| Syles Farm Limited | Agriculture & fishing | 1961 |
| Symonds Research Limited | Information & communication | 2008 |
| T Merrick Ltd | Construction | 2012 |
| Talisman Caps and Closures Limited | Extraterritorial | 2017 |
| Talisman Group Crewkerne Ltd | Manufacturing | 1998 |
| Talisman Group Ltd | Manufacturing | 2012 |
| Talisman Group Malvern Ltd | Manufacturing | 2002 |
| Talisman Group Rochester Ltd | Manufacturing | 2003 |
| Talisman Mouldings Limited | Extraterritorial | 2017 |
| Talisman Security Seals Limited | Extraterritorial | 2017 |
| Tannery Court (Management) Limited | Households | 1987 |
| Taylokes Distribution Limited | Wholesale & retail | 2023 |
| Tcgh Developments Ltd | Real estate | 2023 |
| Tcgh Ltd | Construction | 2022 |
| THE Acme Drinks Company Limited | Wholesale & retail | 2020 |
| THE Burger Shed Ltd | Hospitality | 2023 |
| THE Business of Stuff Ltd | Information & communication | 2024 |
| THE Engineering Shed Ltd | Manufacturing | 2009 |
| THE Flyer Publications Ltd | Information & communication | 2021 |
| THE London Festival Ltd | Arts & recreation | 2019 |
| THE Magnificent Agency Limited | Arts & recreation | 2014 |
| THE Menders Limited | Professional & scientific | 2011 |
| THE Plan Shop(Sw) Ltd | Wholesale & retail | 2004 |
| Tittle Limited | Wholesale & retail | 2015 |
| TR Caravan Services Limited | Manufacturing | 2016 |
| TRN Electrical Ltd | Construction | 2003 |
| Trotters Family Butchers Limited | Manufacturing | 2021 |
| TS Cards and Retail (Chard) Limited | Wholesale & retail | 2024 |
| TS Cards and Retail Limited | Wholesale & retail | 2022 |
| Unipat Ltd | Wholesale & retail | 2026 |
| Unique Tiles Ltd | Manufacturing | 2011 |
| Uniscope (Euro) Limited | Manufacturing | 1982 |
| Vape and Juice South West Ltd | Wholesale & retail | 2018 |
| VES Precision Limited | Manufacturing | 1991 |
| Vicfalls Cleaning Services Ltd | Administrative & support | 2024 |
| Voyagers Hook Fishing Company Ltd | Wholesale & retail | 2025 |
| Wahoo Learning Limited | Financial services | 2016 |
| Watertight Building Services Ltd | Administrative & support | 2014 |
| Wayford Water Company Limited | Water & waste | 2012 |
| Wayford Westcountry Wines Limited | Agriculture & fishing | 2007 |
| Wayford Woofs Ltd | Agriculture & fishing | 2022 |
| Weight Loss Wardrobe Ltd | Wholesale & retail | 2023 |
| West Country Escapes Ltd | Hospitality | 2025 |
| Westover Garage Limited | Wholesale & retail | 2007 |
| Wight Meadow Havens Ltd | Hospitality | 2019 |
| Wills Welding Ltd | Manufacturing | 2003 |
| Winters Property Ltd | Real estate | 2024 |
| Wirelec Ltd | Construction | 2024 |
| Woodland Property Law Limited | Professional & scientific | 2025 |
| Wordsmith Limited | Construction | 2023 |
| Wornstreet Ltd | Wholesale & retail | 2026 |
| Wycherley Ltd | Manufacturing | 2026 |
| Zupt Limited | Administrative & support | 2006 |