| RK Property (B'Ham) Ltd | Real estate | 2023 |
| RKD Construction Ltd | Construction | 2023 |
| RKS (Seen) Ltd | Real estate | 2016 |
| RKS Removals Ltd | Transport & logistics | 2021 |
| RL Services (Midlands) Ltd | Construction | 2019 |
| Rlmg Group Limited | Administrative & support | 2025 |
| RM56 Electrical Ltd | Construction | 2024 |
| RMG Logistics Limited | Transport & logistics | 2002 |
| RMG Services Ltd | Construction | 2022 |
| Rmsg MEP Service UK Ltd | Manufacturing | 2020 |
| Road on Transport Ltd | Transport & logistics | 2026 |
| Road Ready Repair Centre Ltd | Wholesale & retail | 2025 |
| Roadways Carrier Ltd | Transport & logistics | 2023 |
| ROB D Allen Limited | Professional & scientific | 2008 |
| Robert Hopkins and SON Limited | Water & waste | 1933 |
| Robert Hopkins Environmental Services Limited | Water & waste | 1993 |
| Robin Reed International Limited | Wholesale & retail | 1988 |
| Robin Reed Limited | Extraterritorial | 1981 |
| Robinson Brothers (Newcastle) Limited | Extraterritorial | 1976 |
| Rockpile Growth Tech Services Ltd | Information & communication | 2024 |
| Rockpile Ventures Ltd | Administrative & support | 2026 |
| Roger-Transport Ltd | Construction | 2014 |
| Rogue Wargaming Ltd | Wholesale & retail | 2019 |
| ROK Venture Limited | Transport & logistics | 2020 |
| Rokart Ltd | Transport & logistics | 2016 |
| Roleover Ltd | Transport & logistics | 2025 |
| Rolled Steel Sections Ltd | Manufacturing | 2023 |
| Roll’In Detailing Limited | Manufacturing | 2024 |
| Roman Survey Ltd | Professional & scientific | 2013 |
| Rona Nails Ltd | Other services | 2021 |
| Roof Cladd Ltd | Construction | 2014 |
| Room Savvy Limited | Real estate | 2018 |
| Rooster ME Ltd | Wholesale & retail | 2026 |
| Roots Beauty Store Ltd | Wholesale & retail | 2024 |
| ROR Community UK CIC | Health & social care | 2021 |
| ROR Homes Ltd | Real estate | 2026 |
| Rosowest Limited | Wholesale & retail | 2016 |
| Rosèlicious Ltd | Construction | 2024 |
| Rowan Cuts Ltd | Other services | 2026 |
| Rphd Consulting Limited | Administrative & support | 2019 |
| RR Pharma Ltd | Wholesale & retail | 2018 |
| RR Properties Midlands Ltd | Real estate | 2025 |
| RS Benipal Ltd | Transport & logistics | 2023 |
| RS Holding Properties Ltd | Real estate | 2024 |
| RS Universal Ltd | Transport & logistics | 2026 |
| RSA Transports U.K Ltd | Transport & logistics | 2025 |
| RSB Buildings Properties Ltd | Real estate | 2025 |
| RSI Dhillon Limited | Real estate | 2025 |
| RSK & KK Properties Ltd | Real estate | 2021 |
| Rsmd Trading Ltd | Wholesale & retail | 2024 |
| RSS Distribution Ltd | Wholesale & retail | 2020 |
| Rsup Limited | Wholesale & retail | 2025 |
| Rtheory Ltd | Health & social care | 2025 |
| Rubicon Carwash Co Ltd | Administrative & support | 2023 |
| Ruby 888 Limited | Hospitality | 2017 |
| Rubydot Handmade Limited | Manufacturing | 2020 |
| Ruchi Collection Ltd | Wholesale & retail | 2011 |
| Rudi Midlands Ltd | Transport & logistics | 2019 |
| Rudrax Online Ltd | Professional & scientific | 2026 |
| RV Acquisition Ltd | Construction | 2025 |
| RV Maryvale Ltd | Real estate | 2024 |
| Rxsh Ltd | Health & social care | 2025 |
| Ryanm TBT Ltd | Hospitality | 2016 |
| Rydding Lane Auto Sale Ltd | Wholesale & retail | 2025 |
| Ryders Green Methodist Day Centre | Health & social care | 2010 |
| Ryedale Property Developments Ltd | Construction | 2017 |
| RYS Distribution Ltd | Wholesale & retail | 2025 |
| RZ Online Store Ltd Ltd | Wholesale & retail | 2025 |
| S & B Fleet Support Ltd | Wholesale & retail | 2014 |
| S & E Chatta Ltd | Transport & logistics | 2017 |
| S & M Healthcare Services Limited | Health & social care | 2018 |
| S & R Properties (Midlands) Ltd | Real estate | 2020 |
| S Campbell Ltd | Financial services | 2023 |
| S Darby Limited | Professional & scientific | 2018 |
| S J S Logistics Limited | Transport & logistics | 2019 |
| S K Express Ltd | Transport & logistics | 2026 |
| S K Jewellers (SKJ) Ltd | Manufacturing | 2025 |
| S K Superstore Ltd | Wholesale & retail | 2023 |
| S N Kitchens & Bedrooms Limited | Manufacturing | 2023 |
| S Property Development Limited | Real estate | 2024 |
| S R Investments (WB) Ltd | Financial services | 2011 |
| S S Hayre Properties Ltd | Real estate | 2023 |
| S S Lights Ltd | Wholesale & retail | 2025 |
| S S Lolay Limited | Health & social care | 2023 |
| S Saini Electrical Ltd | Construction | 2021 |
| S Samra Construction UK Ltd | Construction | 2024 |
| S Sangle Ltd | Health & social care | 2024 |
| S Williams Service Limited | Health & social care | 2019 |
| S&A Fitters Limited | Manufacturing | 2024 |
| S&A Shopfront and Shutters Limited | Manufacturing | 2022 |
| S&E Courier Serices Ltd | Transport & logistics | 2024 |
| S&N Logistics Ltd | Transport & logistics | 2017 |
| S&Stransportuk Ltd | Transport & logistics | 2022 |
| S-Sylvia Care Limited | Health & social care | 2020 |
| S-West Retails Ltd | Hospitality | 2020 |
| S.C PLUM8ING Ltd | Construction | 2024 |
| S.S Concrete Imprinted Driveways Ltd | Construction | 2024 |
| SA Builds Ltd | Construction | 2025 |
| SA UK Foods Ltd | Hospitality | 2024 |
| Saburi Art Limited | Arts & recreation | 2021 |