| CMP Business Ltd | Buckhurst Hill | 2024 |
| CMP Contracts Ltd | Lochgelly | 2016 |
| CMP Products Limited | Tyne & Wear | 2007 |
| Cmpc Europe Ltd | Congleton | 2000 |
| CMR Controls Limited | Rochford | 1978 |
| CMR Lift Tech Limited | Glasgow | 2021 |
| CMR Mechanical Services Ltd | Stockton-On-Tees | 2020 |
| CMR Media Ltd | London | 2025 |
| CMR Midlands Group Limited | Leicester | 2023 |
| CMR Surgical Limited | Cambridge | 2014 |
| Cmrb Contracting Limited | Maidstone | 2024 |
| CMS Birmingham Ltd | Birmingham | 2026 |
| CMS Blotter Limited | Aylesbury | 2004 |
| CMS Computers Limited | Warrington | 1996 |
| CMS Driving Services Ltd | Nottingham | 2025 |
| CMS Electronic Ltd | London | 2025 |
| CMS Fabrications Ltd | Tamworth | 2007 |
| CMS Garage Doors Limited | Widnes | 2019 |
| CMS Industrial Services Limited | Ellesmere Port | 2015 |
| CMS Kitchens & Bedrooms Ltd | Birmingham | 2017 |
| CMS Orbis Ltd | Rotherham | 2018 |
| CMS Tyres Ltd | Dudley | 2025 |
| CMS Wrexham Limited | Wrexham | 2005 |
| CMT (Keighley) Limited | South Street | 1993 |
| CMT Clothing Ltd | London | 2018 |
| CMT Dynamics Limited | Leamington Spa | 2015 |
| CMT Engineering Limited | Cradley Heath | 2015 |
| CMT Industrial Powder Coaters Ltd | Norwich | 2004 |
| CMT Materials Limited | Alcester | 2024 |
| CMT Realisations Limited | 151 Deansgate | 1979 |
| CMT Steels & Supplies (Northern) Limited | London | 2015 |
| CMT Textiles Ltd | Oldham | 2021 |
| CMT Tubes & Fittings Limited | Leamington Spa | 2015 |
| Cmtmediamanagement Ltd | Leeds | 2024 |
| Cmtr Composites Ltd | Cambridge | 2023 |
| CMUK2026 Limited | London | 2018 |
| CMV Aviation Ltd | Manchester | 2025 |
| CMW Engineering (Nottingham) Limited | Nottingham | 2019 |
| CMW Engineering International Ltd | Wigton | 2016 |
| CMW Technical Services Limited | Northamptonshire | 2006 |
| CMX2 Ltd | Leyburn | 2026 |
| Cmyk Burnley Ltd | Burnley | 2014 |
| Cmyk Print Solutions Limited | Waltham Abbey | 2018 |
| Cmyk Printing Limited | Edinburgh | 2002 |
| Cmyk Retail Solutions Limited | Virginia Water | 2012 |
| Cmyk Solutions Ltd | Sheffield | 2020 |
| Cmyk Strategies Ltd | Hemel Hempstead | 2026 |
| Cmytfos Limited | 54 Bloomfield Avenue | 2024 |
| CN Aviation Services Ltd | Witney | 2021 |
| CN BIO Innovations Limited | Cambridge | 2008 |
| CN Concept Construction Ltd | Greenford | 2025 |
| CN Engineering Ltd | Portree | 2024 |
| CN Glass Ltd | Banbury | 1999 |
| CN Plant Services Limited | Harpenden | 2023 |
| CN Pro Repair Ltd | Belfast | 2025 |
| CN Respiratory Solutions Limited | Cambridge | 2024 |
| CN Services Ltd | Hove | 2023 |
| CN YEE Limited | London | 2025 |
| CN2UK Ltd | Richmond | 2013 |
| CNA Vision Ltd | London | 2022 |
| CNB Bakehouse Ltd | Grays | 2025 |
| CNB Composites Ltd | Cambridge | 2018 |
| CNB Ductwork Ltd | Nottingham | 2024 |
| CNB Services Limited | London | 2021 |
| CNB Solutions Ltd | Romford | 2025 |
| CNB Stainless Ltd | King'S Lynn | 2019 |
| CNC & Maintenance Services Ltd | Bideford | 2005 |
| CNC 2000 Midlands Limited | Lutterworth | 2004 |
| CNC 24 Limited | Bury St. Edmunds | 2023 |
| CNC 32 Limited | Colne | 2016 |
| CNC Assist Ltd | Bristol | 2023 |
| CNC Autos Limited | Solihull | 2013 |
| CNC Bristol Ltd | Gloucester | 2023 |
| CNC Centre Ltd | Hinckley | 2009 |
| CNC Check Machine Tools Ltd | Leicester | 2000 |
| CNC Coatings Limited | Sandown | 2017 |
| CNC Contracting Ltd | Worksop | 2025 |
| CNC Cutting Essex Ltd | Chelmsford | 2015 |
| CNC Dave Limited | Ruislip | 2026 |
| CNC Direct Engineering Ltd | Leicester | 2010 |
| CNC Engineering (Dundee) Limited | Dundee | 2003 |
| CNC Engineering Limited | Leicester | 2026 |
| CNC Experts Ltd | Derby | 2016 |
| CNC Gears Limited | London | 2023 |
| CNC Group Limited | St. Neots | 2016 |
| CNC Guru Ltd | Bexhill On Sea | 2022 |
| CNC Inspire Ltd | Hailsham | 2021 |
| CNC IT NOW Limited | Northampton | 2013 |
| CNC Joinery Services Limited | Walsall | 2012 |
| CNC LAB Ltd | Tamworth | 2020 |
| CNC Leicester Limited | Leicester | 2011 |
| CNC Lifting Supplies Limited | Nottingham | 2022 |
| CNC Lifts Ltd | Andover | 2010 |
| CNC Machine Services Ltd | Hounslow | 2023 |
| CNC Machine Tool Repair Limited | Bury St. Edmunds | 2024 |
| CNC Machine Tool Services UK Ltd | Stone | 2008 |
| CNC Machine Tools Limited | Norfolk | 2000 |
| CNC Machinery Limited | Tavistock | 2001 |
| CNC Machinery Solutions Limited | Leicester | 2010 |
| CNC Machining Ltd | Lichfield | 2025 |