| Jellison Services Ltd | Mill Hill | 2020 |
| JEM Recycling and Waste Management Ltd | Runcorn | 2013 |
| JEM Recycling Limited | Cardiff | 1995 |
| JEM Waste Management Limited | Glasgow | 2024 |
| Jemcolin Consulting Limited | Matlock | 2006 |
| Jenda UK Limited | Irthlingborough | 2004 |
| Jennics Limited | Northampton | 2007 |
| Jennings Renovations Ltd | Basildon | 2021 |
| Jennymu Exports Limited | London | 2023 |
| JES Plumbing & Tiling Ltd. | Bridgwater | 2015 |
| JET Aire (DC) Limited | Harrogate | 1997 |
| JET Clean Maintenance Services Limited | London | 1997 |
| JET Clear Drains NW Ltd | Manchester | 2024 |
| JET Clear Limited | Liverpool | 2013 |
| JET Facilities Ltd | Chislehurst | 2014 |
| JET Flow Services Ltd | Bishops Stortford | 2026 |
| JET Flow UK (Southern) Limited | Beckenham | 2023 |
| JET Flow UK Services Ltd | Beckenham | 2017 |
| JET Line Drainage Ltd | Wigan | 2023 |
| JET Maintenance Limited | Beckenham | 2006 |
| JET ROD (SW) Ltd | Aberdare | 2021 |
| JET TEC Solutions Ltd | Dartford | 2020 |
| JET Through Limited | Birmingham | 2018 |
| Jet-Tech Limited | Grimsby | 2002 |
| JET2IT Drainage Solutions Ltd | Gloucester | 2023 |
| Jetaway Drainage Solutions Ltd | Pontefract | 2021 |
| Jetco Drainage Services Ltd | Wells | 2024 |
| Jetcot Ltd | Northampton | 2024 |
| Jetflow Drains Ltd | Manchester | 2025 |
| Jetforce Limited | Sudbury | 2021 |
| Jetnflow Ltd | Bristol | 2024 |
| Jetstream Drain Cleaning Limited | Southampton | 2015 |
| Jetsweep Limited | Ammanford | 1988 |
| Jettadrain Ltd | Newton Abbot | 2004 |
| Jetter J Drainage Services Ltd | Wellingborough | 2026 |
| Jettex Ltd | Chatham | 2024 |
| Jetting Services Direct Limited | East Grinstead | 2014 |
| Jettison Ltd | Glasgow | 2019 |
| JEX Waste Management Ltd | Ely | 2023 |
| JFC Plant Limited | Bradford | 2001 |
| JG Crushing and Recycling Limited | Enniskillen | 2006 |
| JG Removals & Maintenance Ltd | London | 2023 |
| JGA Metals Ltd | Church Stretton | 2026 |
| JGE Recycling Limited | Leighton Buzzard | 2014 |
| Jgll Limited | London | 2018 |
| JGS Vehicle Recovery Ltd | Swaffham | 2023 |
| JH Environmental & Cleansing Services Limited | Cradley Heath | 2008 |
| JH Longbottom Waste Transfer Station Ltd | Otford | 2025 |
| JH PDR Ltd | Bromborough | 2023 |
| JH Removals and Waste Disposal Ltd | Virginia Water | 2021 |
| JHB Contracts Ltd | Maybole | 2024 |
| JHW Clearances, Removals & Logistics Ltd | Edenbridge | 2021 |
| Jiffy Junk Ltd | London | 2020 |
| Jiggins Environmental Ltd | Colchester | 2015 |
| Jigsaw Recycling (N.E.) Ltd | Ripon | 2021 |
| Jigsaw Waste Management Consultants Ltd | Darlington | 2024 |
| JIM and Jakes Services Ltd | Swanley | 2025 |
| Jimmy Blandford Recycling Ltd | Hayling Island | 2025 |
| Jimmy MAY Scrap Metal Limited | Falmouth | 2005 |
| Jinhong.Weibang(Uk)Industry Co., Limited | London | 2023 |
| Jinkie Spring Water Limited | Haddington | 2008 |
| JIT Grab Services Limited | Stanmore | 2022 |
| JJ (Newcastle) Ltd. | London | 2024 |
| JJ Clearance Edinburgh Ltd. | Edinburgh | 2019 |
| JJ Drainage Ltd | Ringwood | 2024 |
| JJ Moto Parts Ltd | Sheffield | 2017 |
| JJ Reclamation Limited | Horsham | 2009 |
| JJ Waste and Demolition Services Ltd | Rickmansworth | 2014 |
| JJ Waste Management Group Limited | London | 2021 |
| JJ Waste Removal and Landscaping Services Ltd | Birmingham | 2023 |
| JJ Water Management Limited | Brecon | 2007 |
| Jj's Removals and Disposals Ltd | Dagenham | 2019 |
| JJA Joinery Ltd | Nottingham | 2016 |
| JJB a Services Ltd | Hartlepool | 2023 |
| JJB Waste Ltd | Brentwood | 2022 |
| JJC Hire Limited | Barrow-In-Furness | 2007 |
| Jjcb Limited | Dundee | 2024 |
| JJL Waste Consultancy Limited | Rotherham | 2017 |
| JJP Transport Ltd | St. Neots | 2025 |
| Jjpc Holdings Limited | Nuneaton | 2015 |
| JJR Construction Services Ltd | London | 2021 |
| JJS Waste Management Ltd | Hailsham | 2018 |
| JJW Demolition Contractors Ltd | Rickmansworth | 2025 |
| JK Recycling Services Limited | Matlock | 2017 |
| JK Waste Management Limited | Stockton-On-Tees | 2025 |
| JK Waste Management Services Ltd | Barnard Castle | 2025 |
| JK Water Ltd | St. Helens | 2021 |
| Jkjsk Ltd | Cullompton | 2026 |
| JKL Waste Removal Services Ltd | Manchester | 2026 |
| JKR Recycling Services Limited | Ashford | 2013 |
| JKS Plastic Collections Ltd | Sale | 2020 |
| Jksskiphire Ltd | Bradford | 2024 |
| JKW Multi Services Ltd | Ramsgate | 2026 |
| Jl's Drainage Ltd | Mitcham | 2023 |
| JLA Disposal Limited | Swansea | 2002 |
| JLA Recycling Limited | Swansea | 2000 |
| JLC Waste Management Limited | London | 2019 |
| JLD Waste Ltd | Cockfosters | 2023 |
| JLM Link Ltd | Birmingham | 2022 |
| JLM Waste Removals Ltd | Liverpool | 2023 |