| Stevron Property Ltd | Real estate | 2026 |
| Stewart Reynolds Services Ltd | Real estate | 2017 |
| STG Consultancy Ltd | Administrative & support | 2021 |
| Sticky Productions Ltd | Arts & recreation | 2025 |
| Stirling Seymour Ltd | Construction | 2026 |
| Stlc Management Company Limited | Households | 2020 |
| STN Properties Limited | Real estate | 2018 |
| Stock Wizards Limited | Wholesale & retail | 2006 |
| Stockbury Ltd | Administrative & support | 2004 |
| Stockwell Property Letting Ltd | Real estate | 2024 |
| Stoke Orchard Hub Ltd | Arts & recreation | 2021 |
| Stokeford Grid Co Limited | Energy | 2021 |
| Stokeford JV Co Limited | Financial services | 2019 |
| Stokeford Solar Limited | Energy | 2019 |
| Stokes-Vega Dental Care Limited | Health & social care | 2010 |
| Stollards Close Management Company Limited | Administrative & support | 2018 |
| Stone and Oak Homes (Cirencester) Ltd | Real estate | 2025 |
| Stone and Oak Homes Ltd | Real estate | 2024 |
| Stone Barn Cars Limited | Financial services | 2019 |
| Stone Barn Consulting Ltd | Administrative & support | 2016 |
| Stone Building & Joinery Ltd | Construction | 2017 |
| Stone Crescent Management Ltd | Households | 2025 |
| Stone Cross Consulting Limited | Professional & scientific | 2010 |
| Stone Manor Construction Limited | Construction | 2014 |
| Stone of Help Apartments Ltd | Real estate | 2025 |
| Stone Steet Machines Ltd | Manufacturing | 2024 |
| Stonehaven Party Events Limited | Wholesale & retail | 2025 |
| Stonehouse Commercial Vehicles Ltd | Wholesale & retail | 2026 |
| Stonehouse Court Amenity Limited | Households | 2000 |
| Stonehouse Court Hotel Limited | Hospitality | 2011 |
| Stoneleigh (Parabola Road) Management Company Limited | Extraterritorial | 1984 |
| Stonemasons of Cheltenham Ltd | Manufacturing | 2020 |
| Stonewell Bathrooms Ltd | Construction | 2026 |
| Storacall (Tele Acoustics) Limited | Manufacturing | 1976 |
| Storage and Distribution Limited | Wholesale & retail | 2022 |
| Storage Solutions (MGA) Limited | Transport & logistics | 2015 |
| Stordis Ltd | Wholesale & retail | 2017 |
| Store 06 Coffee Limited | Hospitality | 2026 |
| Storm Communications Limited | Real estate | 1993 |
| Storm EMC Services Limited | Information & communication | 2003 |
| Storme London Limited | Transport & logistics | 2016 |
| Stormside Limited | Real estate | 2008 |
| Stormtree Consulting Limited | Professional & scientific | 2012 |
| Stormtree Holdings Limited | Real estate | 2026 |
| Stormtree Property Group Limited | Real estate | 2026 |
| Story First Productions Ltd | Information & communication | 2021 |
| Storyteller Events Limited | Hospitality | 2021 |
| Stour Seafaring Company Limited | Agriculture & fishing | 2018 |
| Stow Holidays Ltd | Real estate | 2025 |
| Stow Physio Limited | Health & social care | 2014 |
| Stowe Gallery Limited | Households | 2018 |
| Stowell Park Estate Limited | Agriculture & fishing | 1987 |
| Straight and Bright Dental Limited | Health & social care | 2007 |
| Straight Back Physiotherapy Ltd | Health & social care | 2025 |
| Straight Line Studio Limited | Manufacturing | 2022 |
| Straight UP Scaffolding and Rigging Ltd | Construction | 2019 |
| Strainsert Limited | Extraterritorial | 1987 |
| Strata Aerospace Ltd | Professional & scientific | 2014 |
| Strata Construction Consulting UK Limited | Administrative & support | 2010 |
| Stratava UK Ltd | Wholesale & retail | 2024 |
| Strategic Alignment Partners Limited | Professional & scientific | 2022 |
| Strategic Safety Systems Ltd | Administrative & support | 2000 |
| Strategic Workforce Group Ltd | Education | 2025 |
| Strategis Developments Limited | Professional & scientific | 2002 |
| Stratford House (Suffolk Square) Management Company Limited | Real estate | 2005 |
| Stratford House Management Company Limited | Real estate | 2001 |
| Strathcona Limited | Professional & scientific | 2021 |
| Strathouse Global Ltd | Wholesale & retail | 2025 |
| Stratten Partners Limited | Professional & scientific | 2014 |
| Stratton Court Apartments Ltd | Real estate | 2018 |
| Stratton Court Village (Cirencester) Management Company Limited | Real estate | 2017 |
| Stratus Wealth Global Ltd | Professional & scientific | 2026 |
| Strawberry Sofa Limited | Arts & recreation | 2004 |
| Streamz Solutions Ltd | Wholesale & retail | 2023 |
| Strebor Fire & Security Systems Limited | Professional & scientific | 1983 |
| Street Burger Ltd | Hospitality | 2025 |
| Streets Ahead Homes Limited | Households | 2022 |
| Streetwise 365 Limited | Administrative & support | 2017 |
| Streetwise Education Limited | Education | 2023 |
| Strictly Mortgages Limited | Financial services | 2016 |
| Stride Associates Limited | Information & communication | 1989 |
| Striim UK, Ltd | Information & communication | 2022 |
| String Crafts Ltd | Wholesale & retail | 2023 |
| Striped Circle Limited | Wholesale & retail | 2023 |
| Stripy Hippo Consulting Limited | Professional & scientific | 2025 |
| Strong Drinks Limited | Manufacturing | 2024 |
| Stroud Beresford Limited | Health & social care | 2004 |
| Stroud Festival of Food and Drink CIC | Arts & recreation | 2022 |
| Stroud Road Gloucester Management Company Limited | Households | 1972 |
| Stroudwater Redevelopment Partnership Limited | Real estate | 1999 |
| Strs Online LLP | | 2025 |
| Strydom Enterprises Limited | Financial services | 2007 |
| STS Fitness Limited | Arts & recreation | 2012 |
| STS Industries Limited | Administrative & support | 2014 |
| Stuart Ballantyne Consultancy Limited | Professional & scientific | 2012 |
| Stuart Nelson Associates Limited | Health & social care | 2012 |
| Student Accommodation in Cheltenham Limited | Real estate | 2013 |
| Student Gaffs Limited | Real estate | 2016 |
| Student Networker Ltd | Information & communication | 2014 |
| Studio 88 Bespoke Bathrooms Ltd | Construction | 2025 |