| CMC Ravenna UK Limited | Altrincham | 2018 |
| CMD Rigging Limited | Rotherham | 2020 |
| CMD Talent Consulting Ltd | Ceredigion | 2012 |
| CMF Photography Limited | Birmingham | 2016 |
| CMG (UK) Limited | Bromborough | 2008 |
| CMG Franchise (UK) Limited | Bromborough | 2013 |
| CMG Limited | London | 1968 |
| CMG Pension Trustees Limited | London | 1973 |
| CMH Building Limited | Aylesbury | 2003 |
| CMH Developments Limited | Aylesbury | 2003 |
| CMH Enterprises Ltd. | Telford | 2015 |
| CMI Building Ltd | London | 2020 |
| CMJ Manor Ltd | London | 2024 |
| CML Investments One Limited | London | 1978 |
| CML Investments Two Limited | London | 1979 |
| CML OIL Ltd | London | 2023 |
| CML SPV1 Limited | Leeds | 2026 |
| CML Warranties Ltd | Belfast | 2017 |
| CMM EOT Limited | Leeds | 2024 |
| CMM Repairs & Maintenance Limited | London | 2025 |
| Cmmm Ltd | Hatfield | 2013 |
| Cmoms Limited | Great Harwood | 2013 |
| CMP Resolutions Holdings Trustee Limited | Royston | 2024 |
| CMP27 Yachting Ltd | London | 2025 |
| Cmrc Limited | Leeds | 2011 |
| CMS (Cable Management Supplies) PLC | Newbury | 1996 |
| CMS 29 Ltd | Haverhill | 2025 |
| CMS Danskin Acoustics Limited | Sheffield | 1990 |
| CMS Design Engineering Ltd | Plymouth | 2021 |
| CMS Ergonomics Limited | Abingdon | 1997 |
| CMS Fleet (UK) Limited | Seaham | 2018 |
| CMS Peripherals Limited | London | 2012 |
| CMS Sussex Ltd | Littlehampton | 2014 |
| CMS Systems Ltd | London | 2005 |
| CMS Yachting Ltd | London | 2017 |
| CMT Trading Limited | London | 2015 |
| Cmtl Holdings Limited | Gerrards Cross | 2022 |
| Cmts Training Solutions Limited | High Peak | 2012 |
| CMV Medic Ltd | Glasgow | 2022 |
| CMW Technologies Limited | London | 2012 |
| CMX Industry Co., Ltd | Kenilworth | 2021 |
| Cmyk Print Limited | Epsom | 2025 |
| CN (2013) Limited | Malton | 2013 |
| CN (Essex) Limited | Leigh-On-Sea | 2018 |
| CN Material Solution Ltd | Manchester | 2011 |
| CN Strategies Limited | Southend-On-Sea | 2003 |
| CN24P Ltd | Carmarthen | 2016 |
| CNC Creations Ltd | Northampton | 2024 |
| CNC Dynamics Ltd | Colne | 2013 |
| CNC Spindles Ltd | Colne | 2012 |
| Cnchess Co., Ltd | Beckenham | 2020 |
| Cncrown Industrial Ltd | London | 2014 |
| CNET2NET Limited | Birmingham | 2012 |
| CNF Dumpers Limited | Stockport | 2023 |
| CNG Appleton Thorn Limited | London | 2022 |
| CNG Avonmouth South Limited | London | 2021 |
| CNG Aylesford Limited | London | 2022 |
| CNG Bardon Limited | London | 2018 |
| CNG Barnsley Limited | London | 2021 |
| CNG Birstall Limited | London | 2023 |
| CNG Bolton Limited | London | 2024 |
| CNG Bradford Limited | London | 2023 |
| CNG Bridgwater Limited | London | 2022 |
| CNG Carlisle Limited | London | 2021 |
| CNG Chelmsford Limited | London | 2023 |
| CNG Croc Dundee Limited | London | 2022 |
| CNG Derby Limited | London | 2022 |
| CNG Erdington Limited | London | 2018 |
| CNG Exeter Limited | London | 2021 |
| CNG Hinckley Limited | London | 2022 |
| CNG Lamesley Limited | London | 2022 |
| CNG Lockheed Limited | London | 2023 |
| CNG Magor Limited | London | 2021 |
| CNG Milton Keynes Limited | London | 2021 |
| CNG Scotland Ltd | Livingston | 2015 |
| CNG Swindon Limited | London | 2021 |
| CNG Technical Limited | Scarborough | 2002 |
| CNG Wakefield Limited | London | 2023 |
| Cniw European Global Ltd | Stockton-On-Tees | 2019 |
| CNJ International Co., Ltd | Beckenham | 2012 |
| CNL Technology Co., Ltd | London | 2016 |
| CNM Estates (Development Management) Limited | New Malden | 2015 |
| CNM Estates (Europe) Limited | New Malden | 2012 |
| CNM Estates (Lime Grove) Limited | New Malden | 2019 |
| CNM Estates (Reading) Limited | New Malden | 2013 |
| CNM Estates (Residential Holdings) Limited | New Malden | 2020 |
| CNM Estates (Serviced Apartments) Holdings Limited | New Malden | 2020 |
| CNM Estates (Serviced Office) Holdings Limited | New Malden | 2020 |
| CNM Investment Management Ltd | Edinburgh | 2012 |
| CNM Multiple Services | Spalding | 2023 |
| CNN Enterprises Ltd | London | 2012 |
| CNP Properties Ltd | Salisbury | 2002 |
| Cnqc a Investment Corporation Limited | London | 2015 |
| Cnqc M Investment Corporation Limited | London | 2016 |
| CNS Hope | Thamesmead West | 2005 |
| CNS Property Consultants Limited | London | 2009 |
| Cnsr Ltd | Cardiff | 2020 |
| Co Brand Creatives Limited | Bexleyheath | 2021 |
| Co Craftor Limited | St. Helens | 2018 |
| Co Create Communication Ltd | Haverfordwest | 2022 |