| Render-It Ltd | Construction | 2025 |
| Rosscoe's Roofing Ltd | Construction | 2016 |
| RP Aviation Limited | Transport & logistics | 2012 |
| RS Commercial Lets Ltd | Real estate | 2021 |
| Scallop Ltd | Wholesale & retail | 2024 |
| Sky Riders Paragliding & Paramotoring Limited | Arts & recreation | 2024 |
| Skyview Construction Ltd | Construction | 2025 |
| Someone Borrowed Ltd | Arts & recreation | 2025 |
| Somerset Management Consulting Ltd | Administrative & support | 2015 |
| Somerset Osteopathic Clinic Ltd | Health & social care | 2018 |
| Somerset Square EGG Company Ltd | Financial services | 2025 |
| South Petherton Carnival Limited | Arts & recreation | 2000 |
| ST Elizabeths Way (Residents) Limited | Real estate | 1994 |
| Starcrest Design Limited | Professional & scientific | 1990 |
| Stats Powers Ltd | Professional & scientific | 2019 |
| Stevens Construction & Property Services Ltd | Construction | 2020 |
| Street Catering Limited | Hospitality | 2014 |
| Stropt Ltd | Wholesale & retail | 2025 |
| Sustainable Refurbishments Limited | Construction | 2022 |
| Take Art Limited | Arts & recreation | 1987 |
| THE Bartons (Yeabridge) Management Limited | Households | 1992 |
| THE Beehive Sweets & Chocolate Company Ltd | Wholesale & retail | 2019 |
| THE Business Fabrik Ltd | Administrative & support | 2024 |
| THE Drawing Room- Regal INK Ltd | Professional & scientific | 2020 |
| THE Fourth Lever Limited | Professional & scientific | 2026 |
| THE Manse Management Company Limited | Households | 1992 |
| THE Van Cave Ltd | Wholesale & retail | 2020 |
| THE Wedding Wine Company Limited | Manufacturing | 2020 |
| Thenext Media Ltd | Information & communication | 2025 |
| TOC Consulting Limited | Information & communication | 2024 |
| Top CUT Barber Petherton Ltd | Other services | 2025 |
| Top Golden Barber Ltd | Other services | 2024 |
| Transfurb Limited | Manufacturing | 2025 |
| Two Brothers Building Ltd | Extraterritorial | 2015 |
| Two Magpies Village Cafe Limited | Hospitality | 2023 |
| Vesta Family Limited | Real estate | 2020 |
| Victoria Consulting LLP | | 2013 |
| Watermark Publications (UK) Limited | Information & communication | 1988 |
| West Country Eggs Limited | Agriculture & fishing | 1986 |
| Wickens Distribution Ltd | Wholesale & retail | 2023 |
| Wingtrim Paragliding Services Limited | Other services | 2021 |
| Xone Engineering Limited | Professional & scientific | 2024 |