| Rose Social (Midlands) Limited | Professional & scientific | 2023 |
| Rose Thani Ltd | Construction | 2024 |
| Roseacre Launderette Limited | Other services | 2017 |
| Rosegate Tax LLP | | 2025 |
| Rosemary Court Residents Association Limited | Real estate | 1996 |
| Rosevelt Limited | Real estate | 2023 |
| Rosewood Eternal Funerals Limited | Other services | 2023 |
| ROSH25 Ltd | Health & social care | 2025 |
| Rosspark Limited | Extraterritorial | 1993 |
| Rosterfy Ltd | Information & communication | 2019 |
| Rota Properties Ltd | Real estate | 2024 |
| Roto Spa Limited | Manufacturing | 2004 |
| Roughshooting.Com Ltd | Information & communication | 2021 |
| Rouhi Ltd | Hospitality | 2019 |
| Route 66 Burgers and Shakes Ltd | Hospitality | 2026 |
| Route Transport Ltd | Transport & logistics | 2023 |
| Rowans Day Nursery Ltd | Health & social care | 2003 |
| Rowans Foods Limited | Manufacturing | 2024 |
| Rowhill Motors Ltd | Wholesale & retail | 2016 |
| Rowmont Capital Limited | Financial services | 2021 |
| Rowsman Ltd | Manufacturing | 2003 |
| Rowvar Limited | Wholesale & retail | 2023 |
| Royal Carlton Estates Limited | Construction | 2005 |
| Royal Sutton Coldfield Town Sports Limited | Wholesale & retail | 2020 |
| Royal Town of Sutton Coldfield Funerals Ltd | Other services | 2020 |
| Royiris Ltd | Real estate | 2021 |
| Roys House Limited | Professional & scientific | 2021 |
| Royston Smith Ltd | Wholesale & retail | 2012 |
| RPA Mayson Estates Ltd | Construction | 2026 |
| RPW Heating & Plumbing Limited | Construction | 2024 |
| RR Revive Ltd | Health & social care | 2024 |
| RRG Retail Ltd | Wholesale & retail | 2014 |
| RS Bidco Limited | Financial services | 2015 |
| RS Estate Holdings Ltd | Real estate | 2022 |
| RS Fleet Academy Limited | Education | 2013 |
| RS Hughes Property Ltd | Real estate | 2022 |
| RS Properties (Birmingham) Limited | Other services | 2014 |
| RS Topco Limited | Financial services | 2015 |
| RS Ukgroup Ltd | Wholesale & retail | 2022 |
| RS3 Dental Limited | Health & social care | 2015 |
| RSB Quality Solutions Ltd | Professional & scientific | 2019 |
| RSI Community | Other services | 2019 |
| Rsjm Global Ltd | Information & communication | 2016 |
| Rsjr Limited | Real estate | 2025 |
| RSL Solutions Limited | Professional & scientific | 2012 |
| RSM Homes Ltd | Real estate | 2024 |
| RSM Land Holdings Limited | Real estate | 2016 |
| RSR Finance Ltd | Professional & scientific | 2025 |
| RSR Resource Solutions Ltd | Information & communication | 2024 |
| RSS Smile Ltd | Health & social care | 2019 |
| RTC (UK) Limited | Administrative & support | 2008 |
| RTG Enterprises Group Limited | Professional & scientific | 2024 |
| RTH Tamworth Limited | Real estate | 2022 |
| RU Estate Holdings Ltd | Construction | 2024 |
| Ruchika Aggarwal Limited | Health & social care | 2018 |
| Ruddlands (Grimsby) Limited | Real estate | 1948 |
| Rudds Property Limited | Real estate | 2024 |
| Rudra Investments Limited | Real estate | 2020 |
| Rudra Shiva Limited | Financial services | 2021 |
| RUE JAY Music Ltd | Real estate | 2022 |
| Rufam Ltd | Real estate | 2012 |
| Rugby Tape Ltd | Wholesale & retail | 2025 |
| Rugeley Aluminium Products Limited | Manufacturing | 1972 |
| Rugeley Metals Limited | Administrative & support | 1981 |
| Runjeet Singh Limited | Wholesale & retail | 2015 |
| Running Stride Limited | Wholesale & retail | 2022 |
| Rural Cottages Limited | Construction | 1957 |
| Rushwick Property Support Services Limited | Real estate | 2017 |
| Russell's Consulting Ltd | Health & social care | 2018 |
| RUT 5 Limited | Manufacturing | 2013 |
| Rutherford Glen Investments Ltd | Financial services | 2026 |
| RV Booking Systems Limited | Information & communication | 2026 |
| RW Tooling Limited | Manufacturing | 2009 |
| Ryaa Medical Ltd | Health & social care | 2012 |
| Ryan Property Services (Manchester) Limited | Real estate | 2024 |
| Ryan Road Express Limited | Administrative & support | 2016 |
| Ryan Technology Limited | Information & communication | 2025 |
| Ryder CUP Limited | Arts & recreation | 1991 |
| Ryders Homes Limited | Real estate | 2025 |
| Ryknild Securities Limited | Construction | 1973 |
| S & G Property Developments Limited | Real estate | 1998 |
| S & K Global Distributors Limited | Wholesale & retail | 2008 |
| S & M Carpentry Limited | Administrative & support | 2018 |
| S & P Properties (Midlands) Limited | Real estate | 2015 |
| S & T Integrated Security Limited | Construction | 2009 |
| S a Hashmi Ltd | Health & social care | 2023 |
| S B Kitchens & Bedrooms Ltd | Wholesale & retail | 2016 |
| S Byrne Construction Ltd | Construction | 2009 |
| S Cremins Consulting Limited | Professional & scientific | 2020 |
| S D & P Investments Ltd | Real estate | 2022 |
| S Digital Group Ltd | Professional & scientific | 2013 |
| S E Fitness Ltd | Arts & recreation | 2013 |
| S E Wholesale Limited | Wholesale & retail | 2011 |
| S G Jones Associates Limited | Construction | 2000 |
| S G T Training Ltd | Other services | 2010 |
| S Gangar Limited | Professional & scientific | 2013 |
| S Goswami Orthopaedic Care Limited | Health & social care | 2017 |
| S Haider Consultancy Limited | Health & social care | 2022 |
| S J Cleaning (Midlands) Limited | Administrative & support | 2009 |
| S J Property Maintenance Limited | Real estate | 2020 |