| Restock Pallets Ltd | Other services | 2023 |
| Retreat on the ROW Ltd | Hospitality | 2019 |
| Retribe Clothing Ltd | Manufacturing | 2023 |
| Retroauto Limited | Other services | 2014 |
| Reuel Services Limited | Professional & scientific | 2024 |
| Revcad Limited | Information & communication | 2007 |
| Revomate Ltd | Real estate | 2024 |
| Reward's Gymnastics Limited | Arts & recreation | 2025 |
| Reymc 247 (PVT) Limited | Health & social care | 2013 |
| RFS Electrical Ltd | Construction | 2026 |
| RH Auto Salvage Ltd | Water & waste | 2023 |
| Rhona Collins Health Consultancy Ltd | Administrative & support | 2021 |
| RHT Motors Company Ltd | Wholesale & retail | 2025 |
| RHT Motors Ltd | Wholesale & retail | 2023 |
| Richard Lavin Electrical Ltd | Construction | 2021 |
| Richdon Joinery & Construction Limited | Construction | 2017 |
| Richdon Limited | Construction | 2017 |
| Richdon Properties Limited | Households | 2019 |
| Ridgeway Courtyard Management Limited | Households | 2018 |
| Ridgeway Electrical Services Limited | Construction | 2006 |
| Rightstart Property Group Ltd | Real estate | 2025 |
| Rimial Investments Ltd | Hospitality | 2015 |
| Rise of Sun Ltd | Wholesale & retail | 2025 |
| Riversoft Ltd | Information & communication | 2024 |
| RJA Food Ltd | Hospitality | 2025 |
| RLS Electrical Ltd | Construction | 2020 |
| RMA Nexus Ltd | Information & communication | 2026 |
| RMS Manufacturing Technology Limited | Manufacturing | 1999 |
| Roacom Ltd | Transport & logistics | 2020 |
| Roadrunner Pubs Ltd | Hospitality | 2025 |
| ROB Garvey Consulting Limited | Other services | 2019 |
| Robf Limited | Wholesale & retail | 2015 |
| Robin Hood Dramatics Limited | Education | 2024 |
| ROM Building Services Ltd | Construction | 2022 |
| Rose & Co Developments Ltd | Construction | 2014 |
| Rose Meadows Maintenance Ltd | Real estate | 2024 |
| Rose Renewables Ltd | Construction | 2023 |
| Rosewall Property Management Limited | Real estate | 2024 |
| Routh Media Limited | Information & communication | 2014 |
| Rovingpod Ltd | Wholesale & retail | 2025 |
| Rowley Enterprise Ltd | Wholesale & retail | 2024 |
| Roya Italian Pizza Ltd | Hospitality | 2026 |
| RS Blinds (Worksop) Limited | Construction | 2026 |
| RS Management Consultancy Limited | Professional & scientific | 2010 |
| RS Refrigeration and Air Conditioning Limited | Manufacturing | 2022 |
| RSM Contact Systems Ltd | Construction | 2018 |
| RT (Yorkshire) Limited | Extraterritorial | 2020 |
| RTR Property Group Ltd | Real estate | 2026 |
| Ruddy Duck Printshop Ltd | Manufacturing | 2025 |
| Rumble Media Ltd | Information & communication | 2011 |
| Runeopal Limited | Wholesale & retail | 2013 |
| Rustique Limited | Other services | 2013 |
| Ryallstone Limited | Construction | 2023 |
| Ryallstone Property Limited | Real estate | 2024 |
| Ryton Electrical Services Limited | Construction | 2009 |
| Ryton Street Food Limited | Wholesale & retail | 2026 |
| S a Motorsport Limited | Manufacturing | 2021 |
| S and J Muen Ltd | Real estate | 2022 |
| S Gardner Limited | Health & social care | 2011 |
| S J G Automotive Ltd | Wholesale & retail | 2021 |
| S P & J Taylor Consultancy Ltd | Professional & scientific | 2018 |
| S R Electrical Solutions & Training Limited | Professional & scientific | 2012 |
| S W Car & Commercial Ltd | Wholesale & retail | 2015 |
| S&S Befriending&Support Limited | Health & social care | 2023 |
| S.A.T.Uk Private Limited | Wholesale & retail | 2025 |
| S.N.Brickworks & Building Ltd | Construction | 2022 |
| S10 Property Services & Developments Ltd | Construction | 2021 |
| S2K Industrial Services Limited | Manufacturing | 2020 |
| S4 Customs Ltd | Wholesale & retail | 2026 |
| S80 Engineering Ltd | Professional & scientific | 2022 |
| S80 Partnership Limited | Information & communication | 2017 |
| SA Whittingham Ltd | Construction | 2015 |
| Safaricode UK Limited | Information & communication | 2024 |
| Safe Direct Ltd | Transport & logistics | 2022 |
| Safe Logistics Transport Ltd | Transport & logistics | 2016 |
| Safeto Limited | Construction | 2022 |
| Salare Management Limited | Real estate | 2016 |
| Salm Group Limited | Professional & scientific | 2021 |
| Salon 77 Limited | Wholesale & retail | 2020 |
| Sama Sizzles Ltd | Hospitality | 2024 |
| Samlen Group Ltd | Financial services | 2018 |
| Samples Express Limited | Extraterritorial | 2000 |
| Samra Medical Services Limited | Health & social care | 2012 |
| Sandbead Limited | Real estate | 1989 |
| Sarjant Construction Limited | Construction | 2024 |
| Sava Distribution Ltd | Transport & logistics | 2017 |
| Savvy Tech Store Ltd | Wholesale & retail | 2018 |
| Sawczyn Chiropractic Ltd | Health & social care | 2011 |
| Sbif Limited | Financial services | 2018 |
| SBN Distribution Services Ltd | Transport & logistics | 2026 |
| Sbpointing Ltd | Construction | 2024 |
| SCE Electrical & Air Conditioning Services Ltd | Construction | 2018 |
| Schnorbitz Limited | Manufacturing | 2019 |
| Schofield GAS and Heating Services Ltd | Construction | 2026 |
| Schutz (U.K.) Limited | Manufacturing | 1989 |
| Scrijoschi Engineering Limited | Professional & scientific | 2021 |
| SD Ceilings and Partitions Ltd | Construction | 2022 |
| SDESTATE78 Ltd | Real estate | 2025 |
| Seallum Electrical Limited | Construction | 1992 |
| Seamless Surface Solutions Ltd | Construction | 2026 |