| Recmat Ltd | Water & waste | 2020 |
| Red Bangla Ltd | Professional & scientific | 2012 |
| Red Button Properties Limited | Real estate | 2017 |
| Red Door Projects Ltd | Real estate | 2023 |
| Red Kite Flutes Limited | Manufacturing | 2017 |
| Red Lion Plaza (Tolworth) Management Company Limited | Real estate | 2019 |
| Red Sonic Limited | Professional & scientific | 2012 |
| Red Sparks Services Ltd | Construction | 2017 |
| Red Squirrel KIT Ltd | Wholesale & retail | 2023 |
| Red Sun Ltd | Transport & logistics | 2024 |
| Redhouse Cleaning & Maintenance Ltd | Extraterritorial | 2021 |
| Redinv Limited | Real estate | 2013 |
| Redkite Property Solutions Ltd | Construction | 2012 |
| Redstam Wellness UK Ltd | Wholesale & retail | 2024 |
| Redstreet Garage (Kent) Limited | Administrative & support | 2003 |
| Redstripes Ltd | Information & communication | 2021 |
| Redtax Accountants Ltd | Professional & scientific | 2017 |
| Redwing Building Services Ltd | Construction | 2013 |
| Redwing Crescent (Greenhithe) RTM Company Limited | Real estate | 2023 |
| Redwood Builders Limited | Construction | 2016 |
| Redwood Rose Ltd | Real estate | 2025 |
| Redwoods Dowling Kerr Limited | Administrative & support | 2026 |
| Reel Production Logistics Limited | Transport & logistics | 2026 |
| Reflections Window Cleaning Ltd | Administrative & support | 2011 |
| Reflekt Cosmetics Ltd | Wholesale & retail | 2025 |
| Refuvo Ltd | Construction | 2025 |
| Regain Physiotherapy Ltd | Health & social care | 2017 |
| Regal United Limited | Construction | 2024 |
| Regay Bahasht Ltd | Education | 2026 |
| Regency Construction Services Ltd | Construction | 2025 |
| Regent Accountants Ltd | Information & communication | 2025 |
| Reggiework Ltd | Construction | 2021 |
| Regiis Roses Limited | Wholesale & retail | 2019 |
| Regus Freight Ltd | Administrative & support | 2025 |
| Rehmat Estates Limited | Real estate | 2024 |
| Rehoboth Care UK Limited | Health & social care | 2024 |
| Rehobothinvest Limited | Health & social care | 2022 |
| Reidware Property (UK) Ltd | Real estate | 2025 |
| Reimant Ltd | Construction | 2019 |
| Reino Limited | Information & communication | 2006 |
| Reiss Finance Ltd | Financial services | 2021 |
| Rejuvenation Clinic Kent Ltd | Other services | 2021 |
| Relarm Ltd | Construction | 2020 |
| Reliable Childcare Services Ltd | Health & social care | 2022 |
| Reliable Innovation 2017 Ltd | Energy | 2016 |
| Reliance Transport Network Limited | Transport & logistics | 2015 |
| Remade Brooks Ltd | Administrative & support | 2020 |
| Remedy Design Ltd | Professional & scientific | 2017 |
| Remeikis Media Ltd | Information & communication | 2026 |
| Remijoke Services Limited | Administrative & support | 2021 |
| Renegare Limited | Information & communication | 2010 |
| Renova Elite Ltd | Construction | 2024 |
| Renovate & Refurb Ltd | Construction | 2016 |
| Renovate Connect Ltd. | Information & communication | 2026 |
| Renovate Global Ltd | Information & communication | 2026 |
| Renovax Ltd | Construction | 2025 |
| Renrock Engineering Limited | Professional & scientific | 2010 |
| Rentals Wilmot Ltd | Hospitality | 2017 |
| Rentana Limited | Construction | 2018 |
| Replay London Limited | Arts & recreation | 2024 |
| Reprise Consulting Limited | Financial services | 2014 |
| Reprise Market Solutions Limited | Information & communication | 2021 |
| RES Orthopaedics Limited | Health & social care | 2020 |
| Reset Remedy CIC | Health & social care | 2025 |
| Residential Rendering Services Ltd | Construction | 2026 |
| Resilience GRC Ltd | Professional & scientific | 2021 |
| Resilient Healthcare Limited | Wholesale & retail | 2024 |
| Resolute Estate Solutions Ltd | Real estate | 2024 |
| Retkin Transport Ltd | Transport & logistics | 2023 |
| Retraite Ltd | Health & social care | 2020 |
| Retro Luxe Rentals Limited | Other services | 2019 |
| Retro Surplus Limited | Wholesale & retail | 2025 |
| Revas Investments Limited | Construction | 2023 |
| Revelen Limited | Administrative & support | 2008 |
| Revenge Will BE Sweet Limited | Other services | 2017 |
| Reviews Inside Ltd | Information & communication | 2025 |
| Revive Flooring Limited | Construction | 2025 |
| Revok CEP Ltd | Real estate | 2022 |
| Revolution Transport Consultancy Limited | Information & communication | 2024 |
| Revscend Ltd | Wholesale & retail | 2024 |
| REX Insight Ltd | Information & communication | 2026 |
| Rexi Construction Ltd | Construction | 2024 |
| Reynolds & Webb Limited | Professional & scientific | 2014 |
| Rezi Painting and Decorating Ltd | Construction | 2020 |
| RF Property Maintenance & Building Limited | Construction | 2014 |
| RFA OBE Investments Ltd | Real estate | 2026 |
| Rfwsales Ltd | Wholesale & retail | 2024 |
| RG Brothers Holdings Limited | Financial services | 2019 |
| RG Cyber Network Ltd | Information & communication | 2021 |
| RG Wall Bind Traders Ltd | Wholesale & retail | 2023 |
| RH Taxis Ltd | Transport & logistics | 2013 |
| RHC & Associates Limited | Other services | 2013 |
| Rhema Enterprise Ltd | Professional & scientific | 2018 |
| RHN Real Estate Ltd | Real estate | 2026 |
| RHP Contracts Ltd | Construction | 2014 |
| RI Kent Ltd. | Administrative & support | 2008 |
| Riaa Limited | Real estate | 2020 |
| Riab Ltd | Transport & logistics | 2025 |
| Riccolo Ltd | Construction | 2025 |
| Rice Woodhead Limited | Arts & recreation | 2008 |