| Sandbanks Clinic Limited | Health & social care | 2018 |
| Sandbanks Digital Limited | Information & communication | 2026 |
| Sandbanks Holding Limited | Real estate | 2022 |
| Sandbanks Laser Ltd | Other services | 2025 |
| Sandbanks Medi Clinic Limited | Health & social care | 2016 |
| Sandbanks NO. 1 Management Company Limited | Households | 1972 |
| Sandbanks NO. 2 Management Company Limited | Households | 1973 |
| Sandbanks One Ltd | Households | 2024 |
| Sandbanks Premium Management Limited | Hospitality | 2025 |
| Sandbanks Pressure Washing Ltd | Administrative & support | 2025 |
| Sandbanks RIB Training Limited | Education | 2023 |
| Sandbanks Signature Limited | Real estate | 2025 |
| Sandbanks Solar Solutions Ltd | Construction | 2025 |
| Sandbanks Style Limited | Wholesale & retail | 2014 |
| Sandbanks Watersports Ltd | Wholesale & retail | 2024 |
| Sandbar Stays Ltd | Real estate | 2024 |
| Sandbourne Ltd | Financial services | 2016 |
| Sandbourne Place Management Company Limited | Households | 2006 |
| Sandboy Management Company Limited | Households | 2015 |
| Sandeman Yacht Company Limited | Wholesale & retail | 2007 |
| Sanderling Court RTM Company Limited | Real estate | 2010 |
| Sandford BRZ Ltd | Wholesale & retail | 2026 |
| Sandford Court Residents Association(Southbourne)Limited | Households | 1960 |
| Sandford Lane (Wareham) Management Company Limited | Real estate | 2023 |
| Sandford Pizza Ltd | Hospitality | 2026 |
| Sandown Automotive Limited | Wholesale & retail | 2026 |
| Sandown Legacy Investments Limited | Financial services | 2025 |
| Sandown Motor Holdings Limited | Wholesale & retail | 2025 |
| Sandown Motors Limited | Wholesale & retail | 2013 |
| Sandpiper Marketing Ltd | Administrative & support | 2016 |
| Sandringham Court Management Company (Parkstone) Limited | Households | 1991 |
| Sandringham Freehold Limited | Households | 2001 |
| Sandydown Bodyworks Limited | Wholesale & retail | 1981 |
| Sandyholme Holiday Park Limited | Hospitality | 2000 |
| Sandyhurst Management Company Limited | Households | 1986 |
| Sanitas Accountancy Ltd | Professional & scientific | 2025 |
| Sanitas Holdings Ltd | Financial services | 2022 |
| Sanitek UK Ltd | Manufacturing | 2020 |
| Sanjan KC Ltd | Wholesale & retail | 2025 |
| Sano Mens Ltd | Health & social care | 2018 |
| Sanshin Health Ltd | Health & social care | 2024 |
| Santiago J. Diaz Ltd | Other services | 2022 |
| Santo Huberto Ltd | Transport & logistics | 2020 |
| Santolamazza Solutions Ltd | Administrative & support | 2025 |
| Santorini Style Ltd | Wholesale & retail | 2025 |
| Santuri Ltd | Information & communication | 2024 |
| Sanyati Holdings Ltd. | Real estate | 2001 |
| Saphina Ltd | Real estate | 2026 |
| Sapiens Masterpieces Ltd | Wholesale & retail | 2025 |
| Sapphire Grove and Sapphire Glen Management Company Limited | Households | 1988 |
| Sapphire Safety Solutions Ltd | Professional & scientific | 2024 |
| Sapphire Swan Ltd | Manufacturing | 2020 |
| Sarah Jane Bridal Ltd | Wholesale & retail | 2020 |
| Sarah Watson Design Limited | Professional & scientific | 2018 |
| Sard Derek Junior Brown Ltd | Extraterritorial | 2023 |
| Sarene Yachting Studio Ltd | Professional & scientific | 2026 |
| Saru Healthcare Services Limited | Health & social care | 2025 |
| Sarwat Nazir Marts Limited | Manufacturing | 2025 |
| Sarx Technology Limited | Administrative & support | 2018 |
| Sashalira Ltd | Information & communication | 2025 |
| Sassy Sober MUM Ltd | Health & social care | 2022 |
| Satao Group Ltd | Construction | 2018 |
| Satch Services Limited | Health & social care | 2025 |
| Satori OPS Ltd | Information & communication | 2023 |
| Satsuma Bitcoin Ltd | Information & communication | 2012 |
| Saturn Medical Limited | Manufacturing | 2016 |
| Saturnin Limited | Wholesale & retail | 2020 |
| Saudulhassan Ltd | Wholesale & retail | 2024 |
| Sauna Stable Ltd | Manufacturing | 2026 |
| Savage Solutions Ltd | Construction | 2026 |
| Savantix UK Ltd | Manufacturing | 2023 |
| Savard Ltd | Professional & scientific | 2022 |
| Save With ZEE Ltd | Wholesale & retail | 2025 |
| Savernake Consulting Limited | Administrative & support | 2003 |
| Saviano Holdings Limited | Real estate | 2020 |
| Savill and Southcombe LLP | | 2023 |
| Saving Lives Academy Limited | Health & social care | 2023 |
| Saving YOU Money Limited | Other services | 2020 |
| Savoie Adventure Limited | Administrative & support | 2013 |
| Savryo Ltd | Wholesale & retail | 2025 |
| Savvy Radish Ltd | Hospitality | 2019 |
| Savvy Steals Ltd | Wholesale & retail | 2025 |
| Sawabona African Global College Ltd | Education | 2024 |
| Sawubona Design Ltd | Wholesale & retail | 2024 |
| SAX Sons Property Ltd | Real estate | 2021 |
| SAX100 Limited | Arts & recreation | 2022 |
| Saxby Lighting Limited | Wholesale & retail | 2001 |
| Saxon Holiday Lodges Limited | Real estate | 2018 |
| Saxoncross Limited | Real estate | 1984 |
| SAY AS YOU SEE Limited | Wholesale & retail | 2025 |
| Sayless Mindset Ltd. | Information & communication | 2024 |
| SB Auto-Moto Ltd | Wholesale & retail | 2023 |
| SB Building & Property Maintenance Ltd | Construction | 2024 |
| SB INT Limited | Administrative & support | 2017 |
| SB1101 Limited | Professional & scientific | 2026 |
| Sbfs Consulting Limited | Administrative & support | 2022 |
| SBS Locum GP Limited | Health & social care | 2025 |
| SBS MD Ltd | Information & communication | 2023 |
| SBS Solutions Limited | Information & communication | 2001 |
| SBS Spas Ltd | Wholesale & retail | 2003 |