| Cloudfusion Technologies Ltd | Information & communication | 2021 |
| CLS Golf Limited | Wholesale & retail | 2012 |
| Co-Lab Studios Ltd | Information & communication | 2024 |
| Coffee Culture Cafe & Eatery Limited | Professional & scientific | 2014 |
| Coffeeworks Media Ltd | Information & communication | 2017 |
| Commercial Security Services Limited | Administrative & support | 2005 |
| Compound Property Ltd | Real estate | 2023 |
| Conforth Limited | Financial services | 2021 |
| Conforth Services Limited | Other services | 2022 |
| Connect Consult Limited | Administrative & support | 2008 |
| Consolidated Property Wilmslow Limited | Construction | 1986 |
| Construction Renewable Energy Asset Management Project Services Limited | Professional & scientific | 2012 |
| Copper Beeches Arena Limited | Arts & recreation | 2011 |
| Corks OUT (Alderley Edge) Ltd | Wholesale & retail | 2019 |
| Cosy Crafts UK Limited | Real estate | 2024 |
| Court Properties (Portugal) Limited | Construction | 1963 |
| Courthill Properties Limited | Professional & scientific | 1963 |
| Cove Baby Ltd | Wholesale & retail | 2020 |
| Coventry Enterprises Limited | Professional & scientific | 2016 |
| Coventry Way Limited | Professional & scientific | 2016 |
| Covipure Limited | Professional & scientific | 2020 |
| CPG 2016 Limited | Real estate | 2016 |
| CPG Bicester Limited | Construction | 2018 |
| CPG Bristol Limited | Real estate | 2017 |
| CPG Chester Limited | Real estate | 2017 |
| CPG Development Projects Limited | Real estate | 2013 |
| CPG East Parade Limited | Real estate | 2024 |
| CPG Leeds Limited | Real estate | 2022 |
| CPG Macclesfield Limited | Real estate | 2017 |
| CPG Manchester Limited | Real estate | 2024 |
| CPG Penzance Limited | Real estate | 2016 |
| CPG ST Albans Limited | Real estate | 2018 |
| CPG Ventures Limited | Real estate | 2022 |
| CPG Wallop Limited | Real estate | 2020 |
| Craftworld (Middlebrook) Limited | Professional & scientific | 1999 |
| Cramer Properties Limited | Real estate | 1999 |
| Cross Farm Developments Limited | Construction | 2022 |
| CS Unit Holding Company Limited | Real estate | 2021 |
| Culmaine Ltd | Professional & scientific | 2024 |
| Cyberlab AI Limited | Extraterritorial | 2025 |
| Cyberlab Group Limited | Extraterritorial | 2025 |
| D13 Group Ltd | Arts & recreation | 2011 |
| Data National Limited | Professional & scientific | 2011 |
| DC Marketing & Advertising Ltd | Professional & scientific | 2022 |
| Deanbank Investments Limited | Construction | 1981 |
| Delta Newco Union Limited | Financial services | 2019 |
| Demer Properties Ltd | Real estate | 2020 |
| Dequity Capital Investments Ltd | Professional & scientific | 2020 |
| Diaspora Portfolio Limited | Administrative & support | 2015 |
| Digital and Leadership Learning Consultancy Ltd | Education | 2025 |
| Digital Storefront Limited | Wholesale & retail | 2024 |
| Dine Limited | Professional & scientific | 2005 |
| DLS Legal Services Limited | Professional & scientific | 2014 |
| DNR Medical Services Limited | Health & social care | 2011 |
| DO Lago Consulting Limited | Professional & scientific | 2023 |
| Dominion Biotech Ltd | Professional & scientific | 2024 |
| Dough Religion Limited | Hospitality | 2024 |
| DPA Clinics Limited | Professional & scientific | 2021 |
| DR Jennie Potts Limited | Professional & scientific | 2024 |
| DR Khawaja Limited | Health & social care | 2014 |
| Dreamstreamhd Ltd | Administrative & support | 2019 |
| DRM Group NW Ltd | Wholesale & retail | 2018 |
| Dropout Limited | Manufacturing | 2011 |
| DSF Healthcare Ltd | Health & social care | 2025 |
| Dubai Select Limited | Real estate | 2003 |
| Dynamo Marketing Limited | Wholesale & retail | 2012 |
| E&D Software Services Limited | Information & communication | 2025 |
| Earncott Limited | Households | 2006 |
| Easy Coaching and Consultancy Ltd | Professional & scientific | 2018 |
| Ecpr Limited | Professional & scientific | 2013 |
| ECS Recruitment Consultants Limited | Administrative & support | 2019 |
| ECS Swift Couriers Limited | Transport & logistics | 2015 |
| Edge Business Services Limited | Administrative & support | 2007 |
| Edge Cacao Ltd | Wholesale & retail | 2021 |
| Edge Management Services Limited | Professional & scientific | 2020 |
| Edge Medico-Legal Services Limited | Health & social care | 2013 |
| Edge Promotions Limited | Professional & scientific | 2019 |
| Edge Valeting Ltd | Other services | 2013 |
| Edge Wear Properties Limited | Real estate | 1996 |
| Edgey Projects Limited | Administrative & support | 2023 |
| Edgpro Investments Limited | Professional & scientific | 2010 |
| EDUC8ME Consulting Ltd | Education | 2025 |
| Egeli Ltd | Professional & scientific | 2020 |
| Elise Olivia Ltd | Wholesale & retail | 2021 |
| Elisha Kelly Ltd | Professional & scientific | 2009 |
| Elite Domicare Limited | Health & social care | 2025 |
| Elizabeth Axis Limited | Construction | 2024 |
| Elkington Events Limited | Arts & recreation | 2024 |
| Elkington Propco Limited | Real estate | 2023 |
| Elton Financial Consultants LLP | | 2011 |
| Embankment West Limited | Construction | 2015 |
| Embey Limited | Construction | 2016 |
| Emergreen Limited | Professional & scientific | 2005 |
| Emerson Commercial Developments Limited | Construction | 1971 |
| Emerson Developments (Holdings) Limited | Real estate | 1974 |
| Emerson Group Limited | Professional & scientific | 1979 |
| Emerson Holdings Group Limited | Professional & scientific | 1979 |
| Emerson International Limited | Professional & scientific | 1981 |
| Emerson Limited | Professional & scientific | 1987 |
| Emerson Management Executive Limited | Professional & scientific | 1974 |