| Revive Associates Limited | Construction | 2010 |
| Rivantis Food Ltd | Hospitality | 2022 |
| RJH Barbers Limited | Administrative & support | 2015 |
| RJH Dynamics Ltd | Information & communication | 2026 |
| RJS Builders Limited | Construction | 2003 |
| Rocon Build Ltd | Construction | 2024 |
| Rocon Contractors Limited | Construction | 1962 |
| Rogers UK Transport Limited | Transport & logistics | 2013 |
| Rollingwithnara Limited | Extraterritorial | 2024 |
| Romani Productions Ltd | Professional & scientific | 2025 |
| Rooted Ways Ltd | Education | 2026 |
| Rosset Properties Limited | Real estate | 2013 |
| Rowan Ashley Limited | Real estate | 2015 |
| RPD Construction Managers Ltd | Construction | 2024 |
| RPM Autotech Ltd | Wholesale & retail | 2024 |
| Rsvp Venues LLP | | 2012 |
| Rubicon IT Limited | Information & communication | 2003 |
| Rutter Consulting Ltd | Professional & scientific | 2021 |
| S & B Recycling Limited | Water & waste | 2011 |
| S B Autos Limited | Wholesale & retail | 2017 |
| S J Barlow Management Ltd | Information & communication | 2016 |
| S.A.P Transport Services Ltd | Transport & logistics | 2023 |
| Salk Properties Limited | Construction | 2017 |
| Santram Sales Limited | Wholesale & retail | 2025 |
| Sapia Limited | Education | 2025 |
| Sapphire HR Ltd | Administrative & support | 2023 |
| Schwarze SPV Holdings Ltd | Real estate | 2025 |
| Screensector Limited | Households | 1998 |
| SD Vans Ltd | Wholesale & retail | 2018 |
| Seaborn Agricultural Services Ltd | Administrative & support | 2024 |
| Seaton Engineering Services Ltd. | Manufacturing | 2015 |
| Sebaktrans Limited | Transport & logistics | 2025 |
| Secret Skin Aesthetics Ltd | Other services | 2024 |
| Securepath Financial Services Limited | Financial services | 2023 |
| SEK IT Consulting Ltd | Information & communication | 2026 |
| SEO for Small Business Ltd | Information & communication | 2024 |
| Serendipity Group Ltd | Information & communication | 2016 |
| SET to Rise Ltd | Hospitality | 2017 |
| Shared Stewardship Ltd | Professional & scientific | 2023 |
| Shelton Communication Services Ltd | Professional & scientific | 2023 |
| Shrimpton Electrical Services Ltd | Construction | 2017 |
| Shuffle Mgmt Ltd | Other services | 2025 |
| Sian Perham Consultancy Ltd | Administrative & support | 2011 |
| Sifire Ltd | Information & communication | 2021 |
| Sikdar Consulting Ltd | Professional & scientific | 2012 |
| Sikdar Medical Ltd | Wholesale & retail | 2020 |
| Silver Birch Sauna Ltd | Health & social care | 2026 |
| Silver Lining Partners Limited | Professional & scientific | 2011 |
| Simavia Limited | Transport & logistics | 2023 |
| Simbas Treats Ltd | Extraterritorial | 2023 |
| Simply Day Services Limited | Arts & recreation | 2005 |
| Simply Seven Limited | Professional & scientific | 2016 |
| Sirius Transport Consultancy Ltd | Transport & logistics | 2021 |
| SIX Wallst Limited | Information & communication | 2021 |
| Sizzling Kitchen Catering Ltd | Hospitality | 2018 |
| Skylight Consulting Limited | Professional & scientific | 2020 |
| SLI Worldwide Services Ltd | Transport & logistics | 2019 |
| Slipstream Sports Limited | Hospitality | 2022 |
| SM Respite Services Ltd Ltd | Professional & scientific | 2024 |
| Smiley Bespoke Ltd | Manufacturing | 2024 |
| Smith Engineering Consultancy Limited | Professional & scientific | 2014 |
| Smithco Holdings Ltd | Financial services | 2023 |
| SN Garage Ltd | Manufacturing | 2017 |
| Soccer Strikers Limited | Extraterritorial | 2011 |
| Sole and Luna Ltd | Wholesale & retail | 2019 |
| Solutions 4 Science Limited | Professional & scientific | 2005 |
| Sophax Consulting Limited | Information & communication | 2010 |
| Sourceshift Consulting Ltd | Administrative & support | 2025 |
| Sowers Ministries International | Other services | 2014 |
| Sparrow Healthcare Consulting Limited | Professional & scientific | 2019 |
| Spots and Stripes Design Ltd | Wholesale & retail | 2011 |
| Square Box Limited | Professional & scientific | 2007 |
| Sreeven Estates Ltd | Real estate | 2022 |
| SSL Environmental Group Ltd | Manufacturing | 2026 |
| ST. Mary's Mews (Bramley) Management Co. Limited | Households | 1989 |
| Stacey Developments Limited | Real estate | 1969 |
| Stanley Services Limited | Real estate | 2003 |
| Stats (Hampshire) Ltd | Real estate | 2023 |
| Stephen Reid Home Improvements Ltd | Construction | 2022 |
| Sthomp Ltd | Construction | 2020 |
| Stott Ltd | Real estate | 2020 |
| Stove World UK Limited | Wholesale & retail | 2009 |
| Strategic Spark Ltd | Professional & scientific | 2017 |
| Strela Advisory Limited | Professional & scientific | 2017 |
| Strods Transport Services Ltd | Transport & logistics | 2024 |
| Stuart Melrose Limited | Professional & scientific | 2008 |
| Studio of Screams Ltd | Information & communication | 2025 |
| Stuxie Ltd | Professional & scientific | 2021 |
| SUBC.24 Limited | Administrative & support | 2024 |
| Summit Automation and Security Limited | Administrative & support | 2022 |
| Sunflower Kids Childminding Ltd | Health & social care | 2025 |
| Sunny Distribution Ltd | Transport & logistics | 2018 |
| Super Needs Ltd | Construction | 2015 |
| SW Transport Planning Ltd | Professional & scientific | 2017 |
| SWC Design - Build Ltd | Professional & scientific | 2021 |
| Sweet Analytics Limited | Information & communication | 2018 |
| Swiftprofile Ltd | Information & communication | 2021 |
| Swoft Enterprises Limited | Professional & scientific | 2021 |
| Sylkenja Limited | Extraterritorial | 2011 |
| T.T Accounting Limited | Financial services | 2022 |