| Solar Flare PV Ltd | Energy | 2024 |
| Solar ORB Ltd | Construction | 2024 |
| Somerdale Interior Design Ltd | Construction | 2011 |
| SOR Prestige Ltd | Wholesale & retail | 2022 |
| Sparham Signature Estates Ltd | Real estate | 2025 |
| Spear and Spear Company Limited | Construction | 1989 |
| Special Days Ripley Limited | Wholesale & retail | 2019 |
| Spectrumheads CIC | Education | 2023 |
| Springburn Associates Ltd | Professional & scientific | 2017 |
| SPV Property Investments Limited | Real estate | 2024 |
| SPX365 Limited | Other services | 2009 |
| SRG Fixings Limited | Wholesale & retail | 2009 |
| Ssct Training Limited | Construction | 2025 |
| Sslo Limited | Hospitality | 2026 |
| SSM Cleaning Ltd | Administrative & support | 2026 |
| Stiebel of Nottingham Limited | Wholesale & retail | 2014 |
| Stile and Blooms Limited | Wholesale & retail | 2023 |
| Stone Surveying Ltd | Construction | 2015 |
| Stonewater Landscapes Ltd | Professional & scientific | 2026 |
| Strategy Partners Limited | Financial services | 1991 |
| Stratton Lansdowne Ltd | Real estate | 2021 |
| Strings Centre Limited | Manufacturing | 2025 |
| Strive Business Limited | Professional & scientific | 2021 |
| Structural Engineering Ltd | Construction | 2019 |
| Studentkind Ltd | Information & communication | 2026 |
| Studio 7 Dance and Performing Arts School Ltd | Education | 2014 |
| Suba Ltd | Manufacturing | 2018 |
| Sunny Days Preschool Nursery Ltd | Education | 2014 |
| Survey Partners Ltd | Wholesale & retail | 2010 |
| Sutton Estates Limited | Real estate | 2019 |
| SV2 - Supporting Victims of Sexual Violence Ltd | Health & social care | 1994 |
| SVN Downhole Global Limited | Manufacturing | 2021 |
| Swift & Green Ltd | Manufacturing | 2010 |
| Swish Shoes Limited | Wholesale & retail | 2024 |
| Swyp Property Management Ltd | Real estate | 2021 |
| T & Y Properties Pro Ltd | Real estate | 2025 |
| T Barker Ltd | Extraterritorial | 2025 |
| T R T Precision Engineering Limited | Manufacturing | 2019 |
| T Ropers Landscaping and Building Services Ltd | Construction | 2026 |
| TAKE2THEWEB Limited | Information & communication | 2001 |
| Tank Logistics Solutions Ltd | Transport & logistics | 2025 |
| Tarpey Ceramics Limited | Manufacturing | 2022 |
| Tarpey-Harris Limited | Manufacturing | 1969 |
| Taylor'Ed Adhesive Solutions Ltd | Construction | 2020 |
| Tbei Ltd | Construction | 2026 |
| TCA Distributions Ltd | Wholesale & retail | 2026 |
| TDR Ltd | Transport & logistics | 2016 |
| TDV Electronics Ltd | Manufacturing | 2019 |
| Team Morley Limited | Professional & scientific | 2017 |
| Technique Composites Ltd | Manufacturing | 2008 |
| Technocargo Logistics Limited | Transport & logistics | 2005 |
| Telpark (UK) Limited | Administrative & support | 1985 |
| Templelane Properties Limited | Real estate | 1956 |
| Termu Limited | Health & social care | 2025 |
| Texture JET Ltd | Manufacturing | 2019 |
| TH Site Management Ltd | Construction | 2023 |
| Thai Massage Ltd | Other services | 2025 |
| THE Adaptiv Group Ltd | Professional & scientific | 2026 |
| THE Benefit Life Skills Academy LLP | | 2023 |
| THE Brown Bear Coffee Shop Ltd | Hospitality | 2015 |
| THE Chequered Flag (CD) Ltd | Professional & scientific | 2019 |
| THE Convention Company Limited | Administrative & support | 2019 |
| THE Creative Kitchen Company (Midlands) Limited | Manufacturing | 2019 |
| THE Eland Partnership Limited | Financial services | 2023 |
| THE Gatemaker (Midlands) Limited | Manufacturing | 2013 |
| THE Gift Gaff Ltd | Wholesale & retail | 2026 |
| THE Happy Glow Candle Co Ltd | Manufacturing | 2025 |
| THE Kathmandu Ltd | Hospitality | 2022 |
| THE Mechanical Group Ltd | Wholesale & retail | 2023 |
| THE Old Farm BUS CIC | Arts & recreation | 2020 |
| THE Pet Shop (Ripley) Ltd | Wholesale & retail | 2013 |
| THE Remarkable Wrap Service Company Limited | Education | 2018 |
| THE Ripley Gym Limited | Arts & recreation | 2015 |
| THE Sealant Guys Ltd | Construction | 2025 |
| THE Village Inn at Marehay Limited | Hospitality | 2012 |
| THE Xchange (Ripley) Ltd | Hospitality | 2014 |
| Thompson Upholstery Limited | Manufacturing | 2018 |
| Three Spices Ltd | Hospitality | 2014 |
| TIA Lambourn Education Limited | Education | 2020 |
| Tiebreak Sport Limited | Other services | 2016 |
| Tiedata Limited | Information & communication | 1979 |
| Timber Installations Services Ltd | Construction | 2020 |
| Time for YOU Domestics Limited | Administrative & support | 2003 |
| Time for YOU Richmond Ltd | Other services | 2018 |
| Time for YOU Weybridge Ltd | Information & communication | 1982 |
| Timsbury Trustees Limited | Professional & scientific | 2019 |
| Tips Media Marketing Limited | Professional & scientific | 2024 |
| Tipster Champions Ltd | Arts & recreation | 2019 |
| TN Sales & Marketing Ltd | Wholesale & retail | 2025 |
| TOM K Heating Ltd | Construction | 2024 |
| Tom's School of Motoring Limited | Education | 2018 |
| Tonkers Limited | Hospitality | 2022 |
| Top Nails HN Ltd | Other services | 2026 |
| Topnotch IT Solutions Ltd | Information & communication | 2018 |
| Topo Tech Surveys Limited | Professional & scientific | 2024 |
| Toto Creates Limited | Information & communication | 2020 |
| Toto PR Limited | Professional & scientific | 2018 |
| Trader One Holdings Limited | Professional & scientific | 1989 |
| Transform Mental Health C.I.C. | Professional & scientific | 2020 |
| TRC Advisory Ltd | Professional & scientific | 2018 |