| S N Pindoria Properties Ltd | Real estate | 2017 |
| S P Heating Ltd | Construction | 2025 |
| S P Management Solutions Ltd | Administrative & support | 2016 |
| S Performance Ltd | Wholesale & retail | 2022 |
| S R Cooper Investment Holdings Ltd | Financial services | 2023 |
| S R Cooper Meats Limited | Wholesale & retail | 2012 |
| S R Neurology Limited | Health & social care | 2017 |
| S R Services (UK) Limited | Administrative & support | 2005 |
| S R Services Property Management Limited | Real estate | 2019 |
| S Radia Management Ltd | Financial services | 2012 |
| S REC Services Ltd | Administrative & support | 2026 |
| S S K Farsons Limited | Transport & logistics | 2021 |
| S S K T Limited | Transport & logistics | 2015 |
| S S Media (London) Limited | Professional & scientific | 2022 |
| S Shack Enterprises Ltd | Real estate | 2019 |
| S Shack Ltd | Hospitality | 2019 |
| S Thakerar Ltd | Health & social care | 2025 |
| S Trend Trader Ltd | Wholesale & retail | 2020 |
| S V Builders and Contractors Ltd | Construction | 2024 |
| S V Contractors Limited | Construction | 2006 |
| S Wright Limited | Information & communication | 2025 |
| S&A Orthocare Limited | Health & social care | 2025 |
| S&C Builders and Cleaners Ltd | Construction | 2024 |
| S&D Cleansweep Services Ltd | Administrative & support | 2025 |
| S&D Consult Ltd | Transport & logistics | 2025 |
| S&G Estate Group Limited | Real estate | 2022 |
| S&K Holding Group Limited | Professional & scientific | 2026 |
| S&M Techsol Limited | Professional & scientific | 2012 |
| S&M Truck Services Limited | Wholesale & retail | 2025 |
| S&Mas Ltd | Construction | 2019 |
| S&Mh Ltd | Transport & logistics | 2022 |
| S&N Gardens Ltd | Administrative & support | 2019 |
| S&Ng Investments Limited | Real estate | 2020 |
| S&P Beauty Limited | Wholesale & retail | 2020 |
| S&Pb Estates Limited | Real estate | 2013 |
| S&S Contracts Ltd | Construction | 2022 |
| S&S Optical Limited | Wholesale & retail | 2025 |
| S&V Estate Ltd | Hospitality | 2025 |
| S&V Group Ltd | Information & communication | 2020 |
| S&Vk Limited | Wholesale & retail | 2023 |
| S-Line Rentals Limited | Administrative & support | 2017 |
| S. a. R. Associates Limited | Professional & scientific | 2006 |
| S. Baring & Co Ltd | Professional & scientific | 2025 |
| S. Greenstein & Co Ltd | Wholesale & retail | 2019 |
| S. K. Fashions Limited | Wholesale & retail | 2010 |
| S. Shah & Sons UK Ltd | Wholesale & retail | 2025 |
| S.B Collection Ltd | Health & social care | 2022 |
| S.C. Bizon Foods Ltd | Wholesale & retail | 2009 |
| S.D. Bullion Limited | Administrative & support | 2013 |
| S.D. Investment Holdings Limited | Real estate | 2017 |
| S.E General Limited | Wholesale & retail | 2022 |
| S.G.S Motors & Transport Ltd | Transport & logistics | 2012 |
| S.Griffin Consultancy Ltd | Professional & scientific | 2020 |
| S.H.F Scaffolding Ltd | Construction | 2022 |
| S.I.M Investments Ltd | Professional & scientific | 2011 |
| S.J. Care Homes (Wallasey) Limited | Health & social care | 2006 |
| S.J.R Elec & Mech Services Ltd | Construction | 2021 |
| S.Ken Design Ltd | Other services | 2013 |
| S.N. & Sons Electrical Limited | Other services | 1998 |
| S.O.R Flowers Limited | Wholesale & retail | 2024 |
| S.P. Builders Inc Limited | Construction | 2018 |
| S.P. Secretarial Services Limited | Other services | 1992 |
| S.P.E.E.D. Coaching Ltd | Education | 2016 |
| S.R.E Enterprise Ltd | Extraterritorial | 2020 |
| S.Royce & SON Limited | Construction | 1958 |
| S.S. Lawson Dentist Ltd. | Health & social care | 2009 |
| S.Sukumar Ltd | Financial services | 2023 |
| S.T.Parameswaran & Company Limited | Hospitality | 2024 |
| S.T.Serviced Accommodations Limited | Real estate | 2024 |
| S1 Consultancy Services Limited | Professional & scientific | 2015 |
| S2 Homes Limited | Real estate | 2022 |
| S2 International Limited | Administrative & support | 2016 |
| S2 Ventures Limited | Real estate | 2022 |
| S2LM Property Limited | Real estate | 2022 |
| S3 Cars Ltd | Wholesale & retail | 2020 |
| S3 Global Consultants Ltd | Information & communication | 2014 |
| S3 IT Ltd | Extraterritorial | 2010 |
| S3 United Ltd | Information & communication | 2017 |
| S31ALP Homes Ltd | Real estate | 2025 |
| S31ALP Ltd | Health & social care | 2018 |
| S4 CS Limited | Information & communication | 2016 |
| S4 Family Investments Ltd | Real estate | 2024 |
| S4 Investments Ltd | Real estate | 2020 |
| S4M Ltd | Professional & scientific | 2017 |
| S4U Healthylife Ltd | Wholesale & retail | 2014 |
| S5 Property Management Limited | Administrative & support | 2024 |
| S6MKE Limited | Construction | 2016 |
| S925STERLINGSILVER Ltd | Wholesale & retail | 2025 |
| SA & NA Limited | Wholesale & retail | 2023 |
| SA Healthcare Analytics Limited | Professional & scientific | 2024 |
| SA Premium Ltd | Wholesale & retail | 2026 |
| SA Smiles Exotics Limited | Administrative & support | 2025 |
| SA Smiles Limited | Health & social care | 2016 |
| Sa-Lt (2014) Ltd | Administrative & support | 2014 |
| SA160931 Health Ltd | Health & social care | 2024 |
| SAA Consultancy Limited | Information & communication | 2014 |
| SAA Property Investments Ltd | Real estate | 2018 |
| Saachi Consultants Ltd | Professional & scientific | 2023 |
| Saahil Dessaii Ltd | Professional & scientific | 2023 |
| Saahira Properties Ltd | Real estate | 2024 |