| S N S Cars Ltd | Wholesale & retail | 2021 |
| S P Barfield Limited | Information & communication | 2014 |
| S P Cleaning Services Limited | Administrative & support | 2007 |
| S P Driveways & Paving Ltd | Administrative & support | 2025 |
| S P Plaisant Ltd | Professional & scientific | 2013 |
| S P Smith Painting Contractors Limited | Construction | 1955 |
| S Pearce Ltd | Construction | 2017 |
| S Property Group Ltd | Real estate | 2024 |
| S R Ceramics Limited | Construction | 2019 |
| S R Global Foods Limited | Hospitality | 2015 |
| S R P Electrical Ltd | Construction | 2026 |
| S R Services (SY) Limited | Health & social care | 2024 |
| S R W Joinery Limited | Construction | 2013 |
| S T Event Management Limited | Arts & recreation | 2022 |
| S T Fencing Ltd | Administrative & support | 2015 |
| S T Shaw Plumbing & Heating Ltd | Construction | 2015 |
| S W (Retail) Limited | Wholesale & retail | 1999 |
| S Winfield Haulage Limited | Transport & logistics | 2014 |
| S Y Electrical Limited | Extraterritorial | 2008 |
| S Y Joinery Ltd | Manufacturing | 2012 |
| S Y Looserve Limited | Extraterritorial | 2004 |
| S Zaman Travels Ltd | Transport & logistics | 2025 |
| S&A Real Estate Hub Ltd | Real estate | 2025 |
| S&A Transport Ltd | Transport & logistics | 2025 |
| S&Bi Insight Ltd | Information & communication | 2018 |
| S&E Casanova Limited | Hospitality | 2022 |
| S&F Properties Group Ltd | Real estate | 2025 |
| S&G Builders Yorkshire Ltd | Construction | 2021 |
| S&G Real Estate Ltd | Real estate | 2023 |
| S&H Formwork Ltd | Construction | 2024 |
| S&H Medics Ltd | Health & social care | 2020 |
| S&J Metrology Limited | Extraterritorial | 1997 |
| S&J Venues Ltd | Hospitality | 2024 |
| S&K Ruby House Limited | Other services | 2016 |
| S&L Trades Ltd | Wholesale & retail | 2021 |
| S&M Howson UK Ltd Trading AS LJ Consultancies Limited | Manufacturing | 2019 |
| S&M Retail Groups Limited | Wholesale & retail | 2025 |
| S&O Automotive Ltd | Wholesale & retail | 2022 |
| S&O Trans Ltd | Transport & logistics | 2020 |
| S&P Energy Ltd | Construction | 2025 |
| S&P Jewellery Design Ltd | Manufacturing | 2021 |
| S&R Property Renovations Ltd | Real estate | 2025 |
| S&S Auto Trader Limited | Wholesale & retail | 2023 |
| S&S Development Solutions Ltd | Other services | 2023 |
| S&S Hospitality Management Limited | Hospitality | 2024 |
| S&S Kayani Ltd | Real estate | 2024 |
| S&S Trading (Yorkshire) Ltd | Wholesale & retail | 2022 |
| S&Y Serendipity Consultancy Limited | Professional & scientific | 2017 |
| S(O)Uper Ltd | Manufacturing | 2023 |
| S, a Ejalonibu Limited | Health & social care | 2025 |
| S-Mart (Hallamshire) Limited | Real estate | 2020 |
| S-Y-Carz Ltd | Administrative & support | 2024 |
| S. & a. Parsons (Building Contractors) Limited | Construction | 1969 |
| S. & G. Engineering Limited | | 1984 |
| S. & W. Williamson & SON (Hardware) Limited | Wholesale & retail | 1977 |
| S. and G.L. Aswat and Sons Limited | Wholesale & retail | 2005 |
| S. KAY Trading Limited | Wholesale & retail | 2015 |
| S. Peters Transport Limited | Transport & logistics | 2015 |
| S. W. Haulage Limited | Transport & logistics | 1987 |
| S.A Commercials Ltd | Wholesale & retail | 2025 |
| S.A. Shepherd (Farrier) Limited | Other services | 2010 |
| S.A.R. Construction Limited | Construction | 1993 |
| S.A.W. Consulting Limited | Manufacturing | 2013 |
| S.B. Brickwork & Buildingwork Ltd | Real estate | 2004 |
| S.B. Civils and Construction Limited | Construction | 2023 |
| S.B.S. Productions Limited | Information & communication | 1985 |
| S.C. Streamline Properties Ltd | Real estate | 2025 |
| S.D. Coatings Limited | Manufacturing | 1970 |
| S.E. Ward & Sons (Engineers) Limited | Manufacturing | 1973 |
| S.E.L.Hutson Limited | Real estate | 1955 |
| S.G. Groundworks Limited | Construction | 2014 |
| S.Holmes Property Services Ltd | Construction | 2026 |
| S.I Engineers Limited | Manufacturing | 2005 |
| S.I. Environmental Limited | Professional & scientific | 2000 |
| S.I.M. Warehousing and Logistics Ltd | Transport & logistics | 2021 |
| S.I.R Property Partners Ltd | Real estate | 2025 |
| S.J.R Financial Consultancy Limited | Financial services | 2014 |
| S.K.I Assets Ltd | Real estate | 2026 |
| S.L.G Construction Limited | Construction | 2026 |
| S.L.Homes Ltd | Real estate | 2011 |
| S.Mathewelsa Limited | Transport & logistics | 2015 |
| S.O Commercial Ltd | Hospitality | 2017 |
| S.P. Boot Limited | Construction | 1973 |
| S.P. Brown Consulting Limited | Professional & scientific | 2026 |
| S.P. Fields (Contractors) Ltd | Construction | 2008 |
| S.P.Q. Ltd. | Hospitality | 2003 |
| S.P.R. Investigations Ltd | Hospitality | 2012 |
| S.S. Bright Drawers (Sheffield) Limited | Manufacturing | 1984 |
| S.Y. Seals Limited | Administrative & support | 1987 |
| S.Y.Scaffolding Ltd | Construction | 2021 |
| S1 Barbers Ltd | Other services | 2021 |
| S1 Estates Ltd | Real estate | 2008 |
| S1 Finance Ltd | Financial services | 2018 |
| S1 Property Limited | Real estate | 2020 |
| S10 205 Ltd. | Administrative & support | 2021 |
| S10 207 Ltd. | Administrative & support | 2020 |
| S10 Aesthetics and Beauty Limited | Other services | 2025 |
| S10 Catering Company Limited | Hospitality | 2010 |
| S10 Construction Ltd | Construction | 2025 |
| S10 Cutz Ltd | Other services | 2024 |