| Dhillon Developments Ltd | Hospitality | 2015 |
| Dhoot Transmission ( UK ) Limited | Manufacturing | 2007 |
| DHS Property Maintenance Ltd | Construction | 2024 |
| Dhsf Events Limited | Arts & recreation | 2024 |
| DI Linford Precision Aero Ltd | Other services | 2026 |
| Diadem Global Limited | Real estate | 2026 |
| Diagnostic Developments Ltd | Wholesale & retail | 2020 |
| Dial Yankee Limited | Hospitality | 2005 |
| Diamond Construct Limited | Construction | 2025 |
| Diamond Cosmetics Hull Limited | Other services | 2023 |
| Diamond Expert Cleaning Limited | Administrative & support | 2025 |
| Diamond Haircut Ltd | Other services | 2023 |
| Diamond Hand Car Wash 1 Ltd | Administrative & support | 2025 |
| Diamond Klean Ltd | Administrative & support | 2025 |
| Diamond Life Ltd | Real estate | 2013 |
| Diamond Life Properties LLP | | 2017 |
| Diamond Travel Services Hull Ltd | Transport & logistics | 2021 |
| Diaore Ltd | Professional & scientific | 2024 |
| Dickinson Collective Ltd | Wholesale & retail | 2025 |
| Didan Engineering Ltd | Professional & scientific | 2023 |
| Diesel Power Dogs Ltd | Wholesale & retail | 2025 |
| Different Resonance Limited | Information & communication | 2021 |
| DIG N Dump Ltd | Construction | 2023 |
| Digenics Ltd | Information & communication | 2025 |
| Digi-Soft-Power Ltd | Administrative & support | 2014 |
| Digination Limited | Professional & scientific | 2020 |
| Digistra Ltd | Administrative & support | 2025 |
| Digital Ente Ltd | Wholesale & retail | 2015 |
| Digital Kingston Limited | Information & communication | 2022 |
| Digital Schools Limited | Information & communication | 2026 |
| Digitech Business Equipment Ltd | Administrative & support | 2011 |
| Digitise Creative Limited | Information & communication | 2025 |
| DIL MIL Limited | Other services | 2023 |
| Dilanas Properties Ltd | Real estate | 2025 |
| Diligent Minds Global Limited | Administrative & support | 2025 |
| Dillan Wright Limited | Agriculture & fishing | 2003 |
| Dillon (Hull) Limited | Administrative & support | 1996 |
| Dinca Services Ltd | Transport & logistics | 2025 |
| Dingledean Ltd | Administrative & support | 2022 |
| Dinky Waste Ltd | Water & waste | 2020 |
| Dinostar Limited | Arts & recreation | 2003 |
| Diodable Ltd | Wholesale & retail | 2024 |
| Diony Creative Ltd | Professional & scientific | 2016 |
| Diony Holdings Ltd | Financial services | 2025 |
| Dionysia Limited | Information & communication | 2025 |
| Diplomatic Mission Supplies Limited | Administrative & support | 2009 |
| Direct Decorators Limited | Other services | 2011 |
| Direct Gaskets Limited | Manufacturing | 1993 |
| Direct Movement Limited | Education | 2019 |
| Directive Training Limited | Education | 2016 |
| Dirt Track Riders Association Limited | Arts & recreation | 2012 |
| Dirty Exterior Cleaning Ltd | Construction | 2025 |
| Dirty Hands Construction Ltd | Administrative & support | 2024 |
| Dirty Harry's Ltd | Administrative & support | 2008 |
| Discount Dynamics Group Ltd | Wholesale & retail | 2024 |
| Discount Fireworks (Hull) Limited | Wholesale & retail | 2023 |
| Discount Glass (Hull) Limited | Manufacturing | 2005 |
| Discount Store Hull Ltd | Wholesale & retail | 2023 |
| Discreet Recruitment Ltd | Administrative & support | 2024 |
| Dispit Limited | Water & waste | 1964 |
| Disposables Limited | Wholesale & retail | 2022 |
| Disseminate Media Ltd | Information & communication | 2023 |
| District 14 Events Limited | Administrative & support | 2014 |
| DISTRIKT-6 Limited | Arts & recreation | 2025 |
| Diva's Beauty Studio Ltd | Other services | 2025 |
| Diverse Quality Services Ltd | Professional & scientific | 2017 |
| Divine Commercial Finance Ltd | Financial services | 2020 |
| Divine Fragrance Ltd | Wholesale & retail | 2024 |
| Divine Grace Limited | Real estate | 2024 |
| Divine Hi-Clef Supernatural Records Limited | Information & communication | 2019 |
| Divine Nest Ltd | Real estate | 2026 |
| Divine PR Limited | Professional & scientific | 2013 |
| Dixie Ltd | Wholesale & retail | 2011 |
| Dixon & Co Estates Ltd | Real estate | 2026 |
| Dixon & Cohen Ltd | Real estate | 2025 |
| Dixon Brothers Plumbing & Heating Ltd | Construction | 2018 |
| Dixon Court Management Limited | Households | 1994 |
| Dixon Discount Beds Limited | Wholesale & retail | 2019 |
| Dixon Discount Carpet Tools & Accessories Ltd | Wholesale & retail | 2018 |
| Dixon Discount Carpets Limited | Wholesale & retail | 1987 |
| Dixon Facilities Management Limited | Construction | 2020 |
| Dixon Integrated Services Limited | Construction | 2020 |
| Dixon Properties (Yorkshire) Limited | Construction | 2003 |
| Dixons Cleaning Ltd | Administrative & support | 2026 |
| DJ Mercado Ltd | Health & social care | 2023 |
| DJ Sound Rental Limited | Professional & scientific | 2018 |
| DJ Sportz Limited | Arts & recreation | 2016 |
| Dj-Yusef Limited | Arts & recreation | 2022 |
| DJC Holdings (Yorkshire) Ltd | Financial services | 2024 |
| Djed Services Limited | Public administration | 2025 |
| DJH Properties Limited | Real estate | 2023 |
| DJH Sparclean Ltd | Administrative & support | 2019 |
| DJK Acoustics Ltd. | Administrative & support | 2020 |
| DJL Entertainment Ltd | Hospitality | 2026 |
| DJL Technical Services Ltd | Manufacturing | 2022 |
| DJV Entertainments Ltd | Other services | 2018 |
| DK Access Limited | Construction | 2014 |
| DK Easy Cars Ltd | Wholesale & retail | 2025 |
| DK Group Holdings Ltd | Hospitality | 2025 |
| DK Sculpta Ltd | Health & social care | 2024 |