| SSM Property Development Ltd | Real estate | 2023 |
| SSN Builders Ltd | Construction | 2025 |
| SSN1 Ltd | Professional & scientific | 2025 |
| Ssoosh Inns Limited | Hospitality | 2004 |
| SSP (Leicester) Limited | Real estate | 2005 |
| SSP Property Ltd | Real estate | 2024 |
| Sspr Taverns Ltd | Hospitality | 2026 |
| SSR Builders Ltd | Construction | 2020 |
| SSR Invest Ltd | Real estate | 2024 |
| SSS Home Construction Ltd | Construction | 2022 |
| SSS Investments Global Ltd | Real estate | 2023 |
| SSS Properties Investment Ltd | Real estate | 2025 |
| SSS Recruitment Group Ltd | Administrative & support | 2025 |
| SSS Scaffolding and Roofing Ltd | Construction | 2023 |
| SSS Taxis Ltd | Transport & logistics | 2025 |
| SSS UK Investments Ltd | Financial services | 2023 |
| SSS13 Limited | Real estate | 2017 |
| Ssss Flooring Ltd | Transport & logistics | 2024 |
| SST Electrical Ltd | Construction | 2019 |
| SST Solutions Ltd | Construction | 2019 |
| SSV UK Properties Limited | Real estate | 2025 |
| Sszm Ltd | Professional & scientific | 2025 |
| ST Andrews Services (Leicester) Limited | Wholesale & retail | 2019 |
| ST Cakes Ltd | Financial services | 2023 |
| ST Clair Consultancy Ltd | Professional & scientific | 2025 |
| ST Contracting Services Ltd | Professional & scientific | 2017 |
| ST Crispin's School (Leicester) Limited | Education | 2001 |
| ST Dental Ltd | Health & social care | 2017 |
| ST Engineering UK Ltd | Manufacturing | 2009 |
| ST Finbarrs Social Club (Coventry) Limited | Hospitality | 2010 |
| ST George's Motors Ltd | Real estate | 2015 |
| ST Georges Autocentre Limited | Wholesale & retail | 2016 |
| ST George’S Car Park Ltd | Transport & logistics | 2026 |
| ST Germans Investments Ltd | Construction | 2023 |
| ST International Ltd | Real estate | 2024 |
| ST Ishmaels Limited | Hospitality | 2021 |
| ST James Systems Limited | Professional & scientific | 2014 |
| ST Margarets Express Ltd | Wholesale & retail | 2018 |
| ST Martin Drive 1966 Limited | Extraterritorial | 2013 |
| ST Martin's Residential Homes Ltd | Health & social care | 2006 |
| ST Martins Hospitality Ltd | Hospitality | 2023 |
| ST Martins Trustees Limited | Financial services | 2019 |
| ST Mary's Development (Kent) Ltd | Manufacturing | 2015 |
| ST Mary's Food & Wine Ltd | Wholesale & retail | 2026 |
| ST Mary's Rent Ltd | Construction | 2020 |
| ST Mary’S Property (Kent) Ltd | Construction | 2018 |
| ST Matthews Children's Action Group | Arts & recreation | 2003 |
| ST Matthews Dynamos Ltd | Education | 2025 |
| ST Matthews Laundrette Ltd | Other services | 2019 |
| ST Moscomee Ltd | Real estate | 2025 |
| ST Nicholas SUB Ltd | Hospitality | 2022 |
| ST Pancras Way Propco Limited | Real estate | 2013 |
| ST Paul's Talent Solutions Ltd | Professional & scientific | 2025 |
| ST Personal Training Ltd | Health & social care | 2023 |
| ST Peter's Auto Centre Limited | Professional & scientific | 2007 |
| ST Peters Laundrette Ltd | Other services | 2022 |
| ST Peter’S Care Home Limited | Health & social care | 2019 |
| ST Philip's Centre Ltd | Education | 2005 |
| ST Wireless Limited | Professional & scientific | 2014 |
| St&Op Consulting Ltd | Professional & scientific | 2021 |
| ST. Aldhelm's Pharmacy Limited | Wholesale & retail | 2010 |
| ST. Andrews Play Association | Education | 2005 |
| ST. George Apartments Ltd | Construction | 2007 |
| ST. Johns Chambers Limited | Households | 1993 |
| ST. Kakara Drafas Limited | Health & social care | 2026 |
| ST. Lloyd Global Ltd | Extraterritorial | 2025 |
| ST. Margaret's Coffee House Ltd | Hospitality | 2018 |
| ST. Mary's Wedding Space Ltd | Hospitality | 2024 |
| ST. Mary’S Advance Ltd | Agriculture & fishing | 2026 |
| ST. Mathews Community Solution Centre Ltd. | Health & social care | 2005 |
| ST. Matthews Business Centre Limited | Real estate | 1997 |
| ST. Peter's Auto Centre (Oadby) Limited | Wholesale & retail | 1991 |
| ST. Peters Developments Limited | Health & social care | 2006 |
| STA Retail Ltd | Wholesale & retail | 2023 |
| Stableyard Wines Limited | Wholesale & retail | 2003 |
| Staccd by Nicci Limited | Wholesale & retail | 2021 |
| Stacie-Licious Cakes Ltd | Hospitality | 2020 |
| Stackhouse.Ent Ltd | Information & communication | 2019 |
| Stadar Limited | Administrative & support | 2007 |
| Staff Pro Group Holdings Ltd | Financial services | 2026 |
| Staff Pro Supplies Ltd | Wholesale & retail | 2020 |
| Staffcircle Ltd | Information & communication | 2017 |
| Stag & Rose Realty Ltd | Real estate | 2023 |
| Stagaic Ltd | Real estate | 2025 |
| Stage Construction Ltd | Construction | 2016 |
| Stagedale Limited | Health & social care | 1994 |
| Stagematic Limited | Information & communication | 2024 |
| Stahfed Limited | Health & social care | 2016 |
| Stainsby Electrical Contractors Ltd | Construction | 2023 |
| Stair Plex Limited | Manufacturing | 2025 |
| Stallingborough Ace Ltd | Transport & logistics | 2015 |
| Stallion Business Group Limited | Other services | 2014 |
| Stallion Care Ltd | Health & social care | 2015 |
| Stallions Property Ltd | Real estate | 2017 |
| Stamex Limited | Professional & scientific | 2024 |
| Stamford Business Advisory Services Limited | Professional & scientific | 2024 |
| Stamford Holdings Limited | Financial services | 2018 |
| Stamford Paramount Ltd | Transport & logistics | 2015 |
| Stamm Holdings Ltd | Professional & scientific | 2022 |
| Stan Cris Ltd | Wholesale & retail | 2023 |