| Palm Environmental Services Ltd | Norwich | 2020 |
| Palm Recycling Limited | Kings Lynn | 2010 |
| Palm Solutions FM Ltd | Bury St. Edmunds | 2018 |
| Palmer's Waste Removal and Cleaning Services Ltd | London | 2026 |
| Palmers Waste Ltd | London | 2026 |
| PAN African Water Solutions Limited | Wembley | 2022 |
| Panaga Services Ltd | Wrexham | 2024 |
| Panalco Limited | Alfred Gelder Street | 1991 |
| Panthera Site Services Ltd | Derby | 2023 |
| Panton Mcleod Limited | Selkirk | 1994 |
| Paper Aeroplane Environmental Ltd | Nuneaton | 2021 |
| Paper Labels 4 U Limited | Great Chesterford | 2011 |
| Paper Round Group Limited | London | 2017 |
| Paper Trade Ltd | Cardiff | 2003 |
| Paper Wagon Limited | Wolverhampton | 2002 |
| Paperback Collection and Recycling Limited | Manchester | 1995 |
| Paperchain (South West) Co-Operative Limited | Crediton | 1990 |
| Paperchase Environmental Limited | Preston | 2009 |
| Paperlink International Limited | Newbury Park | 2007 |
| Papermarc Recycling Limited | Bury | 2001 |
| Papersort UK Limited | Tarporley | 2010 |
| Paperwise Limited | York | 2005 |
| Papi Removals & Services Limited | London | 2025 |
| Papilo Holdings Limited | Swinton | 2019 |
| Papilo Limited | Swinton | 2005 |
| Papilo Organics Limited | Manchester | 2025 |
| Paprec Energies Glenfarg Limited | Stallingborough | 2022 |
| Paprec Energies Grimsby Operations Limited | Stallingborough | 1999 |
| Paprec Energies Recovery Limited | Stallingborough | 2022 |
| Paprec Energies UK Future 3 Limited | Stallingborough | 2022 |
| Papyrus RRR Limited | Gravesend | 2012 |
| Paqualyte Ltd | Portsmouth | 2020 |
| Paragon Waste (UK) Ltd | Londonderry | 2014 |
| Paragram Limited | Cardiff | 2011 |
| Parallel Mind Systems Ltd | Grays | 2025 |
| Paramount Haulage Limited | London | 2007 |
| Paramount Home Improvements JML Limited | Middlesbrough | 2025 |
| Paramount Shopfitting Company Limited | Leighton Buzzard | 1961 |
| Paramount Waste Carriers Ltd | Dewsbury | 2022 |
| Parc Gwynfryn Services Limited | Cardigan | 2014 |
| Park 'N' Load Metal Recycling Limited | Buntingford | 2011 |
| Park Farms Bewdley Limited | Bewdley | 1996 |
| Park's Tanks Ltd | Grange-Over-Sands | 2022 |
| Parkers Recycling Limited | Norwich | 2001 |
| Parkes Recycling Limited | Chesterfield | 2020 |
| Parkmount Recycling Ltd | Bradford | 2023 |
| Parks Skips Ltd | Bedlington | 2020 |
| Parksgate Ltd | Bournemouth | 2013 |
| Parkside Service Company Limited | Honiton | 1982 |
| Parkstone Waste Management Limited | Saffron Walden | 2024 |
| Parkway Recycling Ltd | Birmingham | 2014 |
| Parkwood Recovery Ltd | Preston | 2023 |
| Parmar Refinery Ltd | Watford | 2015 |
| Parrot Environmental Limited | Wrexham | 2022 |
| Parry and Evans Limited | Welshpool | 2008 |
| Parsons Environmental Services Ltd | Manchester | 2017 |
| Parsons Heating & Bathrooms Limited | Hove | 2015 |
| Partmart Automotive Recycling Ltd | Hengoed | 2018 |
| Parton Agriplant Limited | Staffordshire | 2002 |
| Pascf Ltd | St. Leonards-On-Sea | 2026 |
| Pasha Polymers Limited | Liverpool | 2021 |
| Pasha Recycling Services Ltd | Liverpool | 2018 |
| Pass Commodities Limited | Sheffield | 2018 |
| Pass IT on Rotherham CIC | Rotherham | 2025 |
| PAT Doherty Ltd | Londonderry | 2008 |
| PAT Munro Waste Services Limited | Alness | 2021 |
| PAT Smith Environmental Ltd | Chesham | 2018 |
| Patersons of Thirsk Limited | Thirsk | 2004 |
| Patersons Skip Hire Limited | Dundee | 2019 |
| Patersons Waste Management Limited | | 1983 |
| Pattisons (Anglia) Ltd | Great Yarmouth | 2015 |
| Patton Environmental Services UK Ltd | Sutton | 2005 |
| Paul & Daniela Services Ltd | South Ockendon | 2021 |
| Paul (BIN & Gone) Limited | Manchester | 2026 |
| Paul Collins Limited | Barnet | 1994 |
| Paul Crane Consulting Limited | Crewe | 2017 |
| Paul Gowland Enterprises Limited | Sunderland | 2015 |
| Paul Graveney Consulting Limited | Cheadle | 2018 |
| Paul James Tyres Limited | Leeds | 2009 |
| Paul Marc COX Limited | Staines-Upon-Thames | 2019 |
| Paul Richardson Recycling Limited | Sudbury | 2011 |
| Paul Riches Skips Limited | Milton Keynes | 1998 |
| Paul Riddel Skips Limited | Uttoxeter | 2003 |
| Paul V. Castle Group Limited | Doncaster | 2011 |
| Paul's Mini Skips Ltd | Eastbourne | 2013 |
| Paul's Skips Limited | Eastbourne | 2013 |
| Paulex Environmental Limited | Exeter | 2004 |
| Paulownia Capital Limited | St. Helens | 2015 |
| Pavilion Reproductions (Brighton) Limited | East Sussex | 1972 |
| Pawfect Cleanup Limited | Grantham | 2025 |
| Pawfect Waste Solutions Ltd | Doncaster | 2025 |
| Paws and Claws Pet Waste Removal Ltd | Bury St. Edmunds | 2025 |
| PAX Foster Limited | Glasgow | 2024 |
| Paxa Group Limited | Woking | 2026 |
| Paxton Scrap Metals Ltd. | North Berwick | 2004 |
| Paxton Springs Limited | Cirencester | 2011 |
| PAY a Tone Limited | Basildon | 2025 |
| PAY AS YOU Throw Ltd | Royal Victoria Docks | 2020 |
| Paynes Metal Recycling Limited | Buckinghamshire | 2005 |
| PB Clearance Limited | Potters Bar | 2023 |