| Daveys Bodyshop Ltd | Wholesale & retail | 2016 |
| David and Theo Ltd | Health & social care | 2021 |
| David Bartram Furniture Limited | Manufacturing | 2024 |
| David Brandish Limited | Administrative & support | 2011 |
| David Broadway EYE Care Services Limited | Health & social care | 2010 |
| David Bullen Limited | Professional & scientific | 2003 |
| David Clarke & Associates Building Design Consultants Limited | Professional & scientific | 1978 |
| David COE Goldsmiths Limited | Manufacturing | 2011 |
| David Drake Limited | Professional & scientific | 2015 |
| David Flynn Films Ltd | Professional & scientific | 2022 |
| David France Limited | Construction | 2012 |
| David Futter Associates Limited | Professional & scientific | 1992 |
| David G Willis Ltd | Professional & scientific | 2020 |
| David Houchell Limited | Professional & scientific | 2003 |
| David Hughes Rural Business Solutions Limited | Financial services | 2012 |
| David J Cheese Ltd | Professional & scientific | 2007 |
| David James Motoring Group Ltd | Wholesale & retail | 2019 |
| David Johns Quantity Surveying Services Ltd | Construction | 2014 |
| David L L Lewis Ltd | Professional & scientific | 2025 |
| David Langridge | | 1999 |
| David Lincoln Limited | Real estate | 2002 |
| David Loads (Farms) Limited | Agriculture & fishing | 1973 |
| David Mcclure Limited | Manufacturing | 1949 |
| David Meddick & Co | | 1996 |
| David Meddick & Co Limited | Real estate | 1999 |
| David Nicholl Associates Ltd | Professional & scientific | 2012 |
| David Phillip (Investments) Limited | Construction | 1975 |
| David Pointer SCS Limited | Other services | 2000 |
| David Thomas Property Limited | Real estate | 2009 |
| David Townend & Company Limited | Professional & scientific | 1994 |
| David Whiskerd Builders Limited | Construction | 2013 |
| David Yarham (Salvage) Limited | Wholesale & retail | 2008 |
| David Young Consultancy Ltd | Professional & scientific | 2010 |
| Davidson Gardens Management Company Limited | Households | 2016 |
| Davies Builders Limited | Construction | 2009 |
| Davinci Medical & Surgical Limited | Health & social care | 2020 |
| Davis Holdings Limited | Professional & scientific | 2009 |
| Davisco Limited | Administrative & support | 2009 |
| Dawcet Ltd | Construction | 2008 |
| Dawn's New Horizon Ltd | Information & communication | 2012 |
| Dawnrate Limited | Financial services | 2019 |
| Dawson Brown Ltd | Construction | 2013 |
| Dawson Taylor Estates Limited | Real estate | 2023 |
| Dawsons Carpentry Ltd | Construction | 2022 |
| Dawsonsfba Ltd | Wholesale & retail | 2026 |
| Day December Limited | Transport & logistics | 2019 |
| Day One Property Limited | Construction | 2019 |
| Dayal Hotels Ltd | Hospitality | 2019 |
| Dayspring Estates Limited | Real estate | 2021 |
| Dayyan Health Consultants Limited | Health & social care | 2014 |
| Daze Accounting Limited | Professional & scientific | 2024 |
| Dazmonda Holdings Limited | Real estate | 2013 |
| Dazmonda Limited | Hospitality | 2010 |
| DB Accounting Solutions Limited | Professional & scientific | 2019 |
| DB Electrical Inc Ltd | Construction | 2012 |
| DB Event Holdings Ltd | Financial services | 2025 |
| DB Property Solutions (Norfolk) Limited | Construction | 2019 |
| DB Sales and Distribution Limited | Wholesale & retail | 2020 |
| DBF Electrical Services Ltd | Construction | 2021 |
| DBI Estates Ltd | Households | 2020 |
| DBL Developments Ltd | Real estate | 2023 |
| DC & CD Bean Ltd | Real estate | 2022 |
| DC & CJ Jones Ltd. | Administrative & support | 2019 |
| DC Body Art Limited | Wholesale & retail | 2011 |
| DC Brooks Trading Limited | Hospitality | 2022 |
| DC Consolidated Ltd. | Construction | 2024 |
| DC Engineering (East Anglia) Limited | Manufacturing | 2009 |
| DC Jones Catering Ltd | Hospitality | 2023 |
| DC Metrology Limited | Professional & scientific | 2026 |
| DC Professional Driving Ltd | Transport & logistics | 2024 |
| DC Property Holdings (Norfolk) Ltd | Real estate | 2021 |
| DC Railtech Ltd | Professional & scientific | 2016 |
| DC Realty Ltd | Construction | 2024 |
| DC Roofing & Roofline Ltd | Construction | 2022 |
| Dc&K Development Ltd | Construction | 2026 |
| DC01 RS Limited | Professional & scientific | 2024 |
| DCA Building Design Consultants Limited | Professional & scientific | 2005 |
| DCB Bars Ltd | Hospitality | 2026 |
| DCB Limited | Wholesale & retail | 2015 |
| DCC Kennels Ltd | Hospitality | 2021 |
| Dccs Aviation Services Ltd | Manufacturing | 2008 |
| DCE Consultancy Ltd | Health & social care | 2026 |
| DCF Support Ltd | Administrative & support | 2021 |
| DCI Norfolk Ltd | Hospitality | 2024 |
| DCL Howe Properties Ltd | Real estate | 2020 |
| Dcoggins Transport Limited | Transport & logistics | 2015 |
| Dcpnet Ltd | Information & communication | 2024 |
| DCR Anglia Limited | Real estate | 2025 |
| DCS Electrical Solutions Ltd | Construction | 2019 |
| DCS Engineering Limited | Professional & scientific | 2007 |
| DCS Securities Ltd | Real estate | 2017 |
| Dcuk Technologies Ltd | Professional & scientific | 2025 |
| DCW Associates Limited | Health & social care | 2017 |
| DCW Hygiene Ltd | Health & social care | 2019 |
| DCW Inspections Ltd | Construction | 2024 |
| DD Physiotherapy Ltd | Other services | 2025 |
| DD Projects Limited | Construction | 2013 |
| DDA Management & Services Ltd | Administrative & support | 2024 |
| DDB Lighting Ltd | Other services | 2019 |
| Ddcl Limited | Real estate | 2020 |