| RWT Groceries Ltd | Wholesale & retail | 2025 |
| RX by Sheetal Ltd | Wholesale & retail | 2025 |
| RXM Fixing Ltd | Construction | 2021 |
| RY & MS Ltd | Wholesale & retail | 2026 |
| Ryam Ltd | Administrative & support | 2016 |
| Ryam Task Force Ltd | Other services | 2025 |
| Ryan C Consultancy Limited | Information & communication | 2025 |
| Ryan Contracting & Manpower Solutions Ltd | Information & communication | 2017 |
| Ryan HGV Ltd | Transport & logistics | 2018 |
| Ryan John UK Limited | Professional & scientific | 2022 |
| Ryancas Limited | Hospitality | 2006 |
| Rydan Services Ltd | Administrative & support | 2016 |
| Ryker Group Ltd | Construction | 2021 |
| Rynz Ltd | Wholesale & retail | 2019 |
| RYO Events Ltd | Hospitality | 2025 |
| RYS Infotek Ltd | Information & communication | 2017 |
| RYS Transport Ltd | Transport & logistics | 2019 |
| Ryze Corp Ltd | Wholesale & retail | 2022 |
| RZM Ltd | Health & social care | 2024 |
| Rzns Properties Limited | Real estate | 2026 |
| Rznstudio Limited | Professional & scientific | 2019 |
| Rzrpadel Ltd | Wholesale & retail | 2026 |
| S & a Homes (Ilford) Limited | Real estate | 2020 |
| S & a Traders Ltd | Wholesale & retail | 2017 |
| S & F Residential Properties Ltd | Real estate | 2019 |
| S & H Invest Limited | Real estate | 2021 |
| S & H Motor Group Limited | Wholesale & retail | 2026 |
| S & H Roofing Limited | Construction | 2005 |
| S & H Technology Ltd | Information & communication | 2020 |
| S & J Holloway Ltd | Hospitality | 2013 |
| S & K Associates Ltd | Professional & scientific | 2010 |
| S & K Miles Ltd | Transport & logistics | 2019 |
| S & L Consultancy Services Limited | Wholesale & retail | 2015 |
| S & P Global Consultancy Limited | Professional & scientific | 2019 |
| S & P Milton Keynes Ltd | Hospitality | 2025 |
| S & R Pharma Limited | Wholesale & retail | 2014 |
| S & S Care (UK) Limited | Health & social care | 2005 |
| S & S Global Ltd | Wholesale & retail | 2025 |
| S & S Property Guru Ltd | Real estate | 2023 |
| S & S Support Services Limited | Hospitality | 2017 |
| S & S UK Private Ltd | Real estate | 2022 |
| S & T Consultants Bizz Limited | Administrative & support | 2014 |
| S & T Partners Limited | Health & social care | 2015 |
| S & Z Estates Limited | Real estate | 2018 |
| S & Z Property Ltd | Real estate | 2018 |
| S a a Electrical Services Ltd | Manufacturing | 1999 |
| S a Benson Limited | Manufacturing | 2003 |
| S a P Management Limited | Construction | 2026 |
| S a S Vape Zone Ltd | Wholesale & retail | 2024 |
| S a Worldwide Business Services Limited | Administrative & support | 2013 |
| S and J Brothers Limited | Hospitality | 2021 |
| S and J Screed Floor Limited | Construction | 2025 |
| S and S (Bros) Limited | Real estate | 2018 |
| S and S Community Locum Ltd | Health & social care | 2014 |
| S and S Networks Limited | Information & communication | 2020 |
| S and S Tax Consultancy Ltd | Professional & scientific | 2023 |
| S Bains & SON Limited | Real estate | 2020 |
| S Bains Limited | Real estate | 2020 |
| S C L Sparks Ltd | Construction | 1997 |
| S Dhillon Consultancy Limited | Administrative & support | 2026 |
| S F and C Catering Limited | Hospitality | 2023 |
| S Fadez Ltd | Other services | 2025 |
| S G Bromley Limited | Hospitality | 2019 |
| S H Fast Foods Limited | Hospitality | 2017 |
| S H Lastminutelocum Limited | Health & social care | 2013 |
| S H Tyres & Wheels Ltd | Wholesale & retail | 2006 |
| S I Properties London Ltd. | Real estate | 2016 |
| S J Frontline Security Ltd | Administrative & support | 2023 |
| S K Legal Conslts Ltd | Professional & scientific | 2025 |
| S K Prime Property Ltd | Real estate | 2025 |
| S K Punia Accountants LLP | | 2022 |
| S Kaur Logistics Ltd | Transport & logistics | 2025 |
| S Latif Ltd | Wholesale & retail | 2023 |
| S Lushi Construction Ltd | Construction | 2017 |
| S M Alam Services Ltd | Health & social care | 2025 |
| S Master Consultancy Ltd | Administrative & support | 2020 |
| S Miah Consultancy Ltd | Other services | 2022 |
| S Modha Properties Limited | Real estate | 2024 |
| S N Autospares & Co Limited | Wholesale & retail | 1989 |
| S N Kala Property Limited | Real estate | 2025 |
| S N M Invest Ltd | Real estate | 2022 |
| S N Valeting Centre Limited | Other services | 2015 |
| S Naeem Consultancy Ltd | Professional & scientific | 2025 |
| S P Kala Limited | Wholesale & retail | 2019 |
| S Pharma Ltd | Health & social care | 2016 |
| S Plus International Ltd | Manufacturing | 2020 |
| S S Basi & Co LLP | | 2012 |
| S S G & FM Ltd | Administrative & support | 2020 |
| S S Properties (London) Management Company Limited | Real estate | 2009 |
| S Shah Property Ltd | Real estate | 2025 |
| S Sodhi Construction Ltd | Construction | 2023 |
| S T Catering and Events Limited | Hospitality | 2023 |
| S Thivyan Ltd | Transport & logistics | 2021 |
| S U Cars Ltd | Wholesale & retail | 2017 |
| S W Prime Ltd | Wholesale & retail | 2026 |
| S Z Luxury Group Ltd | Other services | 2025 |
| S&A Automotive Limited | Wholesale & retail | 2019 |
| S&A Care Services Ltd | Health & social care | 2020 |
| S&B Global Construction Limited | Construction | 2024 |
| S&B London Properties Limited | Real estate | 2023 |