| Rainmedical Ltd | Professional & scientific | 2018 |
| Rajesh Rajni Rana Properties Ltd | Real estate | 2022 |
| Rakutis Textiles Limited | Wholesale & retail | 2025 |
| Rakzz 786 Ltd | Wholesale & retail | 2026 |
| Rally Industrial Services Limited | Construction | 1999 |
| Rally Together Limited | Arts & recreation | 2008 |
| Ramany Ltd | Health & social care | 2026 |
| Ramsorrun Limited | Education | 2009 |
| Rana Windows and Construction Ltd | Construction | 2019 |
| Ranas Petroleum Ltd | Wholesale & retail | 2017 |
| Randhawa Courier Freight Ltd | Transport & logistics | 2026 |
| Random ACT of Kindness Black Country CIC | Health & social care | 2025 |
| Rangers Solihull Limited | Hospitality | 2018 |
| Raniabeauty Ltd | Other services | 2022 |
| RANYA24/7 Limited | Wholesale & retail | 2026 |
| Rapha Catering Arden Ltd | Hospitality | 2026 |
| Rapha Catering Clopton Ltd | Administrative & support | 2020 |
| Rapha Catering Harbury Ltd | Administrative & support | 2020 |
| Rapha Catering Holdings Ltd | Financial services | 2025 |
| Rapid Route Delivery Ltd | Extraterritorial | 2024 |
| Rashid Distribution Ltd | Wholesale & retail | 2022 |
| Rasode Ltd | Real estate | 2025 |
| Rastiferv Ltd | Administrative & support | 2021 |
| Rath Logistics Ltd | Transport & logistics | 2020 |
| Raven Consultants Limited | Information & communication | 1996 |
| Ravenscroft Developments Limited | Construction | 1991 |
| Raving Paws Limited | Other services | 2024 |
| Rawji Exclusive Ltd | Wholesale & retail | 2026 |
| Ray&Company Ltd | Administrative & support | 2024 |
| Raytech Solution Limited | Other services | 2026 |
| Rayu Sedgley Ltd | Hospitality | 2024 |
| RBH Management Company Limited | Households | 2007 |
| Rbiz Ltd | Wholesale & retail | 2025 |
| RBJ Holdings and Investments Ltd | Financial services | 2025 |
| RBJ Property Surveys Ltd | Professional & scientific | 2025 |
| RBL Field House Care Ltd | Health & social care | 2019 |
| RBS Ground Maintenance Limited | Administrative & support | 2018 |
| RDB Commerce Midlands Ltd | Wholesale & retail | 2023 |
| RDH Fire Doors Ltd | Public administration | 2025 |
| Rdodki Limited | Hospitality | 2025 |
| RDP Investment Ltd | Real estate | 2025 |
| Re-Twisted Hair Design Ltd | Other services | 2019 |
| RE4ORM Fitness Limited | Arts & recreation | 2020 |
| READY4LIFE Limited | Health & social care | 2018 |
| Real Authentic Ltd | Information & communication | 2018 |
| Real Rivet Accountancy Ltd | Professional & scientific | 2016 |
| Real Sporting DE Futbol Limited | Arts & recreation | 2026 |
| Reality Acre Investments Limited | Real estate | 2025 |
| Rebmic Design Ltd | Professional & scientific | 2022 |
| Rebourn Rides Ltd | Water & waste | 2025 |
| Rebourne Studios Limited | Information & communication | 2014 |
| Recoverx Ltd | Wholesale & retail | 2025 |
| Recruithoot Limited | Administrative & support | 2024 |
| Rectangle One Ltd | Professional & scientific | 2022 |
| Recycle Rehome Limited | Other services | 2025 |
| Recyclers Rewarded Ltd | Manufacturing | 2015 |
| Red Ball Limited | Professional & scientific | 1999 |
| Red Heart Logistics Ltd | Administrative & support | 2016 |
| Red Hot Vaping Ltd | Wholesale & retail | 2018 |
| Red Kite Resource Solutions Ltd | Administrative & support | 2024 |
| Red Rock Consultants (Holdings) Limited | Construction | 2013 |
| Red Rock Consultants Ltd | Administrative & support | 2009 |
| Redcare European Logistics Limited | Transport & logistics | 2025 |
| Redcarpet Media Limited | Information & communication | 2006 |
| Reddy Metals UK Ltd | Water & waste | 1997 |
| Redeemed Life Housing Ltd | Hospitality | 2025 |
| Redhall Gornal Limited | Hospitality | 2022 |
| Redhall House Limited | Hospitality | 2026 |
| Redhill Garage Dudley Limited | Professional & scientific | 2024 |
| Redmill Construction Limited | Construction | 2017 |
| Redml Hotels Limited | Hospitality | 2017 |
| Redml Leisure Limited | Hospitality | 2017 |
| Refolligen Ltd | Other services | 2021 |
| Reform Automotive Limited | Wholesale & retail | 2022 |
| Refresca Limited | Hospitality | 2013 |
| Regen Household CIC | Water & waste | 2020 |
| Regency Recliners Holdings Limited | Wholesale & retail | 2013 |
| Regency Recliners Limited | Manufacturing | 1981 |
| Regent Road Management Company Limited | Administrative & support | 2006 |
| Regent Street Properties Ltd | Real estate | 2024 |
| Regent Upholstery Ltd | Manufacturing | 2018 |
| Regis Property Development Ltd | Construction | 2019 |
| Rehoboth Supported Housing and Counselling Ltd | Health & social care | 2018 |
| Relax & Recline Limited | Wholesale & retail | 2025 |
| Remyfinedining Ltd | Hospitality | 2020 |
| Renee's Body Piercing & Beauty Studio Ltd | Other services | 2019 |
| Reneu Limited | Other services | 2024 |
| Renew Holdings Midlands Ltd | Financial services | 2024 |
| Renew Property Renovations Ltd | Construction | 2024 |
| Renovate WM Limited | Construction | 2026 |
| Renovationbuilderz Ltd | Manufacturing | 2026 |
| Renovive Ltd | Construction | 2026 |
| Replyshort Limited | Construction | 1997 |
| Represent Property Ltd | Real estate | 2024 |
| Reserved Healthcare Limited | Health & social care | 2023 |
| Resight Ltd | Professional & scientific | 2025 |
| Resolution Doors Limited | Manufacturing | 2021 |
| Resourcefully Insight Facilitation Ltd | Professional & scientific | 2024 |
| REV PR Ltd | Professional & scientific | 2015 |
| Revive Valeting Ltd | Administrative & support | 2026 |