| Chestnut Dairies Limited | Hull | 1990 |
| Chestnut Field Trading Limited | Rugby | 2025 |
| Chestnut Lighting Limited | Wickford | 2007 |
| Chestnut Photographic Studios Limited | Kessingland | 2012 |
| Chestnut Registrations Limited | Bromborough | 2002 |
| Chestnutt Animal Feeds Limited | Ballymoney | 2010 |
| Chestpal Ltd | Brighton | 2022 |
| Chestwood Design Limited | Stone | 2010 |
| Cheswick Kitchen Company Limited | Campsie | 2010 |
| Cheswick Plating Services Ltd | Invergordon | 2013 |
| Cheswick UK 1988 Limited | Leeds | 1941 |
| Cheswick UK Limited | Leeds | 1988 |
| Cheswood Trading Limited | Middlesborough | 1996 |
| Chet LO Ltd | London | 2021 |
| Chet Valley Vineyard Ltd. | Bergh Apton | 2013 |
| Chetham House Limited | Stockport | 2009 |
| Chethemfoods Ltd | Pontypridd | 2026 |
| Chetland Industries Limited | Bromsgrove | 2010 |
| Cheung Fung Button Factory Ltd | Mildenhall | 2021 |
| Cheung Holdings Limited | London | 2023 |
| Cheval Holdings Limited | Corwen | 2018 |
| Cheval Liberte UK Limited | Corwen | 2005 |
| Chevalet Studio Ltd | Milton Keynes | 2025 |
| Chevalier IP Limited | London | 2009 |
| Chevalier Tech Limited | London | 2020 |
| Chevalier Technologies Limited | London | 2024 |
| Chevening Industries Limited | Reading | 2001 |
| Cheverell Limited | Marlborough | 2013 |
| Cheverton & SON Limited | Cromer | 1998 |
| Chevin Brew Co Ltd | Otley | 2017 |
| Cheviot Brewery Ltd | Cornhill On Tweed | 2017 |
| Cheviot Heat & Power Ltd | Netherton | 2013 |
| Cheviot Media Limited | Cramlington | 2011 |
| Cheviot Watches Ltd | Hexham | 2025 |
| Chevler Limited | Hengoed | 2008 |
| Chevron Aircraft Maintenance Limited | Machester | 2008 |
| Chevron Aluminium Limited | Bristol | 2013 |
| Chevron Cars Limited | Crewe | 2006 |
| Chevron Distribution Ltd | London | 2013 |
| Chevron Grey Ltd | Nottingham | 2018 |
| Chevron Heritage Ltd | Hook | 2012 |
| Chevron Racing Team Ltd | Hook | 2017 |
| Chew Valley Carpentry Ltd | Sutton | 2026 |
| Chew Valley Dairy Limited | Bristol | 2013 |
| Chew Valley Distillery Ltd | Bristol | 2020 |
| Chew Valley Hide & Skin Company Limited | Radstock | 1977 |
| Chewchoose Limited | St Albans | 2019 |
| Chewigem Group Ltd | London | 2024 |
| Chewigem International Ltd | London | 2024 |
| Chewigem Marketplaces Ltd | London | 2024 |
| Chewigem Stock Holding Ltd | London | 2024 |
| Chewigem Wholesale Ltd | London | 2024 |
| Chews Dairy Services Limited | Skipton | 2005 |
| Chewychews UK Limited | Ipswich | 2021 |
| Chewymoon Limited | London | 2015 |
| Chey International (London) Limited | London | 1987 |
| Cheyenne Holdings (UK) Ltd | London | 2025 |
| Chez Twang! Ltd | London | 2025 |
| CHF Distribution Ltd | Seven Kings | 2020 |
| CHG Manufacturing Limited | Bishop'S Stortford | 2025 |
| Chgasa Ltd | Lisburn | 2024 |
| CHH Conex Limited | Birmingham | 1990 |
| Chhaya Group Limited | Wembley | 2024 |
| CHI Feng Technology Co., Ltd | London | 2021 |
| CHI Installations Limited | Cardiff | 2019 |
| CHI Shing (U.K.) Limited | London | 1990 |
| CHI Wing Group Ltd | Stafford | 2024 |
| Chia Food (York) Limited | York | 2015 |
| Chiappa,Limited | Enfield | 1919 |
| Chiara Limited | Porthmadog | 1999 |
| Chiara Perera Jewellery Ltd | Witney | 2025 |
| Chibafu Industrial Co., Ltd | London | 2025 |
| Chibu Services Ltd | London | 2018 |
| Chic and Smile Limited | Manchester | 2025 |
| Chic Blinds Limited | Swansea | 1990 |
| Chic Chick Boutique Ltd | Mildenhall | 2024 |
| Chic Coffee Ltd | Sidcup | 2019 |
| Chic Karigari Ltd | London | 2025 |
| Chic Manufacturing Ltd | Bolton | 2018 |
| Chic Republic Co., Ltd | West Midlands, England | 2025 |
| Chic Sofas Limited | Bolton | 2018 |
| Chic Stone Limited | Northampton | 2012 |
| Chic UPH Ltd | Neath | 2015 |
| Chica Picante Salsas Ltd | London | 2026 |
| Chicadex Trendy Ltd | Oxford | 2019 |
| Chicago Coating Company Limited | Cheadle | 1997 |
| Chicane Classics Limited | Hook | 2008 |
| Chicarela Ltd | London | 2025 |
| Chicha Bakery Ltd | London | 2020 |
| Chichaven Ltd | Manchester | 2024 |
| Chichelle Ltd | London | 2019 |
| Chichester Granite Ltd | Bognor Regis | 2022 |
| Chichester Hydraulics Ltd | Chichester | 2021 |
| Chichester Property Innovations Ltd | Chichester | 2019 |
| Chichester Stoneworks (2022) Limited | Worthing | 2022 |
| Chichester Terminus Holdings PLC | Chichester | 2000 |
| Chichi Bakery Ltd | Edinburgh | 2022 |
| Chick Plastics Limited | Leicester | 1977 |
| Chicken & Pizza Box Ltd | Romford | 2025 |
| Chicken and EGG Games Ltd | Birmingham | 2025 |