| CA11JNR Ltd | Transport & logistics | 2024 |
| CAA Consultancy Limited | Information & communication | 2007 |
| CAB Electrical Services Ltd | Construction | 2026 |
| CAB Leisure Homes Ltd | Real estate | 2023 |
| Cabal Painting Ltd | Arts & recreation | 2026 |
| Cabalot Dispatch Limited | Information & communication | 2025 |
| Cabbuyer Limited | Information & communication | 2013 |
| Cabin Craft Plus Ltd | Manufacturing | 2025 |
| Cableford Management Limited | Real estate | 2004 |
| Cablelogic Limited | Professional & scientific | 1998 |
| Cables & Conductors Limited | Professional & scientific | 1995 |
| Cablex Car Audio Limited | Wholesale & retail | 2003 |
| Cablex Limited | Real estate | 1985 |
| Cabot Regulatory Writing Ltd | Professional & scientific | 2026 |
| Cacon Ltd | Financial services | 2021 |
| Cadastral Limited | Professional & scientific | 2026 |
| Cadburys Village Ltd | Wholesale & retail | 2026 |
| Caddick Davies Solicitors Limited | Professional & scientific | 2014 |
| Cader Idris Outdoor Gear Ltd | Wholesale & retail | 2026 |
| Cadfrida Ltd | Wholesale & retail | 2023 |
| Cadrim Limited | Manufacturing | 2025 |
| Caerus Skincare Ltd | Wholesale & retail | 2025 |
| Cafe 23 Limited | Hospitality | 2015 |
| Cafe DE Paris(Bridgwater) Ltd | Hospitality | 2019 |
| Cafe DIG Inn Ltd | Hospitality | 2025 |
| Cafe Idil Ltd | Hospitality | 2025 |
| Cafe Juno Ltd | Hospitality | 2020 |
| Cafe Lixi Ltd | Hospitality | 2025 |
| Cafe Lucaya Limited | Hospitality | 2022 |
| Cafe Nest Liverpool Ltd | Hospitality | 2026 |
| Cafe Nest Ltd | Hospitality | 2017 |
| Cafe NO9 Ltd | Hospitality | 2019 |
| Cafe Sports England (Liverpool) Ltd | Hospitality | 2003 |
| Cafe Tabac Limited | Hospitality | 2025 |
| Cafe Vanilla L4 NW Limited | Hospitality | 2026 |
| Cafe Vanilla Merseyside Ltd | Hospitality | 2016 |
| Cafeteria AL Yemen Ltd | Hospitality | 2023 |
| Cafeteria Castro Ltd | Hospitality | 2022 |
| Caffetteria Dantonio Ltd | Hospitality | 2017 |
| Cafmed Ltd | Health & social care | 2022 |
| Café Elite Ltd | Hospitality | 2025 |
| CAG MES Services Limited | Extraterritorial | 2017 |
| CAG Solutions Limited | Professional & scientific | 2017 |
| Cage Security (North West) Limited | Administrative & support | 2023 |
| Cahita Ltd | Hospitality | 2016 |
| Caielle Ltd | Professional & scientific | 2024 |
| Caife Brea Ltd | Manufacturing | 2024 |
| Cains Electrical Services Ltd | Construction | 2018 |
| Cairns Consulting Ltd | Professional & scientific | 2025 |
| Cairns Facility Services Ltd | Administrative & support | 2014 |
| Cairns Hill Leisure Ltd | Hospitality | 2025 |
| Cairns Property Services Ltd | Real estate | 2018 |
| Caitlin Palmer Hair and Makeup Ltd | Other services | 2025 |
| CAJ Productions Limited | Arts & recreation | 2025 |
| CAJ Technology Limited | Information & communication | 2019 |
| Cajh Limited | Manufacturing | 2023 |
| Cake Chester Limited | Wholesale & retail | 2009 |
| Cake Holdings Limited | Financial services | 2008 |
| Cake Solutions Limited | Information & communication | 2001 |
| Cakes by Andrew Ltd | Hospitality | 2017 |
| CAL Electrical Services NW Limited | Construction | 2021 |
| CAL INT (UK) Limited | Professional & scientific | 2016 |
| CAL Webb Fitness Limited | Other services | 2020 |
| Cal-Jona Ltd | Construction | 2022 |
| Calak Properties Ltd | Real estate | 2017 |
| Calamazes Limited | Real estate | 2017 |
| Calaxor Limited | Wholesale & retail | 2003 |
| Calcaria Hub Limited | Real estate | 2023 |
| Calci Security Solutions Ltd | Administrative & support | 2013 |
| Calculated Performance (Hub 1) Ltd | Other services | 2024 |
| Calculated Performance (Hub 2) Ltd | Other services | 2024 |
| Calculated Performance (Hub 3) Ltd | Other services | 2024 |
| Calculated Performance (Hub 4) Ltd | Other services | 2024 |
| Calculated Performance (Hub 5) Limited | Other services | 2025 |
| Calculated Performance (Hub 6) Ltd | Other services | 2026 |
| Calculated Performance Cous Ltd | Information & communication | 2024 |
| Calculated Performance Franchising Ltd | Education | 2025 |
| Calculated Performance Ltd | Other services | 2020 |
| Calculus Ltd | Information & communication | 2025 |
| Caldav TS Limited | Wholesale & retail | 2025 |
| Caldeira Holdings Limited | Real estate | 2009 |
| Caldeira Limited | Manufacturing | 1996 |
| Calder Breaks CIC | Health & social care | 2003 |
| Calder Business Consulting Ltd | Professional & scientific | 2023 |
| Calder Contractors Ltd | Construction | 2012 |
| Calder Drive Flats Association Limited | Real estate | 1967 |
| Calder Estates Ltd | Real estate | 2000 |
| Calder Facilities Management Limited | Construction | 1991 |
| Calder Living Limited | Health & social care | 2023 |
| Calder Park Court (Leaseholds) Limited | Households | 1971 |
| Calderstone Estates Limited | Real estate | 2017 |
| Calderstone Homes Ltd | Real estate | 2021 |
| Calderstone Surveying Ltd | Professional & scientific | 2026 |
| Calderstones Bespoke Joinery Ltd | Construction | 2015 |
| Calderstones Commercial Ltd | Wholesale & retail | 2020 |
| Calderstones Consultancy Service Ltd | Education | 2020 |
| Calderstones Consulting Ltd | Professional & scientific | 2013 |
| Calderstones Estates Limited | Real estate | 2021 |
| Calderstones Investment Group Ltd | Administrative & support | 2026 |
| Calderstones Investments | Real estate | 2025 |