| T W S Facias Limited | North Lincolnshire | 2001 |
| T Whapplington Limited | Chesterfield | 2008 |
| T&A Recycling Ltd | Slough | 2023 |
| T&A Water Ltd | Fareham | 2025 |
| T&B P.Dev. & Recycling (Swindon) Limited | Swindon | 2006 |
| T&B Transport Ltd | London | 2016 |
| T&C Waste and Recycling Limited | London | 2017 |
| T&L Metals UK Ltd | Birkenhead | 2026 |
| T&M Grab and Digger Hire Ltd | Ashford | 2016 |
| T&M Grab Hire Services Ltd | Ilkeston | 2021 |
| T&M House Clearance & Cleaning Specialists Limited | Wakefield | 2009 |
| T&M Reuse Yorkshire Limited | Leeds | 2013 |
| T'S Waste Removal Ltd | London | 2020 |
| T. & L. Furniture Limited | London | 1949 |
| T. J. Cottis Transport Limited | Leigh-On-Sea | 2000 |
| T. MET Limited | | 1999 |
| T. Watts Waste Limited | Leicestershire | 2002 |
| T. Wigley & SON BUS Limited | Rotherham | 2000 |
| T.A.B.S. Technicom (UK) PLC | Alfred Gelder Street | 1992 |
| T.B.R LO Service Ltd | Bristol | 2023 |
| T.D. and A.M. Bugg (Holdings) Limited | Colchester | 2002 |
| T.D. and A.M. Bugg Limited | Colchester | 1993 |
| T.Darlington Contractors Ltd | Euxton Lane, Chorley | 2014 |
| T.G.I.Buildings Ltd | Hertford | 2018 |
| T.G.S. Doors Limited | Preston | 1985 |
| T.S (Yorkshire) Ltd | Rotherham | 2018 |
| T.W. Crowden and Daughter Limited | Newark | 2003 |
| T2T Services Ltd | London | 2019 |
| TA Innovative Waste Solutions Ltd | Chesterfield | 2006 |
| Taas Transport Ltd | Iver | 2019 |
| Tabora-Mabini Limited | Basingstoke | 2026 |
| Taclus Confidential Limited | Cardiff | 2016 |
| Tactical Pest Solutions Limited | Edinburgh | 2026 |
| Tadosi Limited | Coventry | 2021 |
| Taffy Skip Hire Ltd | Llanelli | 2025 |
| Tafoch Limited | Chalgrove | 2021 |
| TAG Industries Limited | Doncaster | 2013 |
| TAG Metals Limited | Sutton Coldfield | 2002 |
| TAG Skip Hire Todmorden Ltd | Lymm | 2025 |
| Taggart Grab Hire Ltd | Bonnybridge | 2021 |
| Tailby Brack Limited | Rugby | 1991 |
| Taisho Water Limited | Reading | 2006 |
| Taitoo Ltd | Hyde | 2011 |
| Take IT ALL Removals Ltd | Southend-On-Sea | 2025 |
| Take IT TIP IT Limited | Cardiff | 2020 |
| Take ME Elsewhere Ltd | London | 2022 |
| Take Waste Ltd | Birmingham | 2024 |
| Takes IT Away UK Ltd | Darlington | 2026 |
| Talia Aqua Ltd | London | 2025 |
| Talking Rubbish Waste Solutions Limited | Harrow | 2014 |
| Talon Environmental Limited | London | 2026 |
| Tamar Composting (East Anglia) Limited | Bedford | 2006 |
| Tamar Organic Waste Limited | Bedford | 2014 |
| Tamar Trash Ltd | Saltash | 2022 |
| Tamas and Budai Visions Ltd | Southampton | 2024 |
| Tamesis Development Ltd | London | 2019 |
| Tamworth Waste Disposal 100 Ltd | Tamworth | 2013 |
| Tandem UK Limited | Weston-Super-Mare | 2008 |
| Tanev Best Waste Removal Limited | London | 2025 |
| Tangerine Extreme Cleans Limited | Rayleigh | 2025 |
| Tank Cleaning Solutions Ltd | Leeds | 2025 |
| Tank Industrial Maintenance Limited | Sheffield | 2010 |
| Tankcare (UK) Limited | Moreton-In-Marsh | 2011 |
| Tanker and Drain Solutions Ltd | Nazeing | 2009 |
| Tanza MAN and Van Ltd | London | 2026 |
| Tanzanite Global Ltd | Buckingham | 2020 |
| TAP & Flow Services Ltd | Bognor Regis | 2025 |
| Tapco (Preservation) Limited | Braintree | 1972 |
| Taperell Environmental Limited | Selby | 2016 |
| Taprecycle Limited | Bromsgrove | 2025 |
| Tardis Environmental UK Limited | Telford | 1991 |
| Target Hygiene Limited | Cradley Heath | 2009 |
| Target Metal Recycling Limited | Kingswinford | 2010 |
| Tarian Logistics Solutions Ltd | Pontypool | 2019 |
| Tarka Metals Ltd | Exeter | 2025 |
| Tarka Recycling Ltd | Bideford | 2021 |
| Tarling Tipping Services Ltd | Hemel Hempstead | 2012 |
| Tarmac (Tyttenhanger) Limited | Birmingham | 2004 |
| Tarn-Pure Limited | Bristol | 2009 |
| Task 55 (Bucks) Ltd | Aylesbury | 2025 |
| Task London Ltd | London | 2024 |
| Taskforce Property Services Limited | Rye | 2002 |
| Tattoo Productions Limited | Cheadle Hulme | 1983 |
| Taues Ltd | Cambridge | 2024 |
| Taunton Miniskips Ltd | Taunton | 2017 |
| Taurus Environmental Limited | Dudley | 2003 |
| Taurus Trading International Limited | Oldham | 2016 |
| Taurus Waste Recycling (Holdings) Limited | Farnborough | 2001 |
| Taurus Waste Recycling Limited | Farnborough | 1980 |
| Tavismode Limited | Daventry | 1987 |
| Tavoni Ltd | Liverpool | 2017 |
| Tawmix Recycling Limited | Gillingham | 2013 |
| Tawnywood Recycling Limited | Chesterfield | 2014 |
| Taxy Group Ltd | Luton | 2025 |
| TAY Toilets & Tanks Ltd | Perth | 2024 |
| Taylin Marine Limited | Lymington | 2018 |
| Taylor & Chang Removals Ltd | Sutton | 2026 |
| Taylor Made Energy Savers Limited | Gwent | 1989 |
| Taylor Waste Solutions Ltd | Flint | 2022 |
| Taylor's Skip Hire Ltd | Sawbridgeworth | 2020 |