| Cole Valley Consultants Limited | Financial services | 2020 |
| Cole Valley Store Limited | Wholesale & retail | 2022 |
| Colebourne Properties Limited | Real estate | 2016 |
| Colebridge Enterprises Limited | Health & social care | 2013 |
| Coleman & Company Limited | Construction | 1962 |
| Coleman & Company Plant Hire Limited | Extraterritorial | 2011 |
| Coleman & Company Specialist Cutting Services Limited | Construction | 2003 |
| Coleman Engineering Services Limited | Construction | 2015 |
| Coleman Regeneration Limited | Professional & scientific | 1972 |
| Coleman Remediation Services Limited | Water & waste | 2002 |
| Coleman Studios Ltd | Real estate | 2018 |
| Coleraine Properties Limited | Real estate | 2020 |
| Coleridge (UK) Limited | Wholesale & retail | 1994 |
| Coleridge Law Ltd | Professional & scientific | 2014 |
| Coles Autotech Ltd | Wholesale & retail | 2021 |
| Coles C Ltd | Wholesale & retail | 2024 |
| Coles Fine Finishes Limited | Construction | 2004 |
| Coles of Birmingham Limited | Transport & logistics | 1979 |
| Coleshill Aluminium Limited | Manufacturing | 1957 |
| Coleshill Auto Centre Limited | Wholesale & retail | 2009 |
| Coleshill Balti Ltd | Hospitality | 2012 |
| Coleshill Beauty Ltd | Other services | 2017 |
| Coleshill IND LLP | | 2012 |
| Coleshill JET Washers Ltd | Administrative & support | 2024 |
| Coleshill on Stage Ltd | Arts & recreation | 2021 |
| Coleshill Secure Storage Ltd | Transport & logistics | 2011 |
| Coleshill Shoe Repairs Limited | Other services | 2008 |
| Coleshill Tipper Services Ltd | Transport & logistics | 2020 |
| Colesley Court Management Company Limited | Administrative & support | 2005 |
| Coley & Co Property Management Ltd | Real estate | 2025 |
| Coley & Tilley LLP | | 2018 |
| Coley and Wilkes Limited | Water & waste | 1976 |
| Coleygoods Ltd | Wholesale & retail | 2019 |
| Colgrace Ltd | Manufacturing | 2025 |
| Colibri Distributions Ltd | Wholesale & retail | 2023 |
| Colinkindustrial Ltd | Wholesale & retail | 2025 |
| Colins Surfacing Ltd | Construction | 2021 |
| Colipo TAH Ltd | Health & social care | 2024 |
| Coliseum Coaches Limited | Extraterritorial | 1963 |
| Collab Creative Agency Ltd | Professional & scientific | 2024 |
| Collapink Ltd | Administrative & support | 2023 |
| Collect Cloud Enterprise Ltd | Wholesale & retail | 2023 |
| Collectable Cards Direct Limited | Wholesale & retail | 2022 |
| Collectahub Ltd | Transport & logistics | 2025 |
| Collectibles Games and Toys Limited | Wholesale & retail | 2025 |
| Collectiphy Limited | Wholesale & retail | 2025 |
| Collective Law Solicitors Ltd | Professional & scientific | 2020 |
| Collective Luxe Ltd | Wholesale & retail | 2025 |
| Collective Software Solutions Limited | Information & communication | 2019 |
| Collective Visual Limited | Information & communication | 2013 |
| Collectivetech Limited | Transport & logistics | 2019 |
| Collectobros Ltd | Wholesale & retail | 2025 |
| Colleen Phelan Limited | Manufacturing | 2019 |
| College Bar Limited | Hospitality | 2016 |
| College Drinks Ltd | Wholesale & retail | 2016 |
| College Express Ltd | Wholesale & retail | 2026 |
| College of Central England Ltd | Education | 2022 |
| College of Dentistry Limited | Education | 2018 |
| College of Social Work | Other services | 2010 |
| College Road Store Ltd | Wholesale & retail | 2024 |
| College Road Supermarket Ltd | Wholesale & retail | 2025 |
| College Stores (Birmingham) Ltd | Wholesale & retail | 2025 |
| Colleran Safety Ltd | Construction | 2014 |
| Colley Empire Limited | Real estate | 2023 |
| Collier Gardens Management Company Ltd | Households | 2022 |
| Collier Motor Group Limited | Wholesale & retail | 1926 |
| Collingbourne Day Nursary Ltd | Education | 2024 |
| Collingtree Construction Limited | | 1983 |
| Collingwood Chiropody & Podiatry Limited | Health & social care | 2018 |
| Collingwood the County Jewellers Limited | Extraterritorial | 1988 |
| Collins & Clark Developments (Little Melton) Limited | Construction | 2020 |
| Collins Accountants Limited | Professional & scientific | 2023 |
| Collins Brands Ltd | Wholesale & retail | 2026 |
| Collins Builders Ltd | Construction | 2021 |
| Collins Co Group Ltd | Construction | 2021 |
| Collins Electrical Wholesale Limited | Wholesale & retail | 2013 |
| Collins Group Holdings Ltd | Financial services | 2021 |
| Collins House Limited | Health & social care | 2024 |
| Collins Payroll Services Limited | Professional & scientific | 2019 |
| Colloff Construction Ltd | Construction | 2025 |
| Colman Investments Limited | Real estate | 1959 |
| Colmi Limited | Wholesale & retail | 2024 |
| Colmore Associates Limited | Professional & scientific | 2020 |
| Colmore Business District Limited | Public administration | 2008 |
| Colmore Care Ltd | Health & social care | 2024 |
| Colmore Consulting Limited | Professional & scientific | 2019 |
| Colmore Education Recruitment Ltd | Administrative & support | 2020 |
| Colmore Estates Limited | Real estate | 2010 |
| Colmore Intermediate Ltd | Financial services | 2015 |
| Colmore Lifting Limited | Professional & scientific | 2010 |
| Colmore Overseas Holdings Limited | Professional & scientific | 1936 |
| Colmore Partners Limited | Financial services | 2018 |
| Colmore PS Ltd | Financial services | 2016 |
| Colmore Square LLP | | 2004 |
| Colonial Enterprises Ltd | Information & communication | 2011 |
| Colony Barbers Ltd | Other services | 2023 |
| Colony Capital UK, Ltd | Real estate | 2014 |
| Color Confidence Limited | Extraterritorial | 1981 |
| Colorado Eco Expert Ltd | Construction | 2018 |
| Colorific Solutions Limited | Administrative & support | 2013 |