| Streatham London Ltd | Real estate | 2026 |
| Strix Advisory Ltd | Professional & scientific | 2021 |
| Sudania Chou Ltd | Professional & scientific | 2023 |
| Summerfield Education Limited | Education | 2020 |
| Sun Arrow Logistic Ltd | Transport & logistics | 2026 |
| Suneeta Cosmetics London Limited | Other services | 2019 |
| Sunstone Ventures Ltd | Wholesale & retail | 2026 |
| Supa Store London Limited | Wholesale & retail | 2025 |
| Superguardian Ltd | Administrative & support | 2023 |
| Supershine Window Cleaning Limited | Administrative & support | 2008 |
| Supreme Homes Limited | Health & social care | 2013 |
| Sureplumb Ltd | Construction | 2013 |
| Surge Automation International Ltd | Manufacturing | 2022 |
| Surrey Build Civils Limited | Construction | 2024 |
| Surrey Build Group Limited | Financial services | 2024 |
| Surrey Decking Specialists Limited | Administrative & support | 2017 |
| Surrey Electrical Services Limited | Administrative & support | 2009 |
| Surrey Hills Properties Limited | Real estate | 2022 |
| Surrey Loft Conversions Limited | Construction | 2024 |
| Surrey Lofts Guarantees Ltd | Financial services | 2022 |
| Surrey Sharks Limited | Arts & recreation | 2025 |
| Surrey Spirits Ltd | Manufacturing | 2024 |
| Surrey Surface Care Limited | Administrative & support | 2020 |
| Surrey Timber Merchant Limited | Wholesale & retail | 2024 |
| Surrey-Tech Tech Solutions Ltd | Information & communication | 2025 |
| Sussex Lofts Limited | Construction | 2024 |
| Swallowtail Solutions Ltd | Other services | 2013 |
| Swcbs Ltd | Construction | 2023 |
| Swift Direct Ltd | Wholesale & retail | 2025 |
| Synrgy Solutions Group Ltd | Administrative & support | 2024 |
| Systematic Technologies Limited | Information & communication | 2013 |
| Systems Cabling Limited | Construction | 1986 |
| Szulster Transport Ltd | Transport & logistics | 2015 |
| T J Leasing Limited | Wholesale & retail | 2017 |
| T K Tours Limited | Real estate | 2005 |
| T&T Cars LDN Limited | Administrative & support | 2025 |
| T.P. Construction Engineering Limited | Professional & scientific | 2006 |
| T2FIT Fuel Bar Ltd | Hospitality | 2026 |
| Tacey Roofing Ltd | Construction | 2015 |
| Tacta Ltd | Information & communication | 2025 |
| Tallis Educational Psychology Solutions Limited | Education | 2024 |
| Tannegate Limited | Wholesale & retail | 1980 |
| Tannegate Properties Limited | Real estate | 2016 |
| TAO Advisory Limited | Financial services | 2018 |
| Taste & C Catering Limited | Hospitality | 2025 |
| Tatty Boho Limited | Wholesale & retail | 2021 |
| Taurai Films Limited | Information & communication | 2017 |
| Taylor Building Services Limited | Construction | 2016 |
| Taylor Made Painting Ltd | Construction | 2025 |
| Taylor'D Loft Conversions Ltd | Construction | 2014 |
| Taylor-Paige Property Holdings Ltd | Households | 2025 |
| TC Wetrooms Limited | Construction | 2009 |
| Telecom Engineering Solutions Ltd | Information & communication | 2020 |
| Tennig Limited | Extraterritorial | 2003 |
| Tepao Ltd | Education | 2019 |
| Terziev Group Ltd | Construction | 2016 |
| Testava Global Education Limited | Education | 2025 |
| Tetradt Ltd | Financial services | 2024 |
| Teva Access Ltd | Arts & recreation | 2024 |
| TH & DR Properties Limited | Real estate | 2021 |
| Tham Properties Limited | Real estate | 2017 |
| Thames Accountancy Ltd | Professional & scientific | 2014 |
| Thames London Cleaning Services Limited | Administrative & support | 2021 |
| Thames River Boats Ltd | Transport & logistics | 2021 |
| THE a Team Clean & Maintenance Ltd | Administrative & support | 2020 |
| THE Admin House Ltd | Administrative & support | 2025 |
| THE Aligned Method Studio Ltd | Information & communication | 2023 |
| THE ARK of GOD Church Ltd | Other services | 2020 |
| THE Carpentry & Joinery Co. Ltd | Manufacturing | 2024 |
| THE Carridge House Limited | Other services | 2024 |
| THE Cat Doctor Ltd | Professional & scientific | 2012 |
| THE Chipstead Bowling Club Limited | Arts & recreation | 1995 |
| THE Diversity Practice Limited | Professional & scientific | 2003 |
| THE Globe Atelier Limited | Administrative & support | 2026 |
| THE Gold Seagull Limited | Real estate | 2016 |
| THE Great Commission Incorporation Ltd | Other services | 2007 |
| THE J. Golding Group Limited | Financial services | 2022 |
| THE Kairo Group Ltd | Information & communication | 2024 |
| THE Level Headed Builders Limited | Construction | 2025 |
| THE Lifting Corner Ltd | Real estate | 2024 |
| THE Nexus by Alpha Oak Ltd | Real estate | 2026 |
| THE Orange Lamp Post Limited | Wholesale & retail | 2017 |
| THE Pawsitive Studio Limited | Other services | 2024 |
| THE Performance Scientist Limited | Information & communication | 2013 |
| THE Retail Expert Technologies Ltd | Information & communication | 2024 |
| THE Right Locksmith Limited | Other services | 2026 |
| THE Rugby Coach Ltd | Manufacturing | 2017 |
| THE Simple Ideas Group Ltd | Manufacturing | 2018 |
| THE Smarter Wealth Club Ltd | Professional & scientific | 2024 |
| THE Surrey Build Centre Ltd | Real estate | 2025 |
| THE Therapeutic Tutors CIC | Education | 2023 |
| THE Travel Lounge BG Ltd | Administrative & support | 2026 |
| The.London.Contractor Ltd | Construction | 2024 |
| Thea Projects Limited | Construction | 2018 |
| Thinkdoodl Limited | Professional & scientific | 2025 |
| Thirsty Point Limited | Wholesale & retail | 2025 |
| Thirsty Work Food and Wine Limited | Wholesale & retail | 2021 |
| THIRTY1-TWENTY8 Limited | Real estate | 2021 |
| Thodlana Health Limited | Health & social care | 2016 |
| Thought Form Design Limited | Education | 2015 |