| Samm Home Improvements Ltd | Construction | 2023 |
| Samma Engineering Solutions Limited | Manufacturing | 2013 |
| Samme Advisory Ltd | Administrative & support | 2026 |
| Samoil Ltd | Transport & logistics | 2020 |
| Sampagita Ltd | Health & social care | 2023 |
| Samraw Traders Ltd | Wholesale & retail | 2026 |
| Sams Dyno Centre Limited | Wholesale & retail | 2003 |
| Sams Events Control Limited | Administrative & support | 2018 |
| Samsara Aesthetics Ltd | Other services | 2025 |
| Samson Eventing Ltd | Agriculture & fishing | 2025 |
| Samvee Staff Services Ltd | Administrative & support | 2019 |
| Samways Contractors Ltd | Administrative & support | 2024 |
| Samways Properties Ltd | Real estate | 2018 |
| Sanaghan Limited | Information & communication | 2016 |
| Sanbrook Homes Limited | Construction | 2025 |
| Sanchini's Café Limited | Hospitality | 2021 |
| Sanctum Accommodation Services Limited | Real estate | 2010 |
| Sand & Sealed Limited | Construction | 2005 |
| Sand Box Properties Ltd | Real estate | 2022 |
| Sandalcliff Limited | Other services | 2001 |
| Sandalwood Property Ltd | Real estate | 2020 |
| Sandar Properties Limited | Real estate | 2026 |
| Sandbrook Land & Minerals Limited | Professional & scientific | 2024 |
| Sandecor Kitchen & Bedroom Ltd | Construction | 2022 |
| Sandecor Services Ltd | Construction | 2019 |
| Sandhar Estate Ltd | Real estate | 2026 |
| Sandher Services Ltd | Administrative & support | 2025 |
| Sandhill Facilities Limited | Construction | 2021 |
| Sandhu Constructions Midlands Limited | Construction | 2024 |
| Sandhu Fabric House Ltd | Wholesale & retail | 2026 |
| Sandhu Property Enterprises Limited | Real estate | 2022 |
| Sandra Wiggins Consulting Ltd | Professional & scientific | 2023 |
| Sandra's Corner Limited | Hospitality | 2021 |
| Sang Real Tattoo Ltd | Wholesale & retail | 2018 |
| Sangra Brothers Ltd | Real estate | 2021 |
| Sanko Associates Ltd | Professional & scientific | 2016 |
| Sanny’S Commercials Ltd | Wholesale & retail | 2024 |
| Sansa Properties Ltd | Real estate | 2024 |
| Sansarion Ltd | Wholesale & retail | 2024 |
| Santa Carla (Holdings) Limited | Financial services | 2022 |
| Santino's Health and Fitness Ltd | Arts & recreation | 2016 |
| SAP Consultants Ltd | Information & communication | 2023 |
| SAP Essex Limited | Health & social care | 2025 |
| SAP Global Consulting Services Ltd | Information & communication | 2014 |
| SAP IT Security Solutions Limited | Information & communication | 2022 |
| SAP POD Consultants Ltd | Information & communication | 2014 |
| Saphir Group Ltd | Administrative & support | 2026 |
| Sapna Christi Ltd | Extraterritorial | 2018 |
| Sapperton Manor Estates Limited | Real estate | 2004 |
| Sapphire Health Partners Limited | Administrative & support | 2026 |
| Sapphire Homes Group Ltd. | Real estate | 2022 |
| Sappling Tales Ltd | Information & communication | 2024 |
| Sara and Maaz Limited | Health & social care | 2013 |
| Sara Maaz Holdings Limited | Real estate | 2025 |
| Saracen Design Consultants Limited | Professional & scientific | 2022 |
| Sarah Bates Elite Technique Limited | Education | 2023 |
| Sarah Bates School of Swimming Limited | Education | 2022 |
| Sarah Joyce Holdings Limited | Financial services | 2020 |
| Sarah Joyce Property Limited | Real estate | 2019 |
| Sarah Smith Cardiology EOT Ltd | Professional & scientific | 2024 |
| Sarah Smith Cardiology Ltd | Professional & scientific | 2014 |
| Sarah Storer Consulting Ltd | Professional & scientific | 2018 |
| Sarah Windrum Limited | Professional & scientific | 2017 |
| Sarah&Co Property Ltd | Real estate | 2024 |
| Sarah's Feast Limited | Hospitality | 2025 |
| Sarba Solutions Ltd | Wholesale & retail | 2025 |
| Sarekjakko Ltd | Construction | 2009 |
| Sarj's Travel Limited | Transport & logistics | 2024 |
| Sarkotech R&D Ltd | Information & communication | 2025 |
| Sarmor Wedding & Event Decoration Ltd | Hospitality | 2024 |
| Sarohi Limited | Professional & scientific | 2026 |
| Sarora Limited | Real estate | 2025 |
| Sarsfield Limited | Professional & scientific | 2014 |
| Sartec Software Limited | Information & communication | 2023 |
| Sarunia Food & Drink Limited | Hospitality | 2023 |
| Sarup & Sons Limited | Wholesale & retail | 2019 |
| Sarwan Commercial Properties Limited | Real estate | 2019 |
| Sarwan Holdings Limited | Financial services | 2019 |
| Sarwar Enterprise Derby Ltd | Wholesale & retail | 2024 |
| SAS HMO Solutions Ltd | Real estate | 2021 |
| SAS Property Solutions Ltd | Construction | 2025 |
| SAS20 Ltd | Health & social care | 2012 |
| Sasanka Ltd | Wholesale & retail | 2021 |
| Sasheva Fashion Ltd | Wholesale & retail | 2018 |
| Sass Services Ltd | Information & communication | 2015 |
| Sassy Hair Ltd | Other services | 2002 |
| SAT Medics Ltd | Health & social care | 2015 |
| SAT3PM Limited | Professional & scientific | 2017 |
| Satauh Limited | Construction | 2023 |
| Satin Ltd | Professional & scientific | 2021 |
| Satmed Group Ltd | Real estate | 2025 |
| Saturn Engineering Ltd | Administrative & support | 2012 |
| Saturn Haulage Limited | Transport & logistics | 2024 |
| Saturn Lettings Ltd | Real estate | 2023 |
| Sauber Cars Limited | Wholesale & retail | 2022 |
| Sauk Training Limited | Education | 2025 |
| Saurce Ltd | Information & communication | 2025 |
| Sauve Carpets Ltd | Wholesale & retail | 2025 |
| Savanna Gold & Jewellery Ltd | Wholesale & retail | 2025 |
| Savannah Ridge Ltd | Agriculture & fishing | 2026 |