| Crawford & Company Barbers Ltd | Other services | 2025 |
| Crazypew Creative Ltd | Administrative & support | 2025 |
| Creations by Bespoke | Health & social care | 2019 |
| Creative Arts Hub CIC | Arts & recreation | 2011 |
| Croisdale & Co Ltd | Professional & scientific | 2001 |
| Cross Fell Ltd | Information & communication | 2011 |
| Crystal Clear Properties 2022 Limited | Real estate | 2022 |
| CS QA Consultancy Ltd | Professional & scientific | 2026 |
| Cssk IT Consulting Limited | Information & communication | 2021 |
| Cultured Creams Ltd | Manufacturing | 2021 |
| Cupushi Coffee House & Kitchen Limited | Hospitality | 2018 |
| CVT Systems Ltd | Manufacturing | 2022 |
| D & L Redfearn Solutions Limited | Construction | 2012 |
| D and M Packaging Supplies Limited | Wholesale & retail | 2002 |
| D&G Stays Ltd | Households | 2025 |
| D. Aveyard Opticians Limited | Wholesale & retail | 2003 |
| D.D.H. Services Ltd. | Health & social care | 1996 |
| DA Galindo Limited | Other services | 2024 |
| DAC Maintenance Services Limited | Construction | 2015 |
| Darren Senior Limited | Health & social care | 2012 |
| Darren Smith Builders (2016) Limited | Construction | 2016 |
| Darren Smith Builders (2025) Limited | Construction | 2025 |
| Darren Smith Builders Limited | Construction | 1986 |
| Darren Smith Homes Limited | Real estate | 2010 |
| Dawsonite Ltd | Hospitality | 2025 |
| DCH Assets Ltd | Real estate | 2023 |
| DEL SOL Air Systems Limited | Construction | 1968 |
| Dencroft Financial Planning Limited | Financial services | 2021 |
| Dennisview Consulting Ltd | Administrative & support | 2025 |
| Design Contract Flooring Limited | Construction | 2009 |
| Design TEX Ltd | Manufacturing | 2023 |
| Dhesi Properties Ltd | Real estate | 2017 |
| Diecast Works Limited | Wholesale & retail | 2026 |
| Different Eyes Limited | Professional & scientific | 2008 |
| Different Peer Limited | Professional & scientific | 2019 |
| Digital Incite and Matter Ltd | Information & communication | 2021 |
| Digital Reach Media Ltd | Professional & scientific | 2017 |
| DIY Balustrades Limited | Wholesale & retail | 2024 |
| DIYDIRECT2ME Ltd | Wholesale & retail | 2013 |
| DJ Gardner & Co Ltd | Construction | 2026 |
| DKB Training Associates Limited | Professional & scientific | 2008 |
| Dkko Limited | Real estate | 2015 |
| Dock & Quay Limited | Real estate | 2025 |
| Dolby Plumbing Limited | Construction | 2009 |
| Dolzera Ltd | Wholesale & retail | 2025 |
| Domi Healthcare Ltd | Professional & scientific | 2022 |
| DR Helen Spencer Limited | Real estate | 2010 |
| DR. Reddy's Laboratories (EU) Limited | Manufacturing | 1987 |
| DRA Property & Lettings Limited | Real estate | 2017 |
| Drummond Energy Limited | Professional & scientific | 2020 |
| Dynamic Steel Holdings Limited | Financial services | 2024 |
| Dynamic Steel Services (Leeds) Limited | Construction | 2003 |
| Dyson Black Limited | Hospitality | 2005 |
| Eastthorpe Hall Limited | Real estate | 2021 |
| Echo Finance Limited | Information & communication | 2009 |
| Echo Holdings Group Limited | Financial services | 2017 |
| Eco GAS (Yorkshire) Ltd | Construction | 2013 |
| Eco Leisure Development Ltd | Agriculture & fishing | 2017 |
| Ecogas FM Ltd | Information & communication | 2023 |
| Ecom Supply Chain Ltd | Wholesale & retail | 2021 |
| Edvent Limited | Education | 2016 |
| Edwin Ellis & SON Limited | Wholesale & retail | 1964 |
| Elams of Mirfield Limited | Wholesale & retail | 1963 |
| Elect Group Ltd | Professional & scientific | 2020 |
| Elect Social Value CIC | Administrative & support | 2025 |
| Elect Social Value Exchange Ltd | Information & communication | 2023 |
| Elephant Care Ltd | Health & social care | 2020 |
| Elizabeth J Design Limited | Other services | 2009 |
| Elizabeth Martin Limited | Extraterritorial | 2008 |
| Elmwood Technology Limited | Information & communication | 2010 |
| Embassy Engineering Ltd | Manufacturing | 2016 |
| Embassy Freight Services (Northern) Limited | Transport & logistics | 1999 |
| Emily K Weddings Ltd | Professional & scientific | 2018 |
| Emily's Secret Limited | Hospitality | 2025 |
| Emma Weekes Art Ltd | Information & communication | 2023 |
| Empire House Dental Limited | Health & social care | 2005 |
| Energy ALL Stars Limited | Other services | 2018 |
| Enertecgreen Limited | Manufacturing | 2014 |
| Engage Retain Limited | Professional & scientific | 2021 |
| ENT Utopia Healthcare Ltd | Health & social care | 2019 |
| Equipment 4 ALL Sport (UK) Limited | Manufacturing | 2019 |
| Esbells Limited | Hospitality | 2020 |
| Esmt Holdings Ltd | Real estate | 2024 |
| ETG Brighouse Limited | Manufacturing | 2020 |
| Eventus Projects Limited | Information & communication | 2007 |
| Fah(Uk) Ltd | Real estate | 2023 |
| Faheej Limited | Health & social care | 2013 |
| Faheens Properties Ltd | Financial services | 2019 |
| Fantastic Cloud Services Limited | Information & communication | 2014 |
| Fccp Consulting Services Limited | Extraterritorial | 2018 |
| Feel Good Skin Ltd | Health & social care | 2009 |
| Feelgood Aesthetics Limited | Health & social care | 2017 |
| Feeling Ambitious Ltd | Administrative & support | 2010 |
| Fernhurst Flooring Limited | Construction | 2025 |
| Field Energy Ltd | Manufacturing | 2012 |
| Field-Pro Ltd | Information & communication | 2025 |
| Finching Meadows Limited | Hospitality | 2022 |
| Finthorpe Investments Limited | Other services | 2019 |
| FIR Cottage Cars Ltd | Wholesale & retail | 2019 |
| Firth Property Limited | Real estate | 2012 |