| RKC Special Projects Roofing & Cladding Ltd | Construction | 2021 |
| RKR Oncology Ltd | Health & social care | 2023 |
| RKV Consultancy Ltd | Wholesale & retail | 2022 |
| RL & NJ Limited | Hospitality | 2018 |
| RLT GEO Consultants Ltd | Professional & scientific | 2020 |
| RM Engineering Services Limited | Construction | 2015 |
| Rmap Properties Ltd | Real estate | 2018 |
| RMJ Property Consultants Ltd | Professional & scientific | 2014 |
| RMJ Skye Ltd | Professional & scientific | 2020 |
| RMK Marketing Ltd | Professional & scientific | 2025 |
| RMM Tech Ltd | Information & communication | 2018 |
| RMP Medical Services Limited | Health & social care | 2025 |
| Road Management Systems Limited | Construction | 1993 |
| Road Rage Performance Limited | Wholesale & retail | 2016 |
| Roasted PIG Ltd | Health & social care | 2019 |
| ROB Wilson Editor Ltd | Information & communication | 2020 |
| Robert Alexander Electrical Ltd | Construction | 2020 |
| Robert Campbell Decorating Services Limited | Construction | 2016 |
| Robert Draper Limited | Transport & logistics | 2001 |
| Robert Thomas Associates Limited | Construction | 2007 |
| Robert Tovey Limited | Construction | 1971 |
| Robins Property Investments Ltd | Real estate | 2021 |
| Robinson & Sons Group Ltd | Real estate | 2026 |
| Rocco's Snacks Bar Limited | Hospitality | 2018 |
| Roche Companies Ltd | Professional & scientific | 2019 |
| Rochefort International Limited | Financial services | 2020 |
| Rock Renovations Group Ltd | Construction | 2024 |
| Rock Rush Aggregates Ltd | Construction | 2021 |
| Rockai Ltd | Information & communication | 2025 |
| Rocket Tech Ltd | Information & communication | 2023 |
| Rocketship Associates Limited | Administrative & support | 2000 |
| Rockfelt Ltd | Construction | 2025 |
| Rodeca Limited | Manufacturing | 2004 |
| Roger Steare Consulting Limited | Professional & scientific | 1999 |
| Roger Steare Limited | Professional & scientific | 2025 |
| Rogers Electrical Services Limited | Administrative & support | 1999 |
| Rokita Limited | Hospitality | 2019 |
| Rokko Services Ltd | Extraterritorial | 2024 |
| Romabarber Ltd | Other services | 2026 |
| Ronaldo Bestcare Limited | Health & social care | 2025 |
| Rooftop Specialists Ltd | Construction | 2025 |
| Rooster Charters Ltd | Transport & logistics | 2026 |
| Rooted Arboricultural Consultancy Ltd | Professional & scientific | 2020 |
| Rooted Beginnings Ltd | Health & social care | 2024 |
| Rooted Coffee Ltd | Hospitality | 2025 |
| Roots Training Services Ltd | Education | 2025 |
| Rope Access Roofing Ltd | Construction | 2024 |
| Rosa & Blue Ltd | Wholesale & retail | 2021 |
| Roselands Pre-School Highamwood Ltd | Education | 2009 |
| Rosemary Place Management Company Limited | Households | 2005 |
| Rosindale Pavitt Limited | Real estate | 2020 |
| Rosslyn Healthcare Associates Ltd | Professional & scientific | 2025 |
| Roughway Converters Limited | Manufacturing | 1998 |
| Roundfare Limited | Arts & recreation | 1984 |
| Rowan Flooring Limited | Construction | 2022 |
| Rowayat Limited | Information & communication | 2013 |
| Rowe Electrical (Tonbridge) Limited | Construction | 2007 |
| Royal Tunbridge Wells Skin Clinic Ltd | Health & social care | 2006 |
| Royston Capital Ltd | Financial services | 2025 |
| Royston Commercial Ltd | Real estate | 2025 |
| Royston Lettings Ltd | Real estate | 2025 |
| Royston Residential Ltd | Construction | 2023 |
| RP & CJ Investments Limited | Real estate | 2018 |
| RPC Employee Trustee Limited | Professional & scientific | 2015 |
| RPC Land & New Homes Limited | Real estate | 1999 |
| RPC Lift Refurbishment Limited | Construction | 2018 |
| RPM Diagnostics Limited | Health & social care | 2023 |
| RSK Property Holdings Ltd | Professional & scientific | 2016 |
| RT Factory Limited | Professional & scientific | 2017 |
| RTC Networking Limited | Information & communication | 1997 |
| RTG Anaesthesia Limited | Health & social care | 2019 |
| RTW Construction Ltd | Construction | 2013 |
| RTW Pool & Spa Ltd | Construction | 2020 |
| Ruach Property Ltd | Real estate | 2017 |
| Rubus Information Services Ltd | Administrative & support | 2012 |
| Rubus RMI Limited | Administrative & support | 2008 |
| Ruby and JO Limited | Wholesale & retail | 2022 |
| Ruckley Healthcare Limited | Public administration | 2024 |
| Rudo Madada-Nyakauru Plastic Surgery Limited | Health & social care | 2024 |
| Ruggier Limited | Health & social care | 2021 |
| Run Digital Limited | Professional & scientific | 2012 |
| Run Optimised Ltd | Information & communication | 2013 |
| Rung Roch Limited | Hospitality | 2022 |
| Runner Cars Paddock Wood Ltd | Transport & logistics | 2023 |
| Runrite Events Limited | Arts & recreation | 2016 |
| Runway Training Community Interest Company | Education | 2021 |
| Rupert Elliott Consulting LLP | | 2011 |
| Rupford Consulting Limited | Real estate | 2010 |
| Rupford Holdings Limited | Real estate | 2010 |
| Rural Parks Ltd | Hospitality | 2024 |
| Ruslara Limited | Professional & scientific | 2011 |
| Russell Burcombe Oncology Limited | Health & social care | 2017 |
| Russell Davies Investments Limited | Real estate | 2015 |
| Russell Perry Visual Studio Limited | Other services | 2023 |
| Russell V Smith Limited | Administrative & support | 2007 |
| Rustic Retreats (Kent) Ltd | Hospitality | 2024 |
| RW Scaffold Limited | Construction | 2018 |
| RW31MEDIA Ltd | Information & communication | 2021 |
| RWP Services (Kent) Ltd | Construction | 2018 |
| Ryan Murphy Ltd | Professional & scientific | 2024 |