| Studio Mexico Ltd | Professional & scientific | 2025 |
| Style 2000 (Eastwood) Limited | Other services | 2002 |
| SUA Ltd Holdings Limited | Financial services | 2025 |
| Suat Ltd | Hospitality | 2025 |
| Suggy's Gym Ltd | Arts & recreation | 2001 |
| Sunseeker Ltd. | Wholesale & retail | 2001 |
| Supervision Tele-Electronics (Western) Limited | | 1977 |
| SUS Holdco 10 Limited | Financial services | 2025 |
| SUS Holdco 2 Limited | Financial services | 2025 |
| SUS Property Holdco Limited | Financial services | 2025 |
| Sutton Express UK Ltd Ltd | Wholesale & retail | 2017 |
| Swallow Hill Homes Barlings Lane Limited | Construction | 2019 |
| Swallow Hill Homes Limited | Construction | 2005 |
| Swallow Hill Homes Middleton Crescent Limited | Financial services | 2020 |
| SWC Energy Systems Ltd | Construction | 2020 |
| Sweet Today Limited | Real estate | 2004 |
| T & J Industrial Roofing Limited | Construction | 2003 |
| T & T Consultancy (UK) Limited | Extraterritorial | 2007 |
| T Drabble Construction Limited | Construction | 2002 |
| T Land Limited | Real estate | 2007 |
| T Street Limited | Other services | 2003 |
| T.C. Threads Limited | Wholesale & retail | 1982 |
| T.R. Smith & Sons Builders Limited | Construction | 2000 |
| Tagence Limited | Wholesale & retail | 2025 |
| Tami Plumbing Ltd | Construction | 2024 |
| Tanvic Investment Holdings Limited | Financial services | 2025 |
| Taste of Everest Limited | Hospitality | 2024 |
| Tax Assist Limited | Other services | 1996 |
| TBW NO.1 Limited | Extraterritorial | 2015 |
| Teammc Ltd | Wholesale & retail | 2023 |
| Techbunker Ltd | Information & communication | 2016 |
| Techina Limited | Information & communication | 2019 |
| Tegometall Grantham Productions Limited | Manufacturing | 1995 |
| Tegometall Property Services Limited | Real estate | 1992 |
| Teleion Limited | Real estate | 2006 |
| Tennant Rubber Limited | Manufacturing | 1995 |
| THE Atlas Discovery Holiday Company Ltd | Administrative & support | 2014 |
| THE Barcode Warehouse Limited | Manufacturing | 1999 |
| THE Goode Life Limited | Professional & scientific | 2007 |
| THE Guild of Air Traffic Control Officers | Professional & scientific | 2000 |
| THE Hair and Beauty Company (UK) Limited | Other services | 2003 |
| THE Lawns GH Retford Ltd | Real estate | 2024 |
| THE Links Company Holdings Limited | Real estate | 2025 |
| THE Little Kitchen Factory Limited | Administrative & support | 2004 |
| THE Macmaster Limited | Information & communication | 2026 |
| THE Nottingham Arts Theatre Limited | Arts & recreation | 2000 |
| THE Nottingham Funeral Company Limited | Other services | 1986 |
| THE Pakistan Centre Nottingham Limited | Extraterritorial | 2006 |
| THE Pear Consultancy Group Limited | Administrative & support | 2025 |
| THE People Element Limited | Professional & scientific | 2007 |
| THE QMJ Group Limited | Information & communication | 1924 |
| THE Reflex Group Limited | Manufacturing | 2001 |
| THE Television Workshop Ltd | Information & communication | 2007 |
| THE Valve Shop Car Spares Limited | Wholesale & retail | 2006 |
| THE Viking Builder (U.K) Ltd | Construction | 2024 |
| Thurman Family Finance Ltd | Financial services | 2024 |
| Tidy Gardens Nottingham Ltd | Administrative & support | 2008 |
| Tiln Farms Limited | Agriculture & fishing | 1957 |
| Tima Ltd | Other services | 2018 |
| Timberland Construction Limited | Construction | 2002 |
| Tithe Green (Renishaw) Limited | Other services | 2026 |
| Tithe Green Limited | Other services | 2021 |
| TK Commercial Consultants Ltd | Professional & scientific | 2008 |
| Tony Starmer Transport Limited | Transport & logistics | 1997 |
| Total Aggregates Limited | Construction | 2004 |
| Town & City Intelligence Ltd | Wholesale & retail | 2007 |
| Townscape Products Limited | Manufacturing | 1974 |
| Trainright UK Limited | Extraterritorial | 2011 |
| Traybrand Limited | Real estate | 1990 |
| TRD Commercial Properties Limited | Construction | 2005 |
| Treadsure Limited | Manufacturing | 2002 |
| Treblemen Limited | Professional & scientific | 2003 |
| Tregarthen Ltd | Hospitality | 2018 |
| Trent Castings Limited | Manufacturing | 1984 |
| Trevor Muir Limited | Professional & scientific | 2003 |
| Troops Limited | Manufacturing | 1991 |
| Trowell Paving Limited | Construction | 2006 |
| TS Properties Leicester Ltd | Real estate | 1997 |
| Tuffstuff Ltd | Manufacturing | 2001 |
| Turbine Surface Technologies Limited | Manufacturing | 2000 |
| Turvey Farms Limited | Agriculture & fishing | 1995 |
| TWN Limited | Administrative & support | 2005 |
| UCD (Holdings) Limited | Financial services | 2004 |
| UCD (Southwell) Limited | Construction | 2003 |
| UK Tool Hire Group Limited | Administrative & support | 2003 |
| Ultimation Direct Ltd | Manufacturing | 2009 |
| Unique Nail & Beauty Ltd | Other services | 2003 |
| Universal Maintenance UK Limited | Other services | 2002 |
| Usha Martin International Limited | Manufacturing | 1994 |
| Usha Martin UK Limited | Manufacturing | 1998 |
| Uwant IT Ltd | Wholesale & retail | 2022 |
| Vanichandra Limited | Health & social care | 2019 |
| Verdent Investments Limited | Real estate | 2004 |
| Vision Sure Tech Ltd | Other services | 2025 |
| Visucomm Limited | Wholesale & retail | 2000 |
| Vizra Limited | Arts & recreation | 2025 |
| Volute Limited | Information & communication | 1999 |
| W & J Linney Limited | Manufacturing | 1914 |
| W Lowe Electrical Limited | Construction | 2007 |
| W.A. Clark Limited | Construction | 2006 |