| CR Services Burnley Limited | Administrative & support | 2025 |
| Craftsman Restoration Ltd | Construction | 2010 |
| Craig Atkinson Removals Ltd | Transport & logistics | 2019 |
| Craig Charnock Ltd | Administrative & support | 2016 |
| Craig Kershaw Ltd | Construction | 2002 |
| Craig Prosser Roofing Ltd | Construction | 2019 |
| Crankay Limited | Hospitality | 2026 |
| Craven Vehicle Services Ltd | Administrative & support | 2016 |
| Craves Desserts Ltd | Hospitality | 2021 |
| CRC (Footwear) Ltd | Wholesale & retail | 2018 |
| CRC Design Limited | Professional & scientific | 2010 |
| CRC Evans UK Bidco Limited | Financial services | 2019 |
| CRC Evans UK Midco Limited | Financial services | 2019 |
| Create & Deploy Ltd | Professional & scientific | 2019 |
| Creative Clean NW Limited | Administrative & support | 2019 |
| Creative Fabric Solutions Ltd | Wholesale & retail | 2015 |
| Creative Flair Arts Limited | Arts & recreation | 2022 |
| Creative Preformed Markings Ltd | Construction | 2016 |
| Creative Spaces Burnley C.I.C. | Arts & recreation | 2017 |
| Creative Talent Management Ltd | Information & communication | 2004 |
| Creativeflow.Tv Ltd | Professional & scientific | 2014 |
| Creighton International Transport Ltd | Transport & logistics | 2025 |
| Creighton Transport Ltd | Transport & logistics | 2025 |
| Crew and Tech Services Ltd | Arts & recreation | 2018 |
| Crisp White Sheets Limited | Administrative & support | 2012 |
| Crjones Leisure Ltd | Hospitality | 2023 |
| Croft Heating & Plumbing Limited | Construction | 2001 |
| Croft Mill Wholesale Ltd | Wholesale & retail | 2019 |
| Cross Construction Ltd | Construction | 2000 |
| Cross Sticks Productions Limited | Information & communication | 1994 |
| Cross Windows & Conservatories Ltd | Construction | 2008 |
| Crossfit Clitheroe LLP | | 2011 |
| Crossland Tankers (Burnley) Limited | Manufacturing | 1993 |
| Crossley's School of Motoring Limited | Extraterritorial | 2022 |
| Crossroads in East Lancashire Limited | Health & social care | 1997 |
| Crotchets and Quavers Limited | Information & communication | 2022 |
| Crow Wood Leisure Limited | Hospitality | 2000 |
| Crowdify Global Ltd | Professional & scientific | 2018 |
| Crown Business Park Management Company Limited | Extraterritorial | 2011 |
| Crown Cabinets Limited | Manufacturing | 2010 |
| Crown Conservatories & Windows Limited | Construction | 2002 |
| Crown Healthcare Ltd | Health & social care | 2023 |
| Crownspire Living Ltd | Wholesale & retail | 2025 |
| CRS Civil Engineering Limited | Construction | 2015 |
| CRS Group Limited | Financial services | 2012 |
| CRS Plant Limited | Construction | 2001 |
| Crucial Lighting Ltd | Wholesale & retail | 2023 |
| Crumbl Desserts Ltd | Hospitality | 2025 |
| Crystal Banqueting Hall & Conference Centre Limited | Hospitality | 2022 |
| Crystal Cleaners (Bracknell) Limited | Other services | 2015 |
| Crystal Construct Limited | Information & communication | 2010 |
| Crystalbridge Ltd | Wholesale & retail | 2022 |
| Csrengineeringservices Ltd | Professional & scientific | 2023 |
| CT Bazaar Ltd | Wholesale & retail | 2026 |
| Cube HR Consultancy Ltd | Professional & scientific | 2017 |
| Cube HR Group Limited | Administrative & support | 2023 |
| Culeth Construction Limited | Construction | 1997 |
| Culeth Developments Ltd | Construction | 2006 |
| Culmore Recruitment Limited | Construction | 2016 |
| CULTIV8 Change & Advisory Limited | Professional & scientific | 2026 |
| Cultivate Training & Development Ltd | Administrative & support | 2005 |
| Cunningham Corporation Limited | Wholesale & retail | 2014 |
| Cunningham Enterprise Ltd | Administrative & support | 2022 |
| Curantis Healthcare Limited | Health & social care | 2018 |
| Cushty Solutions Ltd | Wholesale & retail | 2025 |
| Custom Smart Repairs Ltd | Wholesale & retail | 2015 |
| CUT 2 Code Ltd | Manufacturing | 2026 |
| CW Medical Ltd | Health & social care | 2025 |
| CW Resourcing Ltd | Administrative & support | 2026 |
| Cygnus Real Estate Ltd | Real estate | 2025 |
| Cyvera Tech Limited | Information & communication | 2026 |
| D & B Comer Ltd | Other services | 2014 |
| D & G Family Law Ltd | Extraterritorial | 2015 |
| D & G Slade Limited | Hospitality | 2017 |
| D & N Sprinklers Limited | Construction | 2022 |
| D and D Scaffolding (Burnley) Limited | Construction | 2008 |
| D Boat Company Ltd | Wholesale & retail | 2026 |
| D Cartmell Ltd | Agriculture & fishing | 2002 |
| D Davidson ISW Solutions Ltd | Health & social care | 2022 |
| D E S Construction Limited | Construction | 2014 |
| D Fisher Plastering Ltd | Construction | 2024 |
| D H Building & Landscape LLP | | 2016 |
| D I Hardiman Electrical Contractors Ltd | Construction | 2025 |
| D J B Business Solutions Limited | Professional & scientific | 2008 |
| D Leach Ltd | Construction | 2012 |
| D M Auto Repairs Limited | Wholesale & retail | 2024 |
| D M Industrial Insulation Ltd | Construction | 2001 |
| D Whittaker Paving Ltd | Construction | 2025 |
| D&N Holdings Midlands Limited | Financial services | 2025 |
| D. Edwards (Construction Services) Limited | Professional & scientific | 2001 |
| D.C. Coffee Ltd | Wholesale & retail | 2024 |
| D.I Halal Meat Limited | Wholesale & retail | 2019 |
| D.J.C Construction Solution Ltd | Construction | 2019 |
| D.N.H. Properties Limited | Real estate | 1969 |
| D1 Civils and Earthworks Ltd | Construction | 2026 |
| DA Solutions Group Ltd | Manufacturing | 2019 |
| Daddy's Chicken & Pizza (Padiham) Ltd | Hospitality | 2024 |
| Dads & Lads Turkish Barbers Ltd | Other services | 2020 |
| Daily Dels Ltd | Wholesale & retail | 2024 |
| Dailydock Ltd | Wholesale & retail | 2026 |