| RR and Daughters Limited | Real estate | 2018 |
| RR Arts Tattoo & Barber Limited | Arts & recreation | 2025 |
| RR BD Limited | Hospitality | 2026 |
| RR Courier Services Limited | Transport & logistics | 2022 |
| RR Investments Holdings Limited | Financial services | 2025 |
| RR Newport Investment Ltd | Real estate | 2026 |
| RR Renovations and Maintenance Limited | Construction | 2024 |
| RR Store 22 Limited | Wholesale & retail | 2024 |
| RR Ventures Holdings Limited | Financial services | 2025 |
| RRA Rentals Ltd | Administrative & support | 2025 |
| RRC Care Ltd | Health & social care | 2020 |
| Rricbar Limited | Agriculture & fishing | 2023 |
| Rrkd Varsani Ltd | Hospitality | 2016 |
| RRM Drylining Limited | Construction | 2022 |
| Rrooms Limited | Construction | 2020 |
| RRQ Traders Limited | Wholesale & retail | 2025 |
| RRR Vibe Motors Ltd | Wholesale & retail | 2025 |
| RRS Building and Maintenance Ltd | Construction | 2021 |
| RRT Advisory Ltd | Professional & scientific | 2021 |
| RRT Group Ltd | Construction | 2019 |
| Rrtdfdes Ltd | Manufacturing | 2026 |
| RS & ES Investments Ltd | Wholesale & retail | 2005 |
| RS & KS Consultancy Limited | Health & social care | 2025 |
| RS & PS Property Limited | Real estate | 2016 |
| RS Auto Sales York Ltd | Wholesale & retail | 2020 |
| RS Builders Merchants Ltd | Construction | 2018 |
| RS Confectionery Ltd | Manufacturing | 2023 |
| RS Ecommerce Adventure Limited | Manufacturing | 2025 |
| RS Enterprising Ltd | Real estate | 2024 |
| RS Flux Ltd | Other services | 2024 |
| RS House Limited | Construction | 2020 |
| RS LLC Limited | Administrative & support | 2024 |
| RS Logitech Ltd | Wholesale & retail | 2019 |
| RS Luxury Foods Ltd | Hospitality | 2025 |
| RS Media Services Limited | Wholesale & retail | 2020 |
| RS Moda Ltd | Wholesale & retail | 2025 |
| RS Property 2026 Ltd | Real estate | 2026 |
| RS Restaurants Limited | Hospitality | 2019 |
| RS Shopfitters Limited | Construction | 2026 |
| RS SVR Limited | Wholesale & retail | 2019 |
| RS Winding Services Limited | Professional & scientific | 2018 |
| RS111 Ltd | Real estate | 2023 |
| RS20 Property Limited | Real estate | 2021 |
| RSALARMS10 Limited | Administrative & support | 2025 |
| RSB Investments Limited | Real estate | 2017 |
| RSC Property Group Ltd | Manufacturing | 2022 |
| RSC Removals Ltd | Transport & logistics | 2024 |
| Rsceaobw Mart Ltd | Wholesale & retail | 2025 |
| RSD Consult Ltd | Information & communication | 2018 |
| Rsdk Limited | Health & social care | 2005 |
| RSG Homes Limited | Real estate | 2020 |
| RSG Radiology Ltd | Health & social care | 2011 |
| Rsglo Ltd | Administrative & support | 2020 |
| RSI Acquisition Ltd | Financial services | 2018 |
| RSI Emoney Ltd | Financial services | 2019 |
| RSJ Estates Limited | Real estate | 2024 |
| Rsjj Health Care Ltd | Health & social care | 2023 |
| RSL Building Services (Bathrooms) Ltd | Construction | 2017 |
| RSM Builders Limited | Administrative & support | 2017 |
| Rsmuk Restaurants Ltd | Hospitality | 2020 |
| Rspndr Limited | Administrative & support | 2021 |
| RSR Automobile Ltd | Wholesale & retail | 2018 |
| RSR Miah’S Ltd | Wholesale & retail | 2023 |
| RSR Porsche Concept Ltd | Wholesale & retail | 2021 |
| RSS Group Limited | Extraterritorial | 2009 |
| RSS Group Training Limited | Extraterritorial | 2011 |
| RSS Training & Consultancy Limited | Other services | 2000 |
| Rssw Ltd | Administrative & support | 2020 |
| RST Fire Ltd | Public administration | 2014 |
| RST Recruitment Solutions Ltd | Administrative & support | 2022 |
| Rstb Limited | Wholesale & retail | 2022 |
| Rsvantage Ltd | Real estate | 2018 |
| Rsvp Enterprises Ltd | Real estate | 2025 |
| RSZ Properties Development Ltd | Construction | 2020 |
| RT Building Solutions South Wales Ltd | Construction | 2023 |
| RT Commercials Limited | Wholesale & retail | 2022 |
| RT Construction & Building Ltd | Construction | 2020 |
| RT Expert Consultancy Limited | Construction | 2016 |
| RT Financial Ltd | Other services | 2024 |
| RT Global Trading Ltd | Wholesale & retail | 2025 |
| RT Installation Systems Ltd | Construction | 2025 |
| RT International Trading Ltd | Other services | 2025 |
| RT Motor Group Limited | Wholesale & retail | 2025 |
| RT Paving Limited | Construction | 2019 |
| RT Safety Ltd | Professional & scientific | 2011 |
| RT2NULL Limited | Information & communication | 2023 |
| Rtai UK (Holdings) Limited | Financial services | 2025 |
| RTB Global Ltd | Professional & scientific | 2018 |
| RTB Home Developments Ltd. | Construction | 2017 |
| RTB Investments (Stoke) Limited | Real estate | 2025 |
| RTC Solutions Limited | Health & social care | 2025 |
| RTD Construction Ltd | Construction | 2017 |
| Rtfwcye Mart Ltd | Wholesale & retail | 2025 |
| Rthmm Ltd | Health & social care | 2025 |
| RTJ Engineering Systems Ltd | Manufacturing | 2011 |
| RTJ Housing Ltd | Real estate | 2024 |
| Rtjd Management Ltd | Professional & scientific | 2026 |
| Rtjj Ltd | Education | 2019 |
| RTL Properties Holding Limited | Real estate | 2025 |
| RTL Solicitors Limited | Professional & scientific | 2006 |