| George Gallagher Scrap Metals Ltd | Ballinamallard | 2018 |
| George H. Vaughan (Contractors) Limited | St Albans | 1973 |
| George Howard Environmental Limited | Northwich | 2010 |
| George Parish & Sons Limited | Salford | 2002 |
| George Removals Ltd | Leicester | 2026 |
| George Reynolds UK Ltd. | Cardiff | 1966 |
| George Whittaker and Sons (Knutsford) Limited | Knutsford | 1953 |
| George&Son Grab Hire Ltd | Stanmore | 2025 |
| Geosentinel (UK) Ltd | London | 2021 |
| Geostream UK Limited | Bilston | 2011 |
| Geotom Waste Management Ltd | Brentwood | 2019 |
| German Auto Breakers Ltd | Middlesbrough | 2020 |
| German Contract Services Limited | Oswestry | 2001 |
| GES Recycling Ltd. | Newton Aycliffe | 2012 |
| GET Home Solutions Ltd | Glasgow | 2026 |
| GET IT and Move IT Ltd | Liverpool | 2026 |
| GET IT Cleared Limited | Devizes | 2012 |
| GET IT Gone Skip Hire & Waste Ltd | Stoke-On-Trent | 2026 |
| GET IT Removed Ltd | Ilford | 2026 |
| GET RID Limited | Barnet | 2019 |
| GET UP the Load Limited | Southsea | 2025 |
| GET Wasted 888 Ltd | Liverpool | 2025 |
| Getting RID Rubbish Removal Ltd | Stoke-On-Trent | 2025 |
| Geyser Water Treatment Ltd | Newton Abbot | 2005 |
| GF Partners Limited | King'S Lynn | 2009 |
| GFH Waste Solutions Ltd | Harlow | 2025 |
| GGB Skiphire and Rubbish Removal Van MAN Ltd | Belfast | 2024 |
| Ggrb Plastics Ltd. | Torquay | 2009 |
| GH Logistics & Removals Ltd | London | 2025 |
| GH Metals Limited | West Wickham | 2012 |
| GH Waste and Clearance Ltd | Gosport | 2023 |
| GH1 Recycling Ltd | London | 2025 |
| Ghands Ltd | Lossiemouth | 2024 |
| GHD Services Ltd | Doncaster | 2026 |
| GHL (Wickside) Limited | Loughton | 2013 |
| GHS Recycling Limited | Hilsea | 2002 |
| Giants Grab Hire Ltd Ltd | Reading | 2025 |
| Gibbs Waste Limited | Bracknell | 2012 |
| Gibson Waste Management Group Limited | Buntingford | 2025 |
| Gidc Group Ltd | Colchester | 2020 |
| Gigacycle Ltd | Manchester | 2013 |
| Gilbert's Recycling Limited | Kettering | 2020 |
| Gilder Environmental Ltd | Tewkesbury | 2015 |
| Gill Waste Recycling Limited | Pontypridd | 2008 |
| Gillett Environmental Ltd | Preston | 2008 |
| Gillings of Diss Limited | Carnforth | 2003 |
| Gilmerton Land Services Ltd | North Berwick | 2015 |
| Gilson Enviro Ltd | Norwich | 2022 |
| Girda Logistics Ltd | Maidenhead | 2025 |
| Give a Dog a Bone Environmental Ltd | Crawley | 2017 |
| Giveacar Limited | London | 2010 |
| Giving World | Leicestershire | 2004 |
| GJ Bowmer (Waste Disposal) Limited | Brentwood | 2000 |
| GJ Site Services Ltd | Ashford | 2016 |
| GJD Services Limited | Edinburgh | 2004 |
| Gjfn Limited | Whaley Bridge | 2019 |
| GJM Waste Consultants Ltd | Bolton | 2023 |
| GJS Contractors Ltd | Stockport | 2015 |
| GK Capital Solutions Ltd | Mitcham | 2024 |
| GK Contracts (Scotland) Limited | Dundee | 2013 |
| GK Environmental Ltd | Runcorn | 2006 |
| GK Recycling Limited | Nottingham | 2018 |
| GKE Consultancy Limited | Middlesbrough | 2022 |
| GKP Grab Hire Limited | Abingdon | 2018 |
| Gkpj Waste Management Ltd | Clacton-On-Sea | 2024 |
| Glacier Environmental Limited | Upton Cheyney | 2013 |
| Gladsmuir Operations Limited | Stockport | 2023 |
| Glamorgan Drainage Solutions Ltd | Maesteg | 2026 |
| Glamorgan Upholstery Limited | Bridgend | 1992 |
| Glangwendraeth Ltd | Carmarthen | 2011 |
| Glanua UK Limited | Bishop'S Stortford | 2015 |
| Glanvile Metals Limited | Barnstaple | 1995 |
| Glas Cymru Anghyfyngedig | Cardiff | 2000 |
| Glas Cymru Holdings Cyfyngedig | Cardiff | 2015 |
| Glasgow Wood | Glasgow | 2006 |
| Glass Avery Limited | Manchester | 2017 |
| Glass Recycling (UK) Collections Limited | Barnsley | 2016 |
| Glass Recycling (UK) Limited | Barnsley | 1974 |
| Glass Recycling (UK) Processing Limited | Barnsley | 2016 |
| Glass Recycling (UK) Trading Limited | Barnsley | 2016 |
| Glastonbury Skip Hire Limited | Glastonbury | 2012 |
| Glebe Quarry Limited | Cornwall | 1997 |
| Glen Water Limited | Bristol | 2005 |
| Glenarm Sussex Ltd | Hassocks | 2016 |
| Glenburn Water Services Limited | Dalgety Bay | 2017 |
| Glencairn Commercial Ltd | Beith | 2021 |
| Glencoe Radon GAS Centre Limited | Weston-Super-Mare | 1992 |
| Glencree Utilities Ltd | Smethwick | 2022 |
| Glencross Building Group Ltd | Stevenage | 2015 |
| Glenfarg Organics Limited | Glenfarg | 2015 |
| Glenmix Autos Limited | Croydon | 2022 |
| Glenn Drums Recycling Ltd | Co Armagh | 2005 |
| Glenside Restoration Company Limited | Belfast | 2015 |
| Glenvale Waste Ltd | Armagh | 2008 |
| Glevum Effluent Disposal Ltd | Staverton | 2024 |
| Glisten Water Ltd | Alcester | 2010 |
| GLJ Environmental Limited | Crumlin | 2013 |
| GLJ Recycling Limited | Newport | 2007 |
| Glkt Materials Recovery Specialists Ltd | Wednesbury | 2025 |
| Global Ace Recycling Limited | Birmingham | 2022 |