| THE Woodland Woom C.I.C. | Chelmsford | 2021 |
| THE Woodlander Initiative Limited | Warminster | 2023 |
| THE Woodlands Farm Trust | Kent | 1995 |
| THE Woodpeckers Firewood Ltd | Saxmundham | 2024 |
| THE Woodshed Timber Ltd | Darlington | 2022 |
| THE Woodside Partnership Ltd | Nantwich | 2025 |
| THE Woodsman Ltd | Evesham | 2023 |
| THE Woodsman Project Ltd | Redhill | 2022 |
| THE Woodyard Farm Ltd | Grange-Over-Sands | 2026 |
| THE Woof Top Hotel Ltd | Crumlin | 2025 |
| THE Woolley Farm Ltd | Bury St. Edmunds | 2019 |
| THE Worcestershire Hunt Limited | Redditch | 2003 |
| THE World BEE Project CIC | London | 2014 |
| THE World Preservation Foundation Ltd | Newhaven | 2018 |
| THE Worm House Ltd | Oldham | 2020 |
| THE Worm MAN Ltd | Broadstone | 2022 |
| THE Worstead Larder Ltd | North Walsham | 2025 |
| THE Wren Cat Hotel Ltd | Wymondham | 2025 |
| THE Wrexham Honey Company Ltd | Wrexham | 2024 |
| THE Wright Family Dairy Limited | Cannock | 2026 |
| THE Wyre Community Land Trust | Bewdley | 2007 |
| THE Yappy Yard Ltd | Canvey Island | 2025 |
| THE York and Ainsty (South) Hunt Limited | Selby | 2021 |
| THE Yorkshire Chip Company Limited | York | 2026 |
| THE Yorkshire PEA Company Limited | Driffield | 2009 |
| THE Yorkshire Woof (Daycare) Ltd | York | 2026 |
| THE Yorkshire Woof (Walking) Ltd | York | 2026 |
| THE Youth Corporation Limited | Brockenhurst | 1992 |
| THE Zero Carbon Cattle Company Limited | Ballymena | 2020 |
| THE Zero Miles Meat Company Ltd | Wokingham | 2026 |
| The-Cactus-Archive Ltd | Camborne | 2020 |
| The-Mad-Ox (Dorset) Ltd | Stalbridge | 2014 |
| Theaker Farming Ltd | Barnsley | 2024 |
| Thealcha Limited | Winchester | 2015 |
| Thebarn@Sandstone Ltd | Northwich | 2022 |
| Thebeardedplantaholic Limited | Malvern | 2024 |
| Thedrydocks Ltd | London | 2023 |
| Thegaskellgardenproject CIC | Bolton | 2020 |
| Thegreenlife Limited | Bournemouth | 2024 |
| Thejesterofcorals Ltd | Portsmouth | 2025 |
| Theland Agriculture Ltd | Lincoln | 2025 |
| Thema Business and Management Consulting Ltd. | Leicester | 2014 |
| Themakeupstore Ltd | Liverpool | 2019 |
| Themis Advisors Ltd | Wadhurst | 2009 |
| Then Estates Ltd | Newcastle Upon Tyne | 2021 |
| Thenewmarket Ltd | Liverpool | 2019 |
| Thenford Grounds Farm Ltd | Southam | 2025 |
| Thenhurst Agricultural Limited | Twickenham | 1977 |
| Theoaktreefarm Ltd | Carnhell Green | 2020 |
| Theodore Williams Farriery Ltd | Badminton | 2024 |
| Theplantemporium Ltd | Lincoln | 2023 |
| Therapi Natural Products Ltd | Chipping Norton | 2006 |
| Theraplate UK Limited | Sleaford | 2018 |
| Theraplate Yorkshire and North Lincs Ltd | Doncaster | 2022 |
| Thereasa Greens Limited | Blackburn | 2024 |
| Therme Hydroponics Farm Solutions Limited | Thame | 2021 |
| Therobustcharcoalcompany Ltd | Liverpool | 2024 |
| Thesecurefencingcompany Ltd | London | 2022 |
| Thetreeman Limited | Torquay | 2018 |
| Thetreemann Ltd | London | 2022 |
| Theydon Growers Limited | Ongar | 1987 |
| THF Property Limited | Newark | 2017 |
| Thick AS a Plank Limited | Sykehouse | 2005 |
| Thickpenny Produce Limited | Spalding | 2007 |
| Thimbleby Farms Limited | Northallerton | 1996 |
| Thimbleby Ltd | Spalding | 2017 |
| Things Films Ltd | Crediton | 2018 |
| Thinkman Limited | Llanrhaeadr Ym Mochant | 2009 |
| Thinktrees Ltd | Bishop'S Stortford | 2010 |
| Third Stellar Forestry (General Partner) Limited | Liverpool | 2012 |
| Thirkleby Livestock Limited | Thirsk, | 1964 |
| Thirlwell Forestry Limited | Gateshead | 2011 |
| Thirsty Farmer Limited | Loughborough | 2019 |
| THIRTEEN22 Consulting Limited | Watford | 2011 |
| Thirty Acre Farm Limited | Welwyn | 2026 |
| Thirty Acre Stud Limited | Epsom | 2021 |
| This Advisory Limited | Liss | 2015 |
| Thistle & Hive Ltd | Renfrew | 2025 |
| Thistle Farm Construction Limited | Stretton On Dunsmore | 2010 |
| Thistle Street One Limited | Aberdeen | 2009 |
| Thistlebrook Farms Limited | Aylesbury | 1963 |
| Thistledown Cowford Farms Limited | Kenilworth | 2018 |
| Thistledown Farm Meadow Limited | Shepton Mallet | 2021 |
| Thistledown Farms Limited | Kenilworth | 1997 |
| Thistlelane Limited | Edinburgh | 2008 |
| Thistlerun Gundogs Ltd | Swaffham | 2024 |
| Thistleton Farms Limited | Wisbech | 2002 |
| Thomas & Abley Limited | Kidderminster | 2012 |
| Thomas & SON Farm Ltd | Pontypridd | 2025 |
| Thomas & Vint Limited | Banbury | 2009 |
| Thomas & Wilson Farming Limited | Shrewsbury | 2022 |
| Thomas a. Sands Limited | Perth | 2002 |
| Thomas and Andrew Botanix Limited | Llandrindod Wells | 2020 |
| Thomas Avenue Farm Ltd | Whitchurch | 2022 |
| Thomas Beazley & Sons Limited | Bedford | 1961 |
| Thomas Brothers Group Limited | Newport | 2016 |
| Thomas Burton Estates Ltd | Stockton On Tees | 2024 |
| Thomas Clark & Sons Limited | | 2003 |
| Thomas Contractors (AG) Limited | Montgomery | 2011 |
| Thomas Farming Limited | Knighton | 2012 |