| C and E Asset Holdings Ltd | Wigan | 2026 |
| C and F Holdco Ltd | Northampton | 2024 |
| C and GH Holdings Ltd | London | 2018 |
| C and J Agri Ltd | Sleaford | 2025 |
| C and P Financial Services Limited | Waterlooville | 2022 |
| C and P Lakeside Holdings Limited | Newark | 2022 |
| C Arnold Holdings Limited | London | 2025 |
| C B Hall (Independent Financial Adviser) Limited | Bromsgrove | 2019 |
| C B Land Limited | Beaconsfield | 2025 |
| C B Southern Holdings Ltd | Liverpool | 2010 |
| C Barter Exchange | Purley | 2024 |
| C Bourne UK Limited | Wolverhampton | 2022 |
| C Brewer & Sons Pension Scheme Trustees Ltd. | Eastbourne | 2019 |
| C Brewer & Sons Retirement Benefits Scheme Trustees Ltd | Eastbourne | 2019 |
| C Bros Holdings Limited | Beckenham | 2017 |
| C Butt Enterprises Limited | Northampton | 2023 |
| C C Business Mechanics Ltd | Aldermaston | 2020 |
| C C Capital Holdings Limited | Harrogate | 2024 |
| C C D R Ltd | Liverpool | 2008 |
| C C James Investments Ltd | London | 2024 |
| C Capital Media Ltd | Barnet | 2017 |
| C Chambers Consultancy Limited | Scunthorpe | 2014 |
| C Clack Holdings Ltd | Crewe | 2023 |
| C Coates Holdings Ltd | Saltash | 2024 |
| C Cowe Consulting Ltd | Royston Road | 2022 |
| C D Financial Ltd | Shifnal | 2013 |
| C D G B Limited | Solihull | 2007 |
| C D G Financial Services Limited | Leicester | 1996 |
| C D Scarisbrick Limited | Nantwich | 2025 |
| C D T Property Solutions Ltd | Wednesbury | 2012 |
| C Davies Group Ltd | Blackwood | 2026 |
| C Dillon UK Limited | Thornton-Cleveleys | 2015 |
| C Doyle Wealth Management Limited | Lyndhurst | 2024 |
| C E Birch Limited | Norwich | 2013 |
| C E Braddell Limited | Cheltenham | 2025 |
| C E G Europe Limited | Cardiff | 2012 |
| C E Noel Limited | Bedford | 2025 |
| C E Traxler Limited | South Croydon | 2021 |
| C F Bell Financial Consultant Ltd | Leeds | 2008 |
| C F Bridgewater Limited | Swansea | 2016 |
| C F E Holdings Limited | Birmingham | 2018 |
| C F Gill Properties Limited | Peterborough | 2010 |
| C F S (UK) Limited | Newcastle Emlyn | 1991 |
| C Fitzsimmons Limited | Fareham | 2006 |
| C Franks Holdings Ltd | Shipley | 2023 |
| C G H W Limited | Preston | 2009 |
| C G Refrigeration and Air Conditioning Holdings Ltd | Hereford | 2026 |
| C Global Group Holdings Limited | Birmingham | 2019 |
| C Grant (Holdings) Limited | Birmingham | 2024 |
| C H a Phillips Ltd | London | 2025 |
| C H Boswell Management Ltd | Blackpool | 2018 |
| C H G South West Holdings Limited | Bridport | 2020 |
| C H Holdings and Investments Limited | Redditch | 2022 |
| C H JV Limited | London | 2018 |
| C H Mortgages Ltd | Porth | 2020 |
| C H Property Trustee Gmsrbs Limited | Salisbury | 2015 |
| C Hardie Mortgage & Protection Services Ltd | Swindon | 2020 |
| C Hardy Holdings Limited | Portsmouth | 2025 |
| C Harris Holdings Limited | North Walsham | 2026 |
| C Heaney Holdings Limited | Manchester | 2026 |
| C Heslop Financial Services Limited | Bury | 2008 |
| C Hewitson Financial Services Ltd | Leeds | 2013 |
| C Hobbins Financial Solutions Ltd | Cardiff | 2012 |
| C Holdings Limited | Northampton | 2023 |
| C Hope Property Ltd | Leamington Spa | 2026 |
| C Hyam Property Solutions Ltd | Rugby | 2020 |
| C Hyde Mortgage Finance Limited | Milton Keynes | 2012 |
| C I (Risk Management Services) Ltd | Sawbridgeworth | 2000 |
| C I 4 U GB Nationwide Limited | Nottingham | 2008 |
| C I Alliance Limited | Ashford | 2023 |
| C I C Insurance Services Limited | Cookham Berkshire | 1986 |
| C I Capital | Ferndown | 2026 |
| C I Consultancy and Introductions Ltd | Peterborough | 2013 |
| C I Holdco Ltd | London | 2020 |
| C I I S East Limited | Portsmouth | 2003 |
| C I L Steeltech Limited | Worksop | 1994 |
| C J Bott Limited | Leicester | 2020 |
| C J E Investments Limited | Barnet | 2014 |
| C J Financial Kent Ltd | Ashford | 2012 |
| C J Hannan Ltd | Cardiff | 2012 |
| C J Hart Limited | Newton Abbot | 2013 |
| C J Hugo Limited | Sevenoaks | 2009 |
| C J Leney Limited | Hintlesham | 2007 |
| C J Motor Solutions Ltd | Billingham | 2025 |
| C J O Group Ltd | New Malden | 2024 |
| C J R Ceilings Holdings Limited | Nottingham | 2026 |
| C J S Mortgage Consultant Ltd | Crawley | 2025 |
| C J S Mortgage Solutions Limited | Rochdale | 2018 |
| C J Thorne Holdings Limited | Steyning | 2024 |
| C J Trading Associates Limited | Hertford | 2013 |
| C J Veronix Limited | Leeds | 2013 |
| C Jackson Services Ltd | Lancaster | 2025 |
| C James Briggs Limited | Liverpool | 2013 |
| C Jenkins Trading Ltd | Mitcham | 2019 |
| C Jones Motor Engineers Limited | Altrincham | 2011 |
| C Joyner Limited | Norwich | 2015 |
| C K Dobson Holdings Limited | Bilston | 2021 |
| C K Dwellings Limited | Coventry | 2017 |
| C K Electrical Holdings Ltd | Long Eaton | 2025 |
| C K Industries Limited | Shropshire | 2013 |