| Somerset County Show Ltd | Arts & recreation | 2018 |
| Somerset Equestrian and Contracting Limited | Transport & logistics | 2019 |
| Somerset Grab Hire Ltd | Water & waste | 2018 |
| Somerset Inn Micropub Ltd | Hospitality | 2024 |
| Somerset Media Marketing LP | | 2023 |
| Somerset Medical Aesthetics Limited | Health & social care | 2022 |
| Somerset Mobile Bars Ltd | Hospitality | 2024 |
| Sorcerer Rotational Ltd | Manufacturing | 2017 |
| South Chard Motors Ltd | Wholesale & retail | 2024 |
| South Somerset Holiday Park Limited | Hospitality | 2003 |
| South West Compliance Ltd | Administrative & support | 2014 |
| South West Rehab Limited | Health & social care | 2012 |
| South West Tippers Ltd. | Water & waste | 2016 |
| Southend Mews Limited | Households | 1994 |
| Southern Heaven Estates Ltd | Hospitality | 2023 |
| Spiller & Sons Ltd | Construction | 2021 |
| Spillers of Chard Limited | Wholesale & retail | 1986 |
| Squeeze Storage Ltd | Real estate | 2024 |
| SR Creative Designs Ltd | Professional & scientific | 2026 |
| SS HR Consulting Ltd | Administrative & support | 2013 |
| ST Clements Hill Limited | Construction | 2017 |
| Stada Consultants Limited | Administrative & support | 2014 |
| Stag Enterprises Limited | Construction | 1993 |
| Stanway Close Management Company Limited | Households | 1982 |
| Star Citizen Ltd | Wholesale & retail | 2023 |
| Static Control Products Ltd | Administrative & support | 2016 |
| Stephen Beswetherick Opticians Ltd | Wholesale & retail | 2014 |
| Stephen J Pratten Associates Limited | Professional & scientific | 1997 |
| Sterling Southgate Ltd | Financial services | 2020 |
| Steve - Boy's and Men's Health Network CIC | Health & social care | 2023 |
| Stibbear Farm Management Company Limited | Real estate | 2018 |
| Stone Circle Ventures Limited | Financial services | 2025 |
| Stoneleigh Court Management (Taunton) Limited | Households | 1974 |
| Structureserve Ltd | Information & communication | 2024 |
| Studio Lemonade Ltd | Professional & scientific | 2022 |
| Sumyyacare Ltd | Public administration | 2019 |
| Sundial Windows and Redman Construction Limited | Construction | 2001 |
| Sunshine Car Transporters Limited | Transport & logistics | 2022 |
| Surrey Savate Ltd | Information & communication | 2024 |
| Swandown Agency Limited | Administrative & support | 2023 |
| Swandown Management Limited | Administrative & support | 2011 |
| Swandown Payroll Services Limited | Administrative & support | 2021 |
| Sweet Building Contractors Ltd | Construction | 2022 |
| Switchgear Clothing Ltd. | Wholesale & retail | 2017 |
| Sycamore Court Management (Chard) Limited | Households | 1979 |
| Szok Limited | Wholesale & retail | 2018 |
| T G Pugh Property Maintenance and Roofing Ltd | Construction | 2026 |
| T J Turner Limited | Real estate | 2017 |
| T K & MAC Limited | Hospitality | 2015 |
| TAG to Sell Ltd | Administrative & support | 2022 |
| Taksica Rides Ltd | Transport & logistics | 2025 |
| Talentsmiths Limited | Administrative & support | 2016 |
| Tamoz Limited | Health & social care | 2010 |
| Tamsyn Froom Architecture Ltd | Professional & scientific | 2019 |
| TAP Tiling Ltd | Construction | 2009 |
| Tapstone Brewing Company Ltd | Manufacturing | 2013 |
| Tarr Residential Limited | Real estate | 2009 |
| Tasc PCN Limited | Health & social care | 2022 |
| Taunton Cardiac Services Limited | Health & social care | 2019 |
| Tavi Moor Ltd | Households | 2020 |
| Tayward Health Limited | Health & social care | 2023 |
| Tcct Ltd | Hospitality | 2025 |
| Techrail Retail Services Limited | Manufacturing | 1991 |
| Tekmarket Ltd | Wholesale & retail | 2020 |
| Tempus Consulting Services Ltd | Health & social care | 2016 |
| Terracotta Roots Ltd | Hospitality | 2026 |
| Thatcham Gardens Management Limited | Households | 1988 |
| Thatch’Em Thatchers Ltd | Construction | 2025 |
| THE Aileen Daly Group Ltd | Administrative & support | 2018 |
| THE Bath Pharmacy Company Limited | Other services | 2011 |
| THE Bell Public House (Winsham) Ltd | Hospitality | 2017 |
| THE Best of Somerset Ltd | Professional & scientific | 2025 |
| THE Cotswold Doctors Ltd | Health & social care | 2026 |
| THE Crockett Partnership Ltd | Health & social care | 2023 |
| THE Ferne Animal Sanctuary | Agriculture & fishing | 2015 |
| THE Foggy Gorilla Ltd | Wholesale & retail | 2025 |
| THE Glenburn Court Management Company Ltd | Real estate | 2007 |
| THE Grange (Weymouth) Management Company Limited | Households | 2004 |
| THE Graphics Factory Chard Ltd | Professional & scientific | 2019 |
| THE Green Dragon Combe Ltd | Hospitality | 2022 |
| THE Hawthorns Management (NO. 1) Limited | Households | 1990 |
| THE Haymaker Inn Ltd | Hospitality | 2016 |
| THE Hive Young Peoples Centre CIC | Health & social care | 2025 |
| THE Hollies (Chard) Freehold Management Company Limited | Households | 2025 |
| THE Magdalen Environmental Trust | Education | 1990 |
| THE Mary Rose House Hemyock (1993) Management Company Limited | Households | 1993 |
| THE Professional Estate Agency Company Limited | Real estate | 2015 |
| THE Ultimate Gourmet Burger Company Ltd | Hospitality | 2021 |
| THE Visual Branding Group Limited | Financial services | 2016 |
| THE Wheel Refurbishment Company Ltd | Manufacturing | 2019 |
| Thinkmodules Ltd | Information & communication | 2023 |
| Thornwood (Eastbourne) Limited | Real estate | 2026 |
| Time and Kindness Limited | Education | 2016 |
| Timeless Furniture Design Limited | Manufacturing | 2022 |
| TMT @ Ltd | Real estate | 2024 |
| Tolland & Barratt Ltd | Construction | 2015 |
| Top Marque Recruitment Ltd | Administrative & support | 2022 |
| Torbay Anaesthetic Group Limited | Health & social care | 2024 |
| Total Resolve Limited | Manufacturing | 2017 |
| Total Resolve Training Limited | Manufacturing | 2013 |