| Solar-Tech Renewables Ltd. | Construction | 2022 |
| Soteria Group Holdings Ltd | Public administration | 2026 |
| Sought Furniture Ltd | Manufacturing | 2022 |
| Soundemotive Ltd | Health & social care | 2024 |
| South West Roofing Contractors Ltd | Construction | 2026 |
| South Wilts SKI Ltd | Arts & recreation | 2023 |
| Southwell Holdings Ltd | Real estate | 2021 |
| Sovereign Electrical Contractors Ltd | Construction | 2018 |
| SP Personal Training Ltd | Arts & recreation | 2015 |
| Space Cooling Limited | Energy | 2005 |
| Sparks Conversation Ltd | Professional & scientific | 2025 |
| Spencer Lane-Jones Limited | Wholesale & retail | 1996 |
| Sphere X Creative Solutions Limited | Education | 2011 |
| Spillard Karate Limited | Education | 2009 |
| Spilsbury Illustration Limited | Administrative & support | 2010 |
| Spitfire Stairlifts Limited | Manufacturing | 2011 |
| Sport and Leisure Services Limited | Manufacturing | 2015 |
| SPR Contracts Ltd | Administrative & support | 2016 |
| Sprout & Explore Ltd | Wholesale & retail | 2025 |
| Spurline Engineering Limited | Information & communication | 2005 |
| SRB Property Rentals Ltd | Real estate | 2021 |
| Standing Wiseman Ltd | Professional & scientific | 2024 |
| STAR21 Limited | Information & communication | 2025 |
| Stark Ecology Ltd | Professional & scientific | 2011 |
| Stephen R Williams Limited | Education | 2016 |
| Sterling Exports Ltd | Other services | 2019 |
| Steven Hore Limited | Information & communication | 2010 |
| Stonehenge Motor Group Limited | Wholesale & retail | 2025 |
| Stormcg Ltd | Arts & recreation | 2007 |
| Stourhead Farm Shop LLP | | 2004 |
| Strandline Consulting Ltd | Professional & scientific | 2018 |
| Stratton Commercial Limited | Real estate | 2019 |
| Stratton KD Trustees Limited | Professional & scientific | 2023 |
| Stratton KD Trustees NO 2 Limited | Professional & scientific | 2023 |
| Strength for Endurance Ltd | Arts & recreation | 2019 |
| Studio TW Limited | Professional & scientific | 2021 |
| Studiobelle Ltd | Arts & recreation | 2014 |
| Sugar Web Services Ltd | Information & communication | 2012 |
| Sukiggy Ltd | Construction | 2026 |
| Summit BTL Homes Ltd | Real estate | 2025 |
| Sundown Cottage Limited | Hospitality | 2004 |
| Sutton Science & Engineering Solutions Limited | Professional & scientific | 2011 |
| SV & SV Properties Ltd | Real estate | 2026 |
| SV Consulting Ltd | Agriculture & fishing | 2023 |
| Svstorage Ltd | Administrative & support | 2025 |
| SW Driver Supply Ltd | Transport & logistics | 2019 |
| Swingfit Limited | Real estate | 2007 |
| Sykes Technical Ltd | Professional & scientific | 2026 |
| Symbiotyka Ltd | Health & social care | 2018 |
| Systembase Limited | Manufacturing | 1991 |
| T & C Arnold Farming Company Limited | Real estate | 2019 |
| T Stop Aerials Ltd | Information & communication | 2019 |
| T13 Valeting & Detailing Ltd | Administrative & support | 2025 |
| Take ME Through IT Limited | Administrative & support | 2013 |
| Talland House Management Company Limited | Households | 2010 |
| Taproot Services Limited | Agriculture & fishing | 2023 |
| Tart's R US Ltd | Hospitality | 2014 |
| Tateson Holdings Limited | Real estate | 2023 |
| Tavernor Fencing Ltd | Administrative & support | 2020 |
| Tax & Accounting Solutions (SW) Ltd | Professional & scientific | 2009 |
| Taylor Court Management Company Limited | Households | 2008 |
| Tcr's Training Room Ltd | Arts & recreation | 2024 |
| Tea and Sympathy Funeral Catering Ltd | Hospitality | 2015 |
| Technability Limited | Administrative & support | 2013 |
| Temper Ltd | Manufacturing | 2013 |
| Temple Catering Limited | Hospitality | 2024 |
| THE 2CV Shop Limited | Wholesale & retail | 2008 |
| THE Armoury Gym Ltd | Arts & recreation | 2016 |
| THE Bath, Wilts and North Dorset Gliding Club Limited | Arts & recreation | 1962 |
| THE Beautiful Mind Consultancy Limited | Extraterritorial | 2006 |
| THE Bentley PUB Group Ltd | Hospitality | 2019 |
| THE Boiler Doctor (Wilts) Ltd | Construction | 2026 |
| THE Boston Blade Limited | Other services | 2016 |
| THE Bradley Pantry Ltd | Wholesale & retail | 2023 |
| THE Bradley Studio Ltd | Arts & recreation | 2026 |
| THE Centre for Participation and Action Ltd | Professional & scientific | 2025 |
| THE Chantry Management 34 Limited | Households | 2010 |
| THE Cloisters Management Company (Redditch) Limited | Real estate | 1994 |
| THE Coffee Garden (Warminster) Ltd | Hospitality | 2022 |
| THE Cookhouse Warminster Ltd | Hospitality | 2026 |
| THE Coppermill Hire Co Ltd | Administrative & support | 2018 |
| THE Country Whistle Ltd | Wholesale & retail | 2026 |
| THE Dove at Corton Limited | Hospitality | 2025 |
| THE Dove Inn (Corton) Limited | Hospitality | 1998 |
| THE EAR Bar Ltd | Wholesale & retail | 2016 |
| THE Fuzzy Duck Distillery Ltd | Manufacturing | 2012 |
| THE Great Green Story Machine Limited | Arts & recreation | 2000 |
| THE Greyhound (Stockbridge) Limited | Hospitality | 2022 |
| THE Gyroplane Company Ltd | Wholesale & retail | 2015 |
| THE Harry Ensemble Ltd | Arts & recreation | 2014 |
| THE IP Counsel LLP | | 2008 |
| THE Learning Meadow Ltd | Health & social care | 2018 |
| THE Leslie West Africa Trading Company Ltd | Wholesale & retail | 2025 |
| THE Magnificent Material Company Limited | Wholesale & retail | 1994 |
| THE Men’S Quarters Ltd | Other services | 2018 |
| THE Moneytree Corporation Limited | Administrative & support | 2002 |
| THE Monte Hospital Limited | Wholesale & retail | 2002 |
| THE Motorhome Showroom Ltd | Wholesale & retail | 2018 |
| THE Neighbourly Matters Consultancy Ltd | Professional & scientific | 2014 |
| THE Nutmeg Shop Limited | Wholesale & retail | 2025 |