| STK Fire Ltd | Wholesale & retail | 2026 |
| STM Plumbing & Heating Limited | Other services | 2014 |
| Stoicheiometry Holdings Ltd | Financial services | 2022 |
| Stoicheiometry Ltd | Professional & scientific | 2017 |
| Stone Development and Property Management Ltd | Construction | 2018 |
| Stonefleet Limited | Financial services | 2019 |
| Stoneleigh Lodge Residents Company Limited | Households | 1968 |
| Stopgap Limited | Administrative & support | 2002 |
| Stopgap Trustee Limited | Administrative & support | 2021 |
| Storey Line Studio Ltd | Professional & scientific | 2026 |
| Storm Executive Services Limited | Transport & logistics | 2014 |
| Stormeyseas Limited | Financial services | 2015 |
| Stotfold Indian Takeaway Ltd | Hospitality | 2012 |
| Strachan Whiteoak Limited | Professional & scientific | 2024 |
| Strafghyl Ltd | Households | 2022 |
| Strandwood Limited | Financial services | 2014 |
| Strange Magick Limited | Information & communication | 2010 |
| Strategic Awareness Ltd | Professional & scientific | 2001 |
| Strategio Ltd | Professional & scientific | 2025 |
| Stratos Consultants Limited | Information & communication | 2010 |
| Stratos Technology Limited | Information & communication | 2009 |
| Stratus Recruitment Limited | Administrative & support | 2005 |
| Strawbeck Limited | Hospitality | 2012 |
| Strictly Business Ltd | Professional & scientific | 2009 |
| Strongarm Office Solutions Limited | Construction | 2022 |
| Stubbs Electrical Limited | Construction | 2001 |
| Studea Limited | Information & communication | 2026 |
| Student Galleries Limited | Information & communication | 2024 |
| Studio OE Ltd | Professional & scientific | 2025 |
| Studio OY UK Ltd | Information & communication | 2010 |
| Studio Sorbus&Candide Ltd | Wholesale & retail | 2023 |
| Studio Vision Design Ltd | Professional & scientific | 2016 |
| Studio Westmaas Ltd | Professional & scientific | 2016 |
| STUDIO20 Architecture Ltd | Professional & scientific | 2024 |
| Study Planet Ltd | Education | 2025 |
| Style and Stage Studio Ltd | Administrative & support | 2024 |
| Styled & Staged Interiors Ltd | Professional & scientific | 2024 |
| Stylow Ltd | Professional & scientific | 2017 |
| Stylus Limited | Professional & scientific | 2025 |
| Suada Holdings Limited | Information & communication | 2026 |
| Subset Studios Ltd | Arts & recreation | 2023 |
| Succession Property Limited | Real estate | 2025 |
| Sudbrook Advisory Ltd | Professional & scientific | 2020 |
| Sudbrook School Limited | Education | 2004 |
| Sudranreb Consultancy Ltd | Professional & scientific | 2009 |
| Sufi Retreat Limited | Other services | 2025 |
| Sugarcaine Limited | Other services | 2002 |
| Suite Consultants Limited | Information & communication | 2025 |
| SUK JAI Richmond Thai Massage Ltd | Health & social care | 2025 |
| Sumac Communications Ltd | Professional & scientific | 2026 |
| Sun CUP Ltd | Extraterritorial | 2023 |
| Sun Sky Limited | Administrative & support | 2023 |
| Sun&Lion Ltd | Administrative & support | 2026 |
| Sunbird Stories Ltd | Arts & recreation | 2018 |
| Sunley Farms (Richmond) Limited | Real estate | 1966 |
| Sunrise Investment Opportunities Limited | Real estate | 2014 |
| Sunshades & Shutters Ltd | Manufacturing | 2024 |
| Sunshine & M LLP | | 2025 |
| Supersplint Ltd. | Manufacturing | 2023 |
| Supporting Alternative Finance for Entrepreneurs Management Company Ltd | Financial services | 2024 |
| Supreme Factory Ltd | Information & communication | 2016 |
| Surginew Ltd | Health & social care | 2016 |
| Surgpaed Limited | Health & social care | 2014 |
| Surrey Cardiology Ltd | Health & social care | 2007 |
| Surrey Interiors Hersham Ltd | Financial services | 2009 |
| Surrey Interiors Limited | Wholesale & retail | 1999 |
| Surrey Interiors Projects Ltd | Construction | 2015 |
| Surrey Interiors Walton Limited | Wholesale & retail | 2026 |
| Survey Shack Limited | Information & communication | 2023 |
| Survivor Stories Ltd | Manufacturing | 2026 |
| SVP (SSH) Limited | Financial services | 2017 |
| SW Bicycle Company Limited | Wholesale & retail | 2019 |
| SW London Construction Ltd | Construction | 2019 |
| SW Pro Ltd | Information & communication | 2023 |
| SW Studios Ltd | Arts & recreation | 2025 |
| Swale Auto Sales I Limited | Wholesale & retail | 2021 |
| Swale Auto Sales II Limited | Wholesale & retail | 2021 |
| Swale Auto Sales Ltd | Financial services | 2016 |
| Swale Auto Services Limited | Wholesale & retail | 2021 |
| Swale House F456 Limited | Households | 2021 |
| Swale Life CIC | Information & communication | 2017 |
| Swale Maintenance Services Ltd | Extraterritorial | 2015 |
| Swale Netting Services Limited | Extraterritorial | 1999 |
| Swale Scaffolding (Hire) Ltd. | Extraterritorial | 1998 |
| Swale Scaffolding Hire and Sales Ltd | Construction | 2001 |
| Swale Scaffolding Limited | Construction | 1986 |
| Swale Valley Construction Limited | Construction | 2010 |
| Swale Veterinary Practice Limited | Professional & scientific | 2022 |
| Swale View Caravan Sales Limited | Hospitality | 2004 |
| Swaledale Cottage Concepts Ltd | Wholesale & retail | 2025 |
| Swaledale Leisure Limited | Hospitality | 2020 |
| Swaledale Reclaimed Roofing Supplies Ltd | Construction | 2021 |
| Swaledale Stonemasonry Limited | Construction | 2004 |
| Swaledale Trading Limited | Manufacturing | 2023 |
| Swalehouse Management Limited | Real estate | 2007 |
| Swaleside Projects Limited | Administrative & support | 2025 |
| Swalewoods Ltd | Agriculture & fishing | 2023 |
| Swallowholm Cottages Management Company Limited | Households | 2017 |
| Swaraj Music Limited | Information & communication | 2025 |
| SWB London Ltd | Construction | 2023 |