| Danko Imperial Holdings Limited | Real estate | 2025 |
| Danmur Limited | Financial services | 2022 |
| Danny Diner Limited | Hospitality | 2022 |
| Danny Fresh Fruit and VEG Ltd | Wholesale & retail | 2025 |
| Danny LIU & Co Ltd | Wholesale & retail | 2026 |
| Danny Pearce Leisure Ltd | Hospitality | 2007 |
| Danny Sangra Limited | Arts & recreation | 2012 |
| Danny Sherwood Solutions Ltd | Professional & scientific | 2024 |
| Danny's Booze Hillsborough Limited | Wholesale & retail | 2024 |
| Danny's Booze Woodseats Limited | Wholesale & retail | 2024 |
| Danny's Scissorcut Ltd | Other services | 2023 |
| Danny’S Fast Food Limited | Hospitality | 2025 |
| Danroy Limited | Wholesale & retail | 2019 |
| Dans Blinds & Shutters Ltd | Wholesale & retail | 2024 |
| Dansack Developments Limited | Professional & scientific | 2007 |
| Dantastic Productions Ltd | Arts & recreation | 2015 |
| Dantechnology Resources Limited | Information & communication | 2025 |
| Danu Water Ltd | Manufacturing | 2025 |
| DAO Investments Ltd | Real estate | 2014 |
| Daporsheff Limited | Hospitality | 2022 |
| Dapper Chaps Limited | Other services | 2007 |
| Dapper DAN Limited | Wholesale & retail | 2011 |
| DAR Asel Ltd | Manufacturing | 2026 |
| DAR DAR Enterprises Ltd | Mining & quarrying | 2023 |
| DAR M&G Realisations Limited | Construction | 1984 |
| DAR UL Madinah Sheffield Ltd | Education | 2022 |
| Darbies Taps and Bathrooms Limited | Wholesale & retail | 2019 |
| Darby & Fletcher Estates Limited | Real estate | 2015 |
| Darcliffe Consulting Limited | Construction | 2016 |
| Darder-Kirkwood Ltd | Health & social care | 2024 |
| Dare Investments Limited | Professional & scientific | 2014 |
| Dare to Dream Big Ltd | Wholesale & retail | 2018 |
| Darenthmjs Limited | Manufacturing | 2000 |
| Daresys Consultancy Limited | Information & communication | 2004 |
| Darey Products Limited | Administrative & support | 2004 |
| Darinox Ltd | Wholesale & retail | 2025 |
| Dario Lario Ltd | Wholesale & retail | 2025 |
| Daris Restaurant Limited | Hospitality | 2017 |
| Darius Properties Limited | Real estate | 2024 |
| Dariwoo Ltd | Wholesale & retail | 2025 |
| Dark Designs Lighting Limited | Arts & recreation | 2014 |
| Dark Kitchen Group Ltd | Hospitality | 2025 |
| Dark Peak Analytics Ltd | Professional & scientific | 2020 |
| Dark Peak Fell Runners | Arts & recreation | 2013 |
| Dark Peak Productions Limited | Wholesale & retail | 2003 |
| Dark Tech Solutions Limited | Wholesale & retail | 2024 |
| Darko Premier Limited | Wholesale & retail | 2017 |
| Darko-M Analytics Ltd | Administrative & support | 2023 |
| Darkstar Hobbies Limited | Wholesale & retail | 2022 |
| Darkwater Tactical Ltd | Wholesale & retail | 2021 |
| Darla Jade Limited | Information & communication | 2026 |
| Darley Abbey Properties Ltd | Real estate | 2025 |
| Darley Abbey Wines Limited | Wholesale & retail | 2017 |
| Darlin Limited | Information & communication | 2018 |
| Darlton Property Management Limited | Real estate | 2019 |
| Darnal Minimarket Ltd | Wholesale & retail | 2023 |
| Darnall Charcoal Grill 4RE Ltd | Hospitality | 2025 |
| Darnall Charcoal Grill Ltd | Hospitality | 2022 |
| Darnall Dementia Trust | Health & social care | 2012 |
| Darnall Education & Sports Academy C.I.C. | Education | 2021 |
| Darnall Express Limited | Wholesale & retail | 2025 |
| Darnall FA Limited | Arts & recreation | 2015 |
| Darnall Fisheries Limited | Hospitality | 2025 |
| Darnall Grocery Store Limited | Wholesale & retail | 2024 |
| Darnall Health Limited | Health & social care | 2012 |
| Darnall Ltd | Manufacturing | 2024 |
| Darnall News Ltd | Wholesale & retail | 2025 |
| Darnall OFF License Food Store Limited | Wholesale & retail | 2025 |
| Darnall Pharm Ltd | Health & social care | 2024 |
| Darnall Rental Limited | Real estate | 2025 |
| Darnall Sales Limited | Professional & scientific | 1998 |
| Darnall Supplies Ltd | Wholesale & retail | 2020 |
| Darnall Tools & Abrasives Limited | Wholesale & retail | 1981 |
| Darnall Unity Hub Limited | Real estate | 2024 |
| Darnall Waste Care Ltd | Administrative & support | 2013 |
| Darnall Well Being | Health & social care | 2000 |
| Darnallfood Limited | Hospitality | 2023 |
| Darpol Logistics Ltd | Manufacturing | 2018 |
| Darren Austin Driving Services Limited | Transport & logistics | 2007 |
| Darren Keith Hoyland Ltd | Construction | 2014 |
| Darren Seed Ltd | Transport & logistics | 2014 |
| Darren Westwood Joinery & Building Services Limited | Construction | 2017 |
| Dart (S10) Ltd | Wholesale & retail | 2016 |
| Darwill Fabrications Ltd | Manufacturing | 2012 |
| Darwin House Limited | Health & social care | 1988 |
| Darwin Technology Solutions Ltd | Information & communication | 2022 |
| Dary-Seb Logistics Ltd | Transport & logistics | 2022 |
| DAS L Rail Limited | Construction | 2013 |
| Dasgupta Properties Limited | Households | 2022 |
| Dash Logistics Solutions Limited | Transport & logistics | 2024 |
| Dash Tech Ltd | Information & communication | 2024 |
| Dash the Henge Limited | Information & communication | 2021 |
| Dashcart Ltd | Wholesale & retail | 2025 |
| Dashu Catering Limited | Hospitality | 2021 |
| Dashwood Design Ltd | Extraterritorial | 2021 |
| Dasi Food Ltd | Hospitality | 2025 |
| Dast Limited | Financial services | 2025 |
| Data a and E Ltd | Information & communication | 2009 |
| Data Dynamics Ltd | Information & communication | 2023 |
| Data Equation Limited | Information & communication | 2004 |