| A-Z Skips Limited | Bromsgrove | 2001 |
| A-Z Waste Management Ltd | Kiderminster | 2023 |
| A. & V. Squires Plant Co. Limited | Southwell | 1971 |
| A. Bird Biomass Ltd | Herne Bay | 2022 |
| A. C. Morrison Limited | Epping | 1999 |
| A. D. Veale Water Treatment Limited | Eye | 2002 |
| A. Mccall & Sons (Houghton-Le-Spring) Limited | Houghton-Le-Spring | 2004 |
| A. S. Autos Leicester Limited | Leicester | 2011 |
| A.B Morrison Limited | Cardiff | 2018 |
| A.B-Metals Ltd | Thornton-Cleveleys | 2018 |
| A.B. Grabs Limited | Stapleford | 2025 |
| A.B.F. Limited | London | 1933 |
| A.B.H. Metals Limited | West Midlands | 2006 |
| A.B.S. Skip Hire Limited | Walsall | 1980 |
| A.Brooks Services Limited | Benfleet | 2000 |
| A.C Waste and Removals Ltd | London | 2025 |
| A.C. Vehicle Recycling Limited | Purfleet | 2001 |
| A.C.M.T. Limited | Bath | 2001 |
| A.D.S. Recycling Limited | Warrington | 1998 |
| A.D.S. Skip Hire Ltd | Folkestone | 2008 |
| A.G Enterprises Limited | Wingate | 2009 |
| A.H.Nicholls & Sons Limited | Chelmsford | 1956 |
| A.J Plumbing & Drainage Ltd | London | 2017 |
| A.J.B. Haulage Ltd | Feltham | 2015 |
| A.J.C. Road Sweepers Ltd | Oldham | 2005 |
| A.J.Carter Services Ltd | London | 2025 |
| A.J.M Tyres Ltd | Hertford | 2023 |
| A.J.M. Recycling Centre Limited | London | 2015 |
| A.J.Man & Van Ltd | Manchester | 2020 |
| A.K. 24/7 Recovery Ltd | Birmingham | 2015 |
| A.K. Environmental Consultancy Limited | Malvern | 1996 |
| A.L. Griffiths Limited | Pontypridd | 2021 |
| A.L.L. Waste Collection Ltd | Cromer | 2024 |
| A.M Waste Management Ltd | King'S Lynn | 2025 |
| A.M. Environmental Management Limited | Nailsea | 2001 |
| A.M.B Environmental Services Ltd | Ravensthorpe | 2012 |
| A.M.R Waste Removals Limited | London | 2022 |
| A.M.S. Cleaning Services (South West) Ltd | Wells | 2012 |
| A.M.S. Upholstery Limited | North Shields | 1997 |
| A.N.2000 Limited | Leeds | 1988 |
| A.P.G. Enterprises Limited | Essex | 2002 |
| A.P.M. Metals Limited | Sittingbourne | 1965 |
| A.P.M. Services Limited | London | 2023 |
| A.R.S Solutions Group Ltd | London | 2026 |
| A.S Courier & Removal Services Ltd | London | 2025 |
| A.S Industries Ltd | Southampton | 2021 |
| A.S.A.P. Contracts Ltd. | Lanarkshire | 1998 |
| A.S.A.P. Recovery Limited | Dudley | 1998 |
| A.S.H. Environmental Limited | Halstead | 2021 |
| A.S.L Skip and Grab Hire Ltd | Derby | 2025 |
| A.T.G. Asbestos Services Ltd | Wickford | 2015 |
| A.Vlies Northwich Metals Limited | Altrincham | 2000 |
| A.W. Sweeper Hire Limited | Goole | 2016 |
| A.W.A Drains Ltd | Bristol | 2024 |
| A.W.E. Instruments Limited | Beaconside | 1990 |
| A.W.O. Recycling Limited | Huntingdon | 2012 |
| A1 Budget Skips Ltd | Wimborne | 2007 |
| A1 Chemical Waste Management Ltd | Liverpool | 2011 |
| A1 Clearance and Maintenance Ltd | London | 2026 |
| A1 Clearance and Recycling Limited | Beccles | 2019 |
| A1 Clearances (North West) Ltd | Mold | 2015 |
| A1 Drain Repairs Ltd | | 2005 |
| A1 Global Construction Ltd | Dartford | 2025 |
| A1 Home and Garden Care Ltd | Norwich | 2023 |
| A1 Home and Gardens Ltd | Darlington | 2018 |
| A1 M1 Aggregates Ltd | Leeds | 2025 |
| A1 Metal Recycling (2014) Limited | Lincoln | 2014 |
| A1 Mini Skips Limited | Staffordshire | 2004 |
| A1 MIX Waste Services Ltd | Andover | 2026 |
| A1 Mobile Limited | Nottingham | 2001 |
| A1 Muckaway Limited | Hartlepool | 2006 |
| A1 Plastics Midlands Ltd | Birmingham | 2025 |
| A1 Recovery & Dismantlers Ltd | Bedlington | 2009 |
| A1 Recycled Aggregates Limited | Barnet | 2024 |
| A1 Recycling & Consultants Limited | Nuneaton | 2010 |
| A1 Recycling and Renewables NW Ltd | Bolton | 2023 |
| A1 Rubbish Removal Ltd | Darlington | 2015 |
| A1 Sandwell Skips Ltd | Smethwick | 2020 |
| A1 Services (Manchester) Limited | Maidenhead | 2003 |
| A1 Signs & Repairs (Swindon) Limited | Bessborough Road | 1992 |
| A1 Skip Hire (Stoke) Limited | Stoke-On-Trent | 2023 |
| A1 Skip Hire Ltd | Lytham St. Annes | 2002 |
| A1 Skips (S-O-T) Limited | Stoke-On-Trent | 2008 |
| A1 Skips Ltd | Hoddesdon | 2019 |
| A1 Skips Newport Ltd | Ebbw Vale | 2020 |
| A1 Supa Skips Ltd | Preston | 1998 |
| A1 Uplifts Ltd | Glasgow | 2014 |
| A1 Waste Management Ltd | Ebbw Vale | 2020 |
| A1 Water Treatment Limited | Rochester | 2022 |
| A1 Wokingham WET Waste Limited | Wokingham | 2003 |
| A10 Pest Control Limited | Kings Lynn | 2004 |
| A19 Pro Clean Ltd | Hartlepool | 2024 |
| A2B Aggregates Ltd | Wolverhampton | 2010 |
| A2B House Clearance & Waste Removals Ltd | Leeds | 2025 |
| A2B Recycling Ltd | Gateshead | 2025 |
| A2B Skip Hire Ltd | Newtownabbey | 2019 |
| A2B Skip Hire Manchester Ltd | Leyland | 2016 |
| A2B Tipper Hire Ltd | Wirral | 2015 |
| A2B Van Solutions Ltd | Worcester Park | 2026 |
| A2B Waste Limited | Wirral | 2014 |