| Sunray Commodity Co., Ltd | Professional & scientific | 2017 |
| Sunrise Healthcare Service UK Ltd | Health & social care | 2014 |
| Sunrise Ship Engineering Co., Limited | Manufacturing | 2024 |
| Sunshine Agrocrop Co., Ltd | Manufacturing | 2023 |
| Sunshine Child-Care Services Limited | Health & social care | 2006 |
| Suntech Metal Products Co., Ltd. | Extraterritorial | 2014 |
| Super Ascent International Ltd | Extraterritorial | 2017 |
| Super Best Service Limited | Extraterritorial | 2018 |
| Superfryneco Ltd | Hospitality | 2023 |
| Superior Windows and Doors Ltd | Construction | 2025 |
| Superlative Care Provider Limited | Health & social care | 2025 |
| Supply Wholesale Limited | Manufacturing | 2025 |
| Support Fertility Prayers Limited | Health & social care | 2020 |
| Supreme Oils Ltd | Water & waste | 2022 |
| Supreme Plus Limited | Wholesale & retail | 2021 |
| Supreme Vending Ltd | Wholesale & retail | 2025 |
| Supriya Building Services Limited | Construction | 2018 |
| Sure Pass Services UK Ltd | Construction | 2026 |
| Surface Renew Ltd | Construction | 2016 |
| Surge Scaffolding Limited | Construction | 2017 |
| Surridge Maintenance Properties Limited | Wholesale & retail | 2024 |
| Surveyors & Valuers Limited | Professional & scientific | 2012 |
| Sussaero Ltd | Other services | 2020 |
| Sustainable Dorset Ltd | Education | 2003 |
| Sutton Smith Enterprises Limited | Real estate | 2025 |
| Suzhou Lancelot Metal Products Co., Ltd. | Manufacturing | 2023 |
| Suzhou Longijing Technology Co., Ltd | Energy | 2025 |
| SW Group Preparation Centre Limited | Wholesale & retail | 2019 |
| Swale Hockey Club Ltd | Arts & recreation | 2023 |
| Swale Park Whitstable Management Limited | Households | 2010 |
| Swanhr Consultancy Limited | Administrative & support | 2022 |
| Swann Consultancy Ltd | Construction | 2013 |
| Swarling Weddings Limited | Hospitality | 2004 |
| Sweetsler Gilingham Limited | Hospitality | 2024 |
| Sweetvktouch Ltd | Other services | 2025 |
| Swift Construction South East Ltd | Construction | 2019 |
| Swift FM Ltd | Administrative & support | 2017 |
| Swiss Aero Limited | Professional & scientific | 2024 |
| Swlm ( Bourton Mill ) Limited | Real estate | 2019 |
| Swlm Agricultural Investments Ltd | Agriculture & fishing | 2023 |
| Swlm Holdings Ltd | Financial services | 2026 |
| Swlm Limited | Real estate | 2019 |
| Swlm Property Investments Ltd | Construction | 2019 |
| Swlm Property Investments NO 1 Ltd | Construction | 2021 |
| Swlm Property Investments NO 2 Ltd | Real estate | 2024 |
| Sword Contracts Ltd | Administrative & support | 2005 |
| Sword Contracts Services Ltd | Administrative & support | 2007 |
| SY Jewelry Ltd | Extraterritorial | 2014 |
| Synergie Commercial Limited | Real estate | 2003 |
| Synergie Financial Partnerships Limited | Real estate | 2002 |
| Synergie Financial Services Limited | Real estate | 2009 |
| Synergy Project Services Limited | Professional & scientific | 2008 |
| Synox Pigments UK Ltd | Manufacturing | 2023 |
| Synth Energy Ltd | Construction | 2025 |
| Synttra Group Ltd | Financial services | 2026 |
| Systemforce Limited | Real estate | 1987 |
| T & M Management Services Ltd | Professional & scientific | 2026 |
| T a Access Ltd | Construction | 2021 |
| T Allen Funeral Services Limited | Other services | 2007 |
| T Buttling Ltd | Manufacturing | 2018 |
| T Green Properties Ltd | Real estate | 2022 |
| T J Bowles Consulting Ltd | Administrative & support | 2016 |
| T J S Service Centre Ltd | Wholesale & retail | 2012 |
| T M Finance Solutions Ltd | Administrative & support | 2014 |
| T R E Tax Consultancy Limited | Professional & scientific | 2011 |
| T-Tel Consulting Ltd | Construction | 2022 |
| T.Y. Music Group Ltd | Information & communication | 2021 |
| TA Projects Ltd | Construction | 2009 |
| Taaks 1 Limited | Construction | 2015 |
| Taal Foods Limited | Wholesale & retail | 2025 |
| Tab-Tex Limited | Wholesale & retail | 2016 |
| Tack Room Distillery Ltd | Manufacturing | 2020 |
| Tactics Public Relations Limited | Professional & scientific | 2022 |
| Tadley Management Company Limited | Households | 1993 |
| Taeam Catering Ltd | Hospitality | 2024 |
| Taigang Steel Group Co., Ltd | Manufacturing | 2023 |
| Tailored Consulting Limited | Professional & scientific | 2007 |
| Tailors Palace Ltd | Information & communication | 2019 |
| Taking Care Counselling Ltd | Health & social care | 2022 |
| TALENT4PR Limited | Professional & scientific | 2019 |
| Tall Rise Property Limited | Administrative & support | 2016 |
| Tall Rise Trading Limited | Administrative & support | 2024 |
| Tamico Ltd | Real estate | 2012 |
| Tammidal Health Care Ltd | Administrative & support | 2016 |
| Tamu Dhee Ltd | Real estate | 2024 |
| TAN & Deliver Limited | Administrative & support | 2013 |
| Tandem Fire & Security Ltd | Construction | 2022 |
| Tandem Property Services Ltd | Households | 2025 |
| Tanner Property Lettings Ltd | Real estate | 2019 |
| Tans Trix Limited | Other services | 2005 |
| Tantofe Ltd | Real estate | 2024 |
| Tantrixofa Ltd | Manufacturing | 2022 |
| Tanyah Cleaning Services Ltd | Administrative & support | 2024 |
| Tanyah Healthcare Limited | Public administration | 2024 |
| Tari Productions Ltd. | Information & communication | 2021 |
| Tarik Foods Limited | Hospitality | 2020 |
| Tarwen Ltd | Real estate | 2024 |
| Tashairene Properties Ltd | Real estate | 2025 |
| Taste of Greek Food Ltd | Hospitality | 2024 |
| Taurus Dent Ltd | Health & social care | 2013 |