| Rebirth of a British Icon Limited | Information & communication | 2018 |
| Redsan Properties Ltd | Real estate | 2019 |
| Responsec Ltd. | Administrative & support | 2011 |
| RF Physiotherapy Ltd | Health & social care | 2022 |
| RGP Lifting Ltd | Construction | 2021 |
| Rise Residents Association Limited (the) | Households | 1975 |
| Rochela Investments Ltd | Financial services | 2025 |
| Rorie Ltd | Health & social care | 2026 |
| Rosendale Associates Limited | Administrative & support | 2016 |
| Route 1 TCG Ltd | Arts & recreation | 2024 |
| S3IA Limited | Professional & scientific | 2009 |
| SA Global IT Solutions Ltd | Information & communication | 2019 |
| Sanity NOT Vanity Limited | Arts & recreation | 2020 |
| SB Stressing Ltd | Construction | 2016 |
| Scaffold Design Company Limited | Professional & scientific | 2003 |
| Scafforce Limited | Construction | 2019 |
| SE24 Limited | Administrative & support | 2007 |
| Second Moon Studio Ltd | Professional & scientific | 2020 |
| Section 31 Training and Consultancy Ltd | Health & social care | 2015 |
| Serkane Limited | Other services | 2017 |
| Sewardstone Burials Limited | Other services | 2019 |
| Sewardstone Investments and Holdings Limited | Financial services | 2026 |
| Sewardstone Land Limited | Real estate | 2018 |
| Sewardstone Park Cemetery and Crematorium Ltd | Real estate | 2025 |
| SGW Management Consultants Limited | Professional & scientific | 2002 |
| Silver J Limited | Wholesale & retail | 2002 |
| Silverthorn Associates Limited | Professional & scientific | 2005 |
| Simi Ventures Limited | Wholesale & retail | 2016 |
| Skubbl Ltd | Wholesale & retail | 2018 |
| Small Steps (Leyton) Ltd | Education | 2024 |
| Smartfull Services Ltd | Wholesale & retail | 2006 |
| SMP Financial Consulting Ltd | Professional & scientific | 2015 |
| Soothetech Ltd | Information & communication | 2019 |
| Soutars IT Solutions Limited | Information & communication | 2016 |
| South Norwood Investments Limited | Real estate | 2018 |
| Spark Nibs Limited | Professional & scientific | 2017 |
| Stratexology LLP | | 2014 |
| Streamsort Ltd | Information & communication | 2025 |
| Strictly Silver (London) Limited | Wholesale & retail | 2013 |
| Studyque Ltd | Education | 2023 |
| Swift and Sharp Cleaning Services Ltd | Administrative & support | 2024 |
| Switch Training & Assessments Ltd | Construction | 2019 |
| T Buckley Contracts Ltd | Construction | 2017 |
| Tameer Foundation | Health & social care | 2011 |
| Tech-En Ltd | Administrative & support | 1999 |
| Terra Nove Limited | Construction | 2015 |
| THE Festival of Hope Events Limited | Arts & recreation | 2022 |
| THE QC Laboratory Limited | Manufacturing | 1992 |
| THE Stag & Lantern Limited | Hospitality | 2019 |
| THE Two J'S Property Developments Limited | Construction | 1997 |
| THE UNI Bubble Ltd | Information & communication | 2017 |
| THE Wellness Works Ltd | Other services | 2022 |
| THE Woodland Hold Co Limited | Financial services | 2026 |
| Thorne Cricket Limited | Manufacturing | 2022 |
| Tigervale Unlimited | Financial services | 2018 |
| Top Class Black CAB Tours (London) Ltd | Transport & logistics | 2012 |
| Top Mark Tuition Centre Limited | Education | 2024 |
| Top Mark Tuition Plus Limited | Education | 2024 |
| Top Masters Ltd. | Information & communication | 1993 |
| Torched Limited | Information & communication | 2012 |
| Torchwood Five Limited | Real estate | 2019 |
| Tornado Group Holdings Limited | Administrative & support | 2020 |
| TPS Carpentry Limited | Construction | 2021 |
| Trace Fire Limited | Administrative & support | 2009 |
| TTC Financial Consulting Ltd | Administrative & support | 2022 |
| TWENTY15 Ventures Limited | Wholesale & retail | 2018 |
| UC Cars Ltd | Wholesale & retail | 2019 |
| Ucentricity Ltd | Information & communication | 2018 |
| UK Property Holdings Limited | Real estate | 2006 |
| Unique Windows (Essex) Limited | Construction | 2025 |
| United Logistics Europe Ltd | Transport & logistics | 2018 |
| Universal Cars Management Ltd | Wholesale & retail | 2016 |
| Universal Homes Management Ltd | Real estate | 2016 |
| Urbanex Properties Ltd | Real estate | 2024 |
| US & UK Eagle Taxation Limited | Professional & scientific | 2015 |
| V4 Construction & Developments Ltd | Construction | 2023 |
| Varaa Limited | Real estate | 2018 |
| Verminate City & Rural Pest Control Limited | Professional & scientific | 2001 |
| Viking Place Block C RTM Company Limited | Households | 2016 |
| Vine Court Ware Limited | Households | 2022 |
| Wake CUP Chingford Ltd | Hospitality | 2011 |
| Wellstress Limited | Professional & scientific | 2016 |
| WEM Consulting Limited | Administrative & support | 2022 |
| WESTMOUNT360 Limited | Professional & scientific | 2017 |
| WM Financial Solutions Limited | Financial services | 2013 |
| Wondervision Films Ltd | Information & communication | 2014 |
| Wood Quality Working Ltd | Construction | 2018 |
| Wooden Properties Limited | Real estate | 2024 |
| Woodford Broadway Limited | Real estate | 2021 |
| Woodland Hospitality E4 Ltd | Hospitality | 2026 |
| World Policing Limited | Health & social care | 2022 |
| WPG Shop Limited | Administrative & support | 2020 |
| X-Co Ltd | Information & communication | 2018 |
| X7EAVEN Community | Arts & recreation | 2009 |
| X7EAVEN Productions Ltd | Arts & recreation | 2007 |
| XAZ Click Solutions Limited | Hospitality | 2016 |
| Yorkshire Medicolegal Ltd | Health & social care | 2021 |
| ZAX Bite Limited | Hospitality | 2020 |
| Zest Animation Ltd | Information & communication | 2013 |
| Zest Catering Creations Ltd | Hospitality | 2015 |