| Clevermax Productions Limited | Information & communication | 2005 |
| Click Click Travel Ltd | Administrative & support | 2019 |
| Close Offshore Services Limited | Professional & scientific | 2011 |
| Coastal Woodwork Ltd | Manufacturing | 2017 |
| Coco-Boo Lingerie Limited | Wholesale & retail | 2018 |
| Coconut Palm Jerk Centre Ltd | Hospitality | 2016 |
| Cocuun Ltd | Construction | 2017 |
| Code Local Ltd | Wholesale & retail | 2023 |
| Collective Construction Limited | Construction | 2014 |
| Comfasleep Ltd | Manufacturing | 2019 |
| Comfyy Sleep (Yorks) Ltd | Wholesale & retail | 2017 |
| Commercial Properties Consultants Ltd | Professional & scientific | 2019 |
| Compass Personnel Solutions Limited | Administrative & support | 2020 |
| Concrete-London Brand Consultancy Ltd | Professional & scientific | 2017 |
| Conker Nation Limited | Construction | 2003 |
| Construction & M&E Planning Limited | Construction | 2013 |
| Consulting & Marketing Limited | Administrative & support | 2009 |
| Coopers of Ilkley Limited | Other services | 2015 |
| Corby Garden Machinery Limited | Other services | 2016 |
| Cornerstone Autos Limited | Wholesale & retail | 2014 |
| Cortex Services (BMS) Limited | Professional & scientific | 2014 |
| Cosens Building Services Limited | Construction | 2020 |
| Countreeside Limited | Administrative & support | 2017 |
| Country Farm Cakes Limited | Manufacturing | 2004 |
| Countrymans Contractors Limited | Other services | 2003 |
| CPB Electrical Solutions Ltd | Construction | 2018 |
| CPC Electrical Ltd | Construction | 2014 |
| Cracking Racking Group Ltd | Wholesale & retail | 2018 |
| Craig Carter Limited | Construction | 2009 |
| Crazy Tags Ltd | Wholesale & retail | 2022 |
| Create AV (UK) Limited | Administrative & support | 2011 |
| Creative Aura Ltd | Information & communication | 2012 |
| Crimson Textile Ltd | Wholesale & retail | 2009 |
| Crnewman Associates Limited | Professional & scientific | 2023 |
| Crown Gardens Limited | Hospitality | 2007 |
| CRS Professionals (UK) Limited | Administrative & support | 2007 |
| Cruxadventure Limited | Wholesale & retail | 2013 |
| Crystal Fires Limited | Manufacturing | 2001 |
| Crystal Palace Plastering Ltd | Construction | 2015 |
| CS Car & Van Sales Limited | Wholesale & retail | 2009 |
| Ctdec Ltd | Construction | 2017 |
| CTL Steele Services Limited | Administrative & support | 2017 |
| Culverhouse Gardens Limited | Administrative & support | 2008 |
| Currency Communications Ltd | Professional & scientific | 2017 |
| CX Brokers Ltd | Administrative & support | 2017 |
| Cylinder Repair Services Southeast Ltd | Manufacturing | 2018 |
| D & M Haulage Limited | Transport & logistics | 2013 |
| D Juleff Operator Services Ltd | Administrative & support | 2015 |
| D Mcpherson Ltd | Construction | 2019 |
| D&S Plumbing and Building Limited | Construction | 2013 |
| D.C. Site Serve Ltd | Construction | 2012 |
| Daisy Restaurants Ltd | Hospitality | 2020 |
| Daisy Ventures Limited | Health & social care | 2020 |
| Daly Projects Ltd | Construction | 2014 |
| Daniel Morris Technical Services Ltd | Professional & scientific | 2015 |
| Danny Interiors Ltd | Construction | 2009 |
| Darago Limited | Water & waste | 2018 |
| Dartford Plumbing (Dpms) Ltd | Construction | 2016 |
| Datalight Consulting Limited | Administrative & support | 2017 |
| Datta Business Solutions Ltd | Arts & recreation | 2019 |
| David Hagyard Limited | Wholesale & retail | 2019 |
| Davtat Consultancy Services Ltd | Administrative & support | 2022 |
| Dbtc South West Limited | Real estate | 2022 |
| DC 1888 Print Limited | Manufacturing | 2022 |
| DCW Hair Ltd | Other services | 2018 |
| DDB Total Property Solutions Ltd | Construction | 2012 |
| Dear Grace Home Limited | Wholesale & retail | 2019 |
| Debenvale Limited | Manufacturing | 2005 |
| Dedicato Construction Limited | Construction | 2013 |
| Defusion Recruitment Ltd | Construction | 2008 |
| Deja Brew Swanage Limited | Hospitality | 2017 |
| Delia Nichols Enterprise Limited | Wholesale & retail | 2009 |
| Delish Deli Ltd | Hospitality | 2021 |
| Denito Ltd | Hospitality | 2023 |
| Design and Manage Limited | Construction | 2016 |
| Design in the Shires Ltd | Administrative & support | 2019 |
| Devonshire Stables Limited | Construction | 2012 |
| Dirty Burger Bros Ltd | Hospitality | 2020 |
| Display Standz UK Ltd | Administrative & support | 2016 |
| DNA Manufacturing Clothing Limited | Manufacturing | 2018 |
| DNB Electrical Limited | Construction | 2016 |
| DOM Restaurant Limited | Hospitality | 2013 |
| DP Marketing Communications Ltd | Other services | 2017 |
| DPR Services Ltd | Professional & scientific | 2019 |
| Drain Surgeons Ltd | Administrative & support | 2017 |
| Dream to Achieve Ltd | Wholesale & retail | 2019 |
| Driving Lives Group Ltd | Transport & logistics | 2021 |
| Dunsmore Care Solutions Limited | Health & social care | 2010 |
| Durham Heating Services Ltd | Construction | 2019 |
| DW Innovations Ltd | Arts & recreation | 2022 |
| Dynamic Buys Ltd | Wholesale & retail | 2019 |
| E.G.Howland Rail Services Ltd | Construction | 2016 |
| Eagle Tavern (Kent) Limited | Hospitality | 2013 |
| Earl Roofing Limited | Construction | 2016 |
| East Lancs Construction Ltd | Construction | 2016 |
| Eastlea Care Plus Ltd | Health & social care | 2017 |
| Easy Studios Limited | Arts & recreation | 2018 |
| Easyhire Technologies Ltd | Information & communication | 2017 |
| EAT Like an Adult Limited | Professional & scientific | 2017 |
| Ebike Experts Ltd | Wholesale & retail | 2007 |