| R Durtnell & Sons (Holdings) Limited | Construction | 2002 |
| R Kamandulis Limited | Construction | 2007 |
| R Oirschot Limited | Financial services | 2010 |
| R Russ Limited | Transport & logistics | 2011 |
| R.D.C Models Limited | Arts & recreation | 2021 |
| R.S.H. Ltd | Professional & scientific | 2007 |
| Race Software Limited | Professional & scientific | 2001 |
| Rachel James Ltd | Manufacturing | 2014 |
| Rachel Lennon Ltd | Information & communication | 2024 |
| Radium Properties Limited | Real estate | 2013 |
| Raes Energy Ltd | Mining & quarrying | 2020 |
| RAG & Byrne Limited | Manufacturing | 2018 |
| Rainbow Estate Agents Ltd | Real estate | 2025 |
| Rank Mate Ltd | Professional & scientific | 2026 |
| Raptor Competitions Ltd | Wholesale & retail | 2024 |
| Rascals Golf Co Ltd | Manufacturing | 2024 |
| Rawlins Carpet & Flooring Services Limited | Construction | 2012 |
| RAY Jones Roofing and Building Services Ltd | Construction | 2025 |
| Raystell Ltd | Construction | 2021 |
| Raytel Investments Limited | Real estate | 1996 |
| RB Roofing and Beyond Ltd | Construction | 2025 |
| RBK Design Ltd | Professional & scientific | 2016 |
| RCH Properties Limited | Real estate | 1998 |
| RE Invest BH Limited | Real estate | 2021 |
| Re-Clectic Limited | Other services | 2025 |
| React Limited | Arts & recreation | 2003 |
| Read Property Investment Ltd | Real estate | 2024 |
| Ready for the Gate C.I.C. | Administrative & support | 2024 |
| Rebellion Army Ltd | Information & communication | 2018 |
| Red Monkey Films Ltd | Information & communication | 2016 |
| Red Watch Fire Safety Ltd | Public administration | 2021 |
| Reddera Ltd | Information & communication | 2025 |
| Redwood Living Ltd | Real estate | 2023 |
| Reelworks Creative Ltd | Information & communication | 2025 |
| Regents Bay Investments Ltd | Real estate | 2014 |
| Regional Commercial Services Limited | Professional & scientific | 2009 |
| Reigis & Sons Limited | Extraterritorial | 2010 |
| Reiki Events Ltd | Arts & recreation | 2023 |
| Reliacool AC Ltd | Construction | 2018 |
| Relocate I.T. Limited | Transport & logistics | 2000 |
| Rendezvous Brasserie Ltd | Hospitality | 2012 |
| Renova Projects UK Ltd | Construction | 2024 |
| Resinroom Dog Limited | Professional & scientific | 2017 |
| Resite Services Ltd | Professional & scientific | 2008 |
| Response Locksmiths Limited | Other services | 2008 |
| Revivify London Limited | Health & social care | 2015 |
| REX Gadgets Ltd | Wholesale & retail | 2024 |
| Reynolds Mower & Garden Care Limited | Administrative & support | 2015 |
| Reynolds Removals Ltd | Transport & logistics | 2018 |
| Reyvis Property Services Limited | Construction | 2016 |
| RFC Flooring Ltd | Construction | 2006 |
| RH & Co. IT Services Limited | Information & communication | 2012 |
| Rhoades Recycling Ltd | Water & waste | 2020 |
| Rice Estates Ltd | Professional & scientific | 2011 |
| Ridley Design Ltd | Professional & scientific | 2025 |
| RJS Electrics Ltd | Construction | 2024 |
| RKV Retail Ltd | Wholesale & retail | 2022 |
| Rocco Electrics Limited | Construction | 2014 |
| Rock Star Productions Limited | Information & communication | 2003 |
| Rockhampton RD Ltd | Real estate | 2025 |
| Rodel Sound Limited | Administrative & support | 2010 |
| Rodfern Limited | Hospitality | 2011 |
| Roke Road (Kenley) Management Company Limited | Households | 2023 |
| Roofgen Ltd | Construction | 2025 |
| Roosters Rotherhithe Boxing Club C.I.C. | Education | 2019 |
| Rose Engineering and Restoration Ltd | Wholesale & retail | 2022 |
| Rosemount Properties West Byfleet Limited | Real estate | 2009 |
| Rothbury Construction Limited | Administrative & support | 2016 |
| RRT Electrical Ltd | Construction | 2025 |
| Rtms Limited | Administrative & support | 2001 |
| RTS Property Investments Ltd | Real estate | 2006 |
| Rubelex Ltd | Real estate | 2020 |
| Rudi Van Limited | Construction | 2024 |
| Russ Holdings Limited | Financial services | 2021 |
| Russell Court Properties Limited(The) | Real estate | 1953 |
| Rutland Solutions Ltd | Construction | 2021 |
| Ryco Services Ltd | Construction | 2023 |
| S & a Properties (IOW) Limited | Construction | 2023 |
| S & a Shoe Repairs Limited | Other services | 2019 |
| S & K Construction Limited | Construction | 2000 |
| S C Electrics (Essex) Ltd | Construction | 2004 |
| S Honey Electrical Ltd | Construction | 2019 |
| S J Hobbs & Co (UK) Ltd. | Construction | 2018 |
| S Lewis Limited | Professional & scientific | 2011 |
| S W Automotive Solutions Ltd | Wholesale & retail | 2019 |
| S W Tiling Limited | Construction | 2011 |
| S Webster Services Ltd | Construction | 2017 |
| S&O Builders Ltd | Construction | 2023 |
| S. B. Resources Limited | Financial services | 2002 |
| S. Upton Roofing Limited | Construction | 2011 |
| S/K Recruitment Ltd | Administrative & support | 2022 |
| S1LONDON Ltd | Construction | 2018 |
| Sage and Hare Ltd | Wholesale & retail | 2023 |
| Sagewood Consulting Ltd | Professional & scientific | 2021 |
| Salisbury's (Whyteleafe) Ltd | Real estate | 2022 |
| Salisbury`S Fish & Chips Limited | Hospitality | 2006 |
| Salron Limited | Hospitality | 2011 |
| Samrai & SON Ltd | Manufacturing | 2010 |
| Sanderstead Park Nursery Limited | Health & social care | 2016 |
| Sandrock House Etchingham Freehold Limited | Households | 2022 |