| Roger Russell DOP Ltd | Administrative & support | 2024 |
| Rohit Patel Ltd | Information & communication | 2014 |
| Roika Facades Limited | Construction | 2019 |
| Rokeby Johnson Baars LLP | | 2003 |
| Rokeby Johnson Baars Solicitors Limited | Professional & scientific | 2013 |
| Roll in Trade Ltd | Construction | 2021 |
| Romania Express Ltd | Wholesale & retail | 2023 |
| Romi Estate Ltd | Real estate | 2025 |
| Romi Health Care Ltd | Health & social care | 2021 |
| Romlin Healthcare Ltd | Health & social care | 2014 |
| Rondesall Support Services Ltd | Health & social care | 2019 |
| Rooh Parfums Ltd | Manufacturing | 2022 |
| Roots Solutions Ltd | Health & social care | 2025 |
| Rosamonds Letting Ltd | Real estate | 2012 |
| Rose Evans Ltd | Wholesale & retail | 2018 |
| Rose Gardening Services Limited | Administrative & support | 2020 |
| Rose Hill Property Company Limited | Real estate | 2003 |
| Rose Specialist & Performance Ltd | Wholesale & retail | 2016 |
| Rosefern Holdings Limited | Real estate | 2024 |
| Roseville (Moreton-In-Marsh) Limited | Real estate | 2007 |
| Rosewood & Pearl Ltd | Other services | 2025 |
| Ross Jones Digital Ltd | Professional & scientific | 2018 |
| Ross Marshall Studio Ltd | Information & communication | 2024 |
| Rossetti House (NW8) Freehold Company Limited | Households | 2012 |
| Rotary Parking Systems Limited | Manufacturing | 2018 |
| Rothersthorpe Nursery Limited | Education | 2004 |
| Roundhill Farm Barns Limited | Households | 2009 |
| Roundhill View (Haddenham) Management Company Limited | Households | 2014 |
| Routes Into Construction Limited | Wholesale & retail | 2021 |
| Rovema Packaging Machines Limited | Manufacturing | 1985 |
| Rowan Cottage Management Company Limited | Households | 2004 |
| Rowan Property Investments Ltd | Real estate | 2022 |
| Rows London Limited | Manufacturing | 2020 |
| Roxanna Francesca Designs Limited | Professional & scientific | 2023 |
| Roxylight Holdings Limited | Construction | 1996 |
| Roxylight Project Services (Nottingham) Limited | Construction | 2008 |
| ROY Consulting Ltd | Information & communication | 2019 |
| ROY Dube Limited | Health & social care | 2015 |
| Royal Air Force Halton Aeroplane Club Limited(The) | Arts & recreation | 1981 |
| Royce Compliance Consultancy Limited | Professional & scientific | 2017 |
| Royicafresh Ltd | Wholesale & retail | 2025 |
| Royl Specs Ltd | Wholesale & retail | 2024 |
| Roylands Property Investments Limited | Real estate | 2025 |
| RP Koza Ltd | Wholesale & retail | 2024 |
| RP Pharma Consulting Ltd. | Professional & scientific | 2016 |
| RP Shutters & Blinds Ltd | Manufacturing | 2026 |
| RP Support Limited | Manufacturing | 2008 |
| RPC Commercial Services Limited | Professional & scientific | 2022 |
| RR Team Ltd | Construction | 2021 |
| RS Assets Ltd | Real estate | 2023 |
| RS Electrical Solutions Ltd | Construction | 2015 |
| RS IT Solutions Ltd | Information & communication | 2025 |
| RSA Belnas Limited | Financial services | 2025 |
| RSL Fashion UK Limited | Wholesale & retail | 2025 |
| RSP Transport Ltd | Transport & logistics | 2018 |
| RSS Infosys Ltd | Information & communication | 2025 |
| RSS Infotech Ltd | Information & communication | 2015 |
| RST Mini Mart Limited | Extraterritorial | 2015 |
| RSW Finance Limited | Financial services | 2011 |
| RSW Re-Trimming Ltd | Other services | 2018 |
| RTD Solution Ltd | Transport & logistics | 2026 |
| RTS Retail Ltd | Wholesale & retail | 2022 |
| RTW Properties Limited Liability Partnership | | 2006 |
| Rubicon Advisors Ltd | Professional & scientific | 2026 |
| Ruby Lane Limited | Other services | 2016 |
| Rudgley Engineering Ltd | Manufacturing | 2012 |
| Rudra Properties Limited | Real estate | 2019 |
| Rugrats (Cirencester) Limited | Other services | 2018 |
| Rugrats and Half Pints Ltd | Arts & recreation | 2006 |
| Rugrats Nursery Cirencester Limited | Education | 2018 |
| Rule Business Solutions Limited | Administrative & support | 1997 |
| Ruleo & Partners Limited | Professional & scientific | 2021 |
| Rumpo Ltd | Construction | 2023 |
| Rumsey's Hand-Made Chocolates Limited | Manufacturing | 2003 |
| Runaway Adventures Limited | Arts & recreation | 2017 |
| Rupla Industries (UK) Limited | Administrative & support | 1998 |
| Ruponti Limited | Wholesale & retail | 2024 |
| Rural Reputations Ltd | Construction | 2022 |
| Rusash Enterprise Ltd | Health & social care | 2026 |
| Russel Properties Ltd | Real estate | 2025 |
| Russell Court Residents Association (Aylesbury) Limited | Households | 1992 |
| Russell Warren Construction Limited | Construction | 2018 |
| Rustic Vibe Industrial Ltd | Manufacturing | 2022 |
| Rusty Lights Limited | Information & communication | 2023 |
| Rutheresy International Ltd | Administrative & support | 2024 |
| Ruwnomi Limited | Real estate | 2026 |
| RV 1978 Limited | Health & social care | 2004 |
| RVK LET Management Ltd | Real estate | 2024 |
| Rvma Property Ltd | Real estate | 2024 |
| RWA Consulting Engineers UK Limited | Professional & scientific | 2023 |
| RWA EOT Trustee Limited | Other services | 2024 |
| RWK Properties Ltd | Real estate | 2018 |
| Rwtann Lighting Ltd | Information & communication | 2013 |
| Ryan P Carpentry Limited | Construction | 2019 |
| Ryanav Ltd | Wholesale & retail | 2025 |
| Rycote Apartments Ltd | Real estate | 2015 |
| Rycote Dental Practice Ltd. | Health & social care | 2007 |
| Rycote Place (Aylesbury) Management Company Limited | Households | 2007 |
| Rycraft Ltd | Extraterritorial | 2020 |
| Rydalbrook Management Limited | Real estate | 1995 |