| Sagoo Properties Ltd. | Real estate | 2014 |
| Sagrada Construction Limited | Construction | 2025 |
| Saha Technologies Ltd | Hospitality | 2007 |
| Sahami Holdings Ltd | Real estate | 2024 |
| Sahara MAB Ltd | Wholesale & retail | 2023 |
| Sahara Youth Care Homes Ltd | Health & social care | 2024 |
| Sahdelight Ltd | Hospitality | 2026 |
| Sahm Splice Limited | Manufacturing | 1998 |
| Sahni Global Limited | Wholesale & retail | 2025 |
| SAI Gorav Consulting Services Ltd | Information & communication | 2011 |
| SAI MAA (Holbeck) Limited | Wholesale & retail | 2016 |
| SAI MAA (Malvern) Ltd | Wholesale & retail | 2014 |
| SAI MAA Ltd | Real estate | 2012 |
| SAI Properties International Ltd | Real estate | 2022 |
| SAI Properties Ltd | Real estate | 2004 |
| SAI Silk Properties Ltd | Real estate | 2025 |
| SAI Silk Thai Ltd | Hospitality | 2018 |
| SAI Technical Services Limited | Information & communication | 2012 |
| SAI UK Properties Ltd | Real estate | 2022 |
| SAI Vape Retail Express Ltd | Other services | 2024 |
| Saibah Rani Ltd | Hospitality | 2026 |
| Said Musavir Sadat Ltd | Wholesale & retail | 2026 |
| Saiguruveer Limited | Real estate | 2022 |
| Saike Juniors Ltd | Real estate | 2022 |
| Saimatek Limited | Information & communication | 2023 |
| Sainsbury Property Ltd | Real estate | 2026 |
| Saint Digital Ltd | Professional & scientific | 2019 |
| Saint Etienne Limited | Information & communication | 2003 |
| Saint Jude (Leeds) Ltd | Hospitality | 2020 |
| Saint Raphael RS Limited | Financial services | 2026 |
| Saint Theodore Limited | Wholesale & retail | 2024 |
| Saipra Properties Limited | Real estate | 2024 |
| Sair Speed Ltd | Transport & logistics | 2025 |
| Saitama UK Limited | Professional & scientific | 2025 |
| Saitong Ltd | Hospitality | 2024 |
| SAJ Global Enterprises Ltd | Professional & scientific | 2014 |
| SAJ Wheels Ltd | Wholesale & retail | 2024 |
| Sajari Ltd | Professional & scientific | 2018 |
| Sajid & Sajid Enterprises Limited | Hospitality | 2014 |
| Sajid Shah Limited | Health & social care | 2008 |
| Sajim Ltd | Information & communication | 2018 |
| SAK Produce Limited | Wholesale & retail | 2018 |
| SAKAR2025 Ltd | Hospitality | 2025 |
| Saketh Properties Ltd | Real estate | 2024 |
| Sakhi Creations Limited | Wholesale & retail | 2025 |
| Sakin Healthcare Ltd | Health & social care | 2025 |
| Sakira Limited | Real estate | 2011 |
| Saklikent (Developments) Limited | Real estate | 2006 |
| Saksons Properties Ltd | Real estate | 2024 |
| Sakura Motor Limited | Wholesale & retail | 2024 |
| SAL National Ltd | Wholesale & retail | 2025 |
| SAL Transporters Ltd | Transport & logistics | 2024 |
| SAL Yorkshire Ltd | Construction | 2025 |
| Salaam Salaam CIC | Arts & recreation | 2024 |
| Salam Restaurant Ltd | Hospitality | 2021 |
| Salam Stays Travel Ltd | Administrative & support | 2024 |
| Salamander Holidays Ltd | Hospitality | 2024 |
| Salamander Pumped Shower Systems Limited | Manufacturing | 1993 |
| Salamander Solutions Ltd | Professional & scientific | 2012 |
| Salamander Strategies Ltd | Professional & scientific | 2024 |
| Salameh Solutions Ltd | Health & social care | 2026 |
| Salamon & Seaber Limited | Professional & scientific | 1980 |
| Salar Galobal Ltd | Wholesale & retail | 2025 |
| Salaudeen Smiles Limited | Health & social care | 2024 |
| Salbert Limited | Real estate | 2016 |
| Sale Agreed Homes Ltd | Real estate | 2025 |
| Salebara Ltd | Real estate | 2025 |
| Saleem Estates (Yorkshire) Ltd | Real estate | 2023 |
| Saleem Jewellers Ltd | Manufacturing | 2025 |
| Saleemmed Limited | Health & social care | 2018 |
| Saleh Industries Limited | Hospitality | 2021 |
| Saleha Consulting Limited | Real estate | 2016 |
| Salem Community Services Ltd | Health & social care | 2019 |
| Salem Group Holdings Ltd | Professional & scientific | 2008 |
| Salema Mohammed Consultancy Ltd | Other services | 2018 |
| Sales Machine Limited | Administrative & support | 2014 |
| Sales Source Ltd | Professional & scientific | 2022 |
| SALES4SME Ltd | Manufacturing | 2017 |
| Salesco Investments Limited | Professional & scientific | 2011 |
| Salfit Services Limited | Administrative & support | 2019 |
| Salim Malik Ltd | Health & social care | 2022 |
| Salivation Properties Ltd | Real estate | 2023 |
| Sally Cobbald Limited | Professional & scientific | 2015 |
| Sally MAC Learning Solutions Limited | Professional & scientific | 2010 |
| Salma Bar & Kitchen Ltd | Hospitality | 2025 |
| Salma Furniture Ltd | Manufacturing | 2021 |
| Salon 24 Eleven Ltd | Other services | 2016 |
| Salon Novu Ltd | Other services | 2021 |
| Salt & Foam Golf Courses Ltd | Real estate | 2021 |
| Salt & Foam Ltd | Hospitality | 2019 |
| Salt and Pepper Special Ltd | Hospitality | 2025 |
| Salt and Sawdust Ltd | Manufacturing | 2024 |
| Salt and Smoke Ltd | Wholesale & retail | 2017 |
| Salt Capital Construction Ltd | Construction | 2023 |
| Salt Capital Investments Limited | Financial services | 2021 |
| Salt Sisters Limited | Wholesale & retail | 2025 |
| Salt&Pepper Stop Ltd | Hospitality | 2026 |
| Salt's Catering Ltd | Hospitality | 2012 |
| Saltaire Digital Limited | Information & communication | 2016 |
| Saltbank Properties Limited | Real estate | 2002 |