| SS Hospitality Ltd | Hospitality | 2018 |
| SS Infosol Limited | Information & communication | 2022 |
| SS Infynix Ltd | Information & communication | 2026 |
| SS Pearls Ltd | Real estate | 2025 |
| SS Sandhu London Construction Ltd | Construction | 2017 |
| SSB & Partners Investments Ltd | Construction | 2023 |
| Ssbe Ltd | Real estate | 2025 |
| Ssdk Services Limited | Administrative & support | 2016 |
| SSG Estates Ltd | Real estate | 2021 |
| SSH Bar Ltd | Hospitality | 2019 |
| SSH Shah Ltd | Transport & logistics | 2019 |
| SSK & AKK Ltd | Professional & scientific | 2025 |
| SSK Financial Investments Ltd | Other services | 2020 |
| Sskang Innovations Ltd | Transport & logistics | 2025 |
| SSM Technologies Limited | Information & communication | 2015 |
| Ssnk Ltd | Construction | 2025 |
| Ssonasanchi Limited | Wholesale & retail | 2025 |
| SSP Haulage Ltd | Transport & logistics | 2025 |
| Ssps Investment Ltd | Real estate | 2022 |
| Ssquareproductions Ltd | Information & communication | 2020 |
| SSR Motors Ltd | Wholesale & retail | 2014 |
| SSS Bullion Ltd | Manufacturing | 2025 |
| SSS Chauffeurs Limited | Transport & logistics | 2024 |
| SSS Superstore Ltd | Wholesale & retail | 2023 |
| SSS Times Limited | Construction | 2023 |
| Sssv Technologies UK Limited | Information & communication | 2020 |
| Ssvph Ltd | Information & communication | 2023 |
| ST Anthony Goan Kitchen Ltd | Hospitality | 2025 |
| ST Catherine's Group Ltd | Health & social care | 2026 |
| ST James Realty Limited | Real estate | 2025 |
| ST Legacy Limited | Financial services | 2023 |
| ST Martins Realty Limited | Real estate | 2025 |
| ST Michael's Realty Limited | Real estate | 2024 |
| ST Peter Design and Build Limited | Construction | 2015 |
| ST Regis Realty Limited | Real estate | 2024 |
| ST Virani Limited | Wholesale & retail | 2025 |
| ST. Clements Healthcare Ltd | Education | 2026 |
| STA Law Ltd | Professional & scientific | 2024 |
| STA Ventures Ltd | Other services | 2021 |
| Staff Cover Ltd | Administrative & support | 2025 |
| STAFF4SCHOOLS Ltd | Administrative & support | 2026 |
| Staffing 1ST Ltd | Administrative & support | 2022 |
| Staffing Solutions 24/7 Limited | Transport & logistics | 2022 |
| Staffline Services Ltd | Real estate | 2021 |
| Staffnmart Limited | Wholesale & retail | 2025 |
| Stafford Plastering UK Ltd | Construction | 2015 |
| Staffpro Resourcing Limited | Administrative & support | 2022 |
| Stagevox Security Ltd | Administrative & support | 2025 |
| Staines Food & Wine Limited | Wholesale & retail | 2012 |
| Staines Reality Limited | Real estate | 2025 |
| Stalir Ltd | Wholesale & retail | 2021 |
| Stallion Freight Services Ltd | Transport & logistics | 2025 |
| Stallion Homes and Lettings Ltd | Real estate | 2024 |
| Stamfords Limited | Real estate | 2001 |
| Standard Tuitions Limited | Education | 2013 |
| Stanimir Maksimov Kostov Ltd | Extraterritorial | 2023 |
| Stanlake BC Ltd | Real estate | 2025 |
| Stanwell Supermarket T/A MOT Centre Heston Ltd | Wholesale & retail | 2008 |
| Star Anslow Place Ltd | Real estate | 2025 |
| Star Assessments Ltd | Education | 2017 |
| Star Buying and Selling Property Limited | Real estate | 2023 |
| Star Cargo Worldwide Express Ltd | Transport & logistics | 2015 |
| Star Claims Ltd | Administrative & support | 2024 |
| Star Cleanix Ltd | Construction | 2013 |
| Star Days Security Services Ltd | Administrative & support | 2023 |
| Star Forum Limited | Real estate | 2003 |
| Star Gloves Group Ltd | Wholesale & retail | 2023 |
| Star Light Tour & Travel Ltd | Administrative & support | 2024 |
| Star Lighting Ltd | Wholesale & retail | 2023 |
| Starcasters Limited | Real estate | 2025 |
| Stardeep Ltd | Professional & scientific | 2024 |
| Startech Corp Ltd | Information & communication | 2025 |
| Station Road Trading Limited | Transport & logistics | 2019 |
| Stature Mobile Ltd | Wholesale & retail | 2024 |
| Stay Warm Insulation Ltd | Construction | 2018 |
| Staybility Limited | Hospitality | 2024 |
| Steady Flow Ltd | Wholesale & retail | 2024 |
| Stealth Express Limited | Transport & logistics | 2019 |
| Stech International Limited | Professional & scientific | 2017 |
| Steelmara Ltd | Construction | 2015 |
| Steelo Limited | Construction | 2009 |
| Stef Speed Ltd | Construction | 2018 |
| Stefix Limited | Construction | 2022 |
| Stefka Ltd | Wholesale & retail | 2018 |
| Steinhoff Limited | Information & communication | 2017 |
| Stelian Construction Brickwork Ltd | Construction | 2017 |
| Stellar Pro Ltd | Wholesale & retail | 2021 |
| Stellartek Ltd | Information & communication | 2012 |
| Stem Academy Ltd | Education | 2023 |
| Stemulution Ltd | Wholesale & retail | 2025 |
| Step One BAL Ltd | Real estate | 2025 |
| Stepright Floors Limited | Wholesale & retail | 2026 |
| Sterling Capital Realty Ltd | Real estate | 2026 |
| Sterling Investment Enterprises Limited | Financial services | 2023 |
| Sterling Island Ltd | Wholesale & retail | 2020 |
| Sterling Kitchen and Bedroom Ltd | Manufacturing | 2022 |
| Sterling Properties Solution Ltd | Households | 2025 |
| Sterling Property Services Ltd | Construction | 2025 |
| Stevian Medical Consulting Ltd | Health & social care | 2025 |
| Sthira Pragna Consultancy Limited | Professional & scientific | 2021 |