| Sparkleclean Carpet Ltd | Administrative & support | 2024 |
| Sparkling House Ltd | Wholesale & retail | 2026 |
| Sparks of Success Ltd | Education | 2020 |
| Spec Estates Ltd | Real estate | 2026 |
| Special Catering Company Salford Limited | Hospitality | 2022 |
| Special Catering Company Warrington Limited | Hospitality | 2018 |
| Special Catering Holdings Limited | Hospitality | 2014 |
| Specific Nominees Limited | Extraterritorial | 2005 |
| Spector Facilities Limited | Administrative & support | 2024 |
| Spectron LED Limited | Wholesale & retail | 2010 |
| Spectrum Kitchens by Design Ltd | Manufacturing | 2018 |
| Speedrun Delivery Limited | Transport & logistics | 2025 |
| Speedtech Innovation Ltd | Information & communication | 2023 |
| Speedwagon Ltd | Wholesale & retail | 2023 |
| Speedy Mobile Phone Accessories Ltd | Wholesale & retail | 2019 |
| Speedy Parcel Delivery Ltd | Other services | 2018 |
| Speedyfix Ltd | Wholesale & retail | 2025 |
| Speenzar Limited | Wholesale & retail | 2016 |
| Spenfold (Carlisle) Limited | Real estate | 1999 |
| Spenfold (Liverpool) Limited | Real estate | 1999 |
| Spin & Grin Laundry Ltd | Other services | 2026 |
| Spiral Craft Limited | Wholesale & retail | 2021 |
| Spirit Zone Ltd | Wholesale & retail | 2018 |
| SPL Realty Ltd | Real estate | 2025 |
| Splendour Properties Ltd | Hospitality | 2023 |
| SPM Logistics Limited | Transport & logistics | 2019 |
| Spmf Ltd | Real estate | 2022 |
| Sporting Start UK Limited | Arts & recreation | 2008 |
| Sporting Therapy Ltd | Education | 2017 |
| Sports Heads Ltd | Manufacturing | 2025 |
| Sports in Primary Ltd | Education | 2022 |
| Sports Uniform Factory Ltd | Manufacturing | 2025 |
| Spray Paint MCR Limited | Construction | 2025 |
| Spree Commercial Services Ltd | Financial services | 1999 |
| Spring Oak Developments Ltd | Construction | 2007 |
| Springaron Estates Ltd. | Real estate | 2025 |
| Springstep Estates Limited | Real estate | 2019 |
| Springstep Holdings Limited | Real estate | 2019 |
| Springstep Residential Limited | Real estate | 2021 |
| Spurs Health Solutions Ltd | Health & social care | 2026 |
| Sqco Ltd | Wholesale & retail | 2014 |
| Square Marble Technology Limited | Information & communication | 2002 |
| Squibbrams Law Limited | Professional & scientific | 2024 |
| SR Autos Limited | Wholesale & retail | 2022 |
| SR Facilities Group (UK) Limited | Administrative & support | 2021 |
| SR Facilities Group Ltd | Administrative & support | 2008 |
| SR Parking Ltd | Other services | 2020 |
| SR Parking Services Ltd | Other services | 2020 |
| SR Products Ltd | Wholesale & retail | 2022 |
| Sravya Infotech Limited | Information & communication | 2026 |
| Srinija Technology Ltd | Information & communication | 2025 |
| SRL Motors Ltd | Wholesale & retail | 2020 |
| SRM Northwest Ltd | Real estate | 2020 |
| SRM Utilities Ltd | Construction | 2019 |
| SRP Recruiting Ltd | Administrative & support | 2024 |
| SS Supreme Limited | Real estate | 2023 |
| SS Thrive Hub CIC | Health & social care | 2026 |
| SSA Innovations CIC | Transport & logistics | 2025 |
| SSA Innovations Logistics Ltd | Transport & logistics | 2025 |
| SSH Propco Ltd | Construction | 2009 |
| SSH SL (Widnes) Limited | Construction | 2001 |
| SSH1V Limited | Construction | 2022 |
| SSR Legal Limited | Professional & scientific | 2025 |
| SSS Ventures Limited | Real estate | 2025 |
| SSV IT PVT Ltd | Information & communication | 2023 |
| ST Advisory Chambers Limited | Professional & scientific | 2024 |
| ST Annes Building Nominees Ltd | Extraterritorial | 2022 |
| ST Georges Court (Chorley) Management Company Limited | Households | 2007 |
| ST Georges Court (Hooley) Management Company Ltd | Households | 2023 |
| ST Luke’S Park SPV Limited | Real estate | 2025 |
| ST Michaels UK Propco 2 Limited | Construction | 2022 |
| ST Motors Lichfield Ltd | Wholesale & retail | 2020 |
| ST. Everest Healthcare Services UK Limited | Health & social care | 2024 |
| ST. Stelian Group Limited | Health & social care | 2026 |
| Stableford Partnership LLP | | 2014 |
| Stacked Karats Limited | Other services | 2024 |
| Staff Resources Limited | Administrative & support | 2017 |
| Staffing Group South Ltd | Administrative & support | 2024 |
| Stafford Real Estates NO. 2 Limited | Other services | 2025 |
| Stainforth Properties Ltd | Real estate | 2019 |
| Stainless Steel Processing M & T Ltd | Manufacturing | 2018 |
| Stairfoot Estate Company Limited | Other services | 2019 |
| Stairfoot Estate Company NO.2 Limited | Other services | 2019 |
| Stalybridge Ltd | Real estate | 2020 |
| Stamford Challenger Limited | Extraterritorial | 2022 |
| Stamford Shopping Centre Limited | Real estate | 2004 |
| Stand Estates Ltd | Real estate | 2004 |
| Standing Eight Limited | Extraterritorial | 2017 |
| Stanley & Parks Ltd | Real estate | 2010 |
| Stanley Assets Ltd | Real estate | 2019 |
| Stanley Estates M/C Ltd | Real estate | 2024 |
| Stanpark Ltd | Real estate | 2021 |
| Stanton Cross Investment Co Limited | Real estate | 2026 |
| Stanton Cross SPV Limited | Real estate | 2025 |
| Stanton Street Management Company Limited | Households | 1986 |
| Staplehouse Ltd | Extraterritorial | 2004 |
| Star Childcare Ltd | Health & social care | 2026 |
| Star Event Ltd | Professional & scientific | 2019 |
| Star Genie Limited | Education | 2016 |
| Star Machinery Ltd | Extraterritorial | 2004 |