| QD Advisory Ltd | Information & communication | 2022 |
| QM Business Consultancy Ltd | Professional & scientific | 2015 |
| QT Properties NE Ltd | Administrative & support | 2017 |
| Quantium Technology Ltd | Information & communication | 2023 |
| Quantum International Limited | Professional & scientific | 2019 |
| Quantum Performance Group Limited | Arts & recreation | 2025 |
| R & M Chalcraft Scaffolding Ltd | Construction | 2022 |
| R a Lawrence Consulting Limited | Administrative & support | 2016 |
| R F H Limited | Other services | 2010 |
| R J Kidd Builders Limited | Construction | 2010 |
| R T Mechanics Limited | Wholesale & retail | 2005 |
| R T Properties (Haslemere) Limited | Real estate | 2021 |
| R. & V. Heating Limited | Professional & scientific | 1975 |
| R2 Tech Ltd | Information & communication | 2023 |
| Radiance Tanning Lounge Limited | Other services | 2025 |
| Rapha Ltd | Hospitality | 2022 |
| RAW Impact Limited | Professional & scientific | 2006 |
| RAY Sadri Associates Ltd | Professional & scientific | 2018 |
| RB Building Consultancy Limited | Professional & scientific | 2020 |
| RCJ Investment Properties Limited | Real estate | 2021 |
| Reading Chest Limited | Administrative & support | 2008 |
| Recreational Football Ltd | Arts & recreation | 2020 |
| Red Court Estate Ltd | Real estate | 2025 |
| Red FOX Commercials Limited | Real estate | 2021 |
| Red FOX Distributors Limited | Wholesale & retail | 2007 |
| Red FOX Group Holdings Limited | Extraterritorial | 2025 |
| Red Rock Property Services Ltd | Construction | 2007 |
| Redmandarin Limited | Professional & scientific | 1993 |
| Reflect Play Therapy Ltd | Health & social care | 2018 |
| Reframing Primary Care Ltd | Administrative & support | 2026 |
| REG Fowler (Business Services) Ltd | Professional & scientific | 2021 |
| Reimagine HR Limited | Other services | 2018 |
| Relevant Ventures Ltd | Real estate | 2016 |
| Reliable Works Ltd | Construction | 2024 |
| Renasci Films Ltd | Information & communication | 2023 |
| Rendle Moore Limited | Professional & scientific | 2018 |
| Renniks Investment Company Limited | Real estate | 1959 |
| Reoc Communications Limited | Professional & scientific | 2006 |
| Reportgenius Limited | Professional & scientific | 1995 |
| Restalls & SON Limited | Construction | 2015 |
| Restartphysio Ltd | Health & social care | 2023 |
| Retrofield Ltd | Information & communication | 2026 |
| Revel Accountants Ltd | Professional & scientific | 2016 |
| Revival Motorworks Ltd | Wholesale & retail | 2025 |
| RF Building Solutions Ltd | Construction | 2019 |
| RG Groundworks Ltd | Construction | 2026 |
| RGK Property Ltd | Real estate | 2021 |
| Rgzk Limited | Other services | 2022 |
| Rhosting Limited | Information & communication | 2015 |
| Richard Tauwhare Consulting Limited | Professional & scientific | 2019 |
| Rivazure Enterprises Limited | Construction | 2016 |
| River Coaching and Consulting Limited | Administrative & support | 2017 |
| River House Investments Limited | Real estate | 1999 |
| Rivierabike LLP | | 2012 |
| RK Niwas Ltd | Wholesale & retail | 2019 |
| RLS Composites Ltd | Manufacturing | 2024 |
| Robin Clifton Limited | Construction | 2015 |
| Rock a Fella Barbershop Ltd | Other services | 2017 |
| Rocket 88 Ltd | Education | 2013 |
| Rockflow Resources Limited | Professional & scientific | 2011 |
| Rogan Ltd | Professional & scientific | 2024 |
| Roroto Limited | Construction | 2002 |
| Rosefinch Properties Limited | Construction | 2023 |
| Rosemary JO Ltd | Professional & scientific | 2018 |
| Rothermead Limited | Wholesale & retail | 2017 |
| Rubicon Capital Limited | Financial services | 2015 |
| Rubini Estate Ltd | Real estate | 2023 |
| Russet & Space Ltd | Construction | 2025 |
| Rutherford Glen Limited | Professional & scientific | 2004 |
| Rvsk Developments Ltd | Real estate | 2020 |
| S D Hughes Consulting Limited | Professional & scientific | 2014 |
| S D L Promotions Limited | Extraterritorial | 2000 |
| S E Mansfield Electrical Services Ltd. | Construction | 2012 |
| S H Developments NE Limited | Construction | 2021 |
| S Hudson UK Ltd | Construction | 2021 |
| S I E T Limited | Health & social care | 1997 |
| S J Jisa Limited | Information & communication | 2017 |
| S J Smith Lettings Ltd | Real estate | 2017 |
| S T Engineering Limited | Wholesale & retail | 2007 |
| Saddleport Limited | Households | 1988 |
| Safeguarding UK App Limited | Information & communication | 2026 |
| Sagatronic Ltd | Wholesale & retail | 2025 |
| Sage Femme Scar Therapy Limited | Health & social care | 2025 |
| Sail Through Change Limited | Administrative & support | 2023 |
| Salty Dog Game Fishing Limited | Agriculture & fishing | 2010 |
| Samiva Technologies Ltd | Information & communication | 2018 |
| Sanctuary Elements Limited | Hospitality | 2021 |
| Sanctuary Homes Ltd | Real estate | 2026 |
| Sandhurst Hill Properties Limited | Professional & scientific | 1963 |
| Sandrod Limited | Construction | 2001 |
| Sarah Claridge Communications Ltd | Professional & scientific | 2019 |
| Saratoga 55 Food & Catering Limited | Hospitality | 2019 |
| Sastrugi Resilience Ltd | Information & communication | 2025 |
| Schengen Wealth Ltd | Professional & scientific | 2023 |
| Scone Polo Limited | Agriculture & fishing | 2019 |
| Scotia Nest Ltd | Hospitality | 2021 |
| Sdfc Limited | Health & social care | 2010 |
| Sea Trout Holdings Limited | Water & waste | 2014 |
| Sean Ashby Associates Limited | Wholesale & retail | 2020 |
| Security Strategy and Solutions Limited | Administrative & support | 2013 |