| Reverse Aesthetics Limited | Health & social care | 2017 |
| Reviumyst Ltd | Transport & logistics | 2024 |
| Revive Beauty Academy Limited | Other services | 2020 |
| Revive Laser Limited | Other services | 2014 |
| Revive! Auto Innovations (Birmingham North) Limited | Wholesale & retail | 2008 |
| Revixo Ltd | Information & communication | 2026 |
| Revmax Rides Consult Limited | Wholesale & retail | 2024 |
| Revona BIO Ltd | Professional & scientific | 2022 |
| Revones Ltd | Transport & logistics | 2024 |
| Revorzy Ltd | Administrative & support | 2024 |
| Rewest Ltd | Administrative & support | 2024 |
| Rewesther Ltd | Wholesale & retail | 2024 |
| Rewesthium Ltd | Transport & logistics | 2024 |
| Rewire Movement Ltd | Hospitality | 2025 |
| Rewsthic Ltd | Wholesale & retail | 2024 |
| Rexerium Ltd | Wholesale & retail | 2024 |
| Rexir Ltd | Wholesale & retail | 2024 |
| Rexory Ltd | Transport & logistics | 2024 |
| Rexville Solutions Limited | Transport & logistics | 2013 |
| REY E S Ltd | Health & social care | 2025 |
| Reyac Awards Ltd | Professional & scientific | 2023 |
| Reymak Facilities Maintenance Ltd | Construction | 2016 |
| Reynolds Traffic Ltd | Construction | 2022 |
| RG Contracts (Midlands) Limited | Construction | 2026 |
| RG Housing Ltd | Construction | 2021 |
| RG Property Developers Ltd | Construction | 2023 |
| RG Real Estate Limited | Real estate | 2022 |
| Rghproperties Ltd | Real estate | 2020 |
| RH & J Properties Limited | Real estate | 2025 |
| RH Detailing Ltd | Administrative & support | 2026 |
| RH Energy Solutions Limited | Professional & scientific | 2023 |
| Rhcarehome Ltd | Health & social care | 2023 |
| RHD (UK) Limited | Health & social care | 2012 |
| Rheumdoc Consulting Ltd | Health & social care | 2017 |
| Rheumestate Ltd | Real estate | 2020 |
| Rhgi Limited | Health & social care | 2025 |
| Rhino Drainage & Jetting Services Ltd | Water & waste | 2026 |
| Rhino Plumbing & Heating Services Limited | Construction | 2016 |
| Rhinologistics WMD Ltd | Transport & logistics | 2024 |
| Rhodaville Healthcare Limited | Health & social care | 2023 |
| RHS Fast Food Limited | Hospitality | 2025 |
| RIA PO Limited | Hospitality | 2025 |
| Ria-Imagine Housing Limited | Real estate | 2025 |
| Riaz Locum Limited | Health & social care | 2023 |
| Ribeth Ltd | Health & social care | 2024 |
| Rica Cattering Services Ltd | Hospitality | 2019 |
| Rice & Co (Brownhills) Limited | Professional & scientific | 2017 |
| Rice Club Event Ltd | Hospitality | 2025 |
| Richabel Consulting Ltd | Administrative & support | 2020 |
| Richard James Projects Limited | Professional & scientific | 2025 |
| Richard Lichfield Real Estate Limited | Real estate | 2024 |
| Richard Morley Limited | Transport & logistics | 2021 |
| Richard Neville Latchman Ltd | Real estate | 2025 |
| Richard Retail Ltd | Wholesale & retail | 2023 |
| Richard Trotman Properties Ltd | Real estate | 2025 |
| Richards Hair Limited | Other services | 2018 |
| Richmond Fowler Holdings Ltd | Wholesale & retail | 2023 |
| Richtec Property Ltd | Real estate | 2026 |
| Richtec Security Ltd | Administrative & support | 2016 |
| Richtec Studios Ltd | Manufacturing | 2025 |
| Rickna HR Ltd | Administrative & support | 2025 |
| Rickstone Quartz UK Ltd | Construction | 2024 |
| Ricose Ltd | Administrative & support | 2024 |
| RID Transport Ltd | Transport & logistics | 2025 |
| Rideafrique Ltd | Wholesale & retail | 2024 |
| Ridez & Vibez Ltd | Wholesale & retail | 2021 |
| Ridgeview Properties Ltd | Real estate | 2019 |
| Ridgway Construct Limited | Professional & scientific | 2018 |
| Ridingwear (Walsall) Ltd | Wholesale & retail | 1999 |
| Rifa Leads Generator Ltd | Professional & scientific | 2022 |
| Riga Convenience Store Limited | Wholesale & retail | 2018 |
| Right Choice Consultancy and Training Ltd | Professional & scientific | 2014 |
| Right Time Removals Ltd | Transport & logistics | 2021 |
| Right-Fix Roofcare Limited | Construction | 2022 |
| Rightlet Ltd | Households | 2016 |
| Rikane Barbers Ltd | Other services | 2019 |
| Riki Care Limited | Health & social care | 2025 |
| Rikki's Drunken Duck Ltd | Hospitality | 2026 |
| Riley & Co Limited | Professional & scientific | 2006 |
| Riley Industries Limited | Wholesale & retail | 1985 |
| RIO Trans Ltd | Transport & logistics | 2018 |
| Rippy Construction Ltd | Construction | 2025 |
| Riri Pilates Ltd | Arts & recreation | 2025 |
| Rise Pole and Aerial Fitness Studio Ltd | Arts & recreation | 2026 |
| Rise Property Developers and Management Limited | Real estate | 2025 |
| Rise Robot Cafe Limited | Hospitality | 2025 |
| Rising Stars Academy Limited | Education | 2018 |
| Rising Stars Community Outreach Ltd | Education | 2019 |
| Risk Holdings Limited | Financial services | 2016 |
| Risk Telematics UK Limited | Wholesale & retail | 2013 |
| RIT Associates Ltd | Administrative & support | 2010 |
| Riten Ltd | Health & social care | 2017 |
| River Cole Ltd | Professional & scientific | 2023 |
| River Early Years Limited | Professional & scientific | 2022 |
| Riverside Home Care Ltd | Health & social care | 2011 |
| Riverside Property & Development Limited | Households | 2026 |
| Riverview Investments Limited | Real estate | 2019 |
| Rivex Ltd | Wholesale & retail | 2025 |
| Rivora Cuisine Ltd | Hospitality | 2026 |
| Riwayaat Couture Ltd | Wholesale & retail | 2026 |