| Dadiff PVT Ltd | Wholesale & retail | 2025 |
| Dado Group Limited | Real estate | 2026 |
| Dadongbei Ltd | Hospitality | 2013 |
| Dadrian Hairandbeauty Ltd | Other services | 2020 |
| Dadyal Meat Centre Ltd | Wholesale & retail | 2026 |
| Dadyal Travels & Global Services Limited | Administrative & support | 2026 |
| Daero Community Forum Ltd | Health & social care | 2013 |
| Daez Global Ltd | Administrative & support | 2025 |
| DAF Car Ltd | Transport & logistics | 2018 |
| Dafedow Limited | Transport & logistics | 2017 |
| Dafen (Holdings) Limited | Financial services | 2015 |
| Dafen Pharmacy Limited | Wholesale & retail | 1993 |
| Daffodil Fashion Limited | Wholesale & retail | 2025 |
| Daffodil HMO Solutions Ltd | Real estate | 2025 |
| Daffodils Media UK Ltd | Real estate | 2025 |
| Dafilaks Limited | Health & social care | 2014 |
| DAGASH-K9 Security Ltd | Administrative & support | 2024 |
| Daggr, Ltd | Information & communication | 2009 |
| Dagrazia Capital Investments Ltd | Administrative & support | 2024 |
| Dahir IT Solution Ltd | Information & communication | 2015 |
| Dahlia & Rose Ltd | Arts & recreation | 2025 |
| Dahlia Heathlands Ltd | Financial services | 2025 |
| Dahlia Holdings Ltd | Manufacturing | 2026 |
| Dahlia Paris Ltd | Construction | 2024 |
| Dahlia's Event Hire Services Ltd | Other services | 2025 |
| Daia Holdings Ltd | Real estate | 2025 |
| Daie Car Ltd | Wholesale & retail | 2026 |
| Dail Heating Ltd | Construction | 2020 |
| Daily Care and Cleaning Ltd | Administrative & support | 2024 |
| Daily Delicious Ltd | Hospitality | 2018 |
| Daily Essentials Corner Ltd | Wholesale & retail | 2024 |
| Daily Furniture Limited | Wholesale & retail | 2011 |
| Daily Green Ltd | Wholesale & retail | 2022 |
| Daily Mini Market 1 Ltd | Wholesale & retail | 2025 |
| Daily Nails Ltd | Other services | 2025 |
| Daily Needs Supermarket Ltd | Wholesale & retail | 2025 |
| Daily Offers Limited | Wholesale & retail | 2023 |
| Daily Optics Ltd | Wholesale & retail | 2015 |
| Daily Services Ltd | Transport & logistics | 2025 |
| Daily Support Services Ltd | Wholesale & retail | 2025 |
| Daily Taste Ltd | Wholesale & retail | 2026 |
| Daily Tuesday Ltd | Information & communication | 2020 |
| Daily UK Limited | Wholesale & retail | 2023 |
| Daily Value Limited | Wholesale & retail | 2026 |
| Daily VEG Ltd | Wholesale & retail | 2023 |
| Daily-Sense Cleaning Limited | Administrative & support | 2022 |
| Dailydose Cafe Ltd | Hospitality | 2023 |
| Dailygem Store Ltd | Wholesale & retail | 2025 |
| Daimani UK Ltd | Administrative & support | 2022 |
| Dainon UK Ltd | Wholesale & retail | 2026 |
| Dains Accountants Limited | Professional & scientific | 2021 |
| Dains Audit Limited | Professional & scientific | 2021 |
| Dains LLP | | 2007 |
| Dains Probate Limited | Professional & scientific | 2023 |
| Dains Trustees Ltd | Extraterritorial | 2010 |
| Dainty International Ltd | Hospitality | 2025 |
| Dainty Little Hands Limited | Health & social care | 2017 |
| Daira Mame Maodo Malick SY Birmingham CIC | Health & social care | 2026 |
| Dairy Farm Products Limited | Wholesale & retail | 2013 |
| Dairy Pipe Lines Limited | Administrative & support | 2007 |
| Dairyfresh Ltd | Wholesale & retail | 2012 |
| Dairyglen House RTM Company Limited | Households | 2014 |
| Dairyking Birmingham Ltd | Wholesale & retail | 2020 |
| Daisy Bennett Holdings Limited | Financial services | 2025 |
| Daisy Clothing Ltd | Wholesale & retail | 2022 |
| Daisy Investment Properties Limited | Real estate | 2017 |
| Daisy Pettinger Limited | Other services | 2014 |
| Daisy Philip Limited | Wholesale & retail | 2024 |
| Daisy-Bell Care Limited | Public administration | 2020 |
| Daisyboo’S Diner Limited | Hospitality | 2021 |
| Daiva’S Cleaning Ltd | Administrative & support | 2024 |
| Daizy's Leisure Time Ltd | Administrative & support | 2017 |
| Daizy’S Party Hire Ltd | Administrative & support | 2018 |
| Daji Holding Co Ltd | Financial services | 2025 |
| Dajo Properties Limited | Real estate | 2018 |
| DAK Construction U.K. Limited | | 1985 |
| Daka Builders Ltd | Construction | 2019 |
| Dakam Cafe Limited | Hospitality | 2020 |
| Dakhla Limited | Hospitality | 2023 |
| Dakiya Limited | Wholesale & retail | 2020 |
| Dakkar Group LP | | 2017 |
| Dakkar LP | | 2017 |
| Daklapack UK Ltd | Manufacturing | 2026 |
| Dakota Homes Limited | Real estate | 1997 |
| Dakota Management Company Limited | Real estate | 2000 |
| Dalalia Capital Ltd | Wholesale & retail | 2021 |
| Dalalia Ltd | Wholesale & retail | 2019 |
| Dalam Ltd | Real estate | 2025 |
| Dalap Consulting Limited | Professional & scientific | 2016 |
| Dalary Estate Ltd | Information & communication | 2024 |
| Dale Elliott Consultancy Ltd | Professional & scientific | 2025 |
| Dale END Foods Limited | Hospitality | 2024 |
| Dale END II Ltd | Hospitality | 2019 |
| Dale END Ltd | Real estate | 2018 |
| Dale Luxe Lettings Ltd | Hospitality | 2024 |
| Dale Property Group Limited | Real estate | 2024 |
| Dalefield Catering Limited | Hospitality | 2024 |
| Dalehairdressing Limited | Other services | 2011 |
| Dalehouse Farm Limited | Agriculture & fishing | 1985 |
| Dalen Design Concepts Limited | Manufacturing | 2016 |