| Craft Global Ltd | Wholesale & retail | 2021 |
| Craft House Commercial Limited | Manufacturing | 2025 |
| Craft Pubs Ltd. | Hospitality | 2013 |
| Crafteck Co Ltd | Construction | 2025 |
| Craig O'Dell Painting and Decorating Ltd | Construction | 2009 |
| Cranberry Panda 2.0 Limited | Administrative & support | 2021 |
| Cranberryhome Limited | Professional & scientific | 2016 |
| Cranborne Home Consultancy Limited | Professional & scientific | 2017 |
| Cranborne Place NO.1 Residents Company Limited | Households | 1991 |
| Cranbridge Associates Limited | Real estate | 2021 |
| Cranbrook (Woburn Sands) Management Limited | Administrative & support | 2018 |
| Cranbrook Trade Ltd | Other services | 2021 |
| Cranfield Commercial Services Limited | Professional & scientific | 2026 |
| Cranfield Drone Technologies Ltd | Manufacturing | 2025 |
| Cranfield Park (Residents) Management Company Limited | Households | 2017 |
| Cranfield Solutions Limited | Manufacturing | 2003 |
| Cranfield Stores Limited | Wholesale & retail | 2015 |
| Crankworkshop Ltd | Manufacturing | 2019 |
| Crash Repair Centre Ltd | Wholesale & retail | 2023 |
| Cravenhill Publishing Limited | Information & communication | 2008 |
| Cravens Heritage Trains Limited | Other services | 1999 |
| Cravo Carpentry & Interiors Limited | Construction | 2025 |
| Crawford Hair Ltd | Other services | 2017 |
| Cray Landscapes Ltd | Administrative & support | 2025 |
| Crazy Boat Lady Ltd | Administrative & support | 2024 |
| Crazy Kids Childcare Services Limited | Education | 2003 |
| Crazy Nerds Limited | Information & communication | 2023 |
| CRC Employer Services Limited | Administrative & support | 2014 |
| CRC Services Limited | Professional & scientific | 2004 |
| Crdl Limited | Wholesale & retail | 2019 |
| Creamhouse Projects Limited | Professional & scientific | 2007 |
| Createch SOL UK Ltd | Information & communication | 2024 |
| Created by NIA Ltd | Professional & scientific | 2022 |
| Creatifix Limited | Construction | 2024 |
| Creation Trading Ltd | Wholesale & retail | 2011 |
| Creative Arts Association CIC | Education | 2026 |
| Creative Carpers Ltd | Agriculture & fishing | 2019 |
| Creative CFO Ltd | Professional & scientific | 2016 |
| Creative Clarity Limited | Professional & scientific | 2005 |
| Creative Clarity Trustees Limited | Other services | 2025 |
| Creative Computing Ltd | Transport & logistics | 2009 |
| Creative Design Bulgaria Ltd | Professional & scientific | 2023 |
| Creative Floral Designs Limited | Wholesale & retail | 2014 |
| Creative Flux Ltd | Professional & scientific | 2025 |
| Creative Glass Studio Ltd | Manufacturing | 2014 |
| Creative Holdings Bedford Limited | Professional & scientific | 2009 |
| Creative Interior Contracts Limited | Construction | 1999 |
| Creative Interiors (1985) Limited | | 1985 |
| Creative Inventions Ltd | Information & communication | 2015 |
| Creative Sofa Limited | Arts & recreation | 2006 |
| Creative Technology Services Limited | Information & communication | 2018 |
| Creative Therapy Options Ltd | Health & social care | 2021 |
| Creative Ways Martial Arts Limited | Education | 2022 |
| Creativeimage Estate Service Ltd | Information & communication | 2017 |
| Creatives 2020 Limited | Professional & scientific | 2014 |
| Creativity Insight (UK) Ltd | Information & communication | 2009 |
| Creature Animation Workshop Ltd | Arts & recreation | 2017 |
| Credence Homes Limited | Real estate | 2022 |
| Credence Incorporation Limited | Information & communication | 2012 |
| Credence Motor Ltd | Wholesale & retail | 2022 |
| Credit Risk Consultancy Ltd | Professional & scientific | 2012 |
| Credo ASH Limited | Real estate | 2020 |
| Credo Berryfields Limited | Real estate | 2016 |
| Credo Newton LLP | | 2017 |
| Credo Oak Limited | Real estate | 2016 |
| Creed Conventions Ltd | Arts & recreation | 2023 |
| Creed GAS Services Limited | Construction | 2022 |
| Creeds (Southern) Limited | Wholesale & retail | 1961 |
| Creeds (UK) Limited | Professional & scientific | 1999 |
| Creme Conferences Limited | Extraterritorial | 2004 |
| Crenava Limited | Real estate | 2016 |
| Creobuild (UK) Ltd | Construction | 2015 |
| Crepes and Cones Ltd | Wholesale & retail | 2014 |
| Crescive Retail Ltd | Wholesale & retail | 2017 |
| Crest Amusements Ltd | Arts & recreation | 2024 |
| Crest Court RTM Company Limited | Households | 2023 |
| Crest Heating and Plumbing Limited | Construction | 2025 |
| Cresta Property Investment Ltd | Real estate | 2025 |
| Cresta Services Limited | Professional & scientific | 2021 |
| Crestline Builders Ltd | Construction | 2024 |
| Crestline Residential Ltd | Real estate | 2026 |
| Crestly AI Ltd | Information & communication | 2026 |
| Crestmark Facilities Management Limited | Administrative & support | 2012 |
| Crestpoint Holdings Limited | Financial services | 2024 |
| Crestra Community Interest Company | Construction | 1999 |
| Crestrock Engineering Ltd | Professional & scientific | 2025 |
| Crestrock Ltd | Real estate | 2024 |
| Cribb Autos Ltd | Wholesale & retail | 2025 |
| Cribbit Installations Limited | Construction | 2013 |
| Cricket Green Ltd | Real estate | 1991 |
| Cricket Ground Shop Ltd | Wholesale & retail | 2014 |
| Criffel Enterprises Limited | Mining & quarrying | 1992 |
| Crilda Consulting Limited | Professional & scientific | 2023 |
| Criminal Defence Milton Keynes Solicitors Ltd | Professional & scientific | 2013 |
| Cris Auto Trader Ltd | Wholesale & retail | 2025 |
| Cris Beauty Ltd | Other services | 2025 |
| Cris Go Ltd | Transport & logistics | 2024 |
| Cris Property Ltd | Households | 2025 |
| Cris VIP Transport Ltd | Transport & logistics | 2024 |
| Criscom Import-Export Ltd | Wholesale & retail | 2026 |