| Shree Vishnu Futuredeals T/A SV Future Deals Limited | Real estate | 2019 |
| Shree World Enterprise Limited | Wholesale & retail | 2025 |
| Shreeji Bakehaus Ltd | Wholesale & retail | 2025 |
| Shreeji Food Corner Ltd | Hospitality | 2024 |
| Shreeji Food PVT Ltd | Manufacturing | 2023 |
| Shresam Consulting Ltd | Information & communication | 2025 |
| Shrestha Investments Limited | Real estate | 2018 |
| Shri Chamunda Limited | Professional & scientific | 2012 |
| Shri Raam Developers Ltd | Construction | 2025 |
| Shri Raghuvar Ltd | Health & social care | 2022 |
| Shri Vishnu Limited | Real estate | 2019 |
| Shride Consultancy UK Limited | Information & communication | 2018 |
| Shriji Enterprise Limited | Real estate | 2019 |
| Shriji Estate Limited | Real estate | 2022 |
| Shriji Properties Limited | Real estate | 2020 |
| Shriji Villa Limited | Real estate | 2024 |
| Shriya Enterprises Limited | Wholesale & retail | 2024 |
| Shubh Investments Limited | Information & communication | 2009 |
| Shults Dixon Properties Ltd | Real estate | 2024 |
| Shutter AID Ltd | Wholesale & retail | 2026 |
| Shuttle NOW Limited | Transport & logistics | 2025 |
| SHY Rahman Limited | Professional & scientific | 2017 |
| Shyders Limited | Real estate | 2026 |
| Shyline Ltd | Wholesale & retail | 2015 |
| SI1 Hair and Beauty Limited | Other services | 2021 |
| Siberry Haulage Ltd | Transport & logistics | 2019 |
| Sibia Limited | Professional & scientific | 2016 |
| Sicario Management Ltd | Arts & recreation | 2017 |
| Sicario Productions Ltd | Information & communication | 2015 |
| Sich Consulting Ltd | Information & communication | 2020 |
| Sidad Ltd | Transport & logistics | 2025 |
| Siddhant Pharmaceuticals Ltd | Wholesale & retail | 2025 |
| Siddhi Photography Limited | Professional & scientific | 2025 |
| Siddhivinayak Investments Ltd | Real estate | 2025 |
| Sidhom IT Consulting Ltd | Information & communication | 2005 |
| Sienna Doonbeg Ltd | Financial services | 2023 |
| Sierra Electrical Engineering Ltd | Construction | 2015 |
| Sign Integral Limited | Information & communication | 2012 |
| Signatures of Distinction Limited | Professional & scientific | 2018 |
| Signum Limited | Construction | 1990 |
| Signxpert UK Ltd | Professional & scientific | 2026 |
| Sikapa Construction? Ltd | Construction | 2024 |
| Siklawi Autoservice Ltd | Wholesale & retail | 2024 |
| Sildi Limited | Professional & scientific | 2011 |
| Silence Design Ltd | Professional & scientific | 2017 |
| Silent Shout Studios Ltd | Information & communication | 2012 |
| Silk Event & Entertainment Co. Limited | Arts & recreation | 2026 |
| Silk Mill Court (Management) Limited | Households | 1977 |
| Silkveloura Ltd | Wholesale & retail | 2026 |
| Silo Systems Tech Limited | Hospitality | 2024 |
| Silva Pictures Ltd | Information & communication | 2018 |
| Silver & BOW Ltd | Administrative & support | 2019 |
| Silver Bar Ltd | Wholesale & retail | 2010 |
| Silver Couriers Ltd | Transport & logistics | 2024 |
| Silver Nautilus Limited | Professional & scientific | 2017 |
| Silver Oak Asset Risk Ltd | Professional & scientific | 2021 |
| Silver Phoenix Ltd | Information & communication | 2025 |
| Silver Sky Invest Ltd | Wholesale & retail | 2022 |
| Silver Stone Coach Works Limited | Wholesale & retail | 2021 |
| Silverbirch Dance Company Ltd | Arts & recreation | 2004 |
| Silverbrook Consultants Ltd | Information & communication | 2019 |
| Silvercrest Signature Homes Ltd | Real estate | 2025 |
| Silverfine Holdings Limited | Real estate | 2016 |
| Silverfine Limited | Manufacturing | 1994 |
| Silverfine Packaging Ltd | Administrative & support | 2025 |
| Silverfine Properties Limited | Real estate | 2021 |
| Silvergate Investment Ltd | Real estate | 2026 |
| Silverline Clean Ltd | Administrative & support | 2026 |
| Silverline Group Limited | Construction | 2023 |
| Silverlining Accountancy Ltd | Professional & scientific | 2010 |
| Silvers Linings Limited | Professional & scientific | 2024 |
| Silverse Limited | Information & communication | 2023 |
| Silverskills International Limited | Professional & scientific | 2016 |
| Silvertime Amusements Limited | Arts & recreation | 1995 |
| Silvertime Casinos Ltd | Arts & recreation | 2018 |
| Silvy Building Ltd | Construction | 2020 |
| Simba BRU Coffee Ltd | Manufacturing | 2022 |
| Simba Enterprise & Investments Ltd | Real estate | 2014 |
| Simba Enterprise (UK) Limited | Real estate | 2018 |
| Simba MSA Property Ltd | Real estate | 2024 |
| Simba Shipping Limited | Transport & logistics | 2009 |
| Simee Limited | Health & social care | 2026 |
| Simon Computer Services Ltd | Information & communication | 2010 |
| Simon Mark Financial Services Ltd | Financial services | 2018 |
| Simon Mattison Ltd | Health & social care | 2016 |
| Simon Mayes Ltd | Financial services | 2024 |
| Simon Speller Limited | Professional & scientific | 2010 |
| Simoncelos Services Ltd | Construction | 2024 |
| Simpex Corporation (Europe) Limited | Wholesale & retail | 2000 |
| Simplay Ltd | Construction | 2018 |
| Simple Company Formations Ltd | Administrative & support | 2016 |
| Simple Progression Ltd | Administrative & support | 2006 |
| Simple Style Guru Ltd | Wholesale & retail | 2017 |
| Simple Work Solutions Ltd. | Construction | 2024 |
| Simply Blue Ltd | Information & communication | 2011 |
| Simply Drainage and Property Services Ltd | Construction | 2020 |
| Simply Feet Limited | Health & social care | 2008 |
| Simply Inked Limited | Other services | 2024 |
| Simplyblue Property Limited | Real estate | 2022 |
| Simplytests Limited | Administrative & support | 2016 |