| Tillingbourne Syndicate Ltd | Lewes | 2026 |
| Tillingham Hall Contracts Ltd | Brentwood | 2011 |
| Tillington Top Fruit Limited | Ross-On-Wye | 2016 |
| Tillmouth Farming Limited | Cornhill-On-Tweed | 2008 |
| Tillwhim Farms Limited | Burton On Trent | 1997 |
| Tilly's OFF Lead Play Park Ltd | Grantham | 2021 |
| Tilly's Pack Limited | Bishop Auckland | 2025 |
| Tiln Farms Limited | Nottinghamshire | 1957 |
| TIM & SUE Kyte Family Business | Bridgnorth | 2002 |
| TIM & SUE Kyte Family Business Timber Ltd | Bridgnorth | 2014 |
| TIM Alden Tree Surgery Limited | Market Harborough | 1999 |
| TIM Burr Ltd | Hertford | 2017 |
| TIM DIX Ltd | Shetland | 2014 |
| TIM Fleet Trees Limited | Nantwich | 2008 |
| TIM Gredley Investments Limited | Newmarket | 2015 |
| TIM Hawkins Limited | Taunton | 2012 |
| TIM James Contractors Ltd | Llanymynech | 2014 |
| TIM Lewis Limited | Goole | 2016 |
| TIM Richardson Farms Limited | Sudbury | 2014 |
| TIM Rusbridge Eventing Limited | Cheltenham | 2014 |
| TIM W Wells Ltd | Gainsborough | 2015 |
| TIM Wells Nurseries Limited | London | 2008 |
| Timarjo Properties Limited | Kingston Upon Hull | 2012 |
| Timaru Farming Company Limited | Brigg | 2012 |
| Timb-A-Haul Limited | Dereham | 1993 |
| Timba Fishing Ltd | Fraserburgh | 2017 |
| Timber (UK) Ltd. | Glasgow | 2013 |
| Timber Forwarding Limited | Inverness | 2004 |
| Timber Harvesting & Marketing Ltd | London | 2013 |
| Timber Harvesting (Neath) Limited | Swansea | 2019 |
| Timber Horizon Ltd | Derby | 2026 |
| Timber Plant & Haulage Ltd. | Hexham | 1999 |
| Timber Project Solutions Ltd | Doncaster | 2013 |
| Timber Rise Ltd | Derby | 2026 |
| Timber Tasks Limited | Faversham | 2021 |
| Timber Trading Post Limited | Dumfries | 2002 |
| Timber Tree Surgery Ltd | Dundee | 2022 |
| Timber Valley Tree Services Ltd | Dolgellau | 2023 |
| Timber Yeti Ltd | Kettering | 2024 |
| Timber-Tech Harvesting Limited | Heathhall Dumfries | 2006 |
| Timberculture Ltd | Leeds | 2021 |
| Timberfuels Ltd | Exeter | 2025 |
| Timberheat Ltd | Thatcham | 2024 |
| Timberhub Ltd | Liphook | 2019 |
| Timberline Utilities Limited | Woodbridge | 2025 |
| Timberline-Roe Limited | Sunderland | 2012 |
| Timberplan Products Limited | Horsham | 1996 |
| Timberpride Limited | Tetbury | 1998 |
| Timberpride Waste Energy Ltd | Tetbury | 2013 |
| Timberscape Tree Care Ltd | Sudbury | 2024 |
| Timbertec (NI) Limited | Ballymoney | 2003 |
| Timbertech Global Limited | Witney | 2014 |
| Timbertrans Ltd | Invergordon | 2016 |
| Timberwood Tree Care Limited | Leatherhead | 2014 |
| Timberzone Services Limited | Penistone Sheffield | 1998 |
| Timbr Ltd | Rochdale | 2025 |
| Timbrell Farming Limited | Cirencester | 2010 |
| Timbuctu Timber Ltd. | Fraserburgh | 2011 |
| Timco Designs Limited | Somerset | 1972 |
| Time to Grow and Farm CIC | Bromsgrove | 2025 |
| Time to Grow! C.I.C. | London | 2023 |
| Time With Horses Ltd | Dingwall | 2024 |
| TIME4PAWS Ltd | Kilmarnock | 2022 |
| Timeandtidewaitfornone Ltd | London | 2026 |
| Timeless Acquisitions Ltd | Norfolk | 2014 |
| Times Dressage Ltd. | Wigan | 2017 |
| Times of Wigan Limited | Lancs | 1974 |
| Times Thoroughbreds Ltd | Lytham | 2023 |
| Timeverse Limited | Burry Port | 1991 |
| Timfor Ltd | Monmouth | 2018 |
| Timothy Clark Limited | Soham, Ely | 1973 |
| Timothy HAY Ltd | Grangemouth | 2023 |
| Timpany Limited | Blandford Forum | 1989 |
| Timports Limited | Chichester | 2008 |
| Timsbury Manor Estates Ltd | Romsey | 2010 |
| TIN Shed Mushrooms Ltd | Ely | 2026 |
| Tinbridge Limited | Perth | 2010 |
| Tindle Tree Care Ltd. | Loughborough | 2014 |
| Tingrith Lakes Ltd | Barnet | 2013 |
| Tingwall Livestock Limited | Shetland | 2005 |
| Tink and Grow Ltd | Woodbridge | 2020 |
| Tinkerbell's Trails Ltd | South Kirkby | 2023 |
| Tinne Beag Workers Co-Operative Limited | Newton Stewart | 1999 |
| Tinsley (Branston) Farms Limited | Branston | 1962 |
| Tintern Angling Club | Ross On Wye | 2026 |
| Tinwood Estate Limited | Chichester | 2009 |
| Tinwood Group Limited | Chichester | 2015 |
| Tiny Paws Ltd | Maesteg | 2021 |
| Tiny Paws of Worcestershire Limited | Stourport-On-Severn | 2021 |
| Tiny Tails Pets Services Ltd | Frodsham | 2025 |
| Tiny Terrariums Ltd | Immingham | 2025 |
| Tiny Utopia Limited | Torquay | 2018 |
| Tinyshires Ltd | Bradford | 2018 |
| Tinyveg Ltd | Stanley | 2019 |
| TIP Top Forestry Ltd | Newtonmore | 2016 |
| TIP Top Landscaping Ltd | Honiton | 2024 |
| Tip-Top Petcare Limited | Bridgwater | 2007 |
| Tipeasy Limited | Stourbridge | 1997 |
| Tiphams Agricultural Services Ltd | Dorking | 2025 |
| Tipno Limited | Chatham | 1980 |