| RPH Infrastructure Limited | Administrative & support | 2013 |
| RPL Holdings Limited | Professional & scientific | 2001 |
| Rplc (UK) Limited | Financial services | 2017 |
| RPM Detailing Ltd | Other services | 2009 |
| RPM Redstone Properties Ltd | Real estate | 2026 |
| RPW Tuition Limited | Administrative & support | 2023 |
| RR Engineering Services Ltd | Professional & scientific | 2025 |
| RR News and OFF Licence Ltd | Wholesale & retail | 2026 |
| RRB Property Ltd | Households | 2024 |
| RRC Building Control Limited | Administrative & support | 2025 |
| RRJ Flooring Solutions Ltd | Construction | 2018 |
| RRR Network Ltd | Information & communication | 2023 |
| RS Entertainment NW Limited | Arts & recreation | 2021 |
| RS Food Warrington Ltd | Hospitality | 2026 |
| RS Health Informatics Consulting Ltd | Administrative & support | 2025 |
| RS Integrated Supply UK Limited | Wholesale & retail | 2001 |
| RS Nuclear Limited | Professional & scientific | 2017 |
| RS Plastering and Rendering Limited | Construction | 2015 |
| RS Quality Services Limited | Professional & scientific | 2018 |
| RS ROM Trans Ltd | Transport & logistics | 2020 |
| RS Woodland Properties Limited | Real estate | 2022 |
| RSA Oak Ltd | Real estate | 2025 |
| RSB Consulting Services Limited | Other services | 2018 |
| Rsilva Solutions Ltd | Information & communication | 2022 |
| Rsjb Properties Ltd | Real estate | 2025 |
| RSL Warrington Limited | Real estate | 2022 |
| RSP Process Engineering Limited | Administrative & support | 2015 |
| RSS Cars (Newton) Limited | Wholesale & retail | 2014 |
| RT Cost Management Limited | Administrative & support | 2008 |
| RT Muir Legal Limited | Professional & scientific | 2014 |
| RTC Property Ltd | Real estate | 2026 |
| Rtcb Management Limited | Professional & scientific | 2017 |
| RTD Developments Ltd | Construction | 2016 |
| RTE Electrical Contractors Limited | Construction | 2008 |
| Rtec Design Limited | Professional & scientific | 2018 |
| Rtsn Consulting Limited | Information & communication | 2018 |
| RTW MEP Services Limited | Administrative & support | 2026 |
| Ruban Properties Limited | Real estate | 2025 |
| Rubax Lifts Limited | Manufacturing | 1980 |
| Rubel Channel Management Ltd | Information & communication | 2025 |
| Rubel Chew Limited | Professional & scientific | 2025 |
| Rubeus Construction Ltd | Construction | 2009 |
| Rubicon Electrical Services Ltd | Construction | 2020 |
| Ruby by OGE Ltd | Manufacturing | 2025 |
| Ruby Clothing Ltd | Wholesale & retail | 2024 |
| Ruby Digital Consultancy Ltd | Information & communication | 2016 |
| Ruby Technology Services Ltd | Information & communication | 2020 |
| Ruby-Mae Childrenswear Ltd | Wholesale & retail | 2018 |
| Rudge Engineering Limited | Professional & scientific | 2017 |
| Rudheath M.O.T. Centre Limited | Wholesale & retail | 2004 |
| Rudy DE Belgeonne Limited | Arts & recreation | 2009 |
| Rufford Automation Limited | Administrative & support | 2013 |
| Rugby Strength and Fundamentals Ltd | Education | 2026 |
| RUH Properties Ltd | Real estate | 2024 |
| Ruminder Sandhu Ltd | Wholesale & retail | 2023 |
| Rumis Hotels UK Ltd | Hospitality | 2026 |
| Rumour Cosmetics Limited | Wholesale & retail | 2018 |
| Runcorn Car Mart Limited | Wholesale & retail | 1959 |
| Runesol Limited | Wholesale & retail | 2016 |
| Runlogic Limited | Administrative & support | 2014 |
| Rural Networks Ltd | Administrative & support | 2020 |
| Rusa Legacy Limited | Professional & scientific | 2015 |
| Rusape Mechanical Engineering Services Ltd | Administrative & support | 2024 |
| Rushton Hinchy Holdings Limited | Professional & scientific | 2012 |
| Ruskim Seafoods Limited | Wholesale & retail | 1982 |
| Russell Care Ltd | Health & social care | 2024 |
| Russell Eaton Consultancy Ltd | Information & communication | 2025 |
| Ruth Holden Aesthetics Limited | Health & social care | 2018 |
| Rutherford Transport Technologies Limited | Manufacturing | 2014 |
| Rutter Affiliate Marketing Limited | Wholesale & retail | 2026 |
| RV Faulds Limited | Hospitality | 2025 |
| RV29 Limited | Administrative & support | 2017 |
| RVF Enterprise Ltd | Information & communication | 2019 |
| RVL Safety Ltd | Other services | 2017 |
| RW Estates North West Ltd | Real estate | 2013 |
| RW Holmes Ltd | Real estate | 2021 |
| RW Piping Engineering Ltd | Professional & scientific | 2022 |
| RWB Taverns Limited | Hospitality | 2023 |
| RWC Tax Consultants Limited | Professional & scientific | 2013 |
| Rwmr Consulting Ltd | Administrative & support | 2025 |
| RWS Construction Solution Limited | Construction | 2018 |
| RWS Electrical Services Limited | Administrative & support | 2025 |
| RWS Management Limited | Administrative & support | 2012 |
| RWT Business Solutions Ltd | Administrative & support | 2007 |
| RXM Cycles Ltd | Transport & logistics | 2016 |
| RY Commissioning Ltd | Professional & scientific | 2019 |
| Ryan Mead Engineering Ltd | Construction | 2019 |
| Ryan Sutton-Edwards Ltd | Administrative & support | 2023 |
| Ryans Cider Company Limited | Wholesale & retail | 2024 |
| Ryans Solicitors Limited | Professional & scientific | 2013 |
| Rydal Project Management Ltd | Administrative & support | 2025 |
| Rydale Chemists Limited | Wholesale & retail | 1988 |
| Ryder Inc Ltd | Professional & scientific | 2014 |
| Ryder Properties (Cheshire) Limited | Real estate | 2019 |
| Ryders Gardening Services Ltd | Administrative & support | 2024 |
| Ryders of Warrington Limited | Administrative & support | 2013 |
| Ryecroft Consulting Limited | Information & communication | 2015 |
| Ryehill Consulting Ltd | Other services | 2019 |
| Ryelec Electrical Solutions Limited | Construction | 2021 |
| Ryelec Property Group Limited | Real estate | 2025 |