| Rareglove Inc Ltd | Construction | 2016 |
| RB (Gatwick) Limited | Construction | 2020 |
| RB (Gladstone) Limited | Real estate | 2024 |
| RB Financial Ltd | Financial services | 2021 |
| Rbfw Limited | Financial services | 2015 |
| Rbhm Limited | Construction | 2014 |
| Rebel Colour Limited | Information & communication | 2023 |
| Red Source Global Ltd | Wholesale & retail | 2021 |
| Relationology Ltd | Professional & scientific | 2001 |
| Resonate Creative Ltd | Administrative & support | 2026 |
| Retail Bulletin Events Limited | Administrative & support | 2007 |
| Retired-Bricks Ltd | Wholesale & retail | 2026 |
| RH4 Blackbrook Ltd | Financial services | 2026 |
| RH4 Freehold Ltd | Financial services | 2026 |
| Richard M Brown Ltd | Administrative & support | 2024 |
| Richmond Securities Limited | Real estate | 1975 |
| Rideout Clothing Limited | Wholesale & retail | 2023 |
| Ritevest Limited | Financial services | 2023 |
| RM Publishing Limited | Information & communication | 2016 |
| Rmaac Technologies Ltd | Information & communication | 2024 |
| Robbie Thompson Limited | Information & communication | 2016 |
| Rockmount NW Limited | Professional & scientific | 1981 |
| Ronnie Shaw's Great British Fish and Chips Limited | Hospitality | 2009 |
| Rose Lake Properties Ltd | Real estate | 2024 |
| Rottnest Bidco Limited | Professional & scientific | 2018 |
| Rottnest Holdings Limited | Financial services | 2018 |
| Rottnest Midco Limited | Financial services | 2018 |
| Rowland Properties Ltd | Real estate | 2012 |
| Roxanne Cusack Associates Ltd | Administrative & support | 2017 |
| Royal Berkshire Hotel Limited | Hospitality | 1988 |
| Rsphd Ltd | Information & communication | 2014 |
| Rugbytots Surrey Heath and Borders Limited | Arts & recreation | 2017 |
| Russell Robinson Building & Construction Ltd | Construction | 2024 |
| S & P Strategies Ltd | Other services | 2019 |
| S & R Autos Ltd | Administrative & support | 2012 |
| S J Boyd Plumbing & Heating Ltd | Construction | 2017 |
| S. Sweet Group Ltd | Construction | 2024 |
| S4K Berkshire Ltd | Education | 2022 |
| S4K FC Limited | Arts & recreation | 2016 |
| S4K Franchising Limited | Education | 2003 |
| S4K Hampshire Ltd | Education | 2021 |
| S4K Stafford Ltd | Education | 2023 |
| S4K Surrey Ltd | Education | 2022 |
| Sagana Limited | Manufacturing | 2018 |
| Santiago Care Limited | Health & social care | 2024 |
| Santolina Stables Limited | Arts & recreation | 2012 |
| Scarletpride Limited | Professional & scientific | 1991 |
| SCJ Lettings Ltd | Real estate | 2021 |
| Sdmc Consulting Limited | Information & communication | 1997 |
| Seasons at Sea Ltd | Hospitality | 2022 |
| Secondar Limited | Real estate | 2011 |
| Senario Power Ltd | Construction | 2022 |
| Sense Medical Limited | Wholesale & retail | 2014 |
| Serene Psychiatry Ltd | Health & social care | 2024 |
| Shamzi Ltd | Wholesale & retail | 2018 |
| Shared Equity Partners Limited | Real estate | 2014 |
| SHIFT7 Ltd | Professional & scientific | 2025 |
| Sianellyse Ltd | Health & social care | 2023 |
| Silver Fern Surfaces Ltd | Administrative & support | 2026 |
| Simeng Limited | Wholesale & retail | 2015 |
| Simon Kristall Limited | Information & communication | 2006 |
| Simply Carers Ltd. | Health & social care | 2017 |
| Simply Flute Ltd | Education | 2023 |
| Simplyrely Digital Ltd | Wholesale & retail | 2026 |
| Sixpenny Group Ltd | Construction | 2017 |
| Slate Contracts Limited | Construction | 2022 |
| Slate Projects Limited | Construction | 2022 |
| Slinfold Developments Limited | Construction | 2015 |
| Slinger Limited | Real estate | 2012 |
| SM Consultation Services Ltd | Professional & scientific | 2022 |
| Smitcare Services Ltd | Wholesale & retail | 2016 |
| Smjc Consultancy Ltd | Professional & scientific | 2019 |
| Smoked Apparel Limited | Wholesale & retail | 2024 |
| Snedsongs Ltd | Arts & recreation | 2024 |
| SNM Stuff Online Ltd | Wholesale & retail | 2017 |
| Soul Salon Surrey Ltd | Other services | 2024 |
| South Lodge Limited | Hospitality | 1984 |
| South Meadow Property Ltd | Real estate | 2025 |
| Southdown Plumbing Ltd | Construction | 2025 |
| Space Visuals 3D Ltd | Information & communication | 2018 |
| Sphere Building Solutions Ltd | Real estate | 2023 |
| Sphere Energy Solutions Ltd | Construction | 2010 |
| SPT Logistics Ltd | Transport & logistics | 2018 |
| SR Mello Limited | Professional & scientific | 2025 |
| Srgn Limited | Health & social care | 2023 |
| St&S Consultants Ltd | Professional & scientific | 2026 |
| ST. Anne's Glade Management Company Limited | Households | 1983 |
| Stellfox Ltd | Wholesale & retail | 2024 |
| Stephen Kattau Ltd | Professional & scientific | 2002 |
| Sterling Surveys Limited | Professional & scientific | 1992 |
| Stonehill Management Limited | Households | 2012 |
| Stonewood Lift Consultants Limited | Professional & scientific | 2015 |
| Stonplan Limited | Professional & scientific | 1958 |
| Street Knights Ltd | Hospitality | 2023 |
| Studio Bentley Ltd | Professional & scientific | 2022 |
| Sub-Cool Engineering Ltd | Professional & scientific | 2018 |
| Sub-Cool Service and Maintenance Ltd | Energy | 2021 |
| Subsea Energy Ltd | Professional & scientific | 2022 |
| Success Story Tutoring Ltd | Education | 2025 |
| Sultan Strong Hold Ltd | Wholesale & retail | 2025 |