| Cheshire Artisans Ltd | Wholesale & retail | 2023 |
| Chester and North Wales Car Sales Limited | Wholesale & retail | 2020 |
| Chester Cabs Ltd | Transport & logistics | 2025 |
| Chester Horse Driving Trials Ltd | Arts & recreation | 1997 |
| Chester Taxis Ltd | Transport & logistics | 2025 |
| Chez Aesthetics Ltd | Extraterritorial | 2023 |
| Chris Morton Associates Limited | Administrative & support | 1994 |
| Chrisali Limited | Professional & scientific | 2019 |
| Christian & Co. Ltd | Professional & scientific | 2004 |
| CJM Structures Ltd | Arts & recreation | 2013 |
| Clankers Castles Limited | Real estate | 2020 |
| Clarity Management Solutions Ltd | Professional & scientific | 2025 |
| Cloche Business Development Limited | Professional & scientific | 2016 |
| Clock House Residential Limited | Health & social care | 2018 |
| Clocktower Training Academy Limited | Public administration | 2023 |
| Clwyd Agriculture Limited | Wholesale & retail | 2017 |
| Clwyd Bakeries Ltd | Other services | 2019 |
| Clwydian Cleaning Ltd | Administrative & support | 2025 |
| Clwydian Range Distillery Limited | Manufacturing | 2018 |
| Coffee Cwtch Ltd | Hospitality | 2025 |
| Collier International Limited | Professional & scientific | 1986 |
| Colman Kayman HR Services Ltd | Administrative & support | 2018 |
| Conservation Canine UK Limited | Extraterritorial | 2012 |
| Conservation Dogs.Com Limited | Extraterritorial | 2012 |
| Copplestones Limited | Extraterritorial | 1998 |
| Core Research Ltd | Financial services | 2019 |
| Corundum Solutions Limited | Information & communication | 2020 |
| Crafty Storage Solutions Ltd | Manufacturing | 2022 |
| Craig Edwards Consultancy Limited | Professional & scientific | 2020 |
| Create Yourself Catering Limited | Hospitality | 2020 |
| Crutts Catering Ltd | Hospitality | 2015 |
| CT Veterinary Services Limited | Professional & scientific | 2015 |
| Cuddfan Fach Ltd | Hospitality | 2022 |
| Cumbria Pole Art Limited | Arts & recreation | 2014 |
| Curl UP and DYE Holywell Limited | Other services | 2022 |
| CYD Innovation Ltd | Professional & scientific | 2021 |
| D Wealth Holdings Ltd | Financial services | 2025 |
| D. Davies (Holywell) Limited | Real estate | 1978 |
| D.M. Jewell Accountancy Ltd | Professional & scientific | 2024 |
| Daisy Doodles NW Ltd | Health & social care | 2024 |
| Dangerpoint Limited | Education | 2005 |
| Dark Water Bars Ltd | Hospitality | 2023 |
| Darwin (North West) Limited | Hospitality | 2011 |
| Darwin Contract Management Limited | Administrative & support | 2008 |
| Davey Plant Hire Ltd | Administrative & support | 2024 |
| Davey Property (NW) Ltd | Real estate | 2023 |
| David Haimes Consulting Limited | Professional & scientific | 2022 |
| David Mcchesney Architect Limited | Professional & scientific | 2009 |
| Davies Build Ltd | Construction | 2012 |
| Davka Resourcing Ltd | Construction | 2018 |
| Daydream Designs Creative Agency Limited | Professional & scientific | 2019 |
| DDH Land Limited | Real estate | 2025 |
| DDP Servicing and Repairs Ltd | Manufacturing | 2024 |
| Decon's Decontamination & Hygiene Services Limited | Administrative & support | 2007 |
| DEL Construction Limited | Construction | 2018 |
| Delyn Gymnastics Limited | Administrative & support | 2019 |
| Delyn Women's AID Company Limited | Health & social care | 1992 |
| Deniz Supply and Co Ltd | Wholesale & retail | 2024 |
| Denton & Hyde Hoole Ltd | Other services | 2013 |
| Dentrite Limited | Extraterritorial | 2006 |
| Disruptive Advantage Ltd | Information & communication | 2019 |
| DJL Glamping Ltd | Hospitality | 2022 |
| DL Roberts Commercials Ltd | Other services | 2019 |
| Dorbintech Solutions Ltd | Information & communication | 2023 |
| Downes Services Limited | Professional & scientific | 2003 |
| Dragon Repairs Limited | Wholesale & retail | 2018 |
| Drawedit Limited | Professional & scientific | 1993 |
| DW Welding Ltd | Manufacturing | 2025 |
| Dylan Wynne Limited | Information & communication | 2011 |
| Dynesty Ltd | Information & communication | 2015 |
| E & J a Hone Limited | Wholesale & retail | 2004 |
| Early Explorers Flexi Care Ltd | Education | 2024 |
| EBS Consultancy Services Limited | Wholesale & retail | 2002 |
| EE Civils Ltd | Construction | 2018 |
| EHF 123 Limited | Administrative & support | 2013 |
| Elder Trees Theatre Ltd. | Education | 2025 |
| Electromesh Ltd | Extraterritorial | 2003 |
| Elevate Commercial Solutions Limited | Professional & scientific | 2024 |
| Eliot Davies Electrical Contractors Limited | Construction | 2026 |
| Emmiti Comms Ltd | Information & communication | 2018 |
| Enestee Limited | Health & social care | 2024 |
| Equine Therapeutics Limited | Professional & scientific | 2001 |
| European Lean Solutions Ltd | Administrative & support | 2017 |
| Evans Flexispace Ltd | Real estate | 2020 |
| Event Detection Dogs Limited | Administrative & support | 2017 |
| Ever 2479 Limited | Financial services | 2004 |
| Everyone Values Limited | Wholesale & retail | 2024 |
| Evidenta Ltd | Construction | 2004 |
| Express Couriers North West Limited | Transport & logistics | 2011 |
| Extraordinary Stays Limited | Real estate | 2025 |
| Ferc (Fire, Engineering & Research Centre) Limited | Professional & scientific | 2026 |
| Ffenestri Acme Windows Ltd | Construction | 2025 |
| Ffenestri D&G Windows Ltd | Construction | 2010 |
| Ffyddion CYF | Agriculture & fishing | 2025 |
| Fieldgrange Limited | Real estate | 2018 |
| Firth Mellor Holdings Limited | Wholesale & retail | 2021 |
| Fish & Pet World Ltd | Wholesale & retail | 2020 |
| Flag Leaf Limited | Administrative & support | 2007 |
| Fletcher Davies Limited | Financial services | 2006 |
| Flintshire Developments Limited | Real estate | 2013 |