| Rsgd (Cheltenham) Limited | Hospitality | 2019 |
| Rsgd (Clydebank) Limited | Hospitality | 2025 |
| Rsgd (Glasgow) Limited | Hospitality | 2019 |
| Rsgd (Hull) Ltd | Hospitality | 2020 |
| Rsgd (Lancaster) Limited | Hospitality | 2020 |
| Rsgd (Leeds Cardigans) Limited | Hospitality | 2022 |
| Rsgd (Leicester) Limited | Hospitality | 2019 |
| Rsgd (Meadowhall) Limited | Hospitality | 2020 |
| Rsgd (Metrocentre) Limited | Hospitality | 2022 |
| Rsgd (Newcastle) Limited | Hospitality | 2019 |
| Rsgd (Rotherham) Limited | Hospitality | 2021 |
| Rsgd (Sheff) Limited | Hospitality | 2020 |
| Rsgd (Stirling) Ltd | Hospitality | 2024 |
| Rsgd (Stockport) Limited | Hospitality | 2020 |
| Rsgd (White Rose) Ltd | Hospitality | 2023 |
| Rsgd Holdings 1 Ltd | Financial services | 2022 |
| Rsgd Holdings 2 Ltd | Financial services | 2022 |
| Rsgd Holdings 3 Ltd | Financial services | 2022 |
| Rsgd Holdings Limited | Hospitality | 2019 |
| RSH Audio Limited | Administrative & support | 2010 |
| RSI Private Limited | Manufacturing | 2019 |
| RSM Facilities Management Ltd | Administrative & support | 2025 |
| RSM Topjobs Ltd | Administrative & support | 2011 |
| RSP Plastering Limited | Other services | 2018 |
| RT Cloud Solutions Limited | Information & communication | 2021 |
| RTB Consultancy Limited | Professional & scientific | 2024 |
| Rtrm Fitness Ltd | Arts & recreation | 2020 |
| Rtrm Properties Ltd | Real estate | 2023 |
| RTS Flooring Ltd | Construction | 2021 |
| Rubber Ferrules Ltd | Wholesale & retail | 2015 |
| Rubelles Limited | Information & communication | 2019 |
| Ruby Asset Management Ltd | Real estate | 2024 |
| Ruby Tuesday Ltd | Wholesale & retail | 2021 |
| Rudra Infotech Ltd | Information & communication | 2021 |
| Ruhas Tech Ltd | Wholesale & retail | 2025 |
| Rumjaun Legacy Holdings Limited | Real estate | 2025 |
| Rupnogor Ltd | Hospitality | 2019 |
| Ruscom Express Ltd | Administrative & support | 2019 |
| Rushmoor Mechanical Services Limited | Construction | 1977 |
| Rushmore Electrical Limited | Construction | 2022 |
| Rushxo Ltd | Administrative & support | 2025 |
| Russ & Capital Construction Ltd | Construction | 2019 |
| Russell Richardson & Sons Limited | Water & waste | 1978 |
| Russell Smith Properties Ltd | Real estate | 2024 |
| Rustys Building and Garden Services Ltd | Administrative & support | 2018 |
| Rusvelt Ltd | Construction | 2019 |
| Ruvca Investments Ltd | Real estate | 2019 |
| Ruvca Limited | Information & communication | 2011 |
| Ruxley Financial Services Limited | Financial services | 2002 |
| Rvsh Developers Limited | Real estate | 2021 |
| Rvsh Properties Limited | Real estate | 2026 |
| RWD Agency Ltd | Other services | 2008 |
| Ryas Consultancy Services Limited | Information & communication | 2020 |
| Rybs-S.M.E Ltd | Information & communication | 2007 |
| Rytech Services Limited | Construction | 2007 |
| Rytrack Training Ltd | Information & communication | 2025 |
| RZH and Co Limited | Real estate | 2022 |
| Réver Desserts Ltd | Wholesale & retail | 2026 |
| S & a Bespoke Ltd | Construction | 2025 |
| S & I Lesuire Ltd | Hospitality | 2025 |
| S & J Material Handlers Ltd | Wholesale & retail | 2020 |
| S & J Vehicle Engineers Limited | Wholesale & retail | 2017 |
| S & K Elite Management Ltd | Professional & scientific | 2020 |
| S & L Technical Services Limited | Information & communication | 2011 |
| S & L Traders Limited | Wholesale & retail | 2010 |
| S & R Surveyors Limited | Professional & scientific | 2009 |
| S & S Hair Studio Ltd | Other services | 2016 |
| S & T Commercial Services Ltd | Professional & scientific | 2024 |
| S & T Compliance Ltd | Professional & scientific | 2023 |
| S B Property Management Company Limited | Professional & scientific | 1994 |
| S Copley Construction Limited | Construction | 2021 |
| S N I Motorsport Ltd | Wholesale & retail | 2024 |
| S R N Dartford Ltd | Hospitality | 2019 |
| S T Alam Ltd | Real estate | 2022 |
| S Z Ahmad Limited | Real estate | 2024 |
| S&A Best Rentals Ltd | Real estate | 2026 |
| S&B Pathway Ltd | Other services | 2020 |
| S&H Rogers Solutions Ltd | Construction | 2022 |
| S&K Elite Envelopes (STH) Ltd | Administrative & support | 2016 |
| S&L Sale Ltd | Wholesale & retail | 2024 |
| S&R Retail Ltd | Wholesale & retail | 2024 |
| S&V Bond Accountants Ltd | Professional & scientific | 2023 |
| S.A. Blinds Limited | Wholesale & retail | 1981 |
| S.Archer Bar Services Ltd | Professional & scientific | 2023 |
| S.J.C. Transport Services Ltd | Transport & logistics | 1998 |
| S.L.E Property Investments Ltd | Real estate | 2020 |
| S.Quinn Consultancy Ltd | Professional & scientific | 2018 |
| S3G Synergy Limited | Wholesale & retail | 2024 |
| S3M Ltd | Real estate | 2017 |
| S3M Technology PVT Limited | Information & communication | 2018 |
| S4O Consulting Limited | Professional & scientific | 2024 |
| S4S Technologies Limited | Professional & scientific | 2017 |
| SA Design Services Ltd | Professional & scientific | 2025 |
| Saab Foods Ltd | Hospitality | 2019 |
| Saas Consultancy Limited | Professional & scientific | 2024 |
| Saas Infra Solutions Ltd | Information & communication | 2025 |
| Saasree Healthcare Limited | Health & social care | 2022 |
| Saatb Entertainment Promotion & Communication Limited | Information & communication | 2026 |
| SAB13 Logistics Ltd | Transport & logistics | 2025 |
| Sabaru (Chauffeur) Ltd | Administrative & support | 2020 |