| Chaos Theory Limited | Professional & scientific | 2024 |
| Chapel Moor Residential Properties Limited | Households | 2024 |
| Chapel Street Mini Market Ltd | Wholesale & retail | 2026 |
| Chapman Holdings Limited | Construction | 2021 |
| Characharis Ltd | Health & social care | 2022 |
| Charles and Dianna Property Ltd | Real estate | 2025 |
| Charlie Alpha Foxtrot Limited | Other services | 2019 |
| Charlie's Online Goods Ltd | Wholesale & retail | 2024 |
| Charlies House Limited | Professional & scientific | 2023 |
| Charlton Mews (Hull) Management Company Limited | Real estate | 2007 |
| Charlton's Plastering Ltd | Construction | 2010 |
| Chasing Caffeine Ltd | Hospitality | 2026 |
| Chassis Solutions Limited | Manufacturing | 2014 |
| Chatt House Ltd | Real estate | 2025 |
| Chaucer Foods Baked Limited | Manufacturing | 1982 |
| Chaucer Foods Limited | Manufacturing | 1996 |
| Chaucer Foods UK Limited | Manufacturing | 2026 |
| Cheap Mortgages Limited | Financial services | 2016 |
| Cheap Neckers Ltd | Wholesale & retail | 2024 |
| Cheaplife Ltd | Wholesale & retail | 2020 |
| Check Environmental Limited | Professional & scientific | 2014 |
| Checkline Europe Ltd | Wholesale & retail | 2010 |
| Chedacs Limited | Real estate | 2021 |
| Cheerful Badger Ltd | Transport & logistics | 2024 |
| Cheesybites HU10 Ltd | Hospitality | 2025 |
| Cheezy 1 Limited | Hospitality | 2026 |
| Chelly Welly Baby Ltd | Extraterritorial | 2025 |
| Chen Developments Ltd | Construction | 2009 |
| Chen's Property (Hull) Limited | Real estate | 2016 |
| Cheng & Chen Ltd | Hospitality | 2024 |
| Chengs CAD Studio Limited | Information & communication | 2006 |
| Chercleaning Ltd | Administrative & support | 2025 |
| Cherine's Shine Cleaners Ltd | Administrative & support | 2021 |
| Cherry Blossom Farm Ltd | Hospitality | 2025 |
| Cherry Brickwork Limited | Construction | 2016 |
| Cherry Tree Developments (Hull) Limited | Real estate | 2013 |
| Cherry Tree Equestrian Centre Ltd | Agriculture & fishing | 2025 |
| Cherry Tree Equity Ltd | Households | 2016 |
| Cherrygold Ltd | Professional & scientific | 2002 |
| Cheshire Therapy Centre Ltd | Health & social care | 2024 |
| Chesna Collections Ltd | Wholesale & retail | 2025 |
| Chestnut Dairies Limited | Manufacturing | 1990 |
| Chestnut Homes (KM) Coningsby Management Company Limited | Real estate | 2017 |
| Chestnut Homes Management Company (Coningsby Phase 2) Limited | Households | 2014 |
| Chez Cognac Restaurant Ltd | Hospitality | 2024 |
| Chfitness Coaching Ltd | Other services | 2021 |
| Chfp Developments Limited | Real estate | 2017 |
| Chiasons Medical Ltd | Real estate | 2019 |
| Chic Kidz Limited | Wholesale & retail | 2013 |
| Chicc Interiors Ltd | Professional & scientific | 2026 |
| Chicken Embassy Limited | Hospitality | 2025 |
| Chicken George Town Ltd | Hospitality | 2026 |
| Chicken&More Ltd | Hospitality | 2025 |
| Child Dynamix | Health & social care | 2005 |
| Child Dynamix Trading Limited | Extraterritorial | 2006 |
| Child of GOD Ltd | Information & communication | 2025 |
| Chill WBC Limited | Health & social care | 2016 |
| Chillax Hull Ltd. | Hospitality | 2011 |
| Chilli Bits Ltd | Wholesale & retail | 2019 |
| Chilli Restaurants Limited | Hospitality | 2008 |
| Chiltern Build Ltd | Administrative & support | 2017 |
| Chiltern Place (Malton) Management Company Limited | Households | 2018 |
| Chimera Law Solutions Limited | Public administration | 2025 |
| Chimna Nulu Muogu Ltd | Health & social care | 2025 |
| China Bar Limited | Hospitality | 2024 |
| Chinese Laundry (Hull) Limited | Wholesale & retail | 2004 |
| Chinese Whispers (Hull) Limited | Hospitality | 2024 |
| Chip Automotive Ltd | Wholesale & retail | 2025 |
| Chipi Limited | Real estate | 2024 |
| Chipping Dawson Enterprises Limited | Real estate | 2005 |
| Chiron Health Limited | Professional & scientific | 2020 |
| Chiru Road Transport Limited | Transport & logistics | 2023 |
| Chisale Drivers Ltd | Transport & logistics | 2024 |
| Chisom Ltd | Wholesale & retail | 2023 |
| Chloe Ladlow Hair Limited | Other services | 2024 |
| Chloés Hull Limited | Health & social care | 2024 |
| CHM Beauty Ltd | Other services | 2025 |
| CHM Yorkshire Ltd | Real estate | 2024 |
| Chnfoshan. Ltd | Hospitality | 2023 |
| Choices & Rights Disability Coalition | Health & social care | 2000 |
| Chopstick House Ltd | Hospitality | 2025 |
| Chorley Consulting Limited | Professional & scientific | 2011 |
| Chorlton Physiotherapy Ltd | Health & social care | 2026 |
| CHPT2 Solutions Limited | Professional & scientific | 2023 |
| Chris 24 Limited | Construction | 2017 |
| Chris Ashworth Hair Ltd | Other services | 2021 |
| Chris Butters Property Services Ltd | Construction | 2019 |
| Chris Chadwick Limited | Construction | 2002 |
| Chris Efemena Thriving Limited | Health & social care | 2016 |
| Chris Young Services Limited | Wholesale & retail | 2020 |
| Chriscott Leisure Ltd | Hospitality | 2026 |
| Chriss Kids Limited | Health & social care | 2026 |
| Chrissrofood Limited | Manufacturing | 2025 |
| Christ the Redeemer Ministry UK Ltd | Other services | 2024 |
| Christamed Surgical Limited | Extraterritorial | 2016 |
| Christerra Limited | Transport & logistics | 2025 |
| Christopher Black Logistics Limited | Transport & logistics | 2017 |
| Christopher Nwoko Services Limited | Health & social care | 2023 |
| Christopher’S Bar Ltd | Hospitality | 2025 |
| Chrscents Ltd | Wholesale & retail | 2025 |