| Roberts Holdings (Leeds) Limited | Hospitality | 2017 |
| Roberts Law Group Ltd | Financial services | 2026 |
| Roberts Surfacing & Groundworks Ltd | Extraterritorial | 2025 |
| Roberts, Mart (Holdings) Co. Ltd. | Professional & scientific | 2005 |
| Roberts, Mart (Properties) Ltd. | Real estate | 2005 |
| Roberts,Mart & Co.Limited | Manufacturing | 1890 |
| Robertson Housing Ltd | Real estate | 2023 |
| Robimatic Limited | Manufacturing | 1980 |
| Robin Goldsbro Consultancy Ltd | Professional & scientific | 2024 |
| Robin Ridge Consulting Limited | Professional & scientific | 2017 |
| Robina Z Hussein Limited | Professional & scientific | 2022 |
| Robino I.T. Consulting Limited | Information & communication | 2017 |
| Robinson & Co. Developments Limited | Construction | 2008 |
| Robinson & Sawdon Limited | Wholesale & retail | 1929 |
| Robinson Care Ltd | Health & social care | 2020 |
| Robinson Cundall LLP | | 2024 |
| Robinson Fletcher Properties Limited | Real estate | 2014 |
| Robinson Kinsey Ltd | Construction | 2021 |
| Robinson Lane (Kippax) Limited | Construction | 2017 |
| Robinson Publications Limited | Administrative & support | 1985 |
| Robinson Ralph Limited | Professional & scientific | 2017 |
| Robinson Restaurant Group Ltd | Hospitality | 2025 |
| Robinson Shields Management Limited | Professional & scientific | 2003 |
| Robinson Way Limited | Financial services | 2009 |
| Robinson West Ltd | Administrative & support | 2021 |
| Robinson's Aerial & Telephone Services Ltd | Wholesale & retail | 2022 |
| Robinsons Builders Ltd | Construction | 2017 |
| Robinsons Building Services Group Ltd | Financial services | 2013 |
| Robinsons Living Ltd | Construction | 2017 |
| Robinsons MEA Ltd | Construction | 2019 |
| Robinsons Site Support Ltd | Construction | 2017 |
| Robis Property Ventures Limited | Real estate | 2011 |
| Robo Marketing Ltd | Professional & scientific | 2019 |
| Robot Food Ltd | Professional & scientific | 2008 |
| Robrook Holdings Limited | Financial services | 2009 |
| Robrook Press Limited | Manufacturing | 1972 |
| Robros Properties Limited | Real estate | 2021 |
| Robson Property Solutions Ltd | Real estate | 2025 |
| Robson Respiratory Healthcare Ltd | Health & social care | 2022 |
| Robyn Inc Limited | Professional & scientific | 2016 |
| Roca Services Limited | Construction | 2016 |
| Roccella - Askew Developments Limited | Real estate | 2026 |
| Rocco Training Ltd | Information & communication | 2016 |
| Rocep Properties Ltd | Real estate | 2019 |
| Rocha Ramirez Limited | Wholesale & retail | 2015 |
| Roche Blackbelt Academy Limited | Arts & recreation | 2011 |
| Roche Healthcare Limited | Health & social care | 1994 |
| Roche Homecare Limited | Health & social care | 2022 |
| Roche Renewables Limited | Professional & scientific | 2014 |
| Roche Retirement Living Ltd | Real estate | 2017 |
| Rocinante Medical Services Ltd | Health & social care | 2023 |
| Rock Cable Solutions Ltd | Construction | 2016 |
| Rock Design Collective Ltd | Professional & scientific | 2025 |
| Rock Fabrications and Building Ltd | Construction | 2026 |
| Rock GAS & Plumbing Ltd | Construction | 2018 |
| Rock Point Consulting Ltd | Professional & scientific | 2024 |
| Rock Stone Property Services Ltd | Real estate | 2025 |
| Rock-Oilfield UK Limited | Professional & scientific | 2006 |
| Rockbrand Consultants Limited | Professional & scientific | 2024 |
| Rockcliff Limited | Wholesale & retail | 2024 |
| Rocket Consulting Limited | Information & communication | 2004 |
| Rocket Financial Solutions Limited | Administrative & support | 2013 |
| Rocket Freelance Limited | Other services | 2023 |
| Rocket Horse Limited | Information & communication | 2012 |
| Rocket Lolly Limited | Real estate | 2025 |
| Rocketlaunch Digital Limited | Information & communication | 2024 |
| Rockets Connect Limited | Information & communication | 2026 |
| Rockett-Taylor Consulting Limited | Professional & scientific | 2017 |
| Rocketware Limited | Information & communication | 2011 |
| Rockingfrog Limited | Other services | 2018 |
| Rockingham Properties Ltd | Real estate | 2016 |
| Rockley Hall Estates Limited | Real estate | 1996 |
| Rockliffe Systems Inc. | | 2000 |
| Rockstar Construction Ltd | Construction | 2021 |
| Rockwealth Leeds Ltd | Financial services | 2022 |
| Rockwealth Wharfedale Ltd | Financial services | 2023 |
| Rockwell Sterling Limited | Administrative & support | 2024 |
| Rockwood Property Developments Limited | Construction | 2022 |
| Rockwood Property Group Limited | Financial services | 2022 |
| Rockwood Property Partners Limited | Construction | 2022 |
| Rocky Top Trading Ltd | Wholesale & retail | 2026 |
| Rocky Élite Removals Ltd | Transport & logistics | 2026 |
| ROCKY333 Limited | Health & social care | 2019 |
| Rockys Diner Limited | Hospitality | 2022 |
| Roclar Invest Limited | Real estate | 2001 |
| Roco Properties Limited | Real estate | 1984 |
| Rocool Hvac Ltd | Manufacturing | 2018 |
| Rocs Investments Limited | Financial services | 2022 |
| ROD and James Fairs Limited | Other services | 2022 |
| Rodask Limited | Manufacturing | 2018 |
| Rodia Retreat Limited | Hospitality | 2022 |
| Rodiun Ltd | Information & communication | 2025 |
| Rodley BKM Ltd | Wholesale & retail | 2013 |
| Rodley Burger Limited | Hospitality | 2025 |
| Rodley Hall Maintenance Company (NO2) Limited | Households | 2009 |
| Rodley Interiors Limited | Construction | 1999 |
| Rodley Spice Limited | Hospitality | 2021 |
| Rodney-Davies Upholstery Co Limited(The) | | 1959 |
| Rody Ltd | Extraterritorial | 2013 |
| ROE Landscapes & Refurbishments Ltd | Administrative & support | 2026 |