| Sports Dynamics UK Ltd | Information & communication | 2021 |
| Spring Wellness Limited | Other services | 2023 |
| Springbridge Investments Limited | Real estate | 1964 |
| Stac Properties Limited | Real estate | 2021 |
| Stangate (UK) Ltd | Real estate | 2013 |
| Station House Welling Management Limited | Households | 2012 |
| Stef Dumitru Ltd | Construction | 2020 |
| Stellar Network Limited | Real estate | 2021 |
| Stephanie London Limited | Other services | 2014 |
| Stephen Einhorn Limited | Manufacturing | 1995 |
| Steward Recycling Limited | Water & waste | 2024 |
| Stmi Limited | Other services | 2017 |
| Stonebuild CAP UK Limited | Real estate | 2024 |
| Stonebuild Developments Limited | Real estate | 2016 |
| Stonebuild Estate Limited | Real estate | 2022 |
| Stonework Buildings Limited | Real estate | 2018 |
| Strand Partners Limited | Professional & scientific | 2021 |
| Stride Street Limited | Professional & scientific | 2024 |
| Strivzo Limited | Information & communication | 2023 |
| Suark Limited | Arts & recreation | 2024 |
| Sun YUK Limited | Hospitality | 2026 |
| Sunrise Grandview Limited | Real estate | 2019 |
| Superservice Limited | Wholesale & retail | 1997 |
| Surrey Shades and Home Solutions Ltd | Professional & scientific | 2024 |
| Suzy D (Mill Hill) Ltd | Wholesale & retail | 2010 |
| Sweeney Services Ltd | Construction | 2015 |
| SY Diner Limited | Hospitality | 2022 |
| Taboon Limited | Administrative & support | 1992 |
| Tagumpay Ventures Limited | Hospitality | 2018 |
| Tash Blake IVY Ltd | Information & communication | 2022 |
| Tbsl Limited | Professional & scientific | 1979 |
| TCY Trading Limited | Hospitality | 2025 |
| Techscale Consulting Ltd | Information & communication | 2023 |
| Tgdx Limited | Professional & scientific | 2014 |
| THE Administrator Limited | Extraterritorial | 2006 |
| THE Black Addition Ltd | Wholesale & retail | 2023 |
| THE Exedra Limited | Professional & scientific | 2007 |
| THE Gastro Clinic London Limited | Health & social care | 2021 |
| THE Gourmet Candy Company Limited | Wholesale & retail | 2009 |
| THE Little Brand Ltd | Wholesale & retail | 2015 |
| THE Nellee Hooper Collection Limited | Wholesale & retail | 2015 |
| THE Noble Art (Holdings) Limited | Education | 2018 |
| THE Nurture Nature Gardening Co Limited | Administrative & support | 2000 |
| THE Palacecom Limited | Hospitality | 2024 |
| THE Skindeep Beauty Co (UK) Limited | Wholesale & retail | 2010 |
| THE Sustainable Restaurant Association Limited | Professional & scientific | 1996 |
| THE Thompson & Dean Group Limited | Administrative & support | 2021 |
| Thompson & Dean Portfolio 1 Limited | Financial services | 2024 |
| Thousand Centuries Limited | Real estate | 2022 |
| Tibshelf Ll&P Limited | Real estate | 2024 |
| TIG Logistics Ltd | Wholesale & retail | 2021 |
| Tillbrook's Limited | Financial services | 1984 |
| Timeless BS Limited | Construction | 2017 |
| Timeless Design & Build Limited | Construction | 2016 |
| Timeless Homes (Leagrave) Limited | Real estate | 2020 |
| Tinderfields Ltd | Information & communication | 2009 |
| Titchfield Road Ltd | Real estate | 2013 |
| Tnal Limited | Hospitality | 2024 |
| Toothpicts Limited | Professional & scientific | 2013 |
| Tory Bike UK Limited | Other services | 2026 |
| Total Auto Care Centre Limited | Wholesale & retail | 2026 |
| Total Pet Solutions Ltd | Wholesale & retail | 2021 |
| TOV NU Media and Marketing Limited | Other services | 2026 |
| Trafalgar Property Developments Limited | Construction | 2003 |
| Transactworld Limited | Financial services | 2014 |
| Transline Properties Limited | Construction | 1999 |
| Trijbits Productions Limited | Information & communication | 1997 |
| Tse-Four Limited | Financial services | 2021 |
| Tuel Holdings Limited | Financial services | 2022 |
| Twistedtree Limited | Administrative & support | 2008 |
| UK Property Investment (GB) Limited | Extraterritorial | 2007 |
| UK Property Trust Ltd | Real estate | 1986 |
| UK Sunlens Ltd | Other services | 2018 |
| Ultimate Luxury Living Limited | Professional & scientific | 2017 |
| Unicorn REP Limited | Hospitality | 2013 |
| United Worldwide Trading Ltd | Wholesale & retail | 2022 |
| Urban-Wave Developers Limited | Construction | 2024 |
| Vakrat Limited | Other services | 2022 |
| Valour Magazine Ltd | Information & communication | 2015 |
| Vape Green Limited | Wholesale & retail | 2015 |
| Vapox Green Limited | Wholesale & retail | 2019 |
| VBH Investment Ltd | Real estate | 2020 |
| Verityjade Limited | Administrative & support | 2011 |
| Vi-Able Group Ltd | Information & communication | 2024 |
| Vickery Art Ltd | Administrative & support | 2020 |
| Viosim Plant Sciences Ltd. | Professional & scientific | 2023 |
| Vipathai Co., Limited | Hospitality | 2022 |
| VS Ecom Limited | Wholesale & retail | 2024 |
| Wadaan UK Ltd | Real estate | 2019 |
| WE Buy ANY Plant Limited | Wholesale & retail | 2017 |
| Webdot Limited | Construction | 1997 |
| WEEK8 Holdings (London) Limited | Real estate | 2021 |
| Well Ventures Limited | Administrative & support | 2015 |
| Wellwise Limited | Health & social care | 2016 |
| Werth Limited | Professional & scientific | 2008 |
| West Lodge Capital Limited | Real estate | 2014 |
| West Lodge Capital Number One Limited | Construction | 2019 |
| West Lodge Capital Number Two Limited | Construction | 2021 |
| Weston Estate Management Services Ltd | Real estate | 2014 |
| What ARE the Odds Theatre Ltd | Arts & recreation | 2024 |