| Streets (Banbury) Limited | Professional & scientific | 2006 |
| Streets (Bournemouth) Limited | Professional & scientific | 2008 |
| Streets (Burnley) Limited | Professional & scientific | 2006 |
| Streets (Chorley) Limited | Professional & scientific | 2011 |
| Streets (London) LLP | | 2026 |
| Streets (Stamford) Limited | Professional & scientific | 1999 |
| Streets (West Sussex) Limited | Professional & scientific | 2026 |
| Streets (Worthing) Holdings Limited | Financial services | 2014 |
| Streets (Worthing) Limited | Professional & scientific | 2008 |
| Streets Andrew Wright Limited | Professional & scientific | 2017 |
| Streets Audit LLP | | 2004 |
| Streets AV2 Limited | Professional & scientific | 2023 |
| Streets Bloodstock Accountants Limited | Professional & scientific | 2016 |
| Streets Bush Limited | Professional & scientific | 2014 |
| Streets Dyke Ruscoe (Holdings) Limited | Financial services | 2017 |
| Streets Dyke Ruscoe Limited | Professional & scientific | 2005 |
| Streets Employment (UK) LLP | | 2004 |
| Streets Financial Consulting Limited | Financial services | 1986 |
| Streets Hackett Griffey LLP | | 2010 |
| Streets Heaver Computer Systems Limited | Information & communication | 1986 |
| Streets Holdco Limited | Financial services | 2025 |
| Streets Innovation & Creative Reliefs Limited | Professional & scientific | 2023 |
| Streets ISA Limited | Professional & scientific | 2011 |
| Streets Law Limited | Professional & scientific | 2016 |
| Streets LLP | | 2004 |
| Streets Metherell Gard Limited | Professional & scientific | 2001 |
| Streets Name Swap Limited | Financial services | 2026 |
| Streets Northern Limited | Financial services | 2025 |
| Streets S J Males Limited | Professional & scientific | 2021 |
| Streets S W Business Services Limited | Professional & scientific | 1995 |
| Streets SA Limited | Professional & scientific | 2023 |
| Streets South Africa Limited | Administrative & support | 2025 |
| Streets Southern Limited | Financial services | 2025 |
| Streets Spenser Wilson (Yorkshire) Limited | Professional & scientific | 2008 |
| Streets Spenser Wilson LLP | | 2023 |
| Streets Stevens & Willey LLP | | 2025 |
| Streets Tax LLP | | 2004 |
| Streets Whitmarsh Sterland LLP | | 2007 |
| Streets Whittle & Partners LLP | | 2009 |
| Streetshirts Limited | Wholesale & retail | 2013 |
| Strictly Shooting UK Ltd | Information & communication | 2022 |
| Strike Sales & Distribution Ltd | Wholesale & retail | 2022 |
| Strike-Zone Limited | Arts & recreation | 2010 |
| Strivesa Ltd | Education | 2023 |
| Strob Ltd | Professional & scientific | 2026 |
| Strong AS an OX Limited | Arts & recreation | 2024 |
| Strong Girl Squad CIC | Education | 2022 |
| Strongcodes Ltd | Wholesale & retail | 2017 |
| Stroud Prop Trading Ltd | Real estate | 2026 |
| Structapro Recruitment Ltd | Administrative & support | 2026 |
| Structural Mechanical Services Ltd | Transport & logistics | 2015 |
| Strutsi Ltd | Information & communication | 2025 |
| Strxct Ltd | Manufacturing | 2025 |
| Stryk Football Limited | Arts & recreation | 2026 |
| STS Advisory Ltd | Professional & scientific | 2024 |
| STS Intellimon Limited | Manufacturing | 2003 |
| STU Causer Transport Ltd | | 2013 |
| Stuart Bloom Ltd | Health & social care | 2010 |
| Stuart Cadzow Consulting Limited | Professional & scientific | 2017 |
| Stuart Davenport Properties Ltd | Real estate | 2026 |
| Stuart Gardiner Design Limited | Professional & scientific | 2008 |
| Stuart Morrison Consultancy Limited | Professional & scientific | 2016 |
| Stuart Wallace Electrical Limited | Wholesale & retail | 2002 |
| Stuart Wilde Photography Ltd | Professional & scientific | 2011 |
| Student Housing Properties Limited | Real estate | 2020 |
| Students' Union Management System Ltd | Information & communication | 2016 |
| Studio & LAB Ltd | Professional & scientific | 2022 |
| Studio 101 Photography Ltd | Professional & scientific | 2022 |
| Studio Mortar Limited | Wholesale & retail | 2024 |
| Studio Parga Ltd | Wholesale & retail | 2023 |
| Studio Sun Limited | Other services | 2024 |
| Studio Twentyten Ltd | Arts & recreation | 2025 |
| Studio XR Ltd | Arts & recreation | 2024 |
| Study Marketing Limited | Education | 2019 |
| Stump Beaver Ltd | Extraterritorial | 2011 |
| Stumpbusters Lincolnshire Ltd | Agriculture & fishing | 2025 |
| Sturton and Stow Motor Sports Club Limited | Arts & recreation | 2024 |
| Sturton Securities Limited | Real estate | 1977 |
| Style Bathrooms Specialists Limited | Construction | 2026 |
| Submariners United in Business CIC | Administrative & support | 2024 |
| Subsea Alliance Services Ltd | Professional & scientific | 2025 |
| Substratus HDD Limited | Construction | 2025 |
| Success Wears Limited | Health & social care | 2024 |
| Sudbrooke Broilers Limited | Extraterritorial | 1964 |
| Sudbrooke Investment Company Limited | Real estate | 2015 |
| Sudbrooke Village Store Ltd | Wholesale & retail | 2017 |
| Sudbury Orchard Property Limited | Real estate | 1991 |
| Sudz Autocare Ltd | Administrative & support | 2023 |
| Sugar for My Soul Limited | Arts & recreation | 2015 |
| Sugar Plug Sweets Ltd | Wholesale & retail | 2026 |
| Sukh Glam Studio Ltd | Other services | 2025 |
| Sullivan Colour Laboratories Limited | Professional & scientific | 1978 |
| Sultan Azuman Limited | Hospitality | 2021 |
| Sumiuaps Limited | Administrative & support | 2024 |
| Summit Commercial Financial Solutions Limited | Professional & scientific | 2024 |
| Summit Plumbing Limited | Construction | 2024 |
| Summit Rentals Limited | Real estate | 2026 |
| Sumner's Property Management Ltd | Real estate | 2025 |
| Sun Security Services Ltd | Wholesale & retail | 2024 |
| Sun-Hat Limited | Administrative & support | 2000 |