| Rigby Properties Limited | Real estate | 2019 |
| Rigby's Insulation Specialists Ltd | Construction | 2019 |
| Right Building Solutions Ltd | Construction | 2019 |
| Right Foot Limited | Information & communication | 2009 |
| Rileys Holidays Ltd | Hospitality | 2017 |
| Rimmington Homes Ltd | Real estate | 2023 |
| Riordan Limited | Administrative & support | 2013 |
| Rios Normoss Ltd | Hospitality | 2025 |
| Riptech RC Limited | Manufacturing | 2023 |
| Rise Projects Limited | Information & communication | 2013 |
| Rishi's Mart Ltd | Wholesale & retail | 2024 |
| Risk Mitigation Group Limited | Administrative & support | 2016 |
| Risque Agence Limited | Arts & recreation | 2022 |
| Rival Mechanical Access Solutions Ltd | Construction | 2014 |
| River Mint Holdings Limited | Professional & scientific | 2015 |
| Riverdale Court (Kendal) Limited | Households | 2000 |
| Riverdale Rural Services Ltd | Agriculture & fishing | 2019 |
| Rivermead Electrical Ltd | Construction | 2018 |
| Rivers Vale Blackpool Limited | Hospitality | 2025 |
| Riversdale Lodge Limited | Households | 1983 |
| Riverside Car Servicing Limited | Wholesale & retail | 2016 |
| Rizq Consultancy Services Limited | Information & communication | 2019 |
| Rizq International Ltd | Hospitality | 2026 |
| Rizvi Group UK Ltd | Wholesale & retail | 2025 |
| RJB Legal and Commercial Services Ltd | Information & communication | 2014 |
| RJG Trading Limited | Wholesale & retail | 2010 |
| RJM Assest Management Ltd | Real estate | 2025 |
| RJP Contracts Ltd | Construction | 2024 |
| RJS Consultancy Services Ltd | Education | 2024 |
| RJS Quantitative Consultants Ltd | Information & communication | 2018 |
| RJW Properties and Lettings Limited | Real estate | 2020 |
| RKB (Private) Limited | Other services | 2017 |
| Rkms Group Ltd | Real estate | 2020 |
| RL3 Ltd | Construction | 2021 |
| RM Commercials Limited | Wholesale & retail | 2026 |
| RMA Windowfilms Limited | Manufacturing | 2023 |
| Rmisonz Limited | Real estate | 2023 |
| RMJ Robey Groundcare Limited | Administrative & support | 2009 |
| Rmja Consultant Limited | Information & communication | 2017 |
| RMP Technical Services Ltd | Information & communication | 2022 |
| RNH Nuclear Ltd | Professional & scientific | 2023 |
| RNS Publications Ltd | Extraterritorial | 2012 |
| RNW Management Ltd | Professional & scientific | 2023 |
| Roarsome Roleplay Ltd | Arts & recreation | 2020 |
| ROB LEA Music Ltd | Wholesale & retail | 2023 |
| Robert Barrow Limited | Other services | 2018 |
| Robert Mccoll Agencies Ltd | Wholesale & retail | 2018 |
| Robert Palmer Joinery Ltd | Construction | 2015 |
| Robev Engineering Limited | Professional & scientific | 2007 |
| Robin's Friends Limited | Wholesale & retail | 2012 |
| Robinson & Hardings Corporate Lets Limited | Real estate | 2019 |
| Robinson & Hardings Investments Limited | Real estate | 2019 |
| Robinsons Holiday Lets Limited | Real estate | 2025 |
| Roblec Power Solutions Limited | Administrative & support | 2010 |
| Robore Holdings Limited | Professional & scientific | 2003 |
| Robust Logistics Ltd | Transport & logistics | 2012 |
| Rocchetta Ltd | Hospitality | 2017 |
| Rochecim Holdings (NO. 2) Limited | Financial services | 2021 |
| Rochester NY Ltd | Wholesale & retail | 2025 |
| Rock City Superstore Limited | Manufacturing | 2006 |
| Rock Hard Live Ltd | Extraterritorial | 2007 |
| Rock Hard Music Group Ltd | Arts & recreation | 2007 |
| Rock Hard Studios Ltd | Arts & recreation | 2007 |
| Rockbourn Ltd | Professional & scientific | 2013 |
| Rockc&Co Ltd | Wholesale & retail | 2022 |
| Rocket 180 Limited | Transport & logistics | 2014 |
| Rocket Fundraising Limited | Administrative & support | 2020 |
| Rocket Network Solutions Ltd | Information & communication | 2024 |
| Rocket Originals Ltd | Wholesale & retail | 2025 |
| Roddy Enterprise Limited | Information & communication | 2007 |
| Rodich Shipping Co Limited | Extraterritorial | 2019 |
| Rogar Limited | Wholesale & retail | 2025 |
| Roger Aderogba Ltd | Information & communication | 2018 |
| Rojo Homes Limited | Households | 2021 |
| Rokiben Limited | Information & communication | 2011 |
| Roland Robinsons and Fentons LLP | | 2010 |
| Roll Spring Unbreakable Mattress Limited | | 1932 |
| Rolled UP Taste of Poland Ltd | Hospitality | 2024 |
| Roller Coast Ltd | Administrative & support | 2017 |
| Rollercoaster Building Company Ltd | Construction | 2025 |
| Rolls Luxen Limited | Extraterritorial | 1977 |
| Romaheath Limited | Agriculture & fishing | 1993 |
| Roman Physiques Ltd | Arts & recreation | 2015 |
| Romero Blackpool Ltd | Hospitality | 2019 |
| Romney Grange Management Company Limited | Households | 1988 |
| RON Richardson Construction Limited | Construction | 2014 |
| RON Richardson Limited | Construction | 2014 |
| Ronald Michael William Grundy Ltd | Extraterritorial | 2024 |
| Rondell Ltd | Construction | 2022 |
| Rongjinguo Limited | Professional & scientific | 2013 |
| RONT3L Ltd | Information & communication | 2022 |
| Rontel Communications Limited | Information & communication | 2016 |
| Roofing Blackpool Limited | Construction | 2024 |
| Room in a Roof Insulation Ltd | Construction | 2018 |
| Room Interiors NW Limited | Administrative & support | 2023 |
| Rooms Inn Blackpool Ltd | Hospitality | 2018 |
| Roomz Group Limited | Hospitality | 2023 |
| Roost Home and Lifestyle Ltd | Wholesale & retail | 2021 |
| Root 58 Ltd | Wholesale & retail | 2022 |
| Rope Access Group Limited | Construction | 2018 |