| Craig White Mentoring Limited | Professional & scientific | 2018 |
| Craven Establishment Ltd | Hospitality | 2016 |
| Craven Securities Ltd | Financial services | 2023 |
| Creative Noir Limited | Professional & scientific | 2013 |
| Credobrand Limited | Professional & scientific | 2017 |
| Cresswells Accountants (UK) Limited | Professional & scientific | 2014 |
| Cresswells Limited | Extraterritorial | 2012 |
| Cricket Asylum Limited | Arts & recreation | 2008 |
| Crown Construction and Site Preparation Limited | Construction | 2024 |
| CT Build North Ltd | Construction | 2025 |
| CULTIV8 Academy Ltd | Education | 2019 |
| Cvclt Enterprise Ltd | Administrative & support | 2023 |
| CWK Consultancy Limited | Other services | 2015 |
| CY Establishment Ltd | Hospitality | 2018 |
| Cyber on Demand Limited | Information & communication | 2022 |
| D a Ellis Design Services Ltd | Extraterritorial | 2013 |
| D Ellis Decorating Services Ltd | Construction | 2020 |
| D Woodhead Butchers Ltd | Wholesale & retail | 2003 |
| D-C & P Steel Frame Buildings Ltd | Construction | 2024 |
| D.R.Developments (Yorkshire) Limited | Real estate | 2019 |
| Daisy Bank Camp Limited | Hospitality | 2019 |
| Dandy Trading Co Limited | Wholesale & retail | 2020 |
| Daniel J Bradford Ltd | Manufacturing | 2022 |
| Daniel Rhodes Ltd | Wholesale & retail | 2023 |
| Daniel Watson Design Limited | Professional & scientific | 2016 |
| Dark Peak Consultancy Limited | Professional & scientific | 2014 |
| David Astin Limited | Wholesale & retail | 2023 |
| David Baker Consulting Ltd | Professional & scientific | 2024 |
| DB Access Ltd | Professional & scientific | 2017 |
| Dean Ainscough Ltd | Professional & scientific | 2026 |
| Decking 2GO Limited | Administrative & support | 2020 |
| Design Fictions Limited | Information & communication | 2016 |
| Design OPS Ltd | Information & communication | 2010 |
| Dewison Ltd | Construction | 2017 |
| DGS Engineering Design Ltd | Construction | 2011 |
| Dhces Limited | Professional & scientific | 2022 |
| Diamond Properties (Sales & Lettings) Limited | Real estate | 2016 |
| Digbytech Limited | Information & communication | 2005 |
| Digital Meme Limited | Information & communication | 2008 |
| Digitrace Ltd | Information & communication | 2021 |
| Dinnis Sutcliffe Property Ltd | Real estate | 2021 |
| Disability Support Calderdale C.I.C. | Professional & scientific | 2020 |
| DJL Groundworks Yorkshire Ltd | Construction | 2023 |
| Dogan Cafe Ltd | Hospitality | 2025 |
| Doorway Group Ltd | Manufacturing | 2025 |
| Dot-Communications & 3R-IT C.I.C. | Information & communication | 2017 |
| Dovetail Together Ltd | Professional & scientific | 2010 |
| Dower Clogs Ltd | Manufacturing | 2022 |
| Dower Limited | Manufacturing | 2016 |
| DR Hina Dental Ltd | Health & social care | 2022 |
| DR. Mark Hurst Optometrist Limited | Health & social care | 2007 |
| Dragonfly Retail Ltd | Wholesale & retail | 2019 |
| Drakes (UK) Ltd. | Manufacturing | 2012 |
| Dreamfix Properties Ltd. | Construction | 2024 |
| Drew Forsyth & Co Construction Limited | Construction | 2022 |
| Drew Forsyth & Co Furniture Ltd | Administrative & support | 2020 |
| Drew Forsyth & Co Ltd. | Manufacturing | 1998 |
| Dring Technology Solutions Limited | Information & communication | 2015 |
| Duncan Loughrey Photographer Limited | Professional & scientific | 2014 |
| Duval Investments Limited | Construction | 2013 |
| E. Brennan Computer Systems Validation Limited | Information & communication | 2013 |
| Earth Spirit Hebden Limited | Wholesale & retail | 2019 |
| Easy Access Solutions Limited | Construction | 2025 |
| Easy Care Home Improvements Ltd | Construction | 2017 |
| Edatachase Limited | Information & communication | 2005 |
| Edge Efficiency Ltd | Professional & scientific | 2019 |
| Edge of the Field Ltd | Professional & scientific | 2026 |
| Edkins Properties Ltd | Households | 2018 |
| EE Legal & Consult Ltd | Professional & scientific | 2023 |
| Effective Work Force Solutions Limited | Education | 2011 |
| EGG Power Productions Ltd | Extraterritorial | 2020 |
| EJ Electrical Services Ltd | Construction | 2018 |
| EJF Electrical Ltd | Construction | 2021 |
| Electric Eco Ltd | Construction | 2025 |
| Element Jewellery (HB) Ltd | Wholesale & retail | 2020 |
| Elevate Corporate Limited | Health & social care | 2026 |
| Elliview Limited | Administrative & support | 2006 |
| Elloe Consulting Ltd | Professional & scientific | 2013 |
| Elmet Investments | Financial services | 2016 |
| Emsley Holdings Ltd | Financial services | 2024 |
| Emsley Property Investments Ltd | Real estate | 2022 |
| Emsley Property Ltd | Real estate | 2022 |
| Endtoend IT Limited | Information & communication | 2017 |
| Erin Solutions Limited | Professional & scientific | 2013 |
| Evolve Rope Access Ltd | Construction | 2023 |
| Evolving Real Estate Limited | Real estate | 2024 |
| Expertreat Limited | Construction | 1986 |
| Expressions Interiors Limited | Construction | 2016 |
| Exquisite Retail Ltd | Wholesale & retail | 2016 |
| Extenso Ltd | Professional & scientific | 2024 |
| Factorylux Ltd | Extraterritorial | 2015 |
| Fairview Daltongate Management Company Limited | Households | 2020 |
| Fieldwork Design Co. Ltd | Professional & scientific | 2025 |
| Fighting Talk Limited | Other services | 2013 |
| Fish Finger Heaven Limited | Hospitality | 2013 |
| Fitton & Co Accountants Limited | Extraterritorial | 2012 |
| Floorgenix Limited | Construction | 2023 |
| Flovin Property Services Ltd | Professional & scientific | 2017 |
| Fluor Hose Ltd | Manufacturing | 2025 |
| Flying Duck Studio LAB Ltd | Information & communication | 2022 |