| Stones Investments Ltd | Real estate | 2023 |
| Stonesby Court (Leicester) Limited | Households | 1985 |
| Stonesby Investments Limited | Real estate | 2025 |
| Stonesby Services Ltd | Construction | 2009 |
| Stonesby Tyres and MOT Ltd | Wholesale & retail | 2024 |
| Stonesource(Uk)Ltd Limited | Construction | 2016 |
| Stonewater Commercial Limited | Construction | 2003 |
| Stonewater Funding PLC | Financial services | 2012 |
| Stonewater Procurement Limited | Construction | 2010 |
| Stonewood Cars Limited | Wholesale & retail | 2017 |
| Stoney Cove Holdings Limited | Financial services | 2018 |
| Stoney Cove Limited | Wholesale & retail | 2018 |
| Stoney Cove Marine Centre Limited | Professional & scientific | 1977 |
| Stoney Cove Marine Trials Limited | Manufacturing | 1978 |
| Stoney Food & Wine Ltd | Wholesale & retail | 2025 |
| Stoney Ford Brew Co. Ltd | Manufacturing | 2018 |
| Stoneycroft Healthcare Limited | Wholesale & retail | 2012 |
| Stoneycroft Park Hotel Limited | Hospitality | 2004 |
| Stoneyfold Limited | Financial services | 2018 |
| Stoneygate 144 Limited | Other services | 2004 |
| Stoneygate College (Leicester Preparatory School) Limited | Education | 2013 |
| Stoneygate Compliance Ltd | Administrative & support | 2016 |
| Stoneygate Construction Limited | Construction | 2024 |
| Stoneygate Consulting Ltd | Professional & scientific | 2025 |
| Stoneygate Court Limited | Households | 2002 |
| Stoneygate Food Group Limited | Hospitality | 2024 |
| Stoneygate Homes Limited | Real estate | 2022 |
| Stoneygate Hotel Limited | Hospitality | 2018 |
| Stoneygate Investments (Hinckley) Limited | Households | 1964 |
| Stoneygate Learning Ltd | Education | 2020 |
| Stoneygate Mortgages Ltd | Financial services | 2017 |
| Stoneygate Properties Limited | Construction | 2005 |
| Stoneygate Property (LE2) Ltd | Construction | 2019 |
| Stoneygate Property Investments Limited | Real estate | 2019 |
| Stoneygate Property Ltd | Households | 2020 |
| Stoneygate Road Ltd | Households | 2021 |
| Stoneygate Social Housing CIC | Health & social care | 2024 |
| Stoneygate Trading Limited | Wholesale & retail | 2017 |
| Stoneywell Case Management Ltd | Transport & logistics | 2019 |
| Stonton Estates Limited | Real estate | 2025 |
| Stonymarsh Logistics Ltd | Transport & logistics | 2014 |
| Stoods Limited | Manufacturing | 2024 |
| Stoosh Ltd | Agriculture & fishing | 2025 |
| Stop & Snack Limited | Hospitality | 2025 |
| Stop Digging Manchester Limited | Construction | 2022 |
| Stop in the Sticks Limited | Administrative & support | 2017 |
| Stop M Market Ltd | Wholesale & retail | 2025 |
| Stop Save Go Ltd | Wholesale & retail | 2023 |
| Stop Start Clothing Limited | Manufacturing | 2016 |
| Stop Start Fabrics Limited | Manufacturing | 2016 |
| Stor-A-File Limited | Administrative & support | 1977 |
| Storcons Limited | Information & communication | 2024 |
| Store Angel Ltd | Information & communication | 2026 |
| Store Grid Ltd | Wholesale & retail | 2025 |
| Stork Care Ltd | Health & social care | 2023 |
| Stork Pictures UK Limited | Information & communication | 2024 |
| Storm Homecare Limited | Health & social care | 2008 |
| Storm of Leicester Limited | Wholesale & retail | 2019 |
| Stormbird TSS Ltd | Professional & scientific | 2014 |
| Story Imagin-Ory Ltd | Education | 2021 |
| Story Property Services Ltd | Construction | 2019 |
| Storyteller Days Limited | Information & communication | 2023 |
| Stotto 1 Limited | Manufacturing | 2005 |
| Stotto 12 Ltd | Construction | 2018 |
| Stotto Homes Limited | Construction | 2026 |
| Stotto Surfaces Group Limited | Manufacturing | 2026 |
| Stotto Technical Services Limited | Construction | 2026 |
| Stoughton Court Management (Leicester) Limited | Real estate | 2019 |
| Stoughton Court RTM Company Limited | Households | 2011 |
| Stoughton Estates Limited | Real estate | 2023 |
| Stoughton Flats Limited | Households | 1967 |
| Stoughton Grange Smile & Aesthetics Ltd | Administrative & support | 2017 |
| Stoughton Holdings Ltd | Financial services | 2021 |
| Stoughton Investments Limited | Real estate | 2018 |
| STOUGHTON101 Ltd | Real estate | 2020 |
| Stourhead Limited | Health & social care | 2016 |
| Stovecook Ltd | Health & social care | 2020 |
| Stoves of WB Ltd | Financial services | 2016 |
| Stowzi Ltd | Transport & logistics | 2026 |
| Stoyanov 26 Ltd | Transport & logistics | 2026 |
| STP Auto Service Centre Ltd | Wholesale & retail | 2017 |
| STP Green Ltd | Real estate | 2023 |
| STR8GEN Ltd | Professional & scientific | 2025 |
| Strada VIA Shad Ltd | Transport & logistics | 2025 |
| Strafe Studio Ltd | Information & communication | 2026 |
| Straight Drop Couriers Ltd | Transport & logistics | 2019 |
| Straight Drop Records Ltd | Arts & recreation | 2020 |
| Straight Path Tutoring Ltd | Education | 2020 |
| Strait Homes Ltd | Construction | 2021 |
| Strange Byte Software Ltd | Extraterritorial | 2010 |
| Strange Waves Ltd | Information & communication | 2022 |
| Strangebox Limited | Information & communication | 2009 |
| Strat Land & Planning Limited | Professional & scientific | 2017 |
| Strata Engineering Ltd | Construction | 2009 |
| Strata Prop Limited | Real estate | 2015 |
| Strata Sustainability Ltd | Professional & scientific | 2023 |
| Stratedge Projects Ltd | Professional & scientific | 2026 |
| Strategas Limited | Professional & scientific | 2005 |
| Strategen Group Ltd | Wholesale & retail | 2024 |
| Strategic Education Consultancy Ltd | Education | 2009 |