THE Hub Marketing Services Limited | Wholesale & retail | 1998 |
| THE Loafer’S Bakery Ltd | Wholesale & retail | 2025 |
| THE Misbourne | Education | 2017 |
| THE New Homes Experts Ltd | Real estate | 2024 |
| THE Old Garden Centre Management Company Limited | Households | 1994 |
| THE Oliver Family LLP | | 2006 |
| THE Pentlands Freehold Ownership Company Limited | Households | 2004 |
| THE People Animators Limited | Professional & scientific | 2002 |
| THE Popcorn Box Ltd | Real estate | 2023 |
| THE Practice Properties Limited | Real estate | 2005 |
| THE Practice Surgeries Limited | Health & social care | 2008 |
| THE Practice U Surgeries Limited | Health & social care | 2006 |
| THE Prestwood Sports and Leisure Association Limited | Arts & recreation | 1999 |
| THE Ride Room Ltd | Arts & recreation | 2026 |
| THE Safer Choice Limited | Professional & scientific | 2009 |
| THE Sauna Spot Community Interest Company | Other services | 2025 |
| THE Screen Arts Studio Limited | Information & communication | 2011 |
| THE Shed Project Limited | Professional & scientific | 2014 |
| THE Uncommon Kingfisher Limited | Professional & scientific | 2017 |
| THE Wedding Business Club Ltd | Other services | 2019 |
| THE Yard by Cromar Carpets Ltd | Wholesale & retail | 2022 |
| Thehaven Ltd | Information & communication | 2014 |
| Themealert Limited | Information & communication | 1987 |
| Thinkads Limited | Professional & scientific | 2025 |
| Thirteen Year Investments Limited | Real estate | 2022 |
| Thoughtnet Ltd | Information & communication | 2008 |
| Toastwear Limited | Wholesale & retail | 2002 |
| Tompson Design Limited | Professional & scientific | 1992 |
| Total Herbal Confusion Limited | Administrative & support | 1996 |
| Touchstone Psychotherapies Limited | Health & social care | 2023 |
| Townend Court Limited | Real estate | 1992 |
| Trade Ally Ltd | Information & communication | 2025 |
| Trade Consulting Ltd | Professional & scientific | 2007 |
| Trade House Dias Limited | Administrative & support | 2007 |
| Trade Spot Exchange Limited | Professional & scientific | 2015 |
| Trafford Close Residents Limited | Households | 2013 |
| Trevor Stephens Ltd | Administrative & support | 2017 |
| Tribe Investment Holdings Ltd | Financial services | 2020 |
| Trip Design Limited | Professional & scientific | 2010 |
| Trips Together Limited | Administrative & support | 2025 |
| Troctimber Ltd | Construction | 2018 |
| Trowprest Management Company Limited | Real estate | 1975 |
| True Legacy Limited | Arts & recreation | 2014 |
| Trustees of the Agripower EBT Limited | Professional & scientific | 2008 |
| Tudor Marketing (UK) Ltd | Professional & scientific | 2003 |
| Turquoise Productions Ltd | Administrative & support | 2012 |
| TWENTY9THREE Ltd | Other services | 2025 |
| Twin Oaks Residents Association Limited | Households | 1987 |
| Twisted Easel Ltd | Construction | 2018 |
| Two Bald MEN Ltd | Information & communication | 2025 |
| Two Chair Limited | Other services | 2018 |
| UK Business Transformation Ltd | Professional & scientific | 2016 |
| Underwood Associates Consulting Limited | Administrative & support | 2010 |
| Unfollowers Ltd | Information & communication | 2023 |
| Unicorn IT Ltd | Information & communication | 2017 |
| Union of Tamileelam People Ltd | Wholesale & retail | 2025 |
| Valuenomix Limited | Real estate | 2002 |
| Vanderbilt House Limited | Administrative & support | 2012 |
| Vandevelde Graham Ltd | Professional & scientific | 2018 |
| Venterra Developments Limited | Real estate | 2020 |
| Village Smile Clinics Holdings Ltd | Financial services | 2026 |
| Village Smile Clinics Ltd | Health & social care | 2023 |
| Village Smile Holdings Ltd | Financial services | 2025 |
| Visengine Partnership LLP | | 2017 |
| Visual Insight Solutions Limited | Information & communication | 2010 |
| VM Accountants Ltd | Professional & scientific | 2014 |
| Vocability Limited | Arts & recreation | 2014 |
| W.H. Clayton (Lands) Limited | Real estate | 1986 |
| Waterway Property Group Ltd | Real estate | 2021 |
| Waylett Barnes Consulting Ltd | Information & communication | 2011 |
| Wealthbird Limited | Information & communication | 2022 |
| Webber Bands Solutions Ltd | Information & communication | 2019 |
| Wellfleet | Other services | 2017 |
| West END Court 2 RTM Company Ltd | Households | 2016 |
| West END Court 3 RTM Company Ltd | Households | 2016 |
| West END Court 4 RTM Company Ltd | Households | 2016 |
| West END Court RTM Co Ltd | Households | 2015 |
| West Ruislip(Block C)Management Company Limited | Households | 1984 |
| Wexham Road (Slough) Limited | Households | 1986 |
| Whiteacre Property Limited | Real estate | 2026 |
| Wild Kite Bottle Shop Ltd | Wholesale & retail | 2017 |
| Williams Boiler Services Ltd | Construction | 2019 |
| Willis Investment Properties Ltd | Financial services | 2023 |
| Wisteria & Forsythia Court (NH) Management Limited | Households | 2006 |
| Wolfe Cubes Limited | Professional & scientific | 2021 |
| Woodrook Ltd | Real estate | 2015 |
| Woods Place Wendover Limited | Real estate | 2003 |
| Woodside FIC | Financial services | 2024 |
| Woodville (NHE) Management Company Limited | Households | 2018 |
| Wright Carpentry Ltd | Construction | 2006 |
| Wrights' Yard Management Limited | Households | 2002 |
| Wychwood Rise Properties Ltd | Real estate | 2026 |
| Wychwood Training Ltd | Education | 2023 |
| Wyldscapes Ltd | Professional & scientific | 2026 |
| XY Locate Limited | Information & communication | 2021 |
| Yarbury Limited | Professional & scientific | 2002 |