| Rockford Capital Limited | Professional & scientific | 2017 |
| Rockporth Ltd | Real estate | 2024 |
| Roger Lewis Furniture Company Limited | Manufacturing | 1988 |
| Roger Morgan Limited | Extraterritorial | 2013 |
| Roger Raymond Investments Limited | Financial services | 2021 |
| Rogers Developments Southern Ltd | Construction | 2021 |
| Roleplay Properties Limited | Administrative & support | 1987 |
| Romanzo Limited | Hospitality | 2023 |
| Romeo One Zero Ltd | Extraterritorial | 2020 |
| Room Contracts Holdings Limited | Financial services | 2023 |
| Root Networks Ltd | Information & communication | 2026 |
| Rootbud Limited | Real estate | 1980 |
| Rosary Property Ltd | Real estate | 2025 |
| Rose Petal Aesthetics Ltd | Other services | 2020 |
| Rosecroft Services Limited | Construction | 2003 |
| Rosemount London Ltd | Financial services | 2020 |
| Rosida Gardens RTM Company Limited | Real estate | 2011 |
| Roskilly Trading Limited | Hospitality | 2024 |
| Rotax Property Investments Limited | Real estate | 2024 |
| Rouse New Homes Limited | Construction | 2011 |
| Route Secure Limited | Construction | 2017 |
| RRI Holdco 1 Limited | Real estate | 2025 |
| RRI Newco B Limited | Financial services | 2025 |
| RS Energy Limited | Professional & scientific | 2019 |
| Rscp Limited | Professional & scientific | 2014 |
| Rufus (New Forest) Ltd | Construction | 2011 |
| Russell Tonks Independent Financial Advice Limited | Financial services | 2013 |
| Rustic Direct Limited | Manufacturing | 2023 |
| RWI Investments Limited | Professional & scientific | 2024 |
| Ryan J Barnett & Associates Ltd | Professional & scientific | 2012 |
| S & M Hornchurch Catering Limited | Hospitality | 2019 |
| S L Myatt Consulting Limited | Professional & scientific | 2016 |
| S M Brown Fabrications Limited | Manufacturing | 2016 |
| S P Phillips Electrical Ltd | Construction | 2026 |
| S Rodway Associates Limited | Professional & scientific | 2010 |
| S&B Business Services Ltd | Other services | 2017 |
| Sabrom Clinical Ltd | Health & social care | 2022 |
| Sacred Inner Space Ltd | Health & social care | 2016 |
| Safe Summit Solutions Ltd | Administrative & support | 2024 |
| Saith Limited | Professional & scientific | 1999 |
| Sala Solutions Limited | Hospitality | 2017 |
| Salden Groundworks Ltd | Administrative & support | 2023 |
| Salisbury View SPV Limited | Construction | 2014 |
| Salsadev Ltd | Information & communication | 2026 |
| Salt Real Estate Ltd | Real estate | 2021 |
| Salthaven Management Company Ltd | Households | 2021 |
| SAM International Ltd | Hospitality | 2018 |
| Samphire Management Limited | Households | 2025 |
| Samyu Trading Ltd | Wholesale & retail | 2025 |
| Sandbanks Court Limited | Households | 2007 |
| Sandbanks Security Limited | Administrative & support | 2025 |
| Sandersons Property Management Limited | Real estate | 2003 |
| Sandpiper Mortgages Ltd | Financial services | 2018 |
| Sapier Watches Ltd | Wholesale & retail | 2023 |
| Sapphire 1 Properties Limited | Real estate | 2015 |
| Sapphire Lincoln Limited | Professional & scientific | 1999 |
| SAS Construction Consultancy Ltd | Construction | 2015 |
| Satori Property Investment Ltd | Real estate | 2022 |
| Saulfland Gardens Company Limited | Households | 1971 |
| SBN Business Services Ltd | Professional & scientific | 2015 |
| Scalable Finance Limited | Information & communication | 2008 |
| Scarlet Hawk Ltd | Information & communication | 2015 |
| Scarlet Martin Ltd | Professional & scientific | 2021 |
| Scarletts Properties Limited | Real estate | 2025 |
| SCB Engineering Limited | Manufacturing | 2013 |
| SCF Holdings Ltd | Administrative & support | 2016 |
| SCI2 Solutions Ltd | Professional & scientific | 2017 |
| Scollards Aurora Ltd | Real estate | 2025 |
| Scollards HMS Limited | Real estate | 2014 |
| Sdpr Consulting Ltd | Administrative & support | 2025 |
| Sea Stone Construction Services Ltd | Construction | 2019 |
| Seacht Holdings Limited | Financial services | 2020 |
| Seafield Mortgages Ltd | Financial services | 2017 |
| Seaforth Services Limited | Manufacturing | 2000 |
| Seaquest Excursions Ltd | Agriculture & fishing | 2022 |
| Search Property Limited | Administrative & support | 2024 |
| Seashells RTM Limited | Households | 2009 |
| Seaview Restaurants Limited | Hospitality | 2003 |
| SEB Property Maintenance Ltd | Construction | 2023 |
| Seba Hydrometry Limited | Professional & scientific | 1997 |
| Sebargot Limited | Professional & scientific | 2024 |
| Second Life EV Batteries Ltd | Professional & scientific | 2019 |
| Self Build Limited | Real estate | 2007 |
| Sense IT Support and Cyber Limited | Information & communication | 2022 |
| Sentinel (Shrewsbury) Ltd | Professional & scientific | 2021 |
| Sentinel Data Solutions Limited | Information & communication | 2016 |
| Sergejenkovs-Telford Group Ltd. | Hospitality | 2019 |
| Serplicity Ltd | Professional & scientific | 2022 |
| Sethos Bespoke Catering Services Ltd | Hospitality | 2025 |
| Sett Wind Development Limited | Financial services | 2017 |
| Seven Goals Ltd. | Professional & scientific | 2016 |
| Seventeen Wealth Ltd | Professional & scientific | 2019 |
| Sevilpeach Limited | Administrative & support | 2015 |
| SGM Light UK Limited | Wholesale & retail | 2014 |
| SH Recruitment & HR Solutions Ltd | Professional & scientific | 2009 |
| SH Woodhouse Surveying Ltd | Professional & scientific | 2024 |
| Shady Bower (Salisbury) Residents Association Limited | Households | 1963 |
| Shakara Hospitality Ltd | Hospitality | 2024 |
| Shake Express Limited | Extraterritorial | 2003 |
| Shake Xpress Limited | Extraterritorial | 2003 |