| Chralivi Limited | Financial services | 2016 |
| Chris & Co. Drapes Limited | Arts & recreation | 2009 |
| Chris Atkinson Design Limited | Professional & scientific | 2016 |
| Chris Barker & Associates Limited | Health & social care | 2015 |
| Chris Beech Ltd | Health & social care | 2025 |
| Chris Berry Media Services Limited | Information & communication | 2008 |
| Chris Browne Financial Consultancy Limited | Financial services | 2018 |
| Chris Charles Lifting Services Limited | Construction | 2021 |
| Chris Hastings Limited | Professional & scientific | 2019 |
| Chris Hurcombe Limited | Professional & scientific | 2021 |
| Chris Kerry Sound Services Ltd | Other services | 2024 |
| Chris Leah Photography Ltd | Professional & scientific | 2010 |
| Chris Lord Associates Ltd | Professional & scientific | 2021 |
| Chris Madden Therapy Ltd | Health & social care | 2024 |
| Chris Nichols Ltd | Construction | 2015 |
| Chris Pattrick Logistics Ltd | Transport & logistics | 2026 |
| Chris Pratt Project Management Ltd | Professional & scientific | 2014 |
| Chris ROY Limited | Professional & scientific | 2007 |
| Chris South Equity Release Specialist Ltd | Financial services | 2018 |
| Chris Taylor Properties Limited | Real estate | 2017 |
| Chris Thornton Photography Limited | Professional & scientific | 2015 |
| Chris Woods Eyecare Limited | Wholesale & retail | 2024 |
| Chriskepa Limited | Health & social care | 2013 |
| Chrismiallconsulting Ltd | Professional & scientific | 2026 |
| Chrisolite Care Limited | Health & social care | 2022 |
| Christ Church Armley Community Projects Limited | Professional & scientific | 2009 |
| Christ Impact Chapel Ltd | Other services | 2019 |
| Christabel Music Limited | Arts & recreation | 1970 |
| Christaw Properties Limited | Real estate | 2024 |
| Christchurch Properties (Northern) Limited | Extraterritorial | 1987 |
| Christian Healthcare Services Ltd | Other services | 2017 |
| Christian Kahssay Properties Ltd | Real estate | 2025 |
| Christian Lauren Limited | Manufacturing | 2011 |
| Christian Mechanics Ltd | Wholesale & retail | 2018 |
| Christian U Ltd | Transport & logistics | 2019 |
| Christiana Strategic Change Communications Ltd | Professional & scientific | 2018 |
| Christians Carpets Ltd. | Wholesale & retail | 2005 |
| Christie Ward Solutions Limited | Information & communication | 2026 |
| Christin Consulting Ltd | Information & communication | 2025 |
| Christina Aesthetics Academy Ltd | Other services | 2022 |
| Christine Mclean Consulting Limited | Professional & scientific | 2009 |
| Christine Yorath Design Ltd | Other services | 2015 |
| Christmas Panto Movie Ltd | Information & communication | 2023 |
| Christopher Brook Cars Limited | Wholesale & retail | 2010 |
| Christopher Heap Limited | Financial services | 2026 |
| Christopher Street Business Centre Limited | Real estate | 2014 |
| Christopher Taylor Art Limited | Arts & recreation | 2024 |
| Christopher Tudor Limited | Financial services | 2011 |
| Chrm Ltd | Real estate | 2022 |
| Chroma Marketing Ltd | Professional & scientific | 2018 |
| Chromoprint Limited | Manufacturing | 2024 |
| Chromoto Ltd | Wholesale & retail | 2020 |
| Chrysalis Promotions Ltd | Arts & recreation | 2004 |
| Chrysalis Property Ltd | Real estate | 2025 |
| Chrysalis Talent Solutions Limited | Administrative & support | 2023 |
| Chrysos Properties Limited | Real estate | 2021 |
| CHU Brothers Co Ltd | Real estate | 2024 |
| Chu's Floral Ltd | Wholesale & retail | 2021 |
| Chuboo Ltd | Hospitality | 2022 |
| Chuen Ltd | Wholesale & retail | 2021 |
| Chug Chug Limited | Transport & logistics | 2023 |
| Chuldow Martial Arts Rothwell Ltd | Arts & recreation | 2025 |
| Chung Eyecare Limited | Health & social care | 2016 |
| Chunk Cookies Ltd | Manufacturing | 2023 |
| Church Community Link CIC | Real estate | 2025 |
| Church Fenton Trading Ltd | Agriculture & fishing | 2021 |
| Church Park Construction Limited | Extraterritorial | 2020 |
| Church Park Developments Limited | Extraterritorial | 2019 |
| Church Park Homes Limited | Extraterritorial | 2019 |
| Church Park Investments Limited | Financial services | 2018 |
| Church Road (Horsforth) Management Company Limited | Real estate | 2007 |
| Church Street Practice (Guisborough) Limited | Health & social care | 2011 |
| Church View Court Management Company Limited | Construction | 1987 |
| Church View Mews Management Company Limited | Real estate | 1998 |
| Churchgate ACA Limited | Construction | 2019 |
| Churchgate Court Limited | Households | 1970 |
| Churchill House Securities Limited | Hospitality | 2004 |
| Churchill Leisure Services Limited | Hospitality | 2024 |
| Churchward PLC | Construction | 1990 |
| Churwell C.I.C. | Education | 2012 |
| Churwell Hill Management Company Limited | Hospitality | 1983 |
| Churwell IT Services Ltd | Information & communication | 2023 |
| CHY Consultancy Limited | Professional & scientific | 2017 |
| Chymera Machina Ltd | Manufacturing | 2021 |
| Chynoel&Co Ltd | Health & social care | 2013 |
| CI Investments Limited | Real estate | 2021 |
| Cian Glasheen Architects' Ltd | Professional & scientific | 2022 |
| Cibernet Limited | Administrative & support | 1995 |
| Cicely Productions Ltd | Information & communication | 2025 |
| CID Executive Limited | Professional & scientific | 2021 |
| CID Holdings Limited | Wholesale & retail | 2017 |
| CID Products LLP | | 2011 |
| CID Trading Limited | Wholesale & retail | 2012 |
| Cider of Sweden Ltd | Wholesale & retail | 2006 |
| CIE Solutions Ltd | Professional & scientific | 2010 |
| Ciele Beauty Ltd | Manufacturing | 2018 |
| Cielo Garforth Limited | Wholesale & retail | 2017 |
| Cifted Ltd | Wholesale & retail | 2020 |
| Ciih Ltd | Administrative & support | 2017 |
| Ciil Healthcare Ltd | Health & social care | 2022 |