| Raylin Holdings Limited | Financial services | 2025 |
| Raynor 88 Limited | Hospitality | 2026 |
| Raza and Co Surgical Services Ltd | Health & social care | 2025 |
| Raza Corporations PVT Ltd | Wholesale & retail | 2024 |
| Raza GP Locums Ltd | Health & social care | 2018 |
| Razaverse Ltd | Wholesale & retail | 2026 |
| Razor Barber Hateley Drive Ltd | Other services | 2024 |
| Razor Fresh Limited | Other services | 2025 |
| Razor Sharp Tree Care Ltd | Administrative & support | 2026 |
| Razors Edge Wolverhampton Ltd | Other services | 2009 |
| RB & Co Holdings Ltd | Administrative & support | 2025 |
| RB City Property Services Ltd | Real estate | 2020 |
| RB Global Property Limited | Real estate | 2024 |
| RB Hire Limited | Administrative & support | 2024 |
| RB Renovate & Build Ltd | Construction | 2026 |
| RB Staffing Solutions Ltd | Transport & logistics | 2025 |
| RB Wolverhampton Ltd | Real estate | 2024 |
| RBA Securities Ltd | Construction | 2021 |
| Rbhm Services Ltd | Professional & scientific | 2026 |
| RBS Commercial GAS Ltd | Construction | 2021 |
| RBS Home Improvements Ltd | Construction | 2023 |
| RBS Transport Ltd | Transport & logistics | 2021 |
| RC (Wolverhampton) Ltd | Other services | 2025 |
| RCB Construction and Maintenance Limited | Construction | 2024 |
| RCE International Limited | Real estate | 2023 |
| RCH Lifestyle Ltd | Other services | 2021 |
| RCL Air Conditioning Contracts Limited | Construction | 2017 |
| RCS Furnishings Limited | Wholesale & retail | 2000 |
| RCS Transport Services Limited | Transport & logistics | 2023 |
| RCW Consultancy Ltd | Health & social care | 2022 |
| RD Away Trips Limited | Transport & logistics | 2023 |
| RD Day Trips Ltd | Transport & logistics | 2022 |
| Rdks Property Limited | Real estate | 2025 |
| RDM Cubicles Limited | Wholesale & retail | 2013 |
| RDM Osteopathy Ltd | Health & social care | 2023 |
| RDS Courier U.K. Limited | Transport & logistics | 2025 |
| RDS Performance Ltd | Wholesale & retail | 2025 |
| RE & ED Martin Holdings Limited | Financial services | 2023 |
| Re-Root Designs Ltd | Arts & recreation | 2011 |
| Reach and Unite Outreach and Empowerment CIC | Education | 2020 |
| Reach Psychology Limited | Health & social care | 2014 |
| Reachable Moments CIC | Education | 2024 |
| Reade Buray Limited | Professional & scientific | 1998 |
| Ready SET Acti- Fit Ltd | Education | 2026 |
| Real 25 Ltd | Real estate | 2019 |
| Real Arts Workshops Ltd | Education | 2022 |
| Real Blue Limited | Real estate | 2023 |
| Real Dates Limited | Hospitality | 2025 |
| Real Essence Global Services Limited | Health & social care | 2023 |
| Real Estates Property Sourcing Ltd | Real estate | 2019 |
| Real Food Shropshire Ltd | Hospitality | 2011 |
| Real Homes UK Estate Ltd | Information & communication | 2021 |
| Real Jerk Limited | Hospitality | 2020 |
| Real Lush Properties Limited | Real estate | 2022 |
| Real Sale Ltd | Wholesale & retail | 2026 |
| Real Sterling Ltd | Wholesale & retail | 2026 |
| Real View Images Ltd | Professional & scientific | 2024 |
| Really Secure Company UK Ltd | Other services | 2010 |
| Realm Estates Limited | Real estate | 2024 |
| Realrich Limited | Wholesale & retail | 2024 |
| Rebecca’S Retreat Limited | Other services | 2021 |
| Rebellion Apparel UK Ltd. | Wholesale & retail | 2019 |
| Rebels Holdings Ltd | Financial services | 2019 |
| Reborn Leisure Ltd | Hospitality | 2014 |
| Reborn Security Limited | Administrative & support | 2018 |
| Rebos HR Consulting Ltd | Administrative & support | 2017 |
| Recline World Furniture Limited | Wholesale & retail | 2010 |
| Recruit Here Ltd | Administrative & support | 2024 |
| Recruit Recruit Limited | Administrative & support | 2005 |
| Recruitformypub.Com Limited | Hospitality | 2017 |
| Recruitment Made Easy UK Ltd | Extraterritorial | 2021 |
| Rectal Bleeding Clinic Limited | Health & social care | 2010 |
| Rectory Care Limited | Health & social care | 2010 |
| Rectory Group Ltd | Extraterritorial | 2020 |
| Recycled Plastics (UK) Limited | Manufacturing | 2008 |
| Recycled Plastics UK Holdings Limited | Financial services | 2019 |
| Recyclus Group Limited | Water & waste | 2019 |
| Recyk Limited | Wholesale & retail | 2021 |
| Red Alarms Limited | Manufacturing | 2002 |
| Red BAT Investments Limited | Administrative & support | 2018 |
| Red Brick Property and Development Ltd | Construction | 2017 |
| Red FOX Property Development Limited | Real estate | 2003 |
| Red Lion Street Properties Limited | Real estate | 2021 |
| Red Nexus Ltd | Wholesale & retail | 2025 |
| Red Orcheed Ltd | Administrative & support | 2024 |
| Red Panda Homes Limited | Real estate | 2024 |
| Red Raven Solutions Limited | Construction | 2023 |
| Red Robyn Limited | Wholesale & retail | 2023 |
| Red Rose Builders Ltd | Construction | 2019 |
| Red Savannah Enterprises Limited | Information & communication | 2013 |
| Red Square Racing Ltd | Extraterritorial | 2024 |
| Red Vault Solutions Limited | Wholesale & retail | 2026 |
| Reda Care Ltd | Health & social care | 2021 |
| Redburn and Firmount Limited | Financial services | 2023 |
| Redcliffe Orthodontics Limited | Administrative & support | 2012 |
| Reddington Collective Ltd | Construction | 2025 |
| Reddiroll Limited | Manufacturing | 1981 |
| Redeemed Christian Church of GOD Hosanna House Christian Centre Limited | Health & social care | 2011 |
| Redeemed Mind Ltd | Health & social care | 2025 |
| Redfort Contracts Limited | Construction | 2022 |