| CDS Newmarket Ltd | Financial services | 2022 |
| CDS Print Services Ltd | Information & communication | 2024 |
| Cdsb Properties LLP | | 2009 |
| CDV Solutions Limited | Extraterritorial | 2007 |
| Cdwalls Ltd | Professional & scientific | 2022 |
| CE Building & Joinery Solutions Ltd | Construction | 2020 |
| CE Estimating Ltd | Professional & scientific | 2025 |
| CE Leisure Limited | Extraterritorial | 2019 |
| CE2G Ltd | Information & communication | 2013 |
| CEA Legal Limited | Other services | 2019 |
| CEA Limited | Professional & scientific | 2020 |
| Ceacca Holdings Limited | Financial services | 2022 |
| Ceasar Zeus Limited | Administrative & support | 2025 |
| Ceasars Kebab Ltd | Hospitality | 2024 |
| Ceathair Ltd | Construction | 2024 |
| CEC Lettings Ltd | Real estate | 2022 |
| CEC Yorkshire Ltd | Construction | 2010 |
| Cece Jewellery Limited | Manufacturing | 2022 |
| Cecil & Larter Limited | Wholesale & retail | 1977 |
| Cecil Jackson & Co Ltd | Real estate | 2019 |
| CED Imaging Limited | Health & social care | 2025 |
| Cedar Care Solutions Limited | Health & social care | 2018 |
| Cedar City Health Ltd | Health & social care | 2026 |
| Cedar Court (Harrogate Road) Limited | Hospitality | 1960 |
| Cedar Developments (Yorkshire) Limited | Real estate | 2021 |
| Cedar Lodge Holdings Limited | Financial services | 2023 |
| Cedar Technologies Ltd | Information & communication | 2015 |
| Cedarsauto Limited | Wholesale & retail | 2025 |
| Cedron Limited | Other services | 2018 |
| CEE Equity Partners LP | | 2025 |
| Ceejays PUB Co Limited | Hospitality | 2026 |
| Ceem Heritage Mart Ltd | Wholesale & retail | 2025 |
| Ceem Investment Limited | Real estate | 2013 |
| Ceemspark Cleaning Ltd | Administrative & support | 2024 |
| Ceepee Service Limited | Health & social care | 2020 |
| Ceesay Healthcare Ltd | Health & social care | 2016 |
| Cefar Limited | Information & communication | 1999 |
| Cega Access Ltd | Manufacturing | 2026 |
| CEI Costruzione Emiliana Ingranaggi Spa Ltd | Professional & scientific | 2025 |
| Ceilic Ltd. | Professional & scientific | 1985 |
| Ceit Ltd | Information & communication | 2019 |
| Ceitlein Hydro Ltd | Energy | 2017 |
| CEK Hospitality Ltd | Hospitality | 2020 |
| Cekay Enterprises Limited | Real estate | 1992 |
| CEL Yorkshire Limited | Real estate | 2021 |
| Cel.Inc Limited | Information & communication | 2022 |
| Celdis Limited | Professional & scientific | 1977 |
| Celebrity Films International Holding Group Limited | Information & communication | 2022 |
| Celeste Charms Ltd | Real estate | 2024 |
| Celestial Church of Christ Restoration Sanctuary | Other services | 2020 |
| Celestial Legacy Ltd | Health & social care | 2026 |
| Celladoor Limited | Real estate | 2019 |
| Cellar V Limited | Real estate | 1999 |
| Celleau Ltd | Wholesale & retail | 2022 |
| Cellsya 7 Limited | Information & communication | 2009 |
| Cellular Communications Limited | Financial services | 2000 |
| Cellularevolution Limited | Professional & scientific | 2018 |
| Celly Communications Limited | Wholesale & retail | 2025 |
| Celotto Engineering & Consulting Ltd | Professional & scientific | 2023 |
| CEM Landscapes Ltd | Administrative & support | 2026 |
| CEM Properties Limited | Extraterritorial | 2016 |
| Cemetery Road (Pudsey) RTM Company Limited | Households | 2020 |
| Ceminvest Limited | Financial services | 2019 |
| Cems C&D Ltd | Real estate | 2025 |
| Cena Bistro (Leeds) Ltd | Hospitality | 2019 |
| Cend Supplies Ltd | Wholesale & retail | 2022 |
| Centac Trading Limited | Wholesale & retail | 2023 |
| Centaur House Management Limited | Households | 1997 |
| Centechnology (UK) Ltd | Construction | 1996 |
| Centerpoint Enterprises Ltd | Professional & scientific | 2020 |
| Centertek Ltd | Wholesale & retail | 2018 |
| Centis LLP | | 2022 |
| Centra BIO Limited | Professional & scientific | 2026 |
| Centra Foodmarkets (UK) Limited | Wholesale & retail | 2020 |
| Central (South East) Ltd | Construction | 2019 |
| Central Car Sales Leeds Limited | Wholesale & retail | 2018 |
| Central Care Limited | Administrative & support | 2023 |
| Central Couriers Ltd | Transport & logistics | 2025 |
| Central Fisheries Garforth Ltd | Hospitality | 2019 |
| Central Lets Leeds Ltd | Real estate | 2014 |
| Central North Leeds Primary Care Network Ltd | Health & social care | 2021 |
| Central Park (Headingley) Management Company Limited | Households | 2001 |
| Central Properties (Holdings) Ltd | Extraterritorial | 2016 |
| Central Properties (Keighley) Limited | Construction | 1958 |
| Central Properties (Leeds) Limited | Real estate | 2001 |
| Central Retail Consultants Limited | Real estate | 2024 |
| Central Retail Property Consultants (UK) Limited | Real estate | 2014 |
| Central Square Investments LLP | | 2017 |
| Central Wines Limited | Manufacturing | 2020 |
| Central Yorkshire Ltd | Real estate | 2023 |
| Centre Colours Limited | Manufacturing | 2012 |
| Centre Fillings Ltd | Hospitality | 2020 |
| Centre for Enterprise Limited | Other services | 2011 |
| Centre for IT R&D and Professional Training Ltd | Information & communication | 2024 |
| Centre for Music, Text and Cultures | Professional & scientific | 2025 |
| Centre for Women and Democracy | Education | 2007 |
| Centre Leisure Limited | Professional & scientific | 1985 |
| Centre of Statistics and Development Limited | Professional & scientific | 2017 |
| Centre Point Residents Management Company Ltd | Households | 2022 |
| Centrstage Limited | Information & communication | 2023 |