| Romanian Land Nominees NO 2 Limited | Financial services | 2007 |
| Romanian Property Deals Limited | Financial services | 2006 |
| Romer Kingsford Ltd | Real estate | 2023 |
| Romney Nominees Limited | Extraterritorial | 1985 |
| Rond Point Limited | Real estate | 2021 |
| Ronnie Farrow's Cleaning Services Ltd | Administrative & support | 2015 |
| Ronnie's RAW Limited | Wholesale & retail | 2024 |
| Roof Testing Solutions Ltd | Professional & scientific | 2025 |
| Roof Tests & Surveys Ltd | Construction | 2021 |
| Roofbuild Limited | Construction | 2019 |
| Roofing First Limited | Construction | 2018 |
| Rookery Estates Company(The) | Real estate | 1946 |
| Rookery Investment Company(The) | Real estate | 1987 |
| Rope Development Limited | Construction | 1980 |
| Roptec Limited | Construction | 2005 |
| Rose & Co Media Ltd | Arts & recreation | 2026 |
| Rose & Co Partners Ltd | Professional & scientific | 2026 |
| Rose Consultancy South East Limited | Construction | 2022 |
| Rose Health Solution Ltd | Education | 2014 |
| Rose Lane Farm Ltd | Arts & recreation | 2025 |
| Rose Maidstone Limited | Administrative & support | 2018 |
| Roseacre Mortgages Ltd | Financial services | 2023 |
| Rosebud Aesthetics Ltd | Other services | 2018 |
| Roselaw Resourcing Limited | Information & communication | 2022 |
| Rosemary's Pies Ltd | Manufacturing | 2022 |
| Rosemount Connect Ltd | Financial services | 2026 |
| Rosen Consulting Limited | Professional & scientific | 1995 |
| Rosestone Investments Limited | Financial services | 2019 |
| Rosewood Carpentry & Building Limited | Construction | 2013 |
| Rosie Apple Limited | Real estate | 2023 |
| Rosser Retail Limited | Wholesale & retail | 2025 |
| Rossi 2010 Ltd | Other services | 2025 |
| Rotawad Limited | Health & social care | 2025 |
| Roughway Farm Ltd | Agriculture & fishing | 2024 |
| Round - 2IT Property Maintenance LLP | | 2010 |
| Round House Renovations Ltd | Construction | 2022 |
| Roundabout Consulting Limited | Information & communication | 2024 |
| Roundhouse Software Limited | Information & communication | 1998 |
| ROV Lease Limited | Administrative & support | 2024 |
| Rovan Services Limited | Transport & logistics | 2020 |
| Rover's Flooring Limited | Wholesale & retail | 1999 |
| Rovi Transport Ltd | Transport & logistics | 2023 |
| ROW Consulting Limited | Professional & scientific | 2026 |
| ROW4TN Limited | Real estate | 2020 |
| Rowantask Limited | Transport & logistics | 1985 |
| Rowena House Limited | Health & social care | 2002 |
| Rowland Recruitment Limited | Administrative & support | 2024 |
| Roxana Sandhar Ltd | Health & social care | 2026 |
| ROY Fraser (Project Management) Limited | Wholesale & retail | 1987 |
| ROY William Ricks Ltd | Information & communication | 2024 |
| Rozi Future Ltd | Wholesale & retail | 2024 |
| RP Construct Ltd | Construction | 2025 |
| RP Dynamics Services Limited | Information & communication | 2021 |
| Rphas Ltd | Real estate | 2022 |
| RPJ Consulting Ltd | Professional & scientific | 2026 |
| RPM (Maidstone) Ltd | Hospitality | 2016 |
| Rppa Ltd | Manufacturing | 2018 |
| RPR Constructions Ltd | Construction | 2020 |
| RR Events Planners Solutions Ltd | Administrative & support | 2017 |
| RR Sparkle Ltd | Other services | 2024 |
| Rrgold Ltd | Manufacturing | 2021 |
| Rroberts Property Limited | Real estate | 2020 |
| RRR Mannar Store Ltd | Wholesale & retail | 2026 |
| RS Active Ltd | Other services | 2021 |
| RS Floors Limited | Construction | 2014 |
| RSC Paint & Resto Ltd | Other services | 2021 |
| Rsweis Limited | Professional & scientific | 2026 |
| RT Neal Limited | Information & communication | 2019 |
| RTC Technical Ltd | Manufacturing | 2017 |
| RTO Management Building Services Ltd | Professional & scientific | 2024 |
| RTP Associates Ltd | Professional & scientific | 2022 |
| Rubi Nails Ltd | Other services | 2025 |
| Ruby Nexus Ltd | Administrative & support | 2026 |
| Ruddy Ltd | Professional & scientific | 2012 |
| Rudi Vizi | Arts & recreation | 2001 |
| Ruggeduk Ltd | Wholesale & retail | 2016 |
| RULE13 Limited | Wholesale & retail | 2012 |
| Rume Official Ltd | Wholesale & retail | 2025 |
| Rumpton Properties LLP | | 2010 |
| Rumwood Court Management Limited | Real estate | 1985 |
| Rumwood Green Farm Ltd | Agriculture & fishing | 2011 |
| Rumwoods Limited | Agriculture & fishing | 2010 |
| Runville Services Ltd. | Administrative & support | 2012 |
| Rupert's Renovations Limited | Construction | 2017 |
| Rural & Business Specialists Limited | Professional & scientific | 2004 |
| Rural Park Estates Limited | Hospitality | 2026 |
| Rural PUB Company Limited | Wholesale & retail | 2013 |
| Rushmoor Developments Limited | Other services | 2001 |
| Rushton Lift Services Ltd | Manufacturing | 2018 |
| Rushup Logistics Limited | Transport & logistics | 2025 |
| Russ Carley Limited | Professional & scientific | 2007 |
| Russell & Heer Limited | Arts & recreation | 2024 |
| Russell Hvac Services Limited | Construction | 2022 |
| Rusthall Lodge Ltd | Education | 2024 |
| Rustrick Accountants Limited | Professional & scientific | 2016 |
| Rusty Belt Ltd | Information & communication | 2026 |
| Ruth Tophill Ltd | Health & social care | 2014 |
| Ruzali Capital Limited | Real estate | 2014 |
| RVH Development (Folkestone) LLP | | 2024 |
| RVL Construction Limited | Construction | 2022 |