| SB Time Ltd | Hospitality | 2013 |
| SB Wealth Associates Ltd | Financial services | 2021 |
| Sb&Sk Limited | Other services | 2022 |
| SB2 Medical Limited | Health & social care | 2024 |
| SBA Assets Ltd | Real estate | 2019 |
| SBB International Limited | Wholesale & retail | 2004 |
| SBB Property Ltd | Real estate | 2022 |
| Sbdm Ltd | Wholesale & retail | 2025 |
| Sbee’S Supplies Ltd | Wholesale & retail | 2025 |
| Sbepic Ltd | Information & communication | 2011 |
| SBI Platinum Property Ltd | Construction | 2024 |
| SBJ International Group Ltd | Mining & quarrying | 2024 |
| SBJ Military Ltd | Manufacturing | 2025 |
| Sbkk Consulting Limited | Professional & scientific | 2023 |
| SBM (Northern) Limited | Hospitality | 2018 |
| SBP Homes Ltd | Real estate | 2025 |
| Sbrr Properties Ltd | Real estate | 2021 |
| SBT Global Accountants Ltd | Professional & scientific | 2021 |
| SBT Group Ltd | Professional & scientific | 2026 |
| SBY Properties Ltd | Real estate | 2018 |
| SC Hatch END Limited | Real estate | 2020 |
| SC Long Limited | Financial services | 2017 |
| SC Property a Limited | Real estate | 2025 |
| SC Ruislip Limited | Construction | 2020 |
| SC Stirs Limited | Financial services | 2017 |
| SC Surbiton 2 Ltd | Real estate | 2021 |
| SC Surbiton Group Ltd | Real estate | 2021 |
| SC Surbiton Limited | Real estate | 2020 |
| SC Travel Ltd | Transport & logistics | 2019 |
| SC85 Limited | Financial services | 2025 |
| Scala Homes LLP | | 2025 |
| Scale Better Ltd | Information & communication | 2023 |
| Scaloscopes & Co Ltd | Professional & scientific | 2025 |
| Scamp Apple Ltd | Administrative & support | 2023 |
| Scandal Limited | Construction | 2025 |
| Scandi Smile Centre Limited | Health & social care | 2021 |
| Scanletts (Electrical Contractors) Limited | Real estate | 1963 |
| Scanmex Ltd | Wholesale & retail | 2001 |
| Scarlet Macaw Limited | Wholesale & retail | 2026 |
| Scatbuild Ltd | Construction | 2025 |
| Sccl Tutoring Limited | Education | 2019 |
| Sccore Pharmas UK Limited | Wholesale & retail | 2025 |
| Scentara Limited | Wholesale & retail | 2026 |
| Scente London Ltd | Manufacturing | 2025 |
| Scents Laundry Ltd | Other services | 2026 |
| Scer Solutions Ltd | Information & communication | 2022 |
| Schaefer Group Limited | Transport & logistics | 2025 |
| Schako Limited | Wholesale & retail | 1996 |
| Schengen Visa Agents Ltd | Professional & scientific | 2022 |
| Scholars Court (Cowley) Management Company Limited | Real estate | 2008 |
| Scholarv (UK) Limited | Information & communication | 2024 |
| School Champ Limited | Education | 2023 |
| Schroeters Limited | Real estate | 2018 |
| Schweitzer Productions Ltd | Administrative & support | 2012 |
| Schypors Ltd | Construction | 2021 |
| Scimitar House (Holdings) Limited | Construction | 2016 |
| Scimitar House Limited | Real estate | 2014 |
| Scion Environmental LFS Ltd | Professional & scientific | 2022 |
| Scissors Scissors Limited | Wholesale & retail | 2022 |
| Scitus Limited | Real estate | 2018 |
| SCM Consulting Ltd | Information & communication | 2022 |
| SCN4A Investments Ltd | Professional & scientific | 2021 |
| Scobre Holdings Limited | Real estate | 2023 |
| Scolara Ltd | Manufacturing | 2023 |
| Scope at Limited | Administrative & support | 1999 |
| Scope Wedge Ltd | Wholesale & retail | 2023 |
| Scopeforce Limited | Information & communication | 2023 |
| Scopefruit Ltd | Wholesale & retail | 2024 |
| Scopesky Real Estate Limited | Other services | 2013 |
| Scopeway Limited | Wholesale & retail | 2007 |
| Scorpio Construction (London) Limited | Construction | 2003 |
| Scorpion Entertainment Ltd | Information & communication | 2023 |
| Scorpion Film Production Limited | Information & communication | 2026 |
| Scorton Care Ltd | Health & social care | 2017 |
| Scott Knight Consultancy Limited | Real estate | 2001 |
| Scott LEE Limited | Wholesale & retail | 2014 |
| Scott Whiteley Limited | Health & social care | 2021 |
| Scottsview Ltd | Real estate | 2020 |
| Scout My Holidays Ltd | Administrative & support | 2019 |
| Scowing Limited | Transport & logistics | 2012 |
| Scozak Development Limited | Construction | 2013 |
| SCP Management Limited | Wholesale & retail | 2021 |
| SCP Property Holdings Ltd | Real estate | 2023 |
| Scranton Limited | Real estate | 2004 |
| Scratch Advertising Limited | Professional & scientific | 2025 |
| Scratchtime Productions Limited | Other services | 2011 |
| Screenai Limited | Information & communication | 2023 |
| Screentech Consultants Limited | Information & communication | 2012 |
| Scribbles Early Learning Centre (Wembley Hill) Ltd | Health & social care | 2024 |
| Scribbles Early Learning Centre Ltd | Health & social care | 2018 |
| Scrub and Clean Ltd | Administrative & support | 2021 |
| Scruffy Teddy Productions Limited | Administrative & support | 2021 |
| Scsl Group Limited | Administrative & support | 2025 |
| Scsl Investments Ltd | Real estate | 2015 |
| Scun Holdings Ltd | Financial services | 2026 |
| Scun Ltd | Wholesale & retail | 2024 |
| SD Group-Uk Ltd | Financial services | 2025 |
| SD Housing Hub Ltd | Real estate | 2021 |
| SD Interior Construction Ltd | Construction | 2020 |
| SD Medical Secretary Services Ltd | Administrative & support | 2025 |