| Cody & Giesen Limited | London | 2019 |
| Cody Family Tree Trust and Estate Planning Ltd | London | 2018 |
| Cody Holdings Limited | London | 2019 |
| Cody Management Services Ltd | Godalming | 2021 |
| COE Capital Wealth Management Limited | Swindon | 2018 |
| COE Group Ltd. | Basildon | 2023 |
| COE Solutions Finance Limited | London | 2016 |
| Coe's Fisheries Holdings Limited | Leeds | 2012 |
| COE, Costa & Moore Holdings Limited | Norwich | 2024 |
| Coed Y Draenog | London | 2021 |
| Coed-Y-Dinas Farming Limited | Welshpool | 2025 |
| Coeden Teulu Limited | Cardiff | 2023 |
| Coedlas Holdings Limited | Cowbridge | 2023 |
| Coedwig Group Ltd | Pontyclun | 2024 |
| Coefahey Limited | London | 2021 |
| Coefficient Capital Limited | London | 2017 |
| Coefficient Care Limited | Chorley | 2013 |
| Coel Asset Management Limited | Cambridge | 2019 |
| Coelco Group Limited | Peterborough | 2025 |
| Coello Events Ltd | London | 2024 |
| Coensan Limited | Portsmouth | 2023 |
| Coenwulf Consulting Ltd | Reading | 2019 |
| Coetus Limited | London | 2017 |
| Coetzer Holding Ltd | Kirkliston | 2025 |
| Coeus Equity Limited | London | 2021 |
| Coeus Group International Limited | Surbiton | 2025 |
| Coeus Insurance Management Limited | Liverpool | 2012 |
| Coeus Wealth Management Ltd | Liverpool | 2014 |
| Coex Group Limited | London | 2018 |
| Coexlion Holdings Ltd | Hinckley | 2025 |
| COF Divine Limited | Manchester | 2020 |
| COF Solutions Ltd | Warrington | 2020 |
| Coface Corporate Member Limited | London | 2025 |
| Coface UK Holdings Limited | Watford | 1959 |
| Coface UK Services Limited | Watford | 2000 |
| Cofarco (UK) Limited | London | 2019 |
| Coffee & JAM Holdings Ltd | London | 2022 |
| Coffee CUP Holdings Limited | Wokingham | 2022 |
| Coffee Global Limited | Leeds | 2005 |
| Coffee House Group Limited | Letchworth Garden City | 2021 |
| Coffee Island Holdings Ltd | London | 2016 |
| Coffee United Holdings Ltd | Newton Aycliffe | 2020 |
| Coffeeboy Holdings Limited | Batley | 2023 |
| Coffeeholding Ltd | London | 2026 |
| Coffeehouse Holdings Ltd | Ledbury | 2024 |
| Coffers & Co. Ltd | Newport | 2026 |
| Coffey Brooks Financial Services Ltd | Clacton-On-Sea | 2002 |
| Coffey Holdings Limited | Ipswich | 2025 |
| Coffey Investments Ltd | Hastings | 2021 |
| Coffey Tomkins Financial Services Ltd | Clacton-On-Sea | 2015 |
| Cofficient EOT Limited | Glasgow | 2024 |
| Cofford & Co Property Finance Ltd | Leicester | 2009 |
| Cofihealthcare UK 1 Co Limited | Birmingham | 2021 |
| Cofihealthcare UK 2 Limited | Birmingham | 2021 |
| Cofiso Limited | Ipswich | 2006 |
| Cofoundra Holdings Limited | Cheadle | 2026 |
| Cofton Collective Limited | Wolverhampton | 2026 |
| Cofton Insurance Services Limited | St Pauls Square | 2001 |
| Cofunds Limited | London | 2000 |
| Cofunds Nominees Ltd | London | 2000 |
| COG Financial Ltd | Southampton | 2023 |
| Cogdean Property Management Ltd | Wimborne | 2025 |
| Coge Ltd | St. Helens | 2022 |
| Cogendo Nominees Limited | London | 2016 |
| Cogenesis Ltd | Richmond | 2002 |
| Cogenio Group Holdings Limited | London | 2018 |
| Cogenio Group Limited | London | 2018 |
| Cogent Capital Investments Ltd | Stoke-On-Trent | 2025 |
| Cogent Finance Ltd | Stanmore | 2014 |
| Cogent Financial Partnership Ltd | London | 2026 |
| Cogent Financial Planning Limited | Bedfordshire | 2004 |
| Cogent Financial Services Limited | Stanmore | 2003 |
| Cogent Financial Solutions Ltd | Derby | 2020 |
| Cogent Hire Limited | Chorley | 2020 |
| Cogent Insurance Services Limited | Leeds | 2014 |
| Cogent International Holdings Limited | London | 1990 |
| Cogent International Limited | London | 1983 |
| Cogent Mechatronic Group Limited | Leeds | 2021 |
| Cogent Planning Ltd | Taunton | 2013 |
| Cogent Research Ltd | Taunton | 2003 |
| Cogent Services Group Limited | Wakefield | 2021 |
| Cogent Services Ltd | Leicester | 2025 |
| Cogenta Ltd | Chelmsford | 2018 |
| Coggon Brothers Farming Ltd | Scunthorpe | 2021 |
| Coggrave Holdings Limited | Richmond | 2026 |
| Coghlan Financial Planning Ltd | Northwich | 2025 |
| Cogidocs Holdings Limited | London | 2018 |
| Cogita Enterprises Ltd. | London | 2015 |
| Cogitent Ventures Ltd | London | 2022 |
| Cogito Partners Group Limited | London | 2024 |
| Cogmentum Holdings Ltd | Norwich | 2025 |
| Cogmusk Holdings Limited | Northampton | 2026 |
| Cogmusk Limited | Northampton | 2001 |
| Cognate Capital Ltd | Bedford | 2023 |
| Cognati Group Limited | Droitwich | 2024 |
| Cognesense Holdings UK Limited | London | 2026 |
| Cogniforma H Limited | Slough | 2025 |
| Cognira Ltd | London | 2026 |
| Cognis Capital Management Limited | London | 2008 |
| Cognis Capital Partners Limited | Barnet | 2019 |