| TC Car Hire Limited | Administrative & support | 2024 |
| TC Design Consulting Limited | Professional & scientific | 2019 |
| TC Groundworks Ltd | Construction | 2021 |
| TC Hold Limited | Real estate | 2013 |
| TC Holdings Yorkshire Limited | Financial services | 2025 |
| TC Murray Harcourt Limited | Professional & scientific | 2022 |
| TC Plumbing & Heating (Yorkshire) Ltd | Construction | 2022 |
| TC Resource Technology Ltd | Information & communication | 2017 |
| TC2 Developments Ltd | Real estate | 2018 |
| TC2 Holdings Limited | Real estate | 2019 |
| TC2 Services Ltd | Professional & scientific | 2019 |
| TCC Pension Fund Trust Limited | Professional & scientific | 1992 |
| TCC Properties Ltd | Real estate | 2025 |
| Tccp (Clarence Dock) Limited | Real estate | 2007 |
| TCE Retail Limited | Wholesale & retail | 2020 |
| Tcfm Investments Ltd | Real estate | 2023 |
| TCG Future Limited | Real estate | 2020 |
| TCG Product Management Ltd | Professional & scientific | 2021 |
| TCG UP North Ltd | Wholesale & retail | 2026 |
| Tchapda Limited | Administrative & support | 2025 |
| Tcjw Group Ltd | Information & communication | 2025 |
| TCK Cleaning Ltd | Administrative & support | 2019 |
| TCL Holdco 1 Limited | Construction | 2025 |
| TCL Holdco 2 Limited | Construction | 2026 |
| TCL Life Properties Limited | Real estate | 2015 |
| TCL Properties Limited | Real estate | 2022 |
| TCL SPV 1 Limited | Construction | 2025 |
| Tcmaholdings Ltd | Wholesale & retail | 2024 |
| TCP Bidco (California) Limited | Financial services | 2017 |
| TCP Topco (California) Limited | Financial services | 2017 |
| TCS (9 Cheapside) Limited | Real estate | 2016 |
| TCS (Bolton) Limited | Extraterritorial | 2000 |
| TCS (Bothwell Street) Limited | Extraterritorial | 2001 |
| TCS (Brownsfield Mill) Limited | Real estate | 2016 |
| TCS (Greenhithe) Limited | Real estate | 2002 |
| TCS (Isleworth) Limited | Real estate | 2002 |
| TCS (Merrion Hotel) Limited | Hospitality | 2016 |
| TCS (Merrion House JVCO1) Limited | Administrative & support | 2013 |
| TCS (Merrion House JVCO2) Limited | Administrative & support | 2013 |
| TCS (Mill Hill) Limited | Real estate | 2002 |
| TCS (Milngavie) Limited | Real estate | 2007 |
| TCS (Parliament Street 1) Limited | Real estate | 2003 |
| TCS (Parliament Street 2) Limited | Real estate | 2003 |
| TCS (Residential Conversions) Limited | Real estate | 2000 |
| TCS (Residential) Limited | Real estate | 2001 |
| TCS (Rochdale JV) Limited | Real estate | 2011 |
| TCS (Rochdale Management) Limited | Real estate | 2011 |
| TCS (Tariff Street) Limited | Real estate | 2015 |
| TCS (Whitehall Plaza) Limited | Real estate | 2015 |
| TCS Development Management (Merrion) Limited | Real estate | 2013 |
| TCS Eastgate Limited | Real estate | 2008 |
| TCS Energy Limited | Extraterritorial | 2002 |
| TCS Freehold Investments Limited | Real estate | 1998 |
| TCS Holdings Limited | Real estate | 1988 |
| TCS Leasehold Investments Limited | Real estate | 1998 |
| TCS Park ROW Limited | Real estate | 2012 |
| TCS Piccadilly Limited | Extraterritorial | 2001 |
| TCS PLC | Extraterritorial | 2001 |
| TCS Properties Limited | Financial services | 1993 |
| TCS Property Management Limited | Real estate | 2004 |
| TCS Solar Limited | Real estate | 2004 |
| TCS Trading Limited | Extraterritorial | 1995 |
| TCS Trustees Limited | Other services | 1995 |
| TCS Whitehall Riverside Limited | Real estate | 2001 |
| TCT Care Services Limited | Health & social care | 2023 |
| TCUTS360 Ltd | Other services | 2026 |
| TCY Machinery UK Limited | Wholesale & retail | 2019 |
| TD Construction (Yorkshire) Ltd | Construction | 2022 |
| TD Events Ltd | Arts & recreation | 2016 |
| TD Mechanical Limited | Professional & scientific | 2018 |
| TDC Property Maintenance Ltd | Construction | 2025 |
| TDF Invest Ltd | Financial services | 2021 |
| TDH Kitchen Ltd | Hospitality | 2025 |
| TDH Roofing & Joinery Ltd | Construction | 2024 |
| TDJ Contracts Ltd | Administrative & support | 2017 |
| TDJ Yorkshire Builders Ltd | Construction | 2024 |
| TDP (Leeds) Limited | Manufacturing | 2012 |
| TDS Consulting Services Ltd | Information & communication | 2023 |
| Tea & Water Ltd | Administrative & support | 2014 |
| Teach and Coach Tutors Ltd | Education | 2025 |
| Teagle Homes Ltd | Real estate | 2019 |
| Teagle Ltd | Real estate | 2017 |
| Teal Signs Limited | Manufacturing | 2002 |
| Teale Electrical Ltd | Construction | 2010 |
| Teale GAS Detection Installers Ltd | Construction | 2017 |
| Teale Property Ltd | Real estate | 2019 |
| Teale Property Services Ltd | Wholesale & retail | 2022 |
| Team (Impression) Holdings Limited | Manufacturing | 2007 |
| Team (Impression) Limited | Manufacturing | 2001 |
| Team a Property Ltd | Real estate | 2024 |
| Team Accessories Ltd | Wholesale & retail | 2025 |
| Team Ashfaq Ltd | Arts & recreation | 2018 |
| Team Auto Limited | Wholesale & retail | 2014 |
| Team Cherry Events Ltd | Wholesale & retail | 2020 |
| Team Event Lighting Limited | Administrative & support | 2010 |
| Team FU Martial Arts Limited | Arts & recreation | 2021 |
| Team G Properties Ltd | Real estate | 2018 |
| Team Green GAS Limited | Construction | 2018 |
| Team Logistics Limited | Transport & logistics | 2019 |
| Team Nebula Ltd | Construction | 2024 |