| Roy’S Kitchen Ltd | Hospitality | 2022 |
| Rozafa Construction Limited | Construction | 2017 |
| Rozel Ltd | Other services | 2025 |
| RP Painters Ltd | Construction | 2023 |
| RS Creative Studio Ltd | Information & communication | 2023 |
| RS Marketing Consultancy Ltd | Professional & scientific | 2022 |
| Rshc Services Limited | Administrative & support | 2007 |
| RSJ Tyres and Auto Styling Limited | Wholesale & retail | 2019 |
| RSP Asset Holdings Ltd | Real estate | 2026 |
| RSP Consulting Ltd | Administrative & support | 2025 |
| RSS Fast Food Suppliers Ltd | Wholesale & retail | 2014 |
| RT Business Consultants Ltd | Professional & scientific | 2026 |
| Rtco Global Ltd | Information & communication | 2025 |
| Rubander Ltd | Real estate | 2025 |
| Ruchulu Ltd | Hospitality | 2024 |
| Rujeloshaz Properties Ltd. | Real estate | 2020 |
| Run Paint Run Ltd | Administrative & support | 2009 |
| Runnel ADS Ltd | Administrative & support | 2023 |
| Rushforth Ltd | Construction | 2021 |
| Rvent Ltd | Health & social care | 2026 |
| Rykz Logistics Ltd | Wholesale & retail | 2025 |
| RZQ Digital Ltd | Information & communication | 2026 |
| S Cube Properties Ltd | Real estate | 2019 |
| S J Montpelier Limited | Professional & scientific | 2007 |
| S K Cole Entertainment Ltd | Information & communication | 2025 |
| S Lounge Imports Ltd | Wholesale & retail | 2025 |
| S O Mayhew Ltd | Extraterritorial | 2020 |
| S Phillips Electrical Limited | Construction | 2014 |
| S Properties K Ltd | Real estate | 2025 |
| S R N M Limited | Professional & scientific | 2017 |
| S S J Properties Limited | Real estate | 2014 |
| S&G PT Limited | Other services | 2024 |
| S&G Studios Ltd | Professional & scientific | 2020 |
| S&O One Limited | Real estate | 2025 |
| S&S Ukaj Mobile Tyres & Recovery Ltd | Wholesale & retail | 2023 |
| S&T Textile Ltd | Wholesale & retail | 2020 |
| S.A.S Accommodation Ltd | Real estate | 2024 |
| S.W.A. Electrics Limited | Construction | 2010 |
| S.W.A. Group Ltd | Construction | 2015 |
| S3 Business Solutions Ltd | Information & communication | 2008 |
| S5V3 Couture Limited | Wholesale & retail | 2026 |
| SA Boxridge Limited | Real estate | 2017 |
| SA Linen and Laundry Services Ltd | Other services | 2023 |
| Saba Electrical Solutions Limited | Construction | 2019 |
| Sachu Estates Limited | Real estate | 2017 |
| Sadi House Management Limited | Households | 1981 |
| Safa Business Services Limited | Other services | 2021 |
| Safe & Secure Homes Ltd | Health & social care | 2016 |
| Safeguarding Every Day Ltd | Education | 2022 |
| Saffron Mews (Croydon) Management Limited | Households | 2011 |
| Safmo Ltd | Education | 2025 |
| SAI Orthopaedics Ltd | Health & social care | 2018 |
| SAI Sakthi Technologies Limited | Information & communication | 2017 |
| SAI Structural Design Ltd | Construction | 2018 |
| SAI Yesha Limited | Hospitality | 2024 |
| SAI Yeshaa Limited | Hospitality | 2026 |
| Saint Augustines Limited | Households | 2016 |
| Saiten Ltd | Information & communication | 2025 |
| Sakri Tech Limited | Information & communication | 2020 |
| Sakura RTM Company Limited | Households | 2026 |
| Salaree Ltd | Information & communication | 2024 |
| Salesdrive CRM Limited | Information & communication | 2014 |
| Saleso Ltd | Wholesale & retail | 2025 |
| Salim Catering Limited | Hospitality | 2017 |
| Salon Seven Hairdressers Ltd | Other services | 2023 |
| Salur Metal Limited | Manufacturing | 2020 |
| Sam's Kebab Ltd | Hospitality | 2012 |
| Sam's Services UK Ltd | Other services | 2017 |
| Samad UK Limited | Wholesale & retail | 2009 |
| Samal Limited | Professional & scientific | 1999 |
| Samaria Global Corporation Ltd | Information & communication | 2016 |
| Samaria Global Finance Limited | Financial services | 2015 |
| Samaria Ventures Ltd | Real estate | 2023 |
| Samliv Property Services Limited | Water & waste | 2014 |
| Sammandav Ltd | Health & social care | 2023 |
| Samosa Chai and Masti Ltd | Hospitality | 2026 |
| Sanders Place Limited | Households | 2022 |
| Sanderstead Consulting Ltd | Other services | 2018 |
| Sanderstead Court Freehold Limited | Real estate | 1994 |
| Sanderstead Dog Care Ltd | Other services | 2025 |
| Sanderstead Ltd | Health & social care | 2024 |
| Sanderstead Tandoori Limited | Hospitality | 2023 |
| Sanderstead Tandoori Restaurant Limited | Hospitality | 2026 |
| Sanderstead Total Footcare Limited | Other services | 2025 |
| Sanderstead Windows Ltd | Construction | 2021 |
| Sandra Cooke Ltd | Arts & recreation | 2007 |
| Sandra Marie Jones Cares Ltd | Health & social care | 2025 |
| Sankofa Restaurant Ltd | Hospitality | 2026 |
| Sanli Design Limited | Professional & scientific | 2005 |
| Sanstacitus Research Limited | Financial services | 2025 |
| Sanus Integra Ltd | Wholesale & retail | 2025 |
| Sapore Vero BR3 Ltd | Hospitality | 2024 |
| Sapphire Property Investments Limited | Real estate | 2018 |
| Saprme Consultancy Ltd | Information & communication | 2022 |
| Sara Xhulio Café Ltd | Hospitality | 2026 |
| Saran International UK Limited | Professional & scientific | 2025 |
| Saray Grill & Bar Ltd | Hospitality | 2022 |
| Sarhap Hair Line Ltd | Other services | 2023 |
| Sari Kartal Ltd | Hospitality | 2024 |
| Sasmaz Grill Ltd | Hospitality | 2026 |