| RGS Screeding Limited | Construction | 2023 |
| RGV Marketing Ltd | Wholesale & retail | 2020 |
| RH Roofing & Renovation Ltd | Construction | 2025 |
| RH1 Investment Ltd | Real estate | 2025 |
| RHG Gill Transport Ltd | Transport & logistics | 2024 |
| RHI Brit Music Limited | Information & communication | 2022 |
| RHI Consultants Limited | Other services | 2023 |
| RHI Home Improvements Limited | Construction | 2021 |
| Rhma Ltd | Wholesale & retail | 2025 |
| Rhmk Investments Limited | Real estate | 2024 |
| RHS Real Estates Ltd | Real estate | 2024 |
| RIA Superstores Limited | Wholesale & retail | 2013 |
| Riad Art Ltd | Wholesale & retail | 2025 |
| Rialto Group Limited | Hospitality | 2024 |
| Riana Finance Limited | Financial services | 2019 |
| Riangel Ltd | Wholesale & retail | 2025 |
| Rianna Services Ltd | Manufacturing | 2025 |
| Riaz Medical Group Ltd | Health & social care | 2023 |
| Richdad,S Electrical Contractor Ltd | Construction | 2026 |
| Richie Fixing Ltd | Construction | 2019 |
| Richmond Capital Investments Ltd | Real estate | 2024 |
| Richmond Realty Ltd | Real estate | 2025 |
| Richmond Room Service Limited | Professional & scientific | 2012 |
| Riciclo Limited | Water & waste | 2022 |
| Rickard & Sproule Limited | Professional & scientific | 2013 |
| Ricky Constructions Limited | Construction | 2020 |
| Ricky Properties Limited | Real estate | 1995 |
| Ride 4 Riders Ltd | Transport & logistics | 2023 |
| Rides Vinyl Graphix Ltd | Manufacturing | 2025 |
| Ridgeway News Ltd | Wholesale & retail | 2023 |
| Rifa Concierge Ltd | Administrative & support | 2021 |
| Righi Clothing Limited Limited | Wholesale & retail | 2025 |
| Right Path Kitchens & Wardrobes Ltd | Construction | 2025 |
| Right Price (Wholesale) Limited | Wholesale & retail | 1999 |
| Rightline Services Limited | Transport & logistics | 2016 |
| Rightprice Enterprises Limited | Wholesale & retail | 2007 |
| Rights of Light CAD Services Ltd | Construction | 2013 |
| Rightway Care Ltd | Health & social care | 2020 |
| Riha Transport Ltd | Transport & logistics | 2020 |
| Rihan Private Ltd | Wholesale & retail | 2017 |
| Rimedi Media Limited | Information & communication | 2020 |
| Rimex Ltd | Wholesale & retail | 2025 |
| Ring Ring Wholesale Limited | Wholesale & retail | 2025 |
| RING4MOVES Ltd | Transport & logistics | 2026 |
| Ringo Suits Collection Ltd | Wholesale & retail | 2025 |
| Ringpuff Limited | Wholesale & retail | 2024 |
| Rinku Enterprises (UK) Limited | Wholesale & retail | 2012 |
| RIO Berries Limited | Hospitality | 2025 |
| Ripandeep Singh Ltd | Construction | 2016 |
| Ripcurl Fabrications Ltd | Manufacturing | 2025 |
| Rira Games Ltd | Information & communication | 2026 |
| Rise & Sky Limited | Real estate | 2025 |
| Risedge Construction Ltd | Construction | 2025 |
| Rising Kare Ltd | Health & social care | 2021 |
| Rising Paths Childrens Homes Limited | Health & social care | 2026 |
| Risk Analysis and Modelling Ltd | Financial services | 2019 |
| Risomix Digital Educ Ltd | Information & communication | 2025 |
| Ritu Hair & Beauty Saloon Limited | Other services | 2018 |
| Riva Bowl Limited | Arts & recreation | 2008 |
| Riva Bowl LLP | | 2007 |
| Riverland Logistics Ltd | Wholesale & retail | 2025 |
| Riverside Transport Ltd | Wholesale & retail | 2018 |
| Rizilient Health Ltd | Health & social care | 2022 |
| RJ & S Properties Ltd | Real estate | 2024 |
| RJ and BKJ Properties Ltd | Real estate | 2022 |
| RJ Express Limited | Real estate | 2025 |
| RJ Majha Roofing Ltd | Construction | 2025 |
| RJ Mullen Services Ltd | Manufacturing | 2025 |
| RJ Residential Investment Ltd | Real estate | 2026 |
| RJ7 Ltd | Wholesale & retail | 2018 |
| RJM Digital Solutions Limited | Information & communication | 2016 |
| RJP Catering Ltd | Hospitality | 2025 |
| RJR UK Investment Ltd | Real estate | 2023 |
| RK Carpets & Flooring Ltd | Wholesale & retail | 2025 |
| RK Construction Global Limited | Construction | 2013 |
| RK Construction Ltd | Construction | 2018 |
| RK Gill Ltd | Real estate | 2025 |
| RK Glass and Glazing Ltd | Construction | 2017 |
| RK Imports Ltd | Wholesale & retail | 2024 |
| RKB UK Investments Limited | Real estate | 2021 |
| Rkmd Property Investments Ltd | Real estate | 2026 |
| RKP Ltd. | Real estate | 2015 |
| RKT Build Limited | Construction | 2022 |
| RL Site Services Ltd | Real estate | 2017 |
| RLH Enterprises Ltd | Financial services | 2023 |
| RM Advisory Group Ltd | Professional & scientific | 2026 |
| RM Properties & Estates Limited | Real estate | 2024 |
| Rmahal Ltd | Other services | 2012 |
| Rmgk Construction Limited | Construction | 2016 |
| Rminvest Ltd | Real estate | 2022 |
| RMK Transport Solutions Ltd | Transport & logistics | 2022 |
| RMS Ceilings Ltd | Construction | 2019 |
| RMS Corporation Ltd | Hospitality | 2021 |
| RMS Housing Ltd | Hospitality | 2025 |
| RMS Overseas Ltd | Wholesale & retail | 2026 |
| RMS Taverns Ltd | Hospitality | 2025 |
| RN Cosmetics Ltd | Wholesale & retail | 2021 |
| RNK Solutions Ltd | Construction | 2025 |
| Rnrcars West London Limited | Extraterritorial | 2016 |
| Road Boss Ltd | Wholesale & retail | 2024 |