| SRI Nish Ltd | Real estate | 2020 |
| SRI Pada Services Limited | Information & communication | 2013 |
| SRI Prakrithi Limited | Administrative & support | 2013 |
| SRI Prakrithi Property Ltd | Real estate | 2019 |
| SRI SAI Technologies Ltd | Information & communication | 2012 |
| SRI Saivihaan Properties Limited | Real estate | 2025 |
| Srifi Enterprise Limited | Manufacturing | 2022 |
| Srigeetha Limited | Information & communication | 2018 |
| Srigowri Services Limited | Hospitality | 2022 |
| Sril Consulting Limited | Information & communication | 2015 |
| Srinarmada Solutions Ltd | Information & communication | 2014 |
| Sriom HR Solutions Ltd | Information & communication | 2019 |
| Sripada Hotels & Resorts International Ltd. | Hospitality | 2019 |
| Sris Estates Limited | Real estate | 2025 |
| Sris Infotech Ltd | Information & communication | 2019 |
| Sris Residencies Limited | Real estate | 2026 |
| Sriss Limited | Information & communication | 2015 |
| Sritechy Ltd | Information & communication | 2018 |
| SRJ Engineering Limited | Manufacturing | 2014 |
| SRM Consultant Ltd | Health & social care | 2023 |
| SRM Intl Ltd | Wholesale & retail | 2025 |
| SRM Management Industries Limited | Professional & scientific | 2022 |
| SRM Notary Limited | Professional & scientific | 2020 |
| SRM Properties Limited | Real estate | 2018 |
| Srnp Ltd | Real estate | 2025 |
| Srpn Infotech Ltd | Information & communication | 2021 |
| Srteez Ltd | Administrative & support | 2018 |
| Sruk Ltd | Administrative & support | 2023 |
| SS AV Solutions Limited | Information & communication | 2026 |
| SS Bhatti Ltd | Education | 2021 |
| SS Global Holdings Ltd | Financial services | 2024 |
| SS Lighting Limited | Wholesale & retail | 2023 |
| SS Product & Growth Ltd | Information & communication | 2023 |
| SS3 Infotech Limited | Information & communication | 2014 |
| Ssaa Property Investments Limited | Construction | 2025 |
| Ssaf MK Properties Ltd | Real estate | 2025 |
| Ssak Medical Limited | Health & social care | 2018 |
| Ssasr IT Consultants Limited | Information & communication | 2011 |
| SSB Building Services Ltd | Construction | 2019 |
| SSB Yorkshire Ltd | Hospitality | 2023 |
| Sscmb Ltd | Real estate | 2022 |
| SSG Construction and Design Ltd | Construction | 2024 |
| SSG Housing CIC | Real estate | 2025 |
| Ssgka Holdings Limited | Financial services | 2023 |
| SSH Tech Limited | Information & communication | 2022 |
| Ssir Capital Limited | Real estate | 2026 |
| Ssmk Limited | Real estate | 2025 |
| Ssmk Properties Limited | Real estate | 2023 |
| SSN Engineering Services Ltd | Professional & scientific | 2023 |
| SSP Automation Limited | Professional & scientific | 2015 |
| SSP Corporation Limited | Real estate | 2018 |
| SSP Properties Limited | Real estate | 2015 |
| SSP PROPERTIES01 Limited | Real estate | 2015 |
| SSP PROPERTIES02 Limited | Real estate | 2015 |
| SSP PROPERTIES03 Limited | Real estate | 2015 |
| SSP PROPERTIES05 Limited | Real estate | 2018 |
| SSP Property Holdings Limited | Real estate | 2023 |
| Ssra IT Solutions Limited | Information & communication | 2026 |
| SST Property Holdings Limited | Real estate | 2023 |
| ST Albans Centurions Limited | Arts & recreation | 2002 |
| ST Albans Financial Ltd | Financial services | 2021 |
| ST Anne's Road Limited | Construction | 2020 |
| ST Botolph Estates Limited | Real estate | 2013 |
| ST Consulting Services UK Ltd | Professional & scientific | 2024 |
| ST Creative Ltd | Information & communication | 2010 |
| ST Engineering Idirect (UK) Limited | Administrative & support | 2001 |
| ST Jacobs Place (Canterbury) Limited | Real estate | 2003 |
| ST Mary's Chinese Limited | Administrative & support | 2018 |
| ST Marys Takeaway Ltd | Hospitality | 2025 |
| ST Nicholas Preparatory School Limited | Extraterritorial | 1998 |
| ST PAY & Perks Ltd | Professional & scientific | 2025 |
| ST. Martins Freehold Limited | Households | 2011 |
| ST. Mary's Paddock Apartments Management Company Limited | Households | 2003 |
| ST. Mary's Paddock Management Company Limited | Real estate | 2001 |
| ST. Matthews Court Bletchley Limited | Households | 1990 |
| St.George Healthcare Service Ltd | Public administration | 2019 |
| STA Consultant and Management Limited | Administrative & support | 2025 |
| STA Property Limited | Real estate | 2015 |
| Staawish Ltd | Wholesale & retail | 2023 |
| Stablemate Live Ltd | Information & communication | 2025 |
| Stace Photography Ltd | Professional & scientific | 2022 |
| Stacey Avenue Developments Limited | Administrative & support | 2014 |
| Stack Jewellery Limited | Wholesale & retail | 2024 |
| Stadium MK Group Limited | Professional & scientific | 2007 |
| Stadium MK Limited | Hospitality | 2011 |
| Stadium MK Properties Limited | Arts & recreation | 2001 |
| Staffco Direct Ltd | Administrative & support | 2008 |
| Staffing Professionals Limited | Administrative & support | 2005 |
| Stafflink Ltd | Administrative & support | 2018 |
| Staffordshire Outbuildings Limited | Manufacturing | 2019 |
| Stag Wealth Management Ltd | Financial services | 2023 |
| Stage Masters UK Ltd | Arts & recreation | 2024 |
| Stages-Of-Life Ltd | Health & social care | 2015 |
| Stainless Customs Ltd | Manufacturing | 2021 |
| Stairhelper Ltd | Other services | 2024 |
| Stairwell Wines Limited | Wholesale & retail | 2010 |
| Stallion Studio Ltd | Wholesale & retail | 2025 |
| Stallionz Group Ltd | Transport & logistics | 2024 |
| Stalx Ltd | Professional & scientific | 2017 |
| Stamford Cannon (Clare Street) Ltd | Construction | 2021 |