| Richard Borkum Ltd | Professional & scientific | 2007 |
| Richard Compton Consulting Ltd | Professional & scientific | 2013 |
| Richard Drury Properties Limited | Real estate | 1948 |
| Richard Matthew Accountancy Ltd | Professional & scientific | 2001 |
| Richard Mitchell Limited | Administrative & support | 2007 |
| Richard Thorpe Construction Limited | Construction | 2011 |
| Richlen Associates Limited | Professional & scientific | 2004 |
| Ridgeline Real Estate Ltd | Real estate | 2025 |
| Ridgeway Court Management Company Ltd | Households | 2021 |
| Ridings (Faygate) Management Limited | Households | 2002 |
| Rikkyo School in England Limited | Education | 2026 |
| Riley & Co Electrical & Carpentry Ltd | Construction | 2022 |
| Ringley Oak (Horsham) Management Company | Households | 1975 |
| Ringway Group Limited | Construction | 2009 |
| Ringway Hounslow Highways Limited | Construction | 2012 |
| Ringway Infrastructure Services Limited | Construction | 1992 |
| Ringway Island Roads Limited | Construction | 2012 |
| Ringway Jacobs Limited | Construction | 2005 |
| Ringwood Rigging Ltd | Professional & scientific | 2026 |
| Ripley Crick Management Limited | Administrative & support | 2024 |
| Risc Consultancy Limited | Information & communication | 1992 |
| Risegreen Motor Company Limited | Wholesale & retail | 2002 |
| Rishan News Limited | Wholesale & retail | 2016 |
| Rishi & Co. Ltd | Administrative & support | 2013 |
| Ritchie Phillips Group Limited | Other services | 2007 |
| Ritchie Phillips LLP | | 2007 |
| Rituk Ltd | Real estate | 2020 |
| River Woodwork Limited | Manufacturing | 2008 |
| Riverbank Management Services Limited | Professional & scientific | 2020 |
| Riverside Motors Ltd | Wholesale & retail | 2002 |
| RJ Locksmith Services Ltd | Other services | 2019 |
| RJB Pools Ltd | Arts & recreation | 2019 |
| RJF Ecommerce Ltd. | Wholesale & retail | 2020 |
| RJL London & Sussex Estates Limited | Real estate | 2026 |
| RJS Power Limited | Construction | 2024 |
| RJT Property Sourcing Limited | Professional & scientific | 2024 |
| Rj’S Barbering Studios Ltd | Other services | 2025 |
| RK Disputes Limited | Professional & scientific | 2020 |
| Rmaraz Ltd | Hospitality | 2020 |
| RML Builders Ltd | Construction | 2024 |
| Rmsound Ltd | Information & communication | 2019 |
| RN24 Limited | Administrative & support | 2019 |
| RND Home Care Limited | Administrative & support | 2026 |
| RNL Properties Limited | Real estate | 2014 |
| RNS Roofing Limited | Construction | 2022 |
| ROA Sales Consulting Ltd | Professional & scientific | 2025 |
| Roadblock Developments Limited | Construction | 2026 |
| Roadblock Publications Limited | Information & communication | 2014 |
| Roadhurst Management Limited | Households | 2010 |
| Roaring Berry Ltd | Administrative & support | 2017 |
| Roasted Catering Limited | Hospitality | 2022 |
| Robert Garea Ltd | Construction | 2019 |
| Robert John Consultancy Limited | Professional & scientific | 2021 |
| Robert's Fine Jewellery Ltd | Wholesale & retail | 2019 |
| Robinson Engineering and Associates Limited | Professional & scientific | 2024 |
| Robinsons Doors and Windows Limited | Construction | 2023 |
| Robinswood Court RTM Company Limited | Households | 2009 |
| Roble Financial Advisers Limited | Information & communication | 2014 |
| Robu Stripout Ltd | Construction | 2025 |
| Roche Real Estate Ltd | Real estate | 2016 |
| Rochester BAX Limited | Professional & scientific | 2022 |
| Rock Paper Scissors (Sussex) Ltd | Other services | 2017 |
| Rock Restoration Limited | Real estate | 2015 |
| Rockabill Marine Design Limited | Administrative & support | 2022 |
| Rocket Industries Ltd | Financial services | 2013 |
| Rocket POD Media Ltd | Information & communication | 2020 |
| Rocket Sports Management Limited | Professional & scientific | 2012 |
| Rockhill Brothers Coffee Limited | Hospitality | 2022 |
| Rockliffe & Partners Consulting Ltd | Professional & scientific | 2018 |
| Rockman Consultancy Services Limited | Financial services | 2012 |
| Roffey Robins FC Limited | Arts & recreation | 2024 |
| Roffey (Caterers) Limited | Hospitality | 2016 |
| Roffey Club Ltd | Arts & recreation | 1966 |
| Roffey Park Institute Limited | Education | 1967 |
| Roffey Park Services Limited | Hospitality | 2004 |
| Rolling Flavours Ltd | Hospitality | 2026 |
| Roma Valeting Service Ltd | Administrative & support | 2025 |
| Roman Property Maintenance Ltd | Real estate | 2022 |
| Romm Global Advisors Ltd | Professional & scientific | 2025 |
| Ronald Wharton (From Rigby's) Riflemaker Ltd | Manufacturing | 2011 |
| Ronald Wharton Riflemaker Ltd | Manufacturing | 2011 |
| Ronata Limited | Professional & scientific | 2011 |
| Ronda Care Ltd | Health & social care | 2021 |
| Ronin ARC Transformation Ltd | Professional & scientific | 2025 |
| Rooftop Software Limited | Professional & scientific | 1998 |
| Rook and Castle Ltd | Construction | 2024 |
| Rookwood Holding Limited | Financial services | 2021 |
| Rookwood Park Owners Association Limited | Households | 1994 |
| Rooney & Co. Estate Agencies Limited | Other services | 1990 |
| Rooster Engineering Services Ltd | Professional & scientific | 2012 |
| Root & Rose Developments Limited | Construction | 2026 |
| Rooted Products Ltd | Wholesale & retail | 2022 |
| Rose and Johnson Property Limited | Real estate | 2024 |
| Rosho Ltd | Real estate | 2019 |
| Rosie Prior Ltd | Professional & scientific | 2022 |
| Rosier Business Park Limited | Real estate | 1962 |
| Ross Champion Motors Ltd | Wholesale & retail | 2010 |
| Rota Geek Limited | Professional & scientific | 2009 |
| Rotech Spindle Services Limited | Manufacturing | 1998 |
| Rough and Ready Wholefoods Ltd | Wholesale & retail | 2021 |