| THE Outdoor Thinking Company Ltd | Education | 2018 |
| THE Outhouse Brewery Ltd | Manufacturing | 2020 |
| THE Paddocks (Barkham) Management Company Limited | Households | 2008 |
| THE Pestle Ltd | Hospitality | 2023 |
| THE Policy House Limited | Professional & scientific | 2013 |
| THE Preston Associates USA Ltd | Administrative & support | 2014 |
| THE Production Lens UK Limited | Information & communication | 2025 |
| THE Prospective Management Company Limited | Real estate | 2007 |
| THE Queens Head Wokingham Ltd | Wholesale & retail | 2009 |
| THE Radiance Medical and Aesthetic Dermatology Clinic Limited | Wholesale & retail | 2020 |
| THE Raising Indian B&R Ltd | Hospitality | 2024 |
| THE Recruitment Centre Ltd | Administrative & support | 2014 |
| THE Reset Group Limited | Wholesale & retail | 2018 |
| THE Rialto Consultancy Limited | Professional & scientific | 2004 |
| THE Richmond Marketing Consultancy Limited | Professional & scientific | 2008 |
| THE Rigby Partnership Limited | Real estate | 2010 |
| THE Robertsons & Crawford Organization Limited | Financial services | 2016 |
| THE Ruppell Club Ltd | Professional & scientific | 2021 |
| THE Salon Agent Ltd | Other services | 2026 |
| THE Secret EA Limited | Hospitality | 2024 |
| THE Showhome Cleaning Company Ltd | Administrative & support | 2020 |
| THE Sixth Connaught Park Residents Association Limited | Real estate | 1989 |
| THE Starting Gate Management Limited | Real estate | 2006 |
| THE Station Furniture Co Ltd | Wholesale & retail | 2003 |
| THE Strategy Pack Ltd | Professional & scientific | 2024 |
| THE Supply Chain Consulting Group Ltd | Professional & scientific | 2015 |
| THE Tailored Workplace Ltd | Wholesale & retail | 2021 |
| THE Tamarind Tree Wokingham Limited | Hospitality | 2026 |
| THE Telephone Assassin Ltd | Professional & scientific | 2013 |
| THE Tooth Fairy Twyford Ltd | Health & social care | 2026 |
| THE Training Cloud Ltd | Administrative & support | 2016 |
| THE Villas (Woking) Management Company Limited | Real estate | 2003 |
| THE Vineyard Gateway Ltd | Wholesale & retail | 2021 |
| THE Warfield Barbers Limited | Other services | 2024 |
| THE Wedding Studio Berkshire Ltd | Wholesale & retail | 2024 |
| THE Welding Shop Limited | Construction | 2003 |
| THE Well House Property Management Company Limited | Real estate | 2016 |
| THE Wharf Padworth Management Company Limited | Households | 1997 |
| THE Wheeler Partnership Ltd | Professional & scientific | 2016 |
| THE White Cleaning Company (the Counties) Limited | Administrative & support | 2017 |
| THE Wide Awake Club Sleep Consultancy Ltd | Extraterritorial | 2023 |
| THE Wildflower Gardening Company Limited | Administrative & support | 2019 |
| THE Wokingham Paper Limited | Other services | 2018 |
| THE Woodlands (Finchampstead) Management Company Limited | Households | 1994 |
| THE Zero Miles Meat Company Ltd | Agriculture & fishing | 2026 |
| Theal Group Ltd | Hospitality | 2024 |
| Thenewt Ltd | Professional & scientific | 2025 |
| Thepackhub Limited | Professional & scientific | 2013 |
| Theralux Limited | Wholesale & retail | 2023 |
| Theraponies Ltd | Extraterritorial | 2022 |
| There's a Space Limited | Information & communication | 2025 |
| Thermalcomp Limited | Wholesale & retail | 2014 |
| Thermalseal Spray Foam Removal & Roofing Ltd | Construction | 2024 |
| Thermoshield Ltd | Information & communication | 2025 |
| Thez One Limited | Information & communication | 2023 |
| Thick Film Accessories Limited | Wholesale & retail | 2018 |
| Thingymajig Limited | Professional & scientific | 2025 |
| Think Outside in Limited | Administrative & support | 2009 |
| THINK86 Limited | Information & communication | 2022 |
| Thirlmere Bidco Limited | Financial services | 2025 |
| Thirlmere Midco Limited | Financial services | 2025 |
| Thirlmere Topco Limited | Financial services | 2025 |
| Thirstead Ltd | Hospitality | 2019 |
| Thirukann Ventures Ltd | Real estate | 2024 |
| This Little Piggy Limited | Wholesale & retail | 2016 |
| Thomas Associates Property Maintenance Ltd | Construction | 2015 |
| Thomas Capital Ltd | Real estate | 2017 |
| Thomas Preston & Associates Limited | Administrative & support | 2007 |
| Thomas William Jewellery Limited | Wholesale & retail | 2015 |
| Thompson Gillespie LLP | | 2024 |
| Thornbury Green Management Company Limited | Households | 1992 |
| Thorntac Limited | Information & communication | 1992 |
| Thota Estates Ltd | Real estate | 2026 |
| Thousandshores (UK) Ltd | Wholesale & retail | 2022 |
| Three Growth Ltd | Information & communication | 2025 |
| Thrive Counselling and Consultancy Ltd | Other services | 2026 |
| Thrive HR Limited | Administrative & support | 2020 |
| Throttled Film Limited | Information & communication | 2026 |
| Through the Loop Consulting Limited | Agriculture & fishing | 1996 |
| Thunder T Services Limited | Construction | 2008 |
| THX1138 Ltd | Professional & scientific | 2008 |
| Tidmarsh Grange Management Company Limited | Households | 2006 |
| Tidy Group Commercial Cleaning Ltd | Administrative & support | 2025 |
| Tieva Services Limited | Information & communication | 2003 |
| Tillybridge Capital Limited | Real estate | 2025 |
| TIM Russ & Co Limited | Real estate | 2024 |
| Timber and Form Limited | Manufacturing | 2019 |
| Timber Products Direct Ltd | Wholesale & retail | 2014 |
| Timber Windows Direct Ltd | Wholesale & retail | 2014 |
| Timcomuk Ltd. | Other services | 2024 |
| Time for YOU Horsham Limited | Households | 2012 |
| Time for YOU Wokingham Ltd | Administrative & support | 2025 |
| Timmo Ltd | Professional & scientific | 2012 |
| Tindall Engineering Limited | Manufacturing | 1986 |
| Tinij Ltd | Health & social care | 2013 |
| Tink Boutique Ltd | Other services | 2025 |
| Tira Business Solutions Ltd | Professional & scientific | 2011 |
| Titaguasdreamco Ltd | Administrative & support | 2023 |
| Titan Home Group Limited | Construction | 2024 |
| Titchfield (Tadley) Management Company Limited | Households | 1981 |