| Terre a Terre Limited | Hospitality | 1997 |
| Terry Orford Limited | Construction | 2003 |
| Tester and Jones Limited | Other services | 2004 |
| Tffa Limited | Households | 2004 |
| TGL Property Investments Ltd | Administrative & support | 2004 |
| Thai Barn Limited | Hospitality | 2018 |
| Thailao Limited | Hospitality | 2019 |
| THE 253 New Church Road Residents Co Limited | Households | 1998 |
| THE 37 Sedlescombe Road South, RTM Company Ltd | Households | 2006 |
| THE 6 Jameson Road (Bexhill) Freehold Company Limited | Households | 2006 |
| THE Assembled Company Limited | Hospitality | 1987 |
| THE Bakerfield Publishing Company Limited | Manufacturing | 1990 |
| THE Baxter's Field Company | Professional & scientific | 2003 |
| THE Big BAG Washing Company Limited | Extraterritorial | 2005 |
| THE Brighton PAD Limited | Households | 2000 |
| THE Brighton Smile Studio Limited | Health & social care | 2004 |
| THE Carlton (Hove) Limited | Real estate | 2002 |
| THE Creative Pumpkin Limited | Administrative & support | 2006 |
| THE Cumin Indian Ltd | Administrative & support | 2016 |
| THE Dental Imaging Company Limited | Manufacturing | 2000 |
| THE Dental LAB Limited | Health & social care | 2002 |
| THE Digital Picture House Ltd | Information & communication | 2005 |
| THE Efficient Freight Company Ltd | Transport & logistics | 1974 |
| THE Endometriosis and Fertility Clinic Limited | Health & social care | 2000 |
| THE Executive Folio Company Limited | Professional & scientific | 2004 |
| THE Filo Brewing Company Limited | Manufacturing | 2004 |
| THE Garage on the Green (Workshops) Limited | Wholesale & retail | 1998 |
| THE Halas & Batchelor Collection Limited | Information & communication | 1996 |
| THE Heathfield Partnership Trust Limited | Administrative & support | 2002 |
| THE Independent Heating Company Limited | Construction | 1987 |
| THE Launderette Limited | Other services | 2003 |
| THE Life Skills Company (Lingfield) Limited | Education | 2005 |
| THE Little Swim School Ltd | Arts & recreation | 2007 |
| THE Liversedge Design Collective LLP | | 2005 |
| THE Longford Limited Partnership | | 1995 |
| THE Marketing EYE Ltd | Professional & scientific | 2005 |
| THE Mayfield Close Residents Limited | Households | 1995 |
| THE Mical Partnership Limited | Professional & scientific | 1989 |
| THE Millrace Flats Limited | Real estate | 2006 |
| THE Natural Store Limited | Wholesale & retail | 2004 |
| THE Newick Motor Company Limited | Wholesale & retail | 1994 |
| THE Nipple Cover Collection Ltd | Wholesale & retail | 2026 |
| THE Ocean Sports Company Limited | Wholesale & retail | 1993 |
| THE Option Brokers Limited | Extraterritorial | 2005 |
| THE Personalised Gift Co. Limited | Wholesale & retail | 2020 |
| THE Plaza Store Ltd | Wholesale & retail | 2004 |
| THE Product Exchange Limited | Administrative & support | 1999 |
| THE Profit Team Limited | Administrative & support | 2000 |
| THE Property Cafe Limited | Real estate | 2005 |
| THE Purpl Co Limited | Information & communication | 2022 |
| THE Residents of 58 Ltd | Households | 2006 |
| THE Rifleman (Warninglid) Limited | | 1987 |
| THE Russell Moore Winchester Partnership | | 1991 |
| THE RYE Retreat Limited | Other services | 1999 |
| THE Silver Lady Fund Incorporating the ALL Night Travelling Cafe | Health & social care | 1941 |
| THE SIX Bells Mews Association | Households | 1992 |
| THE Treatment Rooms Limited | Other services | 2000 |
| THE Truth VS Tabloids Limited | Manufacturing | 1989 |
| THE Village Marquee Company Limited | Administrative & support | 2001 |
| THE Washing Machine Limited | Real estate | 1997 |
| THE Web Marketing Workshop Limited | Information & communication | 2003 |
| THE Wheelyboat Trust | Health & social care | 1984 |
| THE Wildflower Project Ltd | Agriculture & fishing | 2024 |
| THE Windsor Way Club Ltd | Hospitality | 2002 |
| THE Woodrow Business Centre Limited | Administrative & support | 2004 |
| THE Wright Hair Studio Limited | Other services | 2003 |
| Theclinic Ltd | Health & social care | 1999 |
| Theora Financial Planning Limited | Financial services | 2002 |
| Therapeia Ltd | Health & social care | 2006 |
| Thermal Technology Consultancy Ltd. | Professional & scientific | 1991 |
| Thick & Tight Limited | Arts & recreation | 2021 |
| Think PC Limited | Administrative & support | 2001 |
| Thirty Five Pembroke Crescent (Residents) Limited | Real estate | 1994 |
| Thirty Nine Tisbury Road Hove Limited | Households | 1996 |
| Thirty Wilbury Road Hove Management Company Limited | Hospitality | 1985 |
| Thomas Design & Graphics Limited | Administrative & support | 2007 |
| Thornwood Care Limited | Health & social care | 2007 |
| Thorpe Construction Team Limited | Construction | 2007 |
| Thwaites & Reed Clockmakers Ltd | Manufacturing | 2002 |
| Tick-It 8 Limited | Water & waste | 1987 |
| Tiebel Consulting Limited | Wholesale & retail | 2007 |
| Tilsmore Nursery Residents Association Limited | Households | 2002 |
| Timber Requirements (Seaford) Limited | Wholesale & retail | 1963 |
| Tina's Private Hire Limited | Transport & logistics | 2001 |
| Tisbury Lodge Freeholders Limited | Households | 2000 |
| Tkalis Limited | Professional & scientific | 2007 |
| Tmamo Limited | Wholesale & retail | 2001 |
| TN Nails Limited | Other services | 2015 |
| Tobel Sheet Metal Limited | Manufacturing | 1977 |
| TOM Ward Writes Ltd | Information & communication | 2017 |
| Tomsetts Transport Limited | Extraterritorial | 1979 |
| Toop Studio Ltd | Professional & scientific | 2000 |
| Top Lawn Limited | Administrative & support | 2005 |
| Topictor Limited | Professional & scientific | 1998 |
| Topspace Limited | Hospitality | 1986 |
| Torch Consultants Limited | Information & communication | 1997 |
| Tower Mill Residents Company Limited | Real estate | 1981 |
| Towerscope Limited | Real estate | 1989 |
| TPS Motorcycles Limited | Wholesale & retail | 2007 |
| Trade Carpets (Southern) Limited | Water & waste | 1997 |