| Star Way Services Ltd | Construction | 2017 |
| Starline Consultants Limited | Professional & scientific | 2023 |
| Startopia Entertainment Ltd | Arts & recreation | 2017 |
| Stellar 8 Limited | Real estate | 2025 |
| Stem & Pollen Limited | Wholesale & retail | 2022 |
| Sterling 888 Holdings Ltd | Real estate | 2023 |
| Steve Cockayne Associates Ltd | Construction | 2011 |
| Steven Copas Jewellery Limited | Other services | 2013 |
| Stirling Print Solutions Ltd | Other services | 2017 |
| Stone Mill Ltd | Real estate | 2021 |
| Streak Ltd | Information & communication | 2020 |
| Stressed in the City Ltd | Professional & scientific | 2019 |
| Strive Construction Limited | Other services | 2008 |
| Stryde Talent Ltd | Administrative & support | 2025 |
| Stuart & Gunning Limited | Health & social care | 2013 |
| Studio Lydia Thornley Ltd | Administrative & support | 2010 |
| Success Talks Ltd | Education | 2014 |
| Suedo Engineering Ltd | Wholesale & retail | 2016 |
| Suedo Properties Limited | Real estate | 2007 |
| Sunbeam London Limited | Professional & scientific | 2025 |
| Sunbliss Limited | Real estate | 2013 |
| Sunlight Property Investments Ltd | Real estate | 2018 |
| Sunset Investment Property Ltd | Real estate | 2018 |
| Sunset Tennis Ltd | Other services | 2019 |
| Superb Flooring Installers Limited | Other services | 2017 |
| Surewave Limited | Information & communication | 2006 |
| Surroots Limited | Wholesale & retail | 2024 |
| Syahm Consulting Ltd | Information & communication | 2015 |
| Syjem Real Estate Ltd. | Real estate | 2016 |
| Symss Properties Ltd | Real estate | 2025 |
| Symtec Ltd | Construction | 2024 |
| SYS Management Services Ltd | Real estate | 2018 |
| T & T Group Properties Limited | Real estate | 2024 |
| T & T Roofing Limited | Construction | 2015 |
| T Berisha Ltd | Health & social care | 2025 |
| T.P. Drive Services Ltd | Transport & logistics | 2022 |
| T1 Relocations Ltd | Hospitality | 2025 |
| TAG Aqua Dynamic Limited | Professional & scientific | 2006 |
| Talent Hubb Ltd | Administrative & support | 2025 |
| Tango Consultancy Limited | Manufacturing | 2021 |
| Tango Investment Properties Limited | Hospitality | 2024 |
| Tanners Homes Ltd | Construction | 2015 |
| Tarar Ltd | Wholesale & retail | 2016 |
| Tarj Investments Ltd | Financial services | 2025 |
| Tawakkul Management Limited | Real estate | 2016 |
| Tawny OWL Investments Ltd | Real estate | 2017 |
| Taye Services Limited | Energy | 1995 |
| Taylor Property Developments Limited | Professional & scientific | 1996 |
| TDS Roofing & Construction Limited | Construction | 2022 |
| Team Solution Ltd | Construction | 2017 |
| Techaura Solutions Limited | Wholesale & retail | 2025 |
| Technomate Limited | Wholesale & retail | 2006 |
| Teepee Homes Limited | Wholesale & retail | 2005 |
| Temple Living Ltd | Real estate | 2023 |
| Tempus London Limited | Administrative & support | 2025 |
| Terry KAY Properties Limited | Real estate | 2019 |
| Tesoro MIO Aesthetics Ltd | Professional & scientific | 2021 |
| TFG Properties Limited | Real estate | 2015 |
| TFG Refurbishment Limited | Other services | 2010 |
| Thai Station Ltd | Hospitality | 2025 |
| Thames Entertainment Ltd | Arts & recreation | 2026 |
| THE Arbela Global Company Limited | Administrative & support | 2016 |
| THE Argentine Tango School Limited | Education | 2022 |
| THE Artsy Indigo Ltd | Health & social care | 2025 |
| THE Black Polar Bear Limited | Professional & scientific | 2017 |
| THE Brooklyn EYE Ltd | Information & communication | 2015 |
| THE Card Shop Enterprise Ltd | Wholesale & retail | 2012 |
| THE Cave (Woodford) Limited | Wholesale & retail | 2011 |
| THE Contented Nest Ltd | Arts & recreation | 2020 |
| THE Cozy Cart 4U Ltd | Wholesale & retail | 2025 |
| THE Dasa Group UK Limited | Information & communication | 2024 |
| THE Docklands Scaffolding Company Limited | Construction | 2015 |
| THE Face Trainer Ltd | Other services | 2018 |
| THE Gentry at West India Quay Limited | Other services | 2008 |
| THE Hatha Yoga Effect Ltd | Health & social care | 2021 |
| THE Horner Management Professionals Ltd | Professional & scientific | 2015 |
| THE Italian Oven Ltd | Hospitality | 2020 |
| THE London Aesthetics Parlour Ltd | Other services | 2021 |
| THE Manor Repton Park RTM Limited | Households | 2006 |
| THE Manor Residents Association Limited | Real estate | 2006 |
| THE Nacimiento Tango Company Limited | Arts & recreation | 2022 |
| THE Nail Spa Essex Ltd | Other services | 2021 |
| THE Nova Goods Limited | Wholesale & retail | 2024 |
| THE Oaks Centre Limited | Education | 2005 |
| THE Other Side of Morning CIC | Education | 2023 |
| THE Penny Farthing Micropub Limited | Hospitality | 2021 |
| THE Positive Internet Company Limited | Information & communication | 1998 |
| THE Prodigy Wheelie School Limited | Arts & recreation | 2023 |
| THE Rebekah Foundation CIC | Information & communication | 2021 |
| THE Right Way Construction 15 Ltd | Construction | 2015 |
| THE Rivendell Partnership Ltd | Real estate | 2020 |
| THE Sauna Cube Ltd | Arts & recreation | 2025 |
| THE Seasons Art Class Chelmsford Limited | Arts & recreation | 2022 |
| THE Seasons Art Class the Dengie Limited | Arts & recreation | 2025 |
| THE Seasons Art Class Wickford Limited | Arts & recreation | 2025 |
| THE Silverstein Group Ltd | Professional & scientific | 2024 |
| THE Sleepy OT Limited | Health & social care | 2022 |
| THE Social Stationer Ltd | Manufacturing | 2021 |
| THE Sound of Hammer Ltd | Construction | 2024 |
| THE Sport Advisory Limited | Administrative & support | 2021 |