| Ripple Accountancy Limited | Professional & scientific | 2018 |
| Riverbrue Kennels Ltd | Agriculture & fishing | 2024 |
| RJB (South West) Limited | Construction | 2008 |
| RJV Properties Limited | Real estate | 2024 |
| Rochester Communications Limited | Professional & scientific | 2017 |
| Rowlands Consultancy Ltd | Information & communication | 2023 |
| S a J Systems Limited | Administrative & support | 2007 |
| S M Building and Landscaping Limited | Construction | 2022 |
| S&A 22 Logistics Ltd | Transport & logistics | 2024 |
| S/West Recycling Ltd | Water & waste | 2015 |
| Saagar Indian Ltd | Hospitality | 2020 |
| SAN Pellegrino Limited | Administrative & support | 2025 |
| Savvy Ronin Limited | Information & communication | 2018 |
| SB Construction & Property Services Ltd | Construction | 2025 |
| Scafell Cottage Ltd | Hospitality | 2021 |
| Scoreboards Online Limited | Manufacturing | 2024 |
| SDA Plant Services Limited | Manufacturing | 2022 |
| Sea Breeze Parks Ltd | Administrative & support | 2009 |
| Secret World Limited | Wholesale & retail | 1998 |
| Secret World Wildlife Rescue | Professional & scientific | 2003 |
| Sedgemoor Caravans Limited | Wholesale & retail | 2017 |
| Select Homecare Direct Ltd | Health & social care | 2014 |
| Select Support + Ltd | Public administration | 2021 |
| Servicestars NO.2 Ltd | Real estate | 2018 |
| Sevra Group Limited | Construction | 2025 |
| Sewage Treatment Services Limited | Water & waste | 2003 |
| Shearcraft Engineering Ltd | Professional & scientific | 2003 |
| Shire Gifts Ltd | Administrative & support | 2016 |
| Silver Spur Events Limited | Hospitality | 2021 |
| Slade Kitchens Limited | Manufacturing | 2004 |
| Smooth Finish Property Maintenance Ltd | Construction | 2026 |
| Solar Engineering (SW) Limited | Construction | 2008 |
| Somerlap Trustee Limited | Professional & scientific | 2022 |
| Somerset Business Centre Limited | Real estate | 2019 |
| Somerset Coffee & Vending Ltd | Manufacturing | 2024 |
| Somerset Cricket League Limited | Arts & recreation | 2024 |
| Somerset Cuisine Limited | Manufacturing | 1978 |
| Somerset Inns Limited | Hospitality | 2019 |
| Sopha Limited | Wholesale & retail | 2015 |
| South West Build Group Ltd | Construction | 2025 |
| Southern Fuels Limited | Administrative & support | 2001 |
| Southwest Domestic Services Ltd | Construction | 2024 |
| SP Engineering Design Services Limited | Professional & scientific | 2025 |
| Space Selfstore Ltd | Administrative & support | 2013 |
| Speks Consulting Limited | Professional & scientific | 2022 |
| Stablecrypto Ltd | Financial services | 2025 |
| Stetter Consulting Limited | Real estate | 2005 |
| Stillwell Property Group Limited | Real estate | 2021 |
| Strawberry Line Tea Rooms Ltd | Hospitality | 2019 |
| Studio Gallantry Limited | Wholesale & retail | 2026 |
| Styles Campervans Ltd | Manufacturing | 2021 |
| Super Surprise Limited | Wholesale & retail | 2012 |
| Superiorpowders Limited | Manufacturing | 2008 |
| Surveyauto Limited | Manufacturing | 1996 |
| Swallow Drinks South West Ltd | Manufacturing | 2008 |
| Swimtime TA Limited | Education | 2014 |
| Sygnifiq Limited | Information & communication | 2022 |
| T & R Plant Hire Limited | Administrative & support | 2010 |
| Taunton Kitchen Company Limited | Manufacturing | 2001 |
| Taylor & Kilduff Ltd | Manufacturing | 2010 |
| Tecni Limited | Manufacturing | 2005 |
| Tecni-Cable Ltd | Extraterritorial | 2009 |
| Tecni-Lift Limited | Extraterritorial | 2009 |
| Tecsec Ltd | Manufacturing | 2022 |
| TG Collective Ltd | Construction | 2025 |
| THE Entrepreneurs Accountant (Ripple) Limited | Professional & scientific | 2011 |
| THE FGA Partnership LLP | | 2016 |
| THE Grange Brent Knoll Ltd | Hospitality | 2015 |
| THE Guest Group Limited | | 1990 |
| THE Mortgage Mark Ltd | Financial services | 2022 |
| THE Oliver Property Portfolio Ltd | Real estate | 2024 |
| THE Phillips F LP | | 2013 |
| THE Scotch EGG Company (SW) Ltd | Manufacturing | 2020 |
| THE Smokehouse Kitchen and Takeaway Ltd | Hospitality | 2018 |
| THE Strange Catch Ltd | Hospitality | 2020 |
| Thinking Data Limited | Information & communication | 2009 |
| Tiaphoenix LLP | | 2023 |
| Time for Inclusion Ltd | Extraterritorial | 2021 |
| TJ Retreats Limited | Real estate | 2024 |
| Toner Time Ltd | Information & communication | 2016 |
| Tools Vehicle Electrics Ltd | Wholesale & retail | 2008 |
| Top Wash Highbridge Ltd | Administrative & support | 2026 |
| Total Gym Store Ltd | Wholesale & retail | 2025 |
| Total Plumb Southwest Ltd | Construction | 2025 |
| Tourer Techs Caravan Services Limited | Administrative & support | 2016 |
| Trade Bros London Ltd | Wholesale & retail | 2025 |
| Tricord Investments Limited | Real estate | 2019 |
| Triton Upholstery (1986) Limited | Water & waste | 1986 |
| Troy MP Limited | Financial services | 2006 |
| True Care Supplies Limited | Wholesale & retail | 2026 |
| Tucker Woodworks Ltd | Construction | 2023 |
| Twenty Two Services Limited | Real estate | 2017 |
| UK Ponies & Horses Limited | Arts & recreation | 2020 |
| Uniform Engineering Limited | Manufacturing | 2021 |
| VA Virtual Office Services Ltd | Professional & scientific | 2019 |
| Vantech Commercials Ltd | Wholesale & retail | 2020 |
| Vault of Gold Limited | Wholesale & retail | 2026 |
| Versa Engineering Limited | Manufacturing | 2009 |
| Vexmor Autochem Ltd | Wholesale & retail | 2026 |
| Vibe Connect Ltd | Manufacturing | 2020 |