| Northfield Investments Limited | Professional & scientific | 1979 |
| ON Site Vehicle & Diesel Plant Engineering Limited | Manufacturing | 2005 |
| ON the Rocks Tours Ltd | Arts & recreation | 2025 |
| Online Fulfilment Limited | Other services | 2020 |
| Organise My Books Limited | Professional & scientific | 2022 |
| Oxborough & SON Ltd | Information & communication | 2018 |
| P.J.D Lighting & Electrical Design Limited | Construction | 2011 |
| Papertrees Somerset Ltd | Wholesale & retail | 2024 |
| Paton Walsh Ltd | Professional & scientific | 2019 |
| Peak Mindset Ltd | Health & social care | 2022 |
| Philip Hughes Associates LLP | | 2019 |
| PL8 Store Ltd | Wholesale & retail | 2024 |
| Plush London Ltd | Information & communication | 2011 |
| Pockets of Light Limited | Information & communication | 2011 |
| Powerwood Project CIC | Education | 2014 |
| Premier Finishes (South West) Limited | Construction | 2006 |
| Private Equity Value Creation Limited | Professional & scientific | 2025 |
| Prometheus Consulting Limited | Professional & scientific | 2020 |
| R & H Phillips Limited | Agriculture & fishing | 2011 |
| R B FRY Plumbing & Heating Ltd | Construction | 2010 |
| R J Automation Ltd | Professional & scientific | 2024 |
| R J Mitchell Associates Limited | Information & communication | 2004 |
| Rawcreature Productions Ltd | Information & communication | 2017 |
| Reidy Remaps Ltd | Wholesale & retail | 2025 |
| Richard Hunter Ltd | Arts & recreation | 2015 |
| RIGHT2ROAM Cine Systems Ltd | Manufacturing | 2025 |
| Rimu Consultancy Limited | Professional & scientific | 2021 |
| River Cale Cafe Ltd | Hospitality | 2022 |
| RJ Blake Holdings Limited | Financial services | 2025 |
| ROB Beard Estate Agents Ltd | Real estate | 2026 |
| Robert Neave Limited | Manufacturing | 2015 |
| Rogam Farms Ltd | Agriculture & fishing | 1998 |
| Rogam Ltd | Financial services | 2020 |
| Rule #65 Ltd | Wholesale & retail | 2020 |
| Rupert Jones Ltd | Professional & scientific | 2021 |
| Rustic Country Retreats Ltd | Hospitality | 2024 |
| Rxsi Ltd | Manufacturing | 2026 |
| S.A.I. Limited | Professional & scientific | 1984 |
| Samantha Walsh Interiors Ltd | Wholesale & retail | 2020 |
| Sandeman Martin Ltd | Real estate | 2022 |
| Sarah Gibson Optometrist Ltd | Health & social care | 2014 |
| Saunders & Smalls Car Seats Ltd | Wholesale & retail | 2023 |
| Screed & Flooring Limited | Construction | 2023 |
| Selvedge Consulting Limited | Professional & scientific | 2017 |
| Selwood Bloodstock Limited | Agriculture & fishing | 2013 |
| Sfcw Ltd | Professional & scientific | 2012 |
| Shadwell Court Management Company Limited | Households | 1999 |
| Shepton Farms Limited | Agriculture & fishing | 1989 |
| Sibling Developments Limited | Construction | 2009 |
| Skibz Limited | Wholesale & retail | 2008 |
| South Somerset Community Accessible Transport | Transport & logistics | 2003 |
| South West Coaches Limited | Transport & logistics | 1999 |
| Southbrook Cottages Management Limited | Hospitality | 1991 |
| Southill Vets Limited | Professional & scientific | 2012 |
| SP8 Cleaning and Management Limited | Real estate | 2018 |
| Sport USA Camps Ltd | Education | 2022 |
| SRM Training Ltd | Education | 2024 |
| Station Road Shortlands Management Limited | Households | 2000 |
| Stilingsimplystylish Ltd | Wholesale & retail | 2025 |
| Strata Investment Holdings PLC | Administrative & support | 2001 |
| Suddon Grange Farm Limited | Agriculture & fishing | 2019 |
| Susify Ltd | Professional & scientific | 2022 |
| Sustainable Enterprise and Empowerment Dynamics C.I.C. | Administrative & support | 2017 |
| Sutor Farm Limited | Professional & scientific | 2016 |
| Symphony Healthcare Services Limited | Health & social care | 2008 |
| T a Green Limited | Extraterritorial | 2007 |
| T H Tractors Limited | Wholesale & retail | 2009 |
| Tands Services Ltd | Professional & scientific | 2026 |
| Tanning Cove Ltd | Other services | 2023 |
| Taylor and Down's Plastering Limited | Construction | 2022 |
| THE Balsam Centre | Education | 1999 |
| THE Bear Inn Hotel Ltd | Hospitality | 2025 |
| THE Bear Inn Somerset Ltd | Hospitality | 2025 |
| THE Bear Inn Sommerset Ltd | Hospitality | 2025 |
| THE Brewery on Sea Ltd | Real estate | 1990 |
| THE Button Shop Ltd | Information & communication | 2026 |
| THE Growing Space (Wincanton) Limited | Health & social care | 2001 |
| THE Hub @ NO. 3 Ltd | Hospitality | 2017 |
| THE Incense Route Expedition Limited | Administrative & support | 2025 |
| THE Mortgage Exchange (Shaftesbury) Limited | Financial services | 2004 |
| THE Mushroom Shop Ltd | Agriculture & fishing | 2025 |
| THE Old Inn Fine Dining Limited | Real estate | 2009 |
| THE Olive Branch - Reclaim and Design Ltd | Wholesale & retail | 2024 |
| THE Recycled Glassware Company Limited | Wholesale & retail | 2010 |
| THE Small Cake Shop Ltd | Wholesale & retail | 2014 |
| THE Thoroughly Wild Meat Company Limited | Wholesale & retail | 2003 |
| TML Cars Limited | Wholesale & retail | 2008 |
| TOM Parker Creamery Limited | Manufacturing | 2016 |
| Toolex Limited | Wholesale & retail | 1969 |
| Travel Travismo Limited | Administrative & support | 2019 |
| Tuckers Truck Services Ltd | Wholesale & retail | 2015 |
| Turnbull Grey Limited | Professional & scientific | 2006 |
| Ultrasound Public Address Ltd | Information & communication | 2025 |
| Uplands (Bratton Seymour) Management Company Limited | Households | 1988 |
| Utility Specialists Ltd. | Professional & scientific | 1996 |
| Vault Secure Ltd | Administrative & support | 2025 |
| Vibrant Essences Limited | Manufacturing | 2008 |
| Victoria's Food & Co Ltd | Hospitality | 2016 |
| Vooght & Moyies Properties Limited | Construction | 2024 |
| W&M Building Ltd | Construction | 2026 |