| SN Autowork Ltd | Wholesale & retail | 2025 |
| SN Drylining Ltd | Construction | 2025 |
| SN Financial Administration Services Ltd | Professional & scientific | 2018 |
| SN Global Ltd | Households | 2025 |
| SN Midlands Solutions Ltd | Construction | 2026 |
| SNA Global Ltd | Wholesale & retail | 2025 |
| SNA Partners Limited | Wholesale & retail | 2023 |
| SNA Traders Limited | Wholesale & retail | 2025 |
| Snabla Limited | Information & communication | 2014 |
| Snack Box Vending Ltd | Hospitality | 2025 |
| Snacksey Ltd | Wholesale & retail | 2025 |
| Snagg Productions Limited | Information & communication | 2025 |
| Snail Mail Ltd | Administrative & support | 2025 |
| Snam Properties (Bracknell) Limited | Real estate | 2020 |
| Snam Properties (London) Limited | Real estate | 2019 |
| Snam Properties Limited | Real estate | 2018 |
| Snapsell Marto Ltd | Wholesale & retail | 2026 |
| Snazz Services Limited | Administrative & support | 2026 |
| SNB Retail Limited | Wholesale & retail | 2026 |
| SNE Magna Ltd | Wholesale & retail | 2024 |
| Sneha Transport Limited | Transport & logistics | 2015 |
| Snelling Electrical Ltd | Construction | 2008 |
| SNG Inc Ltd | Real estate | 2020 |
| SNK Recruitment Ltd | Administrative & support | 2026 |
| SNL Estate Management Ltd | Real estate | 2023 |
| Snnr Limited | Real estate | 2017 |
| Snns Technologies Ltd | Information & communication | 2013 |
| Snow White Cleaning Services Ltd | Construction | 2020 |
| Snowy Catering Ltd | Hospitality | 2021 |
| SNP Commercial Ltd | Construction | 2024 |
| SNS Infotech Limited | Information & communication | 2010 |
| SNS Property Investments Ltd | Real estate | 2021 |
| Snugglenest Ltd | Wholesale & retail | 2025 |
| Snza Ltd | Real estate | 2023 |
| SO Artistic Ltd | Information & communication | 2016 |
| SO Medi-Spa and Aesthetics Limited | Health & social care | 2024 |
| Soapyface Ltd | Wholesale & retail | 2023 |
| Socia Limited | Professional & scientific | 2002 |
| Social Whack Ltd | Professional & scientific | 2023 |
| Socialvar Ltd | Information & communication | 2021 |
| Socrete Ltd | Professional & scientific | 2012 |
| Sofa Dealers Ltd | Wholesale & retail | 2022 |
| Sofa Valley Ltd | Wholesale & retail | 2025 |
| Soffik Consultancy Group Ltd | Hospitality | 2017 |
| Sofia Songs Limited | Arts & recreation | 2023 |
| Sofnet Ltd | Information & communication | 2014 |
| Sofra Grill Ltd | Hospitality | 2026 |
| Soft Breeze Ltd | Information & communication | 2022 |
| Soft Point Consulting Ltd | Information & communication | 2008 |
| Softbloombakes Ltd | Manufacturing | 2026 |
| Softip Limited | Wholesale & retail | 2012 |
| Softlogix Solutions Limited | Information & communication | 2021 |
| Softoo Ltd | Information & communication | 2016 |
| Software Guru Ltd | Information & communication | 2018 |
| Sohaib Iqbal Online Limited | Wholesale & retail | 2024 |
| Sohail Assets Limited | Real estate | 2025 |
| Sohni Beauty Ltd | Other services | 2019 |
| Sohota Estates Ltd | Real estate | 2024 |
| Soil to Aggregates Environmental Limited | Transport & logistics | 2025 |
| SOJ Productions Ltd | Information & communication | 2004 |
| Soko Healthcare Ltd | Health & social care | 2015 |
| SOL Safety Europe Limited | Professional & scientific | 2010 |
| Sola Cleaning Ltd | Administrative & support | 2024 |
| Sola-Sales Limited | Wholesale & retail | 2014 |
| Solaris Developments Ltd | Construction | 2024 |
| Soldel Property Company Limited | Administrative & support | 1950 |
| Solener Ltd | Construction | 2013 |
| Solidbase Housing Ltd | Real estate | 2026 |
| Solidground Construction Ltd | Construction | 2026 |
| Solidoak Real Estate Ltd | Real estate | 2026 |
| Solidtrack Transport Limited | Transport & logistics | 2025 |
| Solitaire Suites Limited | Real estate | 2023 |
| Sollatek (UK) Limited | Manufacturing | 1983 |
| Sollatek Services Ltd | Professional & scientific | 2018 |
| Solo Chauffeur Services Ltd | Transport & logistics | 2020 |
| Solo Spaces Limited | Professional & scientific | 2019 |
| Solpcb Ltd | Manufacturing | 2025 |
| Solsikkevej Limited | Professional & scientific | 2022 |
| Soltronics Ltd | Manufacturing | 2020 |
| Solution Affinity Ltd | Information & communication | 2014 |
| Solution Cleaning Services Limited | Administrative & support | 2026 |
| Solution Fixes Ltd | Wholesale & retail | 2026 |
| Solutionbridge Limited | Wholesale & retail | 2026 |
| Solutionise Consulting Ltd | Information & communication | 2017 |
| Solutions for Everyone Ltd | Information & communication | 2024 |
| Solutions-Facilities Management Ltd | Administrative & support | 2015 |
| SOLUTIONS90 Ltd | Information & communication | 2026 |
| Solvent Group Ltd | Professional & scientific | 2020 |
| Somi SL Limited | Professional & scientific | 2017 |
| Somni Beds Limited | Manufacturing | 2025 |
| Somnumnah Solutions Ltd | Information & communication | 2014 |
| Sonet Consumer Products Limited | Professional & scientific | 1911 |
| Sonet Investments Limited | Financial services | 1995 |
| Sonet Overseas Investments Limited | Financial services | 1998 |
| Sonet Prebbles Limited | Financial services | 1961 |
| Sonet Products Limited | Professional & scientific | 1962 |
| Soniavehiclefix Ltd | Wholesale & retail | 2023 |
| Sonnekus Global Limited | Information & communication | 2014 |
| Sonorad Ltd | Health & social care | 2015 |
| Sonoubil Ltd | Wholesale & retail | 2025 |