| Damico Global Limited | Hospitality | 2025 |
| Damina PVT Ltd | Hospitality | 2024 |
| Damofa Limited | Extraterritorial | 2021 |
| Dampfix Home Paint Ltd | Professional & scientific | 2024 |
| Dampsafe Limited | Administrative & support | 2025 |
| Damsel Hair-Health Ltd | Other services | 2025 |
| DAN Evans IT Limited | Information & communication | 2014 |
| DAN Sullivan Holdings Ltd | Real estate | 2025 |
| DAN Tucker Consultancy Limited | Professional & scientific | 2010 |
| DAN Winterland Aviation Limited | Information & communication | 2014 |
| Dan-Ai-Mate Ltd | Information & communication | 2025 |
| Dana Payne Limited | Health & social care | 2007 |
| Dance Crazy Limited | Arts & recreation | 2005 |
| Dancing JUG Bournemouth Limited | Hospitality | 2021 |
| Danebury Electric Limited | Manufacturing | 1953 |
| Danehurst (Bournemouth) Limited | Households | 2004 |
| Danescourt (Bournemouth) Limited | Households | 1972 |
| Danescroft Freehold Limited | Households | 2015 |
| Dani Autos Ltd | Wholesale & retail | 2025 |
| Dani Dixon Design Ltd | Professional & scientific | 2022 |
| Daniel Butler Creative Ltd | Extraterritorial | 2020 |
| Daniel Christopher Biggs Business Analysis Limited | Information & communication | 2013 |
| Daniel G Plant Ltd | Construction | 2016 |
| Daniel Hall Carpentry Limited | Construction | 2023 |
| Daniel Palmer Limited | Wholesale & retail | 2013 |
| Daniela Luquini Limited | Information & communication | 2024 |
| Danjam Developments Limited | Real estate | 2021 |
| Danlinked Ltd | Transport & logistics | 2026 |
| Dannan Marine Solutions Limited | Professional & scientific | 2022 |
| Danny ROM Ltd | Transport & logistics | 2020 |
| Dans Multi Services Limited | Transport & logistics | 2025 |
| Dansie Court Management Company Limited | Households | 2002 |
| Danuba River Limited | Wholesale & retail | 2018 |
| Dany Expres Ltd | Transport & logistics | 2019 |
| Dany's Stew House Ltd | Hospitality | 2019 |
| Dara 77 Ltd | Health & social care | 2016 |
| Darcy Rose Limited | Wholesale & retail | 2023 |
| Darcys Bar Ltd | Hospitality | 2018 |
| Dare's Cleaning Services Ltd | Administrative & support | 2025 |
| Darelle Consulting Ltd | Information & communication | 2025 |
| Darfox Ltd | Wholesale & retail | 2021 |
| Dark Nebulae Ltd | Information & communication | 2008 |
| Dark Power Ltd | Professional & scientific | 2020 |
| Dark Spark Fabrications Ltd | Manufacturing | 2021 |
| Darkness Falls Limited | Information & communication | 2026 |
| Darlington Developments Limited | Real estate | 2025 |
| Darohofner Limited | Wholesale & retail | 2024 |
| Darracott Road Managament Company Limited | Real estate | 2015 |
| Darren Crain Ltd | Professional & scientific | 2024 |
| Dartnall Decor Ltd | Construction | 2024 |
| Darwin Financial Services Ltd | Financial services | 2018 |
| Darzit Business Consulting Ltd | Information & communication | 2017 |
| DAS Auto Investments Limited | Financial services | 2010 |
| DAS Events Ltd | Wholesale & retail | 2019 |
| Data Alchemist Limited | Information & communication | 2008 |
| Data Telecoms (Southern) Ltd | Information & communication | 2014 |
| Datacon Limited | Administrative & support | 1997 |
| Datai Consultants Ltd | Professional & scientific | 2019 |
| Datalink Guru Ltd | Information & communication | 2018 |
| Datatac Ltd | Information & communication | 2020 |
| Datawrkz Operations UK Ltd | Professional & scientific | 2024 |
| Datawrkz UK Ltd | Professional & scientific | 2024 |
| Dating.One Ltd | Information & communication | 2024 |
| Dauncey Electrical Contractors Limited | Construction | 2017 |
| Dave Burns Car Sales Ltd | Wholesale & retail | 2018 |
| Dave Burns Lettings & Developments Ltd | Real estate | 2017 |
| Dave Marine Ltd | Manufacturing | 2023 |
| Dave Mott Enterprises Limited | Professional & scientific | 2019 |
| Dave Sanger Tennis Coaching Ltd | Arts & recreation | 2012 |
| Dave's Appliances Ltd | Wholesale & retail | 2010 |
| Daver Corporation Limited | Professional & scientific | 2009 |
| Davey Couriers Limited | Transport & logistics | 2025 |
| Davi's Removals Ltd | Transport & logistics | 2026 |
| David a Lindon Micro Artist Ltd | Arts & recreation | 2021 |
| David Byrne Ltd | Health & social care | 2026 |
| David Coupe Hartley Sipp Ltd | Real estate | 2005 |
| David Mainstone Associates Limited | Information & communication | 2010 |
| David Mcdonald Consulting Limited | Professional & scientific | 2019 |
| David Ousey Estate Agents Limited | Real estate | 2013 |
| David Thomas Yachts Limited | Administrative & support | 1977 |
| David's GRP Services Ltd | Other services | 2024 |
| Davids of Wimborne Limited | Construction | 2001 |
| David’S Auto Mechanical Services Ltd | Wholesale & retail | 2022 |
| Davinder Gill Ltd | Administrative & support | 2017 |
| Davino Catering Ltd | Hospitality | 2025 |
| Davis Design Ltd | Information & communication | 2019 |
| Davison Electrical Limited | Construction | 2002 |
| Dawile Consulting Limited | Information & communication | 2008 |
| Dawk Ltd | Manufacturing | 2023 |
| Dawn Dorset Limited | Hospitality | 2022 |
| Daws Foods Ltd | Hospitality | 2026 |
| Dawsons AV LLP | | 2006 |
| Dawsons Radio Limited | Wholesale & retail | 1961 |
| Days Transfer Ltd | Transport & logistics | 2026 |
| Dayse Alexandrino DE Sales Ltd | Health & social care | 2016 |
| Daysh Property Group Ltd | Real estate | 2022 |
| Daystar Property Groups Limited | Real estate | 2021 |
| Daytona International Ltd | Information & communication | 2025 |
| DB Mask Ltd | Wholesale & retail | 2020 |
| DB Media (UK) Limited | Professional & scientific | 2013 |