| SA Beauty Hartlepool Ltd | Other services | 2020 |
| SA Beauty Lease Holding Ltd | Real estate | 2021 |
| SA Beauty Ltd | Financial services | 2021 |
| SA Beauty Mansfield Ltd | Other services | 2020 |
| SA Beauty Oxford Street Limited | Other services | 2022 |
| SA Beauty Poole Limited | Other services | 2022 |
| SA Beauty Turnpike Ltd | Other services | 2021 |
| SA Design Studio Ltd | Other services | 2014 |
| SA Food Express Ltd | Wholesale & retail | 2026 |
| SA Therapies Limited | Health & social care | 2024 |
| Sa&Da Food Ltd | Hospitality | 2025 |
| SA777 Limited | Real estate | 2024 |
| SA888 Ltd | Transport & logistics | 2025 |
| Saad International Enterprises Ltd | Other services | 2020 |
| Saadouni & Sons Ltd | Hospitality | 2025 |
| Saanvi’S Delight Limited | Manufacturing | 2024 |
| Saar Investments Ltd | Real estate | 2022 |
| SAB Delivery Ltd | Transport & logistics | 2025 |
| SAB Utiliti Limited | Construction | 2022 |
| Sabi Style Ltd | Other services | 2017 |
| Sabios Services Ltd | Construction | 2019 |
| Sabri Transtrade Ltd | Wholesale & retail | 2010 |
| Sabrina Nickelson Ltd | Professional & scientific | 2018 |
| Sabry Marouf Limited | Manufacturing | 2016 |
| Sabs Investment Ltd | Real estate | 2025 |
| Sabs Properties Ltd | Construction | 2019 |
| Sachava Limited | Real estate | 2023 |
| Sachi Invest Limited | Real estate | 2019 |
| Sacred Roots Healing Centre Ltd | Health & social care | 2024 |
| Sadaf Express Ltd | Wholesale & retail | 2025 |
| Sadafa Ltd | Wholesale & retail | 2026 |
| Sadam Khan Ltd | Wholesale & retail | 2025 |
| Sadat Motors Ltd | Wholesale & retail | 2025 |
| Sadgur Krupa Engineering Limited | Administrative & support | 2012 |
| Safa Grill Chicken Shop Ltd | Hospitality | 2020 |
| Safar E Makkah Limited | Administrative & support | 2025 |
| Safari Vending Ltd | Wholesale & retail | 2024 |
| Safe Air Logistics Limited | Transport & logistics | 2025 |
| Safe Park Spaces Limited | Hospitality | 2025 |
| Safe Transporter Ltd | Transport & logistics | 2022 |
| Safe UK Storage Limited | Administrative & support | 2025 |
| Safeguard R&R Ltd | Real estate | 2021 |
| Safety Evolution Limited | Professional & scientific | 2011 |
| Safety Workwear Trading Limited | Wholesale & retail | 2021 |
| Safezone Limited | Administrative & support | 2009 |
| Saffron & Clove Ltd | Hospitality | 2018 |
| Saffron Bloom Ltd | Hospitality | 2025 |
| Saffron Impex Limited | Wholesale & retail | 2012 |
| Safholm Limited | Professional & scientific | 2025 |
| Safi Management Services Ltd | Professional & scientific | 2025 |
| Sagars Holding Ltd | Real estate | 2025 |
| Sahadat Ltd | Hospitality | 2023 |
| Sahailey London Limited | Wholesale & retail | 2024 |
| Sahar Hire Ltd | Administrative & support | 2025 |
| Sahar Pound Place Limited | Wholesale & retail | 2021 |
| Sahar Shah (Edgware) Ltd | Real estate | 2024 |
| Sahar Shah Limited | Real estate | 2024 |
| Sahar Storage Limited | Administrative & support | 2024 |
| Sahara Luxe Limited | Wholesale & retail | 2025 |
| Sahilkotecha Limited | Hospitality | 2025 |
| Sahita Limited | Wholesale & retail | 1999 |
| Sahra UK Ltd | Other services | 2018 |
| SAI 45 Limited | Wholesale & retail | 2022 |
| SAI Nayan Ltd | Real estate | 2020 |
| SAI Niwas Limited | Real estate | 2022 |
| SAI RAM Homes Ltd | Real estate | 2019 |
| SAI Retail Limited | Wholesale & retail | 2010 |
| Sai-Cad Limited | Professional & scientific | 2025 |
| Sai-Tech Properties Ltd | Real estate | 2019 |
| Saiaanshi Homes & Lettings Limited | Real estate | 2022 |
| Saianvi Ltd | Wholesale & retail | 2026 |
| Saif Shamshad ALI Limited | Professional & scientific | 2018 |
| Saim Global Ltd | Wholesale & retail | 2025 |
| Saint Leontie of Radauti Ltd | Other services | 2023 |
| Saisol Ltd | Financial services | 2015 |
| Saiveej Limited | Real estate | 2019 |
| Saiyaara Diaries Ltd | Arts & recreation | 2025 |
| Saiyaara Ltd | Administrative & support | 2025 |
| SAJ Consulting Ltd | Information & communication | 2022 |
| Sajfar Properties Limited | Real estate | 2026 |
| Sajj Fone Doctor Ltd | Wholesale & retail | 2024 |
| Sajni Kotecha Limited | Other services | 2010 |
| Sakali Consulting Limited | Information & communication | 2006 |
| Sakshi Limited | Construction | 2014 |
| Sakura Elite Karate London Limited | Education | 2024 |
| Sala Properties Limited | Real estate | 2001 |
| Saladicious Ltd | Hospitality | 2025 |
| Salar London Limited | Wholesale & retail | 2026 |
| Salar Moll Ltd | Other services | 2024 |
| Sales Hurry Limited | Wholesale & retail | 2024 |
| Salisbury Court (Edgware) Management Company Limited | Households | 2000 |
| Sally Anysz Consulting Ltd | Professional & scientific | 2022 |
| Salnok Goki Ventures Ltd | Information & communication | 2025 |
| Salt & Vinegar FL Ltd | Hospitality | 2021 |
| Salt & Vinegar Restaurant Ltd | Hospitality | 2026 |
| Salt and Peppe IT Engineers Limited | Information & communication | 2023 |
| Salusbury Properties Limited | Real estate | 2017 |
| Salvatore Ltd | Information & communication | 2017 |
| Salvera Ltd | Wholesale & retail | 2025 |
| SAM Parts Ltd | Wholesale & retail | 2025 |