| Road Management Operations Ltd | Construction | 2026 |
| Road Marking Vehicles Ltd | Construction | 2016 |
| Roadcare Ltd | Administrative & support | 2016 |
| ROB Golder Ltd | Other services | 2010 |
| ROB Kelly Media and PR Ltd | Professional & scientific | 2024 |
| Robert Holt Transport Ltd | Transport & logistics | 2019 |
| Robert Leonard Business Recovery Limited | Professional & scientific | 2019 |
| Robert Whetham Associates Ltd | Professional & scientific | 2003 |
| Robert's Motors Ltd | Wholesale & retail | 2020 |
| Roberts Commerce Ltd | Wholesale & retail | 2026 |
| Roberts-Cheers Ltd | Construction | 2023 |
| Robertson Cooper Limited | Professional & scientific | 1997 |
| Robin Kent Design Limited | Professional & scientific | 2014 |
| Robinson Building Solutions Limited | Construction | 2017 |
| Robinson CR8 Ltd | Manufacturing | 2026 |
| Robinson Site Services Ltd | Manufacturing | 2024 |
| Robinsons Foods Limited | Agriculture & fishing | 2012 |
| Robocube Ltd | Wholesale & retail | 2020 |
| Rock Croft Limited | Wholesale & retail | 2003 |
| Rock GAS Services Ltd | Construction | 2019 |
| Rocket Shakes Ltd | Hospitality | 2020 |
| Rocket Stores Limited | Wholesale & retail | 2016 |
| Rockford's 24/7 Ltd | Health & social care | 2017 |
| Rockingham Oak Limited | Manufacturing | 2013 |
| Rockwall Construction Ltd | Construction | 2020 |
| Rocky Mitchinson Creative Services Limited | Administrative & support | 2010 |
| ROE Moor Garages (Eccleston) Limited | Transport & logistics | 1978 |
| ROF & RAJ Properties Ltd | Real estate | 2025 |
| Rofus Investments Limited | Water & waste | 2025 |
| Roland LDS Properties Ltd | Real estate | 2019 |
| Rolltech International Limited | Wholesale & retail | 2010 |
| Romford Football Performance Academy Ltd | Arts & recreation | 2020 |
| Ronan International Ltd | Transport & logistics | 2025 |
| Ronfell Group Limited | Manufacturing | 2005 |
| Rongqiang Ltd | Hospitality | 2023 |
| Ronni Construction Limited | Construction | 2023 |
| Ronnie's Deli and Desserts Ltd | Hospitality | 2026 |
| Roof Medics Limited | Construction | 2014 |
| Roof Profile Solutions Limited | Administrative & support | 2008 |
| Roof Profile Surveying Ltd | Professional & scientific | 2022 |
| Roofing Cladding & Facade Solutions Limited | Construction | 2003 |
| Roofline Windows and Doors Limited | Construction | 2011 |
| Room for Beauty Wirral Ltd | Other services | 2017 |
| Rooms to LET Ltd | Real estate | 2017 |
| Roosters Chicken Notts Ltd | Hospitality | 2019 |
| ROQ IT Limited | Information & communication | 2016 |
| ROQ Limited | Information & communication | 2009 |
| Rorae Hair Extensions Ltd | Wholesale & retail | 2025 |
| Roscoe Engineering (Coppull) Ltd | Manufacturing | 2021 |
| Roscorp Logistics Limited | Transport & logistics | 2018 |
| Roscot Consult Ltd | Other services | 2020 |
| Rose Amelia Properties Limited | Households | 2020 |
| Rose and Rose Ltd | Extraterritorial | 2023 |
| Rose and Rose Trading Limited | Real estate | 1995 |
| Rose Reformer Ltd | Arts & recreation | 2025 |
| Rosemary and Vine Limited | Wholesale & retail | 2016 |
| Rosh Engineering Limited | Manufacturing | 1981 |
| Ross and Sons Ltd | Real estate | 2018 |
| Ross Irvine Auto Services Limited | Wholesale & retail | 2018 |
| Ross Property Holdings Ltd | Real estate | 2024 |
| Rossall Beach Logistics Limited | Transport & logistics | 2013 |
| Rossendale Driveways & Patios Limited | Construction | 2019 |
| Rossendale Residential Properties Limited | Construction | 2020 |
| Rossendale Roofing Limited | Construction | 2024 |
| Rossendale Tyres Limited | Wholesale & retail | 2024 |
| Rostherne IT Consultants Limited | Information & communication | 2009 |
| Rothwell Real Estate Ltd | Real estate | 2022 |
| Roushill FH Limited | Real estate | 2023 |
| Roval Limited | Manufacturing | 1990 |
| Rovell Finance Limited | Financial services | 2025 |
| Rowancroft Travel Ltd | Administrative & support | 2018 |
| Rowanthwaite Limited | Construction | 2023 |
| Rowland Earthing Limited | Wholesale & retail | 2021 |
| Rowley Dunleavy Services Limited | Manufacturing | 2023 |
| Rowlinson Property Ltd | Real estate | 2019 |
| Rowmarl Tiles Limited | Construction | 2025 |
| ROY Christopher & Sons Limited | Wholesale & retail | 2009 |
| Royle Invest Ltd | Real estate | 2025 |
| Royle Solutions Limited | Information & communication | 2019 |
| RP Global Services Ltd | Transport & logistics | 2015 |
| RPG Financial Limited | Extraterritorial | 2004 |
| RPN Holdings Limited | Real estate | 2023 |
| RPS Housing Limited | Real estate | 2010 |
| RPW Consulting Limited | Professional & scientific | 2024 |
| RS Produce Consultancy Limited | Wholesale & retail | 2025 |
| RSC Acquisitions Limited | Financial services | 1999 |
| RSH Surveyors Ltd | Financial services | 2025 |
| Rsmj Limited | Real estate | 2019 |
| RTJ (NW) Limited | Real estate | 2012 |
| RTS Muni Ltd | Wholesale & retail | 2019 |
| Rubbish IT Support Ltd | Information & communication | 2025 |
| Rubico Security Ltd | Extraterritorial | 2018 |
| RUF Engineering Limited | Professional & scientific | 2016 |
| Ruffaland Farm Ltd | Agriculture & fishing | 2005 |
| Rufford Limited | Construction | 1997 |
| Run Capital Limited | Administrative & support | 2020 |
| Runit Ltd | Wholesale & retail | 2026 |
| Runshaw Hall (Euxton) Management Company Limited | Households | 1997 |
| Runshaw Hall Freehold Limited | Households | 2011 |
| Runshaw Hall Management Company Limited | Households | 2010 |