| Roofmaster (Rochdale) Limited | Construction | 2002 |
| Roofs of Esher Limited | Construction | 2014 |
| Roofwindowpro Limited | Wholesale & retail | 2013 |
| Room 14 Menswear Ltd | Wholesale & retail | 2022 |
| Rooms 2 LET Northwest Ltd | Real estate | 2022 |
| Rooms 4U Ltd | Real estate | 2013 |
| Root Music Ltd | Extraterritorial | 2001 |
| Roots Mechanical Limited | Construction | 2011 |
| Rope Access Maintenance UK Ltd | Construction | 2020 |
| Rosa Mollis Limited | Arts & recreation | 2015 |
| Roscoe's DIY Limited | Extraterritorial | 2022 |
| Rose Asset Management Limited | Financial services | 2018 |
| Rose Healthcare Services Ltd Ltd | Health & social care | 2018 |
| Rose Hospitality Services Ltd | Hospitality | 2021 |
| Rose Properties Manchester Limited | Real estate | 2024 |
| Rose System Scaffolding Limited | Construction | 2017 |
| Rose-Charis Services Ltd | Health & social care | 2026 |
| Rosellaandus Ltd | Financial services | 2018 |
| Roseman Estates | Financial services | 2017 |
| Rosemary Indian Restaurant Limited | Hospitality | 2018 |
| Rosh Solutions Ltd | Real estate | 2024 |
| Roshan Builder Ltd | Financial services | 2024 |
| Roshan's Food Ltd | Hospitality | 2026 |
| Rosna Ltd | Health & social care | 2017 |
| Ross Clifford & Associates Limited | Administrative & support | 2016 |
| Rossi Tyres & Service Limited | Wholesale & retail | 2025 |
| Rosso Marketing Ltd | Information & communication | 2019 |
| Rotalec Ltd | Wholesale & retail | 2018 |
| Rothwell Investment Portfolio Ltd | Real estate | 2016 |
| Roton Compressor Services Limited | Manufacturing | 1978 |
| Rotor Design Solutions Limited | Information & communication | 2013 |
| Roundabout MOT and Tyres Ltd | Wholesale & retail | 2026 |
| Roundrobinclassics Ltd | Wholesale & retail | 2025 |
| Roundthorn Properties Limited | Real estate | 2007 |
| Rourke Properties Ltd | Real estate | 2025 |
| Route 62 Networks Limited | Information & communication | 2008 |
| Route 66 Eats Limited | Wholesale & retail | 2025 |
| Route 66 Europe Ltd | Wholesale & retail | 2014 |
| Route 66UK Ltd | Wholesale & retail | 2020 |
| Route Rider Ltd | Transport & logistics | 2025 |
| Routes Global Ltd | Wholesale & retail | 2025 |
| Rowan Ashworth & Sons (Holdings) Ltd | Financial services | 2019 |
| Rowan Ashworth Limited | Construction | 2001 |
| Rowe & Jukes 2 Ltd | Real estate | 2024 |
| Rowe & Jukes Ltd | Real estate | 2023 |
| Rowe 1 Holdings Ltd | Real estate | 2024 |
| Rowe Jukes & Carayol Ltd | Real estate | 2024 |
| Rowe Jukes & Davies Ltd | Real estate | 2025 |
| Rowe Jukes & Downes Ltd | Real estate | 2023 |
| Rowe Jukes & Huws Ltd | Real estate | 2023 |
| Rowe Jukes & Moore Ltd | Real estate | 2025 |
| Rowe Jukes & Ward Ltd | Real estate | 2024 |
| Rowson Developments Limited | Construction | 2020 |
| Roxhsana Ltd | Health & social care | 2020 |
| ROY Carey Bespoke Ltd | Construction | 2017 |
| Royale MCR Catering Ltd | Hospitality | 2026 |
| Royale Motors Limited | Administrative & support | 1952 |
| Royle Security Limited | Extraterritorial | 2021 |
| Roylemac 10 Ltd | Financial services | 2014 |
| Roymoham Events Limited | Hospitality | 2025 |
| Royton Bespoke Interiors Limited | Manufacturing | 2025 |
| Royton Brickwork Solutions Ltd | Construction | 2007 |
| Royton Builders & Contractors Limited | Construction | 2017 |
| Royton Car & Commercial Ltd | Wholesale & retail | 2020 |
| Royton Car & Van Breakers Ltd | Wholesale & retail | 2019 |
| Royton Car Services Limited | Wholesale & retail | 2009 |
| Royton Civil & Structural Limited | Construction | 2020 |
| Royton Convenience Ltd | Wholesale & retail | 2021 |
| Royton Delicatessen Limited | Wholesale & retail | 2002 |
| Royton Executive Ltd | Transport & logistics | 2020 |
| Royton Foodhub Tokies Ltd | Hospitality | 2025 |
| Royton Hand Carwash Limited | Administrative & support | 2022 |
| Royton Korner Shop Ltd | Wholesale & retail | 2026 |
| Royton Mill TAP Ltd | Hospitality | 2025 |
| Royton Minibuses Limited | Transport & logistics | 2006 |
| Royton News and Card Centre Ltd | Transport & logistics | 2013 |
| Royton Precision Engineering Limited | Manufacturing | 2009 |
| ROZ Everyday Ltd | Wholesale & retail | 2023 |
| Rozgul Ltd | Wholesale & retail | 2020 |
| RP Holding Group UK Ltd | Real estate | 2023 |
| RP Locums 20 Ltd | Health & social care | 2020 |
| RP Trading Group UK Ltd | Manufacturing | 2023 |
| RPB Legal Consultants Limited | Professional & scientific | 2019 |
| Rpg-Basic Limited | Health & social care | 2013 |
| RPK Community Ltd | Wholesale & retail | 2022 |
| RPR Medics Ltd | Health & social care | 2021 |
| RPR Redline Performance Remaps Ltd | Wholesale & retail | 2026 |
| RPT Ecommerce Ltd | Wholesale & retail | 2025 |
| RQ Property Management Ltd | Other services | 2020 |
| RQ Ventures Ltd | Financial services | 2024 |
| RR Chadderton Limited | Hospitality | 2024 |
| RR Smart Repairs Ltd | Wholesale & retail | 2026 |
| Rrja Holdings Limited | Professional & scientific | 2011 |
| RRP Builders Ltd | Construction | 2026 |
| RRT ENT Ltd | Information & communication | 2020 |
| RS Furniture Ltd | Wholesale & retail | 2017 |
| RS Medical Solution Ltd | Health & social care | 2025 |
| RS Plates Ltd | Manufacturing | 2022 |
| RS Ventilation Ltd | Construction | 2018 |
| RS1 Traders Ltd | Wholesale & retail | 2025 |