| Clear Port Holdings Limited | Southend-On-Sea | 2018 |
| Clear Retirement Ltd | Lewes | 2018 |
| Clear Risk IB Limited | Colchester | 2019 |
| Clear River Investments Ltd | London | 2017 |
| Clear Sense Financial Planning Limited | Chichester | 2017 |
| Clear Shapes Digital Limited | Brighton | 2024 |
| Clear Skies (EOT Trustee) Limited | London | 2024 |
| Clear Skies Commodities Ltd | London | 2013 |
| Clear Sky Capital UK Limited | Woking | 2023 |
| Clear Sky Financial Consulting Limited | Leicester | 2010 |
| Clear Sky Group Ltd | Leicester | 2017 |
| Clear Sky Mortgage Solutions Ltd | Leicester | 2015 |
| Clear Solutions (Financial Planning) Ltd | Alcester | 2002 |
| Clear Solutions (Wealth and Tax Management) Ltd | Burton On Trent | 2003 |
| Clear Solutions Equity Release Ltd | Rudgwick | 2022 |
| Clear Space Holdings Limited | Yeovil | 2023 |
| Clear Street UK Limited | London | 2023 |
| Clear Street UK Nominees Limited | London | 2024 |
| Clear Technology Group Ltd | Eccles | 2023 |
| Clear Thinking Enterprise Ltd | Burnham-On-Sea | 2018 |
| Clear Trades Group Ltd | Redhill | 2025 |
| Clear Treasury (UK Trading) Limited | London | 2015 |
| Clear Treasury Consulting Ltd. | Bury St. Edmunds | 2015 |
| Clear Treasury Group Limited | Bury St. Edmunds | 2015 |
| Clear Treasury Holdings Limited | Bury St. Edmunds | 2020 |
| Clear Ventures Investments Limited | London | 2026 |
| Clear View (South West ) Limited | Penzance | 2012 |
| Clear View Collective Ltd | Colney Heath | 2024 |
| Clear View Finance and Protection Ltd | Brentwood | 2021 |
| Clear View Financial Services Limited | Reading | 2006 |
| Clear View Imaging Holdings Limited | Thame | 2021 |
| Clear View Partnership Ltd | London | 2012 |
| Clear Vision 34 Holdings Limited | Bolton | 2023 |
| Clear Vision Clear Path Ltd | London | 2025 |
| Clear Vision Financial Planning Limited | Bedford | 2011 |
| Clear Vision Holdings Limited | Corsham | 2019 |
| Clear Vision Mortgages Ltd | Kilmarnock | 2018 |
| Clear Vision Wealth Management Ltd | Bolton | 2021 |
| Clear Vista Corporate Development Ltd | London | 2013 |
| Clear Water Ventures Holding Limited | London | 2024 |
| Clear Waters Investments Limited | Market Drayton | 2018 |
| Clear Wealth Ltd | London | 2019 |
| Clear Wealth Management Limited | Pontefract | 2008 |
| Clear Wealth Planning Ltd | Sutton Coldfield | 2016 |
| Clear Workplace Solutions Limited | Pontefract | 2016 |
| Clearaccept Ltd | London | 2019 |
| Clearacre Limited | London | 2021 |
| Clearance Capital Limited | London | 2008 |
| Clearance Venture Partners GP Limited | London | 2024 |
| Clearaway Holdings Limited | Leigh-On-Sea | 2015 |
| Clearbank Group Holdings Limited | London | 2022 |
| Clearbank Limited | London | 2015 |
| Clearbell Capital Holdings Limited | London | 2020 |
| Clearbox Group Holdings Ltd | Belfast | 2025 |
| Clearbridge Investment Management Limited | Edinburgh | 1978 |
| Clearbroking Ltd | Taunton | 2012 |
| Clearbrook Financial Solutions Ltd | Solihull | 2012 |
| Clearbrook Holdings Limited | Brentwood | 2000 |
| Clearcare Worldwide Ltd | Cardiff | 2025 |
| Clearchoiceatm Limited | Basingstoke | 2023 |
| Clearco Insure Limited | Manchester | 2015 |
| Clearcon Holdings Ltd | Antrim | 2021 |
| Clearcon Jory Ltd | Antrim | 2025 |
| Clearcourse Partnership Acquireco Finance Limited | London | 2020 |
| Clearcourse Partnership Acquireco Holdings Limited | London | 2020 |
| Clearcourse Partnership Acquireco Ltd | London | 2018 |
| Clearcourse Partnership Holdings Limited | London | 2021 |
| Clearcover Limited | Sheffield | 2013 |
| Clearcut Accounting Group Ltd | Manchester | 2022 |
| Cleardata Holdco Limited | London | 2025 |
| Cleardebt Group Limited | Altrincham | 2015 |
| Cleardebt Limited | Altrincham | 2004 |
| Cleareco Group Ltd | London | 2026 |
| Cleared Payments Limited | London | 2026 |
| Clearer Service Group Ltd | London | 2024 |
| CLEARFACE49 (Holdings) Limited | Preston | 2015 |
| Clearflow Capital Ltd | Stanford-Le-Hope | 2026 |
| Cleargrey Ventures Limited | Coventry | 2025 |
| Clearing Fields Limited | London | 2013 |
| Clearing Group Holdings Limited | Nottingham | 2026 |
| Clearlake Capital Group Limited | London | 2022 |
| Clearlake Corporation Ltd | Whitehills Business Park | 2025 |
| Clearlake Group Limited | London | 2018 |
| Clearlake Holdings Limited | Wokingham | 2023 |
| Clearlight Saunas International Limited | London | 2016 |
| Clearline Capital Ltd | London | 2025 |
| Clearline PHD Holdings Limited | Chelmsford | 2022 |
| Clearly Brilliant Limited | Edinburgh | 2005 |
| Clearly Compliance Limited | Crawley | 2005 |
| Clearly Drinks Group Limited | Manchester | 2014 |
| Clearly Independent Financial Planning Ltd | Bexhill On Sea | 2014 |
| Clearly Loans Limited | Pinner | 2012 |
| Clearly Planning & Project Management Ltd | Tonbridge | 2021 |
| Clearmoon Commercial Ltd | London | 2006 |
| Clearmotion International Holdings Ltd | Nuneaton | 2023 |
| Clearnorth Group Limited | Cleator | 2025 |
| Clearoak Limited | Orpington | 2025 |
| Clearorbit Limited | Bristol | 2005 |
| Clearpath Commercial Limited | Norwich | 2025 |
| Clearpath Finance Limited | Belfast | 2016 |