| Retrofit Windows Limited | Construction | 2016 |
| Reuben Care Ltd | Health & social care | 2016 |
| Revenuerich Ltd | Information & communication | 2016 |
| Revilo Racing Ltd | Professional & scientific | 2025 |
| RFO (Burton) Limited | Construction | 2024 |
| RG ITS Ltd | Professional & scientific | 2021 |
| Rhino Vehicle Transport Limited | Transport & logistics | 2023 |
| Rhodes Haulage Limited | Transport & logistics | 2013 |
| RHR Services Ltd | Wholesale & retail | 2022 |
| Rices Electrical Services Ltd | Construction | 2026 |
| Richmond Restaurants Limited | Hospitality | 1999 |
| Ridgecliff Bespoke Carpentry Limited | Manufacturing | 2021 |
| Right Path Construction Ltd | Construction | 2012 |
| Right Rents Property Ltd | Real estate | 2013 |
| Rightfit Interiors Ltd | Construction | 2022 |
| Rightscreed Limited | Construction | 2011 |
| Ringmerit 2 Limited | Professional & scientific | 2026 |
| Ringmerit Limited | Professional & scientific | 2000 |
| Rita Rock Global Ltd | Financial services | 2025 |
| RJL Cladding Limited | Construction | 2017 |
| RJM Transport Ltd | Transport & logistics | 2022 |
| RJS Property Solutions Limited | Construction | 2025 |
| RK Connections Limited | Transport & logistics | 2025 |
| RKN Dental Limited | Health & social care | 2024 |
| RMP Build Assist Limited | Construction | 2026 |
| RMR Materials Testing Co Limited | Professional & scientific | 2003 |
| RMW Housing Limited | Real estate | 2024 |
| RNG Welding Services Ltd | Construction | 2014 |
| RNL Property & Consultancy Services Ltd | Construction | 2017 |
| ROB Marshall Electrical Ltd | Construction | 2021 |
| ROB Newey Butchers Limited | Wholesale & retail | 2016 |
| Robins Draughting Limited | Professional & scientific | 2014 |
| Rockwaterair Limited | Wholesale & retail | 2010 |
| Rodar Limited | Manufacturing | 2013 |
| Rodgers Utilities Limited | Construction | 2014 |
| Rokip Limited | Financial services | 2022 |
| Romak Welding and Fabrications Ltd | Manufacturing | 2023 |
| Roman Heating Ltd | Construction | 2021 |
| Roofing Response Ltd | Construction | 2025 |
| Roofstyle (Midlands) Ltd | Construction | 2014 |
| Roofstyle Assets Limited | Professional & scientific | 2012 |
| Roofstyle Limited | Construction | 1991 |
| Rookman Properties Limited | Real estate | 1990 |
| Room Space Outside Limited | Administrative & support | 2023 |
| Rooted Care Ltd | Health & social care | 2026 |
| Ropetec Safety Solutions Limited | Administrative & support | 2016 |
| Rosebury Travel Ltd | Administrative & support | 2023 |
| Rosewarn Property Limited | Real estate | 2021 |
| Roundhall Limited | Public administration | 2014 |
| Roundhill Day Nursery Limited | Education | 2012 |
| ROW Flat Management Company (Hoylake) Limited(The) | Real estate | 1980 |
| Rowan Court Management (Kingswinford) Limited | Households | 1994 |
| Rows Construction Limited | Construction | 2025 |
| RR Capital Management Ltd | Extraterritorial | 2022 |
| RSR Business Services Limited | Professional & scientific | 2015 |
| Rubix MEP Ltd | Professional & scientific | 2022 |
| RVP Holdings Ltd | Financial services | 2024 |
| RVP Services Ltd | Other services | 2022 |
| RWH Maintenance & Services Ltd | Real estate | 2013 |
| RWT Enterprises Limited | Arts & recreation | 2025 |
| Ryla Combustion Services Limited | Construction | 2017 |
| Rylee and Co Clearance Limited | Wholesale & retail | 2026 |
| S & R Construction Limited | Construction | 1998 |
| S & R Traffic Management Ltd | Construction | 2024 |
| S & S Steelstock Holdings Limited | Professional & scientific | 2020 |
| S & S Steelstock Limited | Wholesale & retail | 1991 |
| S & S Steelstock Property Limited | Real estate | 2025 |
| S Barker Limited | Manufacturing | 2026 |
| S Coleyshaw Limited | Construction | 2017 |
| S Leigh Finance Ltd | Professional & scientific | 2024 |
| S N P Food Machinery Limited | Manufacturing | 2012 |
| S P Concrete Limited | Manufacturing | 2024 |
| S Reece Building Contractors Limited | Construction | 2016 |
| S V Johnson Ltd | Construction | 2015 |
| S&J Properties & Maintenance Ltd | Real estate | 2024 |
| S&S Beers and Spirits Ltd | Hospitality | 2024 |
| S.W. Steel Structures Limited | Construction | 2016 |
| Safeway Conservatories Limited | Construction | 2002 |
| Sahks Ltd | Wholesale & retail | 2025 |
| Sahota Partners Ltd | Financial services | 2026 |
| Saje Property Renovations Limited | Construction | 2023 |
| Sakabe Solutions Ltd | Wholesale & retail | 2025 |
| Salon TEN (Newport) Limited | Other services | 2024 |
| Salon TEN Ltd | Other services | 2009 |
| Salop Pipework Services Ltd | Construction | 2022 |
| SAM & Shahi Ltd | Hospitality | 2017 |
| Samica Properties Ltd | Real estate | 2025 |
| Samphire Ltd | Professional & scientific | 2023 |
| Samson Aggregates Ltd | Mining & quarrying | 2018 |
| Samstell Ventures Ltd | Wholesale & retail | 2015 |
| Sandhars Propertys Limited | Households | 2022 |
| Sangha Property Developments Ltd | Real estate | 2023 |
| Sanitary Steel Ltd | Wholesale & retail | 2017 |
| Sankey Group Holdings Limited | Construction | 2025 |
| Sapphire Installation and Design Services Ltd. | Manufacturing | 2003 |
| Sarexon Limited | Financial services | 2022 |
| Savara Active Limited | Wholesale & retail | 2026 |
| Savaria Lifts (UK) Ltd. | Administrative & support | 2000 |
| SBB Asphalt Ltd | Construction | 2023 |
| Sbillingham Limited | Hospitality | 2022 |