| Chiltern Wealth Management Ltd | Administrative & support | 2024 |
| Chiltington Haulage Ltd | Transport & logistics | 2014 |
| Chilton House Properties Limited | Other services | 1991 |
| Chilu Ltd | Transport & logistics | 2024 |
| Chime Property Limited | Real estate | 2022 |
| Chimera Studio Limited | Professional & scientific | 2015 |
| Chimp Electronics Limited | Wholesale & retail | 2012 |
| Chimp Online Limited | Wholesale & retail | 2022 |
| China Chef 688 Limited | Hospitality | 2021 |
| Chinabox Clothing Ltd | Wholesale & retail | 2011 |
| Chinabox Leicester Ltd | Wholesale & retail | 2026 |
| Chinabox Online Ltd | Wholesale & retail | 2023 |
| Chinacake Productions Limited | Information & communication | 2014 |
| Chine House Investments Ltd | Real estate | 2023 |
| Chinese Orphans' Assistance Team (Coat) UK | Health & social care | 2011 |
| Chiney Global Limited | Administrative & support | 2022 |
| Chinm Limited | Professional & scientific | 2025 |
| Chintu Bharadia Ltd | Extraterritorial | 2023 |
| Chinu Trading Ltd | Wholesale & retail | 2024 |
| Chinzee Investments Ltd | Real estate | 2024 |
| Chip Cons Plant Ltd | Construction | 2019 |
| Chipperfield Entertainments Limited | Arts & recreation | 2010 |
| Chiquita 20/20 Limited | Other services | 2012 |
| Chirton Indispensable Ltd | Hospitality | 2015 |
| Chisa Haulage Ltd | Transport & logistics | 2019 |
| Chiserley Experts Ltd | Transport & logistics | 2015 |
| Chistia Denim Manufacturers Industry Limited | Manufacturing | 2012 |
| Chiswell Fireplaces & Stoves Ltd | Construction | 2023 |
| Chiswell Heating Ltd | Construction | 2010 |
| Chiterdan Apps Limited | Information & communication | 2022 |
| Chivster Consultancy Ltd | Professional & scientific | 2024 |
| Chivy Limited | Administrative & support | 2023 |
| Chizom Limited | Health & social care | 2018 |
| CHL5 Property Limited | Real estate | 2022 |
| Chloe Gourmet Limited | Hospitality | 2019 |
| Chloe Gourmet Supplies Ltd | Manufacturing | 2022 |
| Chloe Pearson Eventing Ltd | Agriculture & fishing | 2024 |
| CHM Trading Limited | Wholesale & retail | 2020 |
| CHO Building Services Ltd | Construction | 2024 |
| Choc N' NUT Limited | Hospitality | 2024 |
| Chocchip Studios Ltd | Information & communication | 2025 |
| Chocoberry Cafe (Manchester) Ltd | Wholesale & retail | 2024 |
| Chocoberry Cafe Ltd | Wholesale & retail | 2018 |
| Chocoberry Group Ltd | Wholesale & retail | 2021 |
| Chocoberry Ltd | Wholesale & retail | 2019 |
| Chocoberry Peterborough Limited | Hospitality | 2024 |
| Chocoholic Desserts Ltd | Hospitality | 2024 |
| Chocolate Goose Consulting Ltd | Professional & scientific | 2013 |
| Chocolate Mint Co. Limited | Wholesale & retail | 2016 |
| Chocolate Treats Limited | Manufacturing | 2011 |
| Choice by Style Ltd | Wholesale & retail | 2021 |
| Choice Enterprise Limited | Education | 2025 |
| Choices 4 Life Limited | Professional & scientific | 2004 |
| Choices for Life UK Limited | Health & social care | 2002 |
| Choices for Living Ltd | Health & social care | 2023 |
| Choixce Holdings Limited | Professional & scientific | 2021 |
| Choixce IP Limited | Administrative & support | 2021 |
| Choixce Limited | Wholesale & retail | 2017 |
| Choixce Property Limited | Real estate | 2020 |
| Choma Foods Limited | Hospitality | 2023 |
| Choma Taste of Kenya Ltd | Hospitality | 2026 |
| Chommy Ltd | Real estate | 2024 |
| Choosing to BE Ltd | Health & social care | 2017 |
| Chorgans Creative Ltd | Wholesale & retail | 2024 |
| Chorlton Homes Limited | Professional & scientific | 2007 |
| Chosen IT Ltd | Information & communication | 2023 |
| Chosen Ltd | Wholesale & retail | 2026 |
| Chottabella Holdings Ltd | Administrative & support | 2025 |
| Chottu Limited | Real estate | 2025 |
| Choudhary Holdings Ltd | Real estate | 2025 |
| Choudhary’S Vision Ltd | Wholesale & retail | 2025 |
| Chouhan Consultancy Limited | Administrative & support | 2014 |
| Chouhan Investments Limited | Real estate | 2018 |
| Chouhan Records Ltd | Information & communication | 2023 |
| Chouhan Rentals LLP | | 2019 |
| Chow Main Limited | Hospitality | 2019 |
| Chrane Ltd | Information & communication | 2018 |
| Chris Allen Photography Limited | Professional & scientific | 2009 |
| Chris Bailey Electrical Limited | Construction | 2003 |
| Chris Greenwell Consulting Limited | Administrative & support | 2021 |
| Chris Knight Motorcycles Ltd | Wholesale & retail | 2019 |
| Chris Mccahon Building Services Limited | Construction | 2007 |
| Chris Meynell & Family Ltd | Other services | 2013 |
| Chris Morley Utilities Ltd | Public administration | 2025 |
| Chris Siddons Building & Property Repair Ltd | Construction | 2019 |
| Chris Webb Plumbing Ltd | Construction | 2017 |
| Chris Whitmore Associates Limited | Professional & scientific | 1975 |
| Chrisalid Limited | Financial services | 2013 |
| Chrisham Healthcare Ltd | Health & social care | 2022 |
| Chrislexia Limited | Information & communication | 2025 |
| Chrismek Enterprises Ltd | Education | 2026 |
| Christelow Property Ltd | Real estate | 2022 |
| Christians Aware | Education | 1989 |
| Christie Holyland Limited | Professional & scientific | 1997 |
| Christine-Marie Care Limited | Administrative & support | 2017 |
| Christlife Faith Ministries Ltd | Other services | 2021 |
| Christopher Ball Limited | Financial services | 2012 |
| Christopher Rodwell & Co. Limited | Construction | 2003 |
| Christopher Samuel Consultancy Ltd | Professional & scientific | 2026 |
| Christopher Samuel Ltd | Arts & recreation | 2018 |