| Rada Property Development Ltd | Real estate | 2026 |
| Rafmat Limited | Health & social care | 2022 |
| Rakatrans Ltd | Transport & logistics | 2018 |
| Ramidi Transport Ltd | Transport & logistics | 2016 |
| Rarr Holdings Limited | Real estate | 2025 |
| Ratecard Technologies Limited | Information & communication | 2023 |
| Ravi Jethwa Ltd | Information & communication | 2025 |
| RAW and Rare Luxe Ltd | Wholesale & retail | 2025 |
| Raytee Ltd | Real estate | 2025 |
| RB Electra Ltd | Construction | 2026 |
| Rb&J Transport Ltd | Administrative & support | 2017 |
| RBS Interiors UK Limited | Construction | 2007 |
| RCC Engineering Limited | Construction | 2026 |
| Rccg House of the Lord South Ockendon Ltd. | Other services | 2022 |
| Reactive Contracts Limited | Construction | 2022 |
| Real Construction RB Limited | Construction | 2023 |
| Real Limit Ltd | Construction | 2023 |
| Realistic Oxlow Lane Services Ltd | Wholesale & retail | 2016 |
| Realmed Limited | Manufacturing | 2012 |
| Rebecca's Bespoke Kitchen Ltd | Hospitality | 2024 |
| Recol Construction Ltd | Construction | 2025 |
| Red Storm Limited | Transport & logistics | 2017 |
| Redeemed Christian Church of GOD - the Promised Land | Other services | 2004 |
| Redfinch Ltd | Wholesale & retail | 2025 |
| Rehoboth Global Placement Solutions Limited | Administrative & support | 2019 |
| Rehoboth Solutions Limited | Administrative & support | 2015 |
| Reliant Moves Contract Logistics Limited | Transport & logistics | 2017 |
| Relicto Ltd | Administrative & support | 2023 |
| Relocate Removal Co. Ltd | Transport & logistics | 2008 |
| Relocate Removals & Storage Ltd | Transport & logistics | 2019 |
| Rens Properties Ltd | Real estate | 2022 |
| Reservino Ltd | Information & communication | 2024 |
| Rev&M Building Services Ltd | Construction | 2019 |
| Reykah Limited | Wholesale & retail | 2010 |
| RF Transport Services Ltd | Transport & logistics | 2024 |
| RG Futures Ltd | Administrative & support | 2025 |
| RGN Transports Limited | Transport & logistics | 2016 |
| RH Technical Ltd | Other services | 2024 |
| Rhaey-Rich Limited | Education | 2018 |
| Richard Deadman Limited | Wholesale & retail | 1960 |
| Ridgeline Group Limited | Hospitality | 2023 |
| Riggie Investments Limited | Real estate | 2026 |
| Riggie Ltd | Professional & scientific | 2023 |
| Rimvis Waste Clearance Ltd | Water & waste | 2023 |
| RIN DAM Ltd | Information & communication | 2022 |
| RIN Digital Ltd. | Information & communication | 2015 |
| Risenshine.Fl Services Limited | Information & communication | 2014 |
| RK RAJ Ltd | Hospitality | 2019 |
| RKB Residential Homes UK Ltd | Real estate | 2025 |
| RKH Logistics Ltd | Wholesale & retail | 2022 |
| Rkjd Building & Maintenance Services Ltd | Construction | 2022 |
| RLW Cricket Ltd | Wholesale & retail | 2022 |
| RMA Engineering Ltd | Construction | 2013 |
| Robin Care Services Ltd | Health & social care | 2019 |
| Robinson and Black Flooring Ltd | Wholesale & retail | 2016 |
| Robscomoh Limited | Construction | 2017 |
| Rohan Corporation Group Ltd | Information & communication | 2025 |
| Rohan Philanthropy Ltd | Education | 2025 |
| Rokay Cleaning Ltd | Construction | 2025 |
| Romas Haulage Ltd | Transport & logistics | 2016 |
| Ronny Services Limited | Wholesale & retail | 2015 |
| Roots Care Ltd | Health & social care | 2023 |
| Rose Gardens (Ockendon) Management Company Limited | Households | 2017 |
| ROSEGOLD4 Ltd | Wholesale & retail | 2022 |
| Rosemoore Landscaping Ltd | Professional & scientific | 2026 |
| Rosie LEA Treats Ltd | Wholesale & retail | 2020 |
| Rosus Car Keys Ltd | Wholesale & retail | 2021 |
| Rota Photo Booth 360 Ltd | Administrative & support | 2025 |
| Rover Engine Works Ltd | Wholesale & retail | 2024 |
| Royne Care Limited | Public administration | 2019 |
| Roza's Cleaning Services Ltd | Administrative & support | 2022 |
| Rp-Scaffoldinguk. Ltd | Construction | 2025 |
| RS Fitting Ltd | Construction | 2019 |
| Rudra Ascend Limited | Real estate | 2026 |
| Rukauto Ltd | Wholesale & retail | 2017 |
| RUS Rendering & Plastering Ltd | Construction | 2023 |
| RW Accounting Services Limited | Professional & scientific | 2022 |
| RX Lords Ltd | Real estate | 2023 |
| Ryan Convenience Store Ltd | Wholesale & retail | 2019 |
| Rykel Commercial Sales Limited | Wholesale & retail | 2019 |
| S & a Transport Engineering Limited | Wholesale & retail | 2004 |
| S & M Quality Builders Limited | Construction | 2010 |
| S & N Property Holdings Limited | Real estate | 2018 |
| S E Equine Group Limited | Real estate | 1963 |
| S E Funeral Plans Consultancy LLP | | 2006 |
| S R B Auto Ltd | Transport & logistics | 2020 |
| S&A's Exchange Ltd | Wholesale & retail | 2023 |
| S&C Public House Limited | Hospitality | 2026 |
| S&E Construction Ltd | Construction | 2016 |
| S&R Haulage Ltd | Construction | 2019 |
| S.A.L. Professional Services Limited | Construction | 2015 |
| S.Lileikis Ltd | Transport & logistics | 2017 |
| S777 Limited | Wholesale & retail | 2020 |
| SA Zembe Social Care Ltd | Health & social care | 2022 |
| Sabm Hassan Ltd | Real estate | 2016 |
| SAI Kwality Group Ltd | Hospitality | 2022 |
| Sak's Fencing & Landscaping Ltd | Construction | 2026 |
| Salvador Interiors Limited | Real estate | 2022 |
| Samakin Enterprises Limited | Other services | 2014 |
| Samflo Properties Limited | Real estate | 2024 |