| Quest Property Rental Limited | Real estate | 2024 |
| Quest Transport Services Limited | Transport & logistics | 2023 |
| Quick One Stop Market Ltd | Other services | 2025 |
| Quick Tyre & Car Wash Limited | Administrative & support | 2026 |
| Quinn Bros Industries Ltd | Manufacturing | 2017 |
| R & Co Enterprise Ltd | Real estate | 2025 |
| R & D Kayes Properties Limited | Real estate | 2025 |
| R & H Hill Leisure Limited | Hospitality | 2021 |
| R & S Design Limited | Manufacturing | 2002 |
| R Gandley Limited | Wholesale & retail | 2018 |
| R J Calder Plastering & Building Services Limited | Construction | 2012 |
| R Kent Painters Limited | Construction | 2018 |
| R S & I Limited | Administrative & support | 2006 |
| R Stokes & Sons Limited | Construction | 2003 |
| Racebase Limited | Wholesale & retail | 2008 |
| Rahman Artistry Ltd | Wholesale & retail | 2024 |
| Raja Quality Construction Ltd | Construction | 2025 |
| Ramona Pharma Limited | Wholesale & retail | 2025 |
| Rams Heating Limited | Wholesale & retail | 2019 |
| RD Coldroom Installations Limited | Construction | 2016 |
| RDS Maintenance Ltd | Administrative & support | 2023 |
| Re-Found Collective Ltd | Other services | 2026 |
| Reall Eyes Limited | Wholesale & retail | 2026 |
| Receipt Tracker Limited | Information & communication | 2014 |
| Recruitment and HR Management Limited | Information & communication | 2018 |
| Red Two Ltd | Real estate | 2020 |
| Reddal R&D Limited | Professional & scientific | 2014 |
| Regency Bathrooms Ltd | Wholesale & retail | 2023 |
| Regency Cleaning (Halesowen) Ltd | Administrative & support | 2007 |
| Reindeer Racer Limited | Arts & recreation | 2012 |
| Reis Chrome Limited | Professional & scientific | 2004 |
| Reis Direction Limited | Professional & scientific | 2019 |
| Relic Collects Trading Limited | Wholesale & retail | 2026 |
| Renewable Utility Solutions Limited | Information & communication | 2021 |
| Renovaid Limited | Construction | 2025 |
| Resistance Welding Supplies Limited | Manufacturing | 1999 |
| Resource Emporium Services Ltd | Professional & scientific | 2014 |
| Retake Design Limited | Other services | 2012 |
| Reveal Beauty Ltd | Other services | 2023 |
| Reyaansri Limited | Information & communication | 2024 |
| Reynolds Renovations Ltd | Construction | 2022 |
| Riaiyla Ltd | Hospitality | 2025 |
| Ridge Electrical and Maintenance Limited | Construction | 2011 |
| Right Education Advanced Learning Limited | Education | 2025 |
| Rigidor Limited | Construction | 2007 |
| Riku Tafes Limited | Transport & logistics | 2025 |
| Rise and Realign CIC | Education | 2026 |
| River Foods Ltd | Hospitality | 2019 |
| RJ Mechanical Solutions Ltd | Manufacturing | 2016 |
| RJ Network Solutions Ltd | Information & communication | 2013 |
| RLS Installations Ltd | Manufacturing | 2016 |
| RM Lifestyle Holdings Ltd | Arts & recreation | 2026 |
| Rmcc Holdings Ltd | Financial services | 2025 |
| Rmsb Developments Ltd | Real estate | 2024 |
| Roadserviceuk Limited | Wholesale & retail | 2018 |
| ROB Davison Limited | Manufacturing | 2009 |
| ROB Lock`S Limited | Other services | 2007 |
| Robin Hood Giveaways Limited | Wholesale & retail | 2023 |
| Roger Pickford Limited | Professional & scientific | 2020 |
| ROI2CUT Shop Ltd | Other services | 2023 |
| Ronquah Ltd | Public administration | 2025 |
| Roofing & Solar Solutions Limited | Construction | 2025 |
| Roost Catering Co. Limited | Hospitality | 2022 |
| Rosewel Limited | Health & social care | 2023 |
| Roundhill Carpet & Flooring Limited | Wholesale & retail | 2016 |
| Rowswell Holiday Letting Limited | Real estate | 2025 |
| Royal Brush Manufacturing (UK) Limited | Wholesale & retail | 2002 |
| RS Soha Properties Ltd | Real estate | 2026 |
| Rumercs Limited | Health & social care | 2015 |
| Runako Space Ltd | Other services | 2024 |
| Runflat Holdings Limited | Financial services | 2010 |
| Runflat International Limited | Manufacturing | 2001 |
| Runflat Limited | Extraterritorial | 2010 |
| RWS Automation Limited | Extraterritorial | 2017 |
| Rysn Fitness Ltd | Wholesale & retail | 2025 |
| S & D Catering & Amusements Limited | Hospitality | 2024 |
| S & H Sweepers Limited | Construction | 2023 |
| S & L Plastics Limited | Professional & scientific | 2003 |
| S & R Simonds Limited | Financial services | 2021 |
| S and a Henderson Property's Limited | Real estate | 2021 |
| S Brigante Services Ltd | Manufacturing | 2024 |
| S Clinton Brickwork Limited | Construction | 1997 |
| S H Mots Limited | Wholesale & retail | 2025 |
| S K Patanwala & Co Ltd | Real estate | 2011 |
| S W S (2002) Limited | Real estate | 1961 |
| S&A Autosprays Ltd | Wholesale & retail | 2024 |
| S&J Welding Fabrications Midlands Ltd | Manufacturing | 2023 |
| S&M Freight Ltd | Transport & logistics | 2025 |
| S&S Bespoke Bathrooms Ltd | Construction | 2025 |
| S. Griffiths Refrigeration Limited | Construction | 2010 |
| S. Pearce Construction Limited | Construction | 2021 |
| S.B5 Services Limited | Hospitality | 2025 |
| S.M.A.R.T Repairs & Services Limited | Wholesale & retail | 2003 |
| Saarl Properties Ltd | Real estate | 2022 |
| Sadous Properties Limited | Real estate | 2012 |
| Sadous Properties UK Limited | Real estate | 2018 |
| Safesite Limited | Construction | 1991 |
| Safety and Access Limited | Professional & scientific | 1990 |
| Safety Engineering Products Limited | Manufacturing | 2010 |
| Safetyfm Limited | Professional & scientific | 2009 |