| Stranger Blings Ltd | Wholesale & retail | 2025 |
| Stratsoft Limited | Information & communication | 2017 |
| Stride Tech Limited | Information & communication | 2024 |
| STT Business Services Ltd | Information & communication | 2013 |
| Studio 01 Limited | Professional & scientific | 2025 |
| Studio Gogate Ltd | Professional & scientific | 2026 |
| STUDIOS96 Ltd | Arts & recreation | 2025 |
| Sublime Staffing Solutions Ltd | Administrative & support | 2023 |
| Sudha's Clothing and Cosmetic Ltd | Wholesale & retail | 2025 |
| Sufficient Care Ltd | Extraterritorial | 2016 |
| Sufficient Maintenance Ltd | Construction | 2017 |
| Suga Holdings Limited | Financial services | 2025 |
| Sugar Consultancy Services Ltd | Information & communication | 2019 |
| Summit Pathways Limited | Health & social care | 2021 |
| Sun Rea’S Ltd | Other services | 2026 |
| Sunbeam Ventures UK Limited | Real estate | 2022 |
| Sunlux Limited | Wholesale & retail | 2012 |
| Sunmoonoon Integrated Comcepts Ltd | Construction | 2019 |
| Sunny Crown Limited | Wholesale & retail | 2025 |
| Sunoak Limited | | 1975 |
| Sunrise Wholesale Ltd | Wholesale & retail | 2024 |
| Sunset Builds Limited | Construction | 2026 |
| Sunshine Builders Ltd | Construction | 2021 |
| Sunttop Limited | Construction | 2025 |
| Suntun Electrical Limited | Energy | 2014 |
| Support Zone House Ltd | Health & social care | 2022 |
| Suprizebox Limited | Wholesale & retail | 2013 |
| Sure Accounting Services Ltd | Professional & scientific | 2023 |
| Surecare Appliances Ltd | Other services | 2025 |
| Sureday Management Limited | Real estate | 2024 |
| Surovi Limited | Wholesale & retail | 2016 |
| Suya Academy Ltd | Hospitality | 2018 |
| Suya Academy Plus Limited | Hospitality | 2024 |
| Suyaya Restaurant & Cafe Ltd | Hospitality | 2024 |
| Svosve Limited | Real estate | 2020 |
| Swaan Hospitality Limited | Administrative & support | 2019 |
| Swandale Refrigeration Ltd. | Wholesale & retail | 2004 |
| Swanley Local Limited | Wholesale & retail | 2022 |
| Swaze UK Ltd | Administrative & support | 2019 |
| Swedish Wharf Properties Limited | Extraterritorial | 2013 |
| Sweet Spa Party Ltd | Hospitality | 2023 |
| Swhn Logistics Ltd | Construction | 2018 |
| Swift Office Solution Ltd | Manufacturing | 2021 |
| Sylvia Medicare Ltd | Health & social care | 2012 |
| Systematise Design Ltd | Professional & scientific | 2022 |
| Szymon Narczynski Ltd | Construction | 2014 |
| T & a Building and Maintenance Ltd | Construction | 2021 |
| T & L Hvac Services Ltd | Manufacturing | 2023 |
| T J Contracts Ltd | Construction | 2020 |
| T MAY Limited | Information & communication | 2009 |
| T&T Care Services PVT Limited | Health & social care | 2008 |
| T-Quad Limited | Information & communication | 2008 |
| T.K. Best One Limited | Wholesale & retail | 2010 |
| T@Isiorho Limited | Public administration | 2025 |
| Taaso Limited | Other services | 2019 |
| Tabima Holdings Ltd | Real estate | 2025 |
| TAD Bar & Grill Limited | Hospitality | 2019 |
| Taisa Limited | Health & social care | 2021 |
| Takd Consulting Limited | Professional & scientific | 2022 |
| Talent Matrix Ltd | Administrative & support | 2025 |
| Tall Giraffe HR Ltd | Administrative & support | 2025 |
| Tallisdom Healthcare Limited | Wholesale & retail | 2009 |
| Tamag Healthcare Ltd | Health & social care | 2020 |
| Tamara Tarebi Limited | Wholesale & retail | 2020 |
| Tamus Properties Ltd | Real estate | 2025 |
| Tani Prime Construction Ltd | Construction | 2025 |
| Taokudi Consulting Ltd | Information & communication | 2016 |
| Tapin 3PL Ltd | Transport & logistics | 2018 |
| Tara Maesa Ltd | Other services | 2024 |
| Tare Homes Care Ltd | Health & social care | 2012 |
| Tarich Limited | Professional & scientific | 2011 |
| Tarich Tuition Centres Limited | Education | 2019 |
| Tariro Investments Limited | Real estate | 2024 |
| Tarot for Two Ltd | Wholesale & retail | 2025 |
| Taste London Ltd | Administrative & support | 2026 |
| Tasty Khaja Ghar Ltd | Hospitality | 2025 |
| Taurean Homes Ltd | Health & social care | 2022 |
| Tax Filed Ltd | Professional & scientific | 2015 |
| Taylor Maintenance Limited | Construction | 2007 |
| Taylor'D Tails Limited | Other services | 2021 |
| TB Duct Ltd | Construction | 2024 |
| TB Transport Services Ltd | Transport & logistics | 2024 |
| Tdmcn Properties Limited | Real estate | 2022 |
| TDT Associates Ltd | Health & social care | 2022 |
| Technimus Limited | Information & communication | 2025 |
| Techrevive Services Limited | Wholesale & retail | 2024 |
| Tecvinson Limited | Wholesale & retail | 2019 |
| TEE Construction Southwest Ltd | Wholesale & retail | 2010 |
| Teecee Ltd | Construction | 2014 |
| Teeny Tiny Properties Ltd | Real estate | 2020 |
| Teeola Care Limited | Health & social care | 2026 |
| Tees Care Solution Ltd | Health & social care | 2022 |
| Tehilla Christian Centre Ltd | Hospitality | 2015 |
| Tekasala Jewellery Ltd | Manufacturing | 2025 |
| Telos A.L.E.F.F. Limited | Information & communication | 1997 |
| Temini Ltd | Wholesale & retail | 2020 |
| Temsline Health Care Service Ltd | Health & social care | 2022 |
| Tenda Care Ltd | Health & social care | 2013 |
| TEO Building Ltd | Construction | 2025 |
| Teppa Investment Limited | Real estate | 2023 |