| THE Joinery Shop Cowes Limited | Manufacturing | 2022 |
| THE Little Collective Group Ltd | Hospitality | 2026 |
| THE Lost Mill Bakery Ltd | Manufacturing | 2022 |
| THE Modern Agent Ltd | Real estate | 2015 |
| THE Reallyhelpy Company Ltd | Information & communication | 2018 |
| THE Rebuild Coach Limited | Health & social care | 2019 |
| THE Reformer Studio IOW Limited | Health & social care | 2026 |
| THE Ripple Effect (Projects) Limited | Professional & scientific | 2007 |
| THE Rosetta Group Ltd | Information & communication | 2016 |
| THE Royal Yacht Squadron Isle of Wight Foundation | Other services | 2014 |
| THE Sail Loft Ltd | Professional & scientific | 2020 |
| THE Sun Calbourne Limited | Hospitality | 2025 |
| THE Wight List Ltd | Information & communication | 2026 |
| THE Woodland Hamper Company Ltd | Wholesale & retail | 2025 |
| The-Om-Uk Ltd | Professional & scientific | 2021 |
| Them (IW) Ltd | Professional & scientific | 2009 |
| Theribskipper.Com Ltd | Transport & logistics | 2026 |
| Through Life Design Ltd | Professional & scientific | 2018 |
| Tiffins of Cowes Limited | Hospitality | 1992 |
| TIM Cheese Limited | Administrative & support | 2025 |
| Time to Live Media Limited | Information & communication | 2012 |
| Tipsy Wight Ltd | Manufacturing | 2013 |
| TJ Car Services Ltd | Transport & logistics | 2016 |
| TMF Systems Ltd | Professional & scientific | 2008 |
| Toast on the Coast Ltd | Hospitality | 2024 |
| Together 4 CIC | Professional & scientific | 2025 |
| TOM Colwill Coaching Ltd | Other services | 2025 |
| Tombleson Associates Limited | Professional & scientific | 2013 |
| Toney Hydraulic Services Limited | Manufacturing | 2020 |
| Tongpim Ltd | Hospitality | 2025 |
| TOP2TOE Therapies Ltd | Other services | 2016 |
| Topographical and Engineering Surveys Ltd | Professional & scientific | 2006 |
| Torlock Limited | Construction | 2005 |
| Total Repairs Solutions Ltd | Manufacturing | 2025 |
| Total Survey Solutions (UK) Ltd | Professional & scientific | 2011 |
| Tpag Limited | Wholesale & retail | 2025 |
| Tropical Engineering Limited | Manufacturing | 1995 |
| Tryosteopathy Limited | Health & social care | 2016 |
| TSW Designs Ltd | Professional & scientific | 2026 |
| Tudor Smith Estates Limited | Real estate | 1998 |
| Turning IT on ITS Head Limited | Information & communication | 2003 |
| Two to One (Cheltenham) Limited | Education | 2024 |
| Tyson Developments (IOW) Limited | Construction | 2004 |
| Ultima Generatio Ltd | Professional & scientific | 2025 |
| Ultradev Limited | Professional & scientific | 2002 |
| Union Inn Cowes Ltd | Hospitality | 2012 |
| Unique Seaflex Limited | Manufacturing | 1987 |
| Unlock Solutions Ltd | Professional & scientific | 2024 |
| V a Forsyth Limited | Professional & scientific | 2021 |
| Valiant Service IOW Limited | Construction | 2022 |
| Vantage Point Cowes Limited | Real estate | 2016 |
| Vectis ARB Ltd | Administrative & support | 2025 |
| Vectis Crew Management Limited | Transport & logistics | 2007 |
| Vectis Developments Ltd | Construction | 2010 |
| Vectis Diving Services and Training Ltd | Professional & scientific | 2020 |
| Vectis Ferries Limited | Transport & logistics | 2025 |
| Vectis Maritime Limited | Transport & logistics | 2022 |
| Vectis Refrigeration Ltd | Construction | 2015 |
| Vectis Sustainable Engineering Ltd | Professional & scientific | 2020 |
| Vectis View Windows and Doors Limited | Construction | 2026 |
| Victoria Place (Surbiton) RTM Company Ltd | Households | 2023 |
| Volpe Charters LLP | | 2007 |
| W COY Ltd | Information & communication | 2017 |
| W.H. Brading & SON Ltd | Construction | 1981 |
| W.Hanbury Ltd | Information & communication | 2025 |
| Waiheke Holdings Ltd | Real estate | 2018 |
| Warren Godfrey Limited | Manufacturing | 2021 |
| Waterfront House Limited | Real estate | 2021 |
| Watersee Ltd | Financial services | 2019 |
| Waterside (IOW) Ltd | Real estate | 2018 |
| Waterside 72 Limited | Real estate | 2016 |
| Waterstone Projects Ltd | Construction | 2011 |
| Wavelength Electrical Limited | Construction | 2025 |
| Wayfinding Together Ltd | Administrative & support | 2025 |
| Waypoint Yacht Brokers Ltd | Wholesale & retail | 2014 |
| WCP Partners Ltd | Real estate | 2024 |
| WED & Prosper Ltd | Hospitality | 2023 |
| West Indian Ocean Research Initiative Ltd | Professional & scientific | 2020 |
| Westcourt (Cowes) Limited | Financial services | 2001 |
| Weston Cottage Management Limited | Households | 2004 |
| WGL Farms (IW) Limited | Agriculture & fishing | 2023 |
| Whitewight Laundry Ltd | Other services | 2023 |
| Wight Bluesky Arts Community Interest Company | Arts & recreation | 2007 |
| Wight Cloud Ltd | Information & communication | 2016 |
| Wight Composites Ltd | Manufacturing | 2024 |
| Wight Dog Limited | Wholesale & retail | 2023 |
| Wight Drainage Ltd | Administrative & support | 2026 |
| Wight Driveways & Patios Ltd | Administrative & support | 2025 |
| Wight Economics Limited | Professional & scientific | 2009 |
| Wight Expeditions Ltd | Arts & recreation | 2022 |
| Wight Investments Ltd | Real estate | 2009 |
| Wight Joinery Services Ltd | Manufacturing | 2024 |
| Wight Lease Limited | Financial services | 2019 |
| Wight Property Management Limited | Real estate | 2025 |
| Wight Rocking Rollers Ltd | Arts & recreation | 2023 |
| Wight Roofing & Building Ltd | Construction | 2025 |
| Wight Roofing Ltd | Construction | 2024 |
| Wight Seasons Social Farming Limited | Health & social care | 2018 |
| Wight Works Ltd | Construction | 2018 |
| Wightsight Cowes Limited | Wholesale & retail | 2020 |