| Tunnard Ltd | Boston | 2024 |
| Tunnard Straw Ltd | Boston | 2021 |
| Tunnel Bank Farming Company Limited | Boston | 1998 |
| Tunnel Tech Limited | Stockbridge | 1984 |
| Tunnel Tech North Limited | Leckford, Stockbridge | 1989 |
| Tunstall Allotments 2021 Ltd | Sunderland | 2021 |
| Tuple Solutions Limited | Southend-On-Sea | 2015 |
| Tuplin and SON (Farmers and Produce Merchants) Limited | Boston | 1976 |
| Turas Solutions Ltd | Maghera | 2021 |
| Turf Centre Limited | Liss | 2012 |
| Turf Farm Services Ltd | St. Helens | 2017 |
| Turf Growers Direct Limited | Cadishead | 2023 |
| Turf in Essex Limited | Colchester | 2017 |
| Turf in London Limited | Colchester | 2020 |
| Turfahun Farm Ltd | Bushmills | 2015 |
| Turfgrass Consultancy Ltd | Gainsborough | 2025 |
| Turfgrass Services International Limited | York | 1989 |
| Turfing Raising Poultry Ltd | Oxted | 2025 |
| Turfland Farms Limited | Kettering | 2009 |
| Turin Home Farm Limited | Glasgow | 2009 |
| Turing Complete Solutions Ltd | Bedford | 2010 |
| Turkey Shed Enterprises Limited | London | 2023 |
| Turn Left & Turn Right Ltd | London | 2026 |
| Turnbull Agricultural Ltd | Driffield | 2019 |
| Turnbull Farming | Penrith | 2008 |
| Turnbull Tree Care Limited | Perth | 2015 |
| Turndale Limited | Rugeley | 2011 |
| Turner & Hoof Ltd | Pickering | 2025 |
| Turner & Pooch Ltd | Rochford | 2011 |
| Turner (Winterbourne Stoke) Limited | Salisbury | 2010 |
| Turner Agricultural Services Ltd | Fakenham | 2014 |
| Turner Brothers (Huddersfield) Limited | Holmfirth | 2002 |
| Turner Equestrian Services Limited | Dorchester | 2018 |
| Turner Farms Limited | Holmfirth | 2000 |
| Turner Shellfish Ltd | Deganwy | 2025 |
| Turners Farm Ltd | Northampton | 2026 |
| Turners Farmers & Butchers Limited | Darwen | 2012 |
| Turners Tree Services Ltd | Laurencekirk | 2021 |
| Turnershill Tree Surgeons Ltd | Haywards Heath | 2019 |
| Turneys Limited | Banbury | 1979 |
| Turnhold Estates Limited | London | 1999 |
| Turnhurst Livestock Limited | London | 2025 |
| Turning Lane Farm Limited | | 1963 |
| Turning Tides Ltd | Gravesend | 2022 |
| Turning Wild Limited | Torquay | 2025 |
| Turnlaw Farm Ltd | Glasgow | 2021 |
| Turnstone Farming Company Limited | Moreton - In - Marsh | 1999 |
| Turquoise (Eco) Ltd | Derby | 2026 |
| Turves Farms Limited | Peterborough | 2017 |
| Turvey Farms Limited | Nottinghamshire | 1995 |
| Tushingham Equine Limited | Whitchurch | 2024 |
| Tusmore Holdings Limited | Bicester | 2009 |
| Tusmore Park Farms Limited | Bicester | 1987 |
| Tustins Group Limited | Witney | 2019 |
| Tuttington Farms Limited | Aylsham Norfolk | 1956 |
| Tutum Bird & Pest Management Ltd | London | 2024 |
| Tvar Farming Company Limited | Edinburgh | 2018 |
| TVR Farming Ltd | Carlisle | 2024 |
| TW + PT Moss Ltd. | Doncaster | 2003 |
| TW Agri Limited | Crewe | 2026 |
| TW Farm Ltd | Gillingham | 2020 |
| TW Johnston | Carlisle | 2020 |
| Twain Agriculture Limited | Louth | 2017 |
| TWB Farms Ltd | Hammerwich | 2025 |
| Tweed Appreciation Limited | Leamington Spa | 2023 |
| Tweed Bullz Limited | Berwick Upon Tweed | 2020 |
| Tweed Forum Limited | Melrose | 1998 |
| Tweedbeats Limited | Coldstream | 2014 |
| Tweedfence Management Limited | Clitheroe | 2002 |
| Tweedhill Limited | Glasgow | 2001 |
| Tween Farming Limited | Norwich | 1974 |
| Tweenhills Contracting Limited | Gloucester | 2025 |
| Tweenhills Farm + Stud Limited | Gloucester | 1995 |
| Tweets Limited | Clacton-On-Sea | 2007 |
| Twentyseven Management Ltd | London | 2021 |
| TWG PIG Co Limited | Clifton Down | 2000 |
| TWH Farriers Ltd | Rugeley | 2007 |
| TWH Tree Services Limited | Colchester | 1996 |
| Twin Beeches Limited | Northampton | 2023 |
| Twin Crafts Ltd | Wolverhampton | 2026 |
| Twin Lakes Fishery Limited | Louth | 2026 |
| Twin Oak Tree and Garden Specialist Ltd | Hitchin | 2026 |
| Twin Oaks Stables Limited | Malton | 2026 |
| Twin Traders Ltd | Fordingbridge | 2021 |
| Twineham Timber Limited | Haywards Heath | 2010 |
| Twinhoe Game Ltd | Radstock | 2014 |
| Twinseas Engineering Ltd | Swanage | 2014 |
| Twinstead Hall Farms,Limited | Sudbury | 1946 |
| Twist Condiments Limited | Reading | 2016 |
| Twisted Stem Ltd | Woking | 2025 |
| Twistillery Ltd | Banff | 2024 |
| Twiston-Davies Bloodstock Limited | Cheltenham | 2016 |
| Twizell Estates Limited | Newcastle Upon Tyne | 2020 |
| Twizell Poultry (Ponteland) Limited | Newcastle Upon Tyne | 1983 |
| Twlcy Limited | Haverfordwest | 2024 |
| Two and a Half Fields Limited | Peterborough | 2021 |
| Two Birds and a Beak Limited | Grantown-On-Spey | 2026 |
| Two Boys IOS Ltd | Isles Of Scilly | 2025 |
| Two Brothers II Limited | Exmouth | 2019 |
| Two Browns Farm Ltd | Chelmsford | 2026 |