| Pulpt Limited | Manufacturing | 2019 |
| Purkie Properties Limited | Real estate | 1999 |
| Quantic Properties Limited | Real estate | 2001 |
| Quantock Plastering Limited | Construction | 2014 |
| R G Symes Limited | Construction | 2010 |
| R&Gsupplies Ltd | Manufacturing | 2020 |
| R. Bracken Limited | Administrative & support | 1964 |
| Rain Aviation Services Ltd | Manufacturing | 2023 |
| Red Robin Books Limited | Information & communication | 2015 |
| Red Roof Management Company Limited | Households | 2017 |
| Refresh Movement Limited | Health & social care | 2016 |
| Repara Ltd | Wholesale & retail | 2025 |
| RIC Construction Ltd | Construction | 2018 |
| RIC Landscaping & Paving Ltd | Administrative & support | 2019 |
| RIC Scaffolding Ltd | Construction | 2019 |
| Rice-Lewis Enterprises Limited | Wholesale & retail | 2012 |
| Rifleman Firearms Group Limited | Financial services | 2020 |
| Rifleman Firearms Limited | Wholesale & retail | 2013 |
| Rjbs Accountants Limited | Professional & scientific | 2025 |
| Rjbs Langport Limited | Financial services | 2019 |
| Roberts Railway Repairs Ltd. | Other services | 2010 |
| Roje Limited | Extraterritorial | 2011 |
| Rouse & Maple Limited | Arts & recreation | 2015 |
| Rubber Coatings Limited | Wholesale & retail | 2012 |
| S. J. Hodder Limited | Construction | 2003 |
| Sage Catering SW Ltd | Hospitality | 2023 |
| Sampford Land Securities Limited | Real estate | 2020 |
| Sampford Properties Limited | Real estate | 2012 |
| Sanditon Development Ltd | Information & communication | 2013 |
| Sawdust Dreams Ltd | Manufacturing | 2023 |
| SAY Cheese Photography Limited | Information & communication | 2005 |
| SBA Worldwide CIC | Administrative & support | 2010 |
| SC Enterprises (South West) Limited | Real estate | 2026 |
| SC Group Investments Limited | Financial services | 2026 |
| SCM Therapy Ltd | Health & social care | 2024 |
| Seismic Performance Engineering Ltd | Wholesale & retail | 2024 |
| Senda Enterprises Limited | Financial services | 2024 |
| Senda Wealth Limited | Financial services | 2025 |
| Seven Seas Software Ltd | Information & communication | 2022 |
| SG & AP Limited | Hospitality | 2012 |
| Shakspeare Glass Ltd | Manufacturing | 2012 |
| Shockd Nutrition Limited | Wholesale & retail | 2023 |
| Sitemakers Limited | Information & communication | 1999 |
| Skilgate Properties Limited | Households | 2000 |
| Slap and Tickle Decorating Ltd | Construction | 2018 |
| Social Circles CIC | Administrative & support | 2021 |
| Solutions Audio Visual Limited | Wholesale & retail | 1997 |
| Solutions AV Group Holdings Limited | Extraterritorial | 2007 |
| Solutions for Logistics Ltd | Transport & logistics | 2014 |
| Somerset Art Works | Arts & recreation | 2000 |
| Somerset Drone Services Ltd | Professional & scientific | 2026 |
| Somerset Heating Ltd | Construction | 2016 |
| Somerset Safari Limited | Transport & logistics | 2024 |
| Somerset Trading and Sales Limited | Hospitality | 2016 |
| Somerton Property Maintenance Ltd | Construction | 2009 |
| Soul Integrity Ltd | Education | 2009 |
| Soulliac Land Securities Limited | Real estate | 2020 |
| Sound Science Ltd | Professional & scientific | 2020 |
| South West Makers Ltd | Wholesale & retail | 2024 |
| Sparkles Property Management Ltd | Administrative & support | 2026 |
| SPI Collective Limited | Professional & scientific | 2009 |
| Spirit Motorcycles Limited | Manufacturing | 2016 |
| SRT (South West) Limited | Construction | 2004 |
| Star Rubber Environmental Limited | Manufacturing | 2002 |
| Stoners Goods Ltd | Wholesale & retail | 2024 |
| Strategic Simplicity Limited | Professional & scientific | 2023 |
| Stratira Partners Ltd | Professional & scientific | 2026 |
| Strebble Education and Arts Community Interest Company | Education | 2024 |
| Street 49 Ltd | Hospitality | 2017 |
| Sutton Upholsterers Limited | Manufacturing | 2009 |
| Swot Music Ltd. | Manufacturing | 2002 |
| T a L Construction Ltd | Construction | 2016 |
| T20 Construction Ltd | Construction | 2024 |
| Team BEE Ltd | Other services | 2024 |
| Teapot Creative Limited | Professional & scientific | 2012 |
| THE Angel Bizaar & Cafe Ltd | Wholesale & retail | 2023 |
| THE Bridge (Langport) Holdings Ltd | Financial services | 2024 |
| THE Bridge (Langport) Limited | Hospitality | 2018 |
| THE Car Yard Ltd | Wholesale & retail | 2026 |
| THE Crimping Company Limited | Professional & scientific | 2001 |
| THE Food Merchant Ltd | Wholesale & retail | 2024 |
| THE Heard Therapy CIC | Other services | 2022 |
| THE Kiln Cafe Ltd | Arts & recreation | 2023 |
| THE Kingsley Partnership Limited | Transport & logistics | 2015 |
| THE Langport Arms Limited | Hospitality | 2025 |
| THE Phoenix Psychology Practice Ltd | Health & social care | 2023 |
| THE Ring Sling Company Limited | Administrative & support | 2017 |
| THE Somerset Iron Works Company Limited | Arts & recreation | 2015 |
| THE Tech Company (UK) Ltd | Information & communication | 2015 |
| THE Warehouse Trust | Construction | 2006 |
| THE Wine Merchant Ltd | Wholesale & retail | 2017 |
| Thomas Design Services Limited | Information & communication | 1996 |
| Tigar Properties Ltd | Real estate | 2025 |
| Tigermulch Ltd | Professional & scientific | 2008 |
| Tmmcitw Holdings Ltd | Financial services | 2024 |
| Tony Lock Limited | Agriculture & fishing | 2008 |
| Toogood Sales Agencies Limited | Wholesale & retail | 2019 |
| Top Spec Quality Services Limited | Administrative & support | 2003 |
| TOR View Farm Ltd | Agriculture & fishing | 2018 |
| Touring Electrics Ltd | Construction | 2020 |