| Rosag Group Ltd | Real estate | 2025 |
| Rosarr Healthcare Limited | Health & social care | 2022 |
| Rosben Properties Ltd | Construction | 2025 |
| Rose Amaya Holistics Ltd | Health & social care | 2025 |
| Rose Beauty Bar Ltd | Other services | 2020 |
| Rose Cafe Southwark Ltd | Hospitality | 2024 |
| Rose MAY Management Limited | Real estate | 2016 |
| Rose Refurbishment & Construction Ltd | Construction | 2025 |
| Rosen Construction Ltd | Construction | 2023 |
| Rosewick Construction Limited | Construction | 2020 |
| Rosewick Property Limited | Real estate | 2026 |
| Roshana Properties Ltd | Real estate | 2021 |
| Rospina Plastering Ltd | Construction | 2024 |
| Ross Hire Ltd | Administrative & support | 2023 |
| Ross Street Freehold Limited | Households | 2025 |
| Rouj Limited | Construction | 2026 |
| Route Cafe Ltd | Extraterritorial | 2017 |
| Rovon Phone Ltd | Wholesale & retail | 2026 |
| Rowaderm Medics Ltd | Health & social care | 2022 |
| Rowan Building Services Ltd | Construction | 2023 |
| Rowe Investment & Lettings Ltd | Real estate | 2025 |
| Rowlands Bistro Limited | Hospitality | 2008 |
| Rowleys of Kent Limited | Education | 2015 |
| Roxie Industries Limited | Professional & scientific | 2023 |
| ROY ALE Supermarket Limited | Wholesale & retail | 2020 |
| Royale Cosmetica Ltd | Other services | 2026 |
| Royel Holdings Ltd | Construction | 2025 |
| Royel Plastering Services Ltd | Construction | 2025 |
| Royels Limited | Real estate | 2024 |
| Royle Consultants Limited | Professional & scientific | 2012 |
| Royél Decor (South) Ltd | Construction | 2024 |
| RP & AG Car Spa's Ltd | Wholesale & retail | 2025 |
| RPJ Jhalli Ltd | Real estate | 2023 |
| RPM Kent Ltd | Construction | 2015 |
| RPS Online Ltd | Construction | 2023 |
| Rqra Ltd | Professional & scientific | 2015 |
| RR First Drainage Care Limited | Water & waste | 2021 |
| RR Group of Companies UK Limited | Hospitality | 2024 |
| Rrbw Ltd | Other services | 2011 |
| RRN Foods Grill Limited | Hospitality | 2024 |
| RSA77 Maintenance Ltd | Construction | 2026 |
| RSM Invprop Ltd | Real estate | 2021 |
| RSP Building & Development Ltd | Construction | 2021 |
| RSW (Kent) Limited | Construction | 2012 |
| RT Express Ltd | Transport & logistics | 2017 |
| RTF Motorworks Ltd | Wholesale & retail | 2024 |
| Rtisan Ltd | Information & communication | 2014 |
| RTTRADING07 Limited | Wholesale & retail | 2023 |
| RU Cafe Limited | Hospitality | 2020 |
| Rubicom Services Ltd | Information & communication | 2024 |
| Rubicon Vale Ltd | Professional & scientific | 2018 |
| Rueretail Ltd | Wholesale & retail | 2023 |
| Ruibao Company Ltd | Manufacturing | 2023 |
| Ruifeng International Trade Limited | Wholesale & retail | 2024 |
| Ruihua International Co., Ltd | Wholesale & retail | 2022 |
| Rukkenzy Care Ltd | Health & social care | 2022 |
| Rukkie Styles Ltd | Wholesale & retail | 2024 |
| Rupe Ltd | Information & communication | 2024 |
| Ruprai Construction Limited | Construction | 2010 |
| RV Alimodian Engineering Services Ltd | Professional & scientific | 2016 |
| RV Technologies Softwares Private Limited | Information & communication | 2020 |
| Ryall & Bartle Electrical Services Ltd | Construction | 2016 |
| Rydal Photography Limited | Professional & scientific | 2016 |
| RYE Street Farm Equestrian Centre Ltd | Other services | 2026 |
| Rykers Recycling Ltd | Water & waste | 2024 |
| Rywo Limited | Wholesale & retail | 2026 |
| S & a Company London Limited | Hospitality | 2001 |
| S & B BTL Investments Ltd | Real estate | 2022 |
| S & B Group Trade Limited | Real estate | 2016 |
| S & J Wenman Limited | Construction | 2011 |
| S & S K Consulting Ltd | Professional & scientific | 2020 |
| S & S Signal Solutions Limited | Administrative & support | 2015 |
| S E L Clarke Developments Ltd | Construction | 2022 |
| S Freeman Consultancy Limited | Real estate | 2021 |
| S Jones (South East) Ltd | Construction | 2026 |
| S K Banerjee Limited | Health & social care | 2015 |
| S M Osborne Plumbing & Heating Engineer Limited | Professional & scientific | 2004 |
| S&B Roofing Ltd | Construction | 2025 |
| S&D Capital Advisory Limited | Financial services | 2025 |
| S&H Estates Limited | Real estate | 2014 |
| S&H Welding Services Limited | Extraterritorial | 2021 |
| S&I Diagnostic Services Ltd | Public administration | 2021 |
| S.E.Burt Plumbing & Heating Ltd | Construction | 2017 |
| S.E.L. Clarke Contractors Limited | Construction | 1993 |
| S.I.Service Solutions LLP | | 2017 |
| S.Parker Electrical Limited | Construction | 2015 |
| S1 Performance Ltd | Wholesale & retail | 2020 |
| S3H Consulting Ltd | Professional & scientific | 2026 |
| SA Associate Creation Ltd | Other services | 2007 |
| SAB Watches Limited | Wholesale & retail | 2022 |
| Sabaho Ltd | Hospitality | 2022 |
| Sabjab Property Management Limited | Real estate | 2020 |
| Sackie Day Care Limited | Health & social care | 2014 |
| Safc Biosciences Limited | Manufacturing | 1996 |
| Safc Hitech Limited | Wholesale & retail | 1982 |
| Safe Habitation Private Ltd | Health & social care | 2021 |
| Safe Habitation Properties Private Ltd | Hospitality | 2025 |
| Safe Routers Limited | Education | 2008 |
| Safefar Ltd | Professional & scientific | 2024 |
| Safekill Pest Control Limited | Other services | 2011 |