| Clean Living Property Care Ltd | Ruislip, | 2024 |
| Clean Machine Detailing Ltd | Middlesbrough | 2023 |
| Clean My Golf Clubs Limited | Lytham St. Annes | 2022 |
| Clean My Office (Home Counties) Ltd | Wokingham | 2025 |
| Clean My Office (London) Ltd | Wokingham | 2025 |
| Clean My Office(West Berkshire) Limited | Wokingham | 2012 |
| Clean N More Ltd | London | 2021 |
| Clean N Tidy Movers Ltd | Kilmacolm | 2014 |
| Clean N Tidy Services Ltd | Broxburn | 2022 |
| Clean Notts Limited | Nottingham | 2014 |
| Clean of Herts Ltd | Welwyn Garden City | 2014 |
| Clean Protect & Revive Ltd | Bolton | 2025 |
| Clean Rates Ltd | West Drayton | 2015 |
| Clean Sea Newquay CIC | Newquay | 2025 |
| Clean Shave Barber Limited | Cheshire | 2025 |
| Clean Shave Haircut Ltd | Ellesmere Port | 2026 |
| Clean Shave Ltd | Emsworth | 2020 |
| Clean Shipping Alliance 2020 Limited | London | 2018 |
| Clean Slate Laundrette Limited | Wakefield | 2025 |
| Clean Slate London Ltd | Mitcham | 2025 |
| Clean Soles Ltd | London | 2026 |
| Clean Start Valeting Ltd | Dunfermline | 2019 |
| Clean Stitch Newmarket Limited | Newmarket | 2026 |
| Clean Stop Ltd | | 2007 |
| Clean Storm Limited | Coalville | 2018 |
| Clean Street Bolton Limited | Bolton | 2025 |
| Clean Sweep Cleaning Services Limited | London | 2016 |
| Clean Sweeping Ltd | Swindon | 2012 |
| Clean Tabs Limited | Saxmundham | 1988 |
| Clean Tech DRY Cleaners Limited | London | 2014 |
| Clean Tech Plus Limited | Leeds | 2018 |
| Clean the City Ltd | Radlett | 2019 |
| Clean the Mess Ltd | Barking | 2015 |
| Clean UP Records Limited | | 1994 |
| Clean UP the Internet | St. Ives | 2019 |
| Clean Vibes Ltd | Iver | 2019 |
| Clean Viking Acquisition Co Limited | Camberley | 2015 |
| Clean Viking Bidco Limited | Camberley | 2014 |
| Clean Viking Holdings Limited | Camberley | 2014 |
| Clean Wata Ltd. | Newport Pagnell | 2020 |
| Clean Water Systems (N.I.) Ltd | Kilrea | 2021 |
| Clean Water Systems Ltd | Warnham | 2018 |
| Clean Watford Limited | Camberley | 2015 |
| Clean Wears Ltd | London | 2023 |
| Clean World Birmingham Ltd | Birmingham | 2018 |
| Clean Zone Community Network Community Interest Company | Sheffield | 2025 |
| Clean-My-Windows Limited | Lincolnshire | 2007 |
| Cleanaway Property Services Limited | Kettering | 2012 |
| Cleancare Fabrics Limited | Darlington | 2007 |
| Cleancare Laundry Limited | Birmingham | 2011 |
| Cleancare Workwear Limited | Birmingham | 2007 |
| Cleancleanwindows Ltd | London | 2022 |
| Cleanco UKS Ltd | London | 2014 |
| Cleancove Ltd | New Romney | 2026 |
| Cleancut Barber London Ltd | Bexleyheath | 2025 |
| Cleandone Ltd | Ilford | 2014 |
| Cleaneeze Limited | Crewe | 2025 |
| Cleaner 4 Hire Ltd | Haverhill | 2013 |
| Cleaner Air Limited | Essex | 2016 |
| Cleaner Air Systems Limited | Poole | 2018 |
| Cleaner Cleaner Ltd | Colchester | 2008 |
| Cleaner DC Limited | Hindhead | 2026 |
| Cleaner Difference Team Oxford Limited | Abingdon | 2015 |
| Cleaner the Betta Limited | Canvey Island | 2005 |
| Cleaner With Clearview Ltd | Elgin | 2012 |
| Cleanerfix Limited | Sheffield | 2004 |
| Cleaners and Coffee Ltd | London | 2022 |
| Cleaners for Causes Limited | Gateshead | 2011 |
| Cleaners Planet Ltd | London | 2023 |
| Cleaners R US Midlands Limited | Newton Abbot | 2014 |
| Cleaners R US Plymouth Ltd | Newton Abbot | 2012 |
| Cleaners Rooms Ltd | London | 2025 |
| Cleanest Hearts Ltd | London | 2026 |
| Cleanex DRY Cleaners & Laundrette Limited | London | 2017 |
| Cleanexpert Limited | Rochester | 2015 |
| Cleaneze Ltd | London | 2019 |
| Cleanfabrics Ltd | Bolton | 2019 |
| Cleanfix Limited | Romsey | 2000 |
| Cleanfreak Ltd | Dagenham | 2026 |
| Cleanfreek Ltd | Christchurch | 2013 |
| Cleanfully Yours Limited | Middlesex | 2007 |
| Cleangenius DRY Cleaners Ltd | London | 2023 |
| Cleango Ltd | Ashton-Under-Lyne | 2016 |
| Cleanheart Limited | Maidstone | 2019 |
| Cleanhome Limited | Bracknell | 2007 |
| Cleanhub Services Ltd | London | 2026 |
| Cleanify Cloth Limited | Ilford | 2022 |
| Cleanin' Club Ltd | Twickenham | 2025 |
| Cleaning & Catering Supplies Ltd | Weston-Super-Mare | 2011 |
| Cleaning & Repairs Outsourced Ltd | London | 2022 |
| Cleaning Allround Ltd | Woking | 2025 |
| Cleaning and Hygiene Suppliers' Association | Wokingham | 1969 |
| Cleaning Art Ltd | London | 2019 |
| Cleaning Attire Care Group Ltd | Hornchurch | 2018 |
| Cleaning Bros Ltd | Romford | 2009 |
| Cleaning by EKO Ltd | London | 2026 |
| Cleaning Care Limited | Milton Keynes | 2006 |
| Cleaning ETC Cleaning Services Ltd | Scarborough | 2020 |
| Cleaning Glory Limited | Dagenham | 2025 |
| Cleaning Group London Limited | London | 2026 |