| Commercial Finance Direct Limited | Stevenage | 2001 |
| Commercial Finance Ltd. | Retford | 2007 |
| Commercial Finance Made Simple Ltd | Warrington | 2024 |
| Commercial Finance Network Corporation Ltd | Lichfield | 2017 |
| Commercial Finance Network Limited | Lichfield | 2016 |
| Commercial Finance Practice Limited | London | 2014 |
| Commercial Finance Services Limited | Uttoxeter | 2003 |
| Commercial Finance Solutions UK Limited | Kent | 2006 |
| Commercial Finance Specialists Limited | Oxford | 2016 |
| Commercial Financial Solutions Limited | Birmingham | 2014 |
| Commercial Financing Solutions Limited | Ashford | 2011 |
| Commercial Fleet Holdings Ltd | Rotherham | 2018 |
| Commercial Force Limited | London | 2004 |
| Commercial FS Limited | Hillsborough | 2015 |
| Commercial Funding (London) Limited | Wanstead | 2012 |
| Commercial Funding (UK) Ltd | Nantwich | 2011 |
| Commercial Funding Services Limited | Walsall | 2005 |
| Commercial Funding Solutions Ltd | North Harrow | 2015 |
| Commercial Heating & Drying Holdings Limited | Doncaster | 2020 |
| Commercial Insurance Brokers (B'Ham) Limited | Warwick | 1955 |
| Commercial Insurance Services Limited | Surrey | 1997 |
| Commercial Lending Solutions Limited | Stafford | 2015 |
| Commercial Litigation Group Limited | Portsmouth | 2017 |
| Commercial Loans & Finance Funding Ltd | Swanage | 2015 |
| Commercial Loans & Finance Ltd | Swanage | 2015 |
| Commercial Marine Insurance Services Limited | London | 2000 |
| Commercial Mortgage Concierge Ltd | Rayleigh | 2016 |
| Commercial Mortgage Group Limited | Taunton | 2006 |
| Commercial Mortgages Store Limited | Bicester | 2020 |
| Commercial Motor Spares Holdings Limited | Wombourne | 2023 |
| Commercial Processing Centre Limited | Bushey | 2006 |
| Commercial Processing UK Limited | Stevenage | 2004 |
| Commercial Property Finance Consultancy Limited | Newcastle Upon Tyne | 1999 |
| Commercial Property Finance Limited | London | 2015 |
| Commercial Property Lending Ltd | Poole | 2021 |
| Commercial Reward UK Ltd | Port Talbot | 2014 |
| Commercial Risk Services Limited | Edinburgh | 2016 |
| Commercial Risk Solutions Ltd | Dundee | 2009 |
| Commercial Risks (UK) Limited | London | 2002 |
| Commercial Select Limited | Wakefield | 2024 |
| Commercial Sense Limited | Buckden | 2018 |
| Commercial Services Education Holdings Ltd | West Malling | 2004 |
| Commercial Solutions (North East) Limited | Sunderland | 2015 |
| Commercial Solutions Limited | Gravesend | 2006 |
| Commercial Trust Limited | Norwich | 2013 |
| Commercial Vehicle Contracts Limited | Bexhill On Sea | 2012 |
| Commercial Vehicle Leasing Limited | Glasgow | 1997 |
| Commercial Vehicles (Yeovil) Limited | Exeter | 2012 |
| Commercial Venture Facilitators Limited | Maidstone | 2017 |
| Commercialandbridging Limited | Doncaster | 2012 |
| Commercialfinancecompany(Essex) Ltd | Benfleet | 2019 |
| Commercis PLC | London | 2020 |
| Commerzbank Finance Limited | | 1955 |
| Commex Limited | Milton Keynes | 2006 |
| Commify Limited | Nottingham | 2016 |
| Commify Topco 2023 Limited | Nottingham | 2022 |
| Commify Topco Limited | Nottingham | 2016 |
| Commission Reduction Ltd | Cardiff | 2019 |
| Commitment to Property Ltd | Ellesmere Port | 2024 |
| Committed Capital Financial Services Limited | London | 1999 |
| Committed Capital Limited | London | 2002 |
| Committed Capital Nominees Limited | London | 2010 |
| Committee - the Community Loan Company Ltd | Southall | 2018 |
| Commix Capital Ltd | London | 2023 |
| Commodities AI Ltd | London | 2019 |
| Commodities Management Trading Partners Ltd | London | 2026 |
| Commodities Research Unit International (Holdings) Limited | London | 1991 |
| Commodities Worldwide UK Holding Limited | London | 2020 |
| Commoditree Ltd | London | 2016 |
| Commodity Capital Limited | East Grinstead | 2010 |
| Commodity Centre (Group) Limited | Witham | 2012 |
| Commodity Centre Osprey Holdings Limited | Witham | 2020 |
| Commodity Centre Osprey Terminal Limited | Witham | 2020 |
| Commodity Port Ltd | London | 2016 |
| Commodity Search Partners Group Limited | Hailsham | 2013 |
| Commodity Tradepoint Limited | Chafford Hundred | 2020 |
| Commodity Vectors Limited | London | 2012 |
| Commodity Vine Limited | Southend On Sea | 2020 |
| Commodo Capital Partners Limited | Edinburgh | 2015 |
| Commodore Finance Limited | Prestatyn | 2006 |
| Commodore Holdings Ltd | Erith | 2021 |
| Common & Co (MCR) Ltd | Manchester | 2019 |
| Common Farm Solar Finco Limited | Houghton-Le-Spring | 2026 |
| Common Farm Solar Holdco Limited | Houghton-Le-Spring | 2026 |
| Common Holdings Limited | Staines-Upon-Thames | 2016 |
| Common Interest CIC | Lewes | 2018 |
| Common Interest Investments Ltd | London | 2025 |
| Common Magic Ltd | London | 2023 |
| Common Nature Ltd | London | 2022 |
| Common Sense Financial Planning Ltd | Coventry | 2009 |
| Common Thread Financial Solutions Ltd | Stockport | 2026 |
| Common Thread Group Limited | London | 2024 |
| Common Thread Impact Ventures Limited | Stoke-On-Trent | 2025 |
| Common Tongue Group Ltd | Worcester | 2026 |
| Common Ventures Limited | London | 2025 |
| Common Wealth Share | Ruislip, | 2021 |
| Commonai Holdings Limited | London | 2024 |
| Commons at Ltd | Bristol | 2022 |
| Commonsense Innovations Ltd | Eastleigh | 2025 |
| Commonside Assets Ltd | Cardiff | 2025 |