| Dealer’S Hand Ltd | London | 2020 |
| Dealflowx Ltd | Bristol | 2022 |
| Deals Gallery Ltd | Sidcup | 2022 |
| Deals on Wheels Limited | York | 1991 |
| Dealston Holdings Limited | Newton Mearns | 2003 |
| Dealston Homes Limited | Newton Mearns | 2003 |
| Dealvora Exchivo Trading Ltd | Manchester | 2026 |
| Dean & Isabella Stonehouse Ltd | Edinburgh | 2012 |
| Dean & Tyler Co., Ltd | Beckenham | 2016 |
| Dean Concrete & Pumping Ltd | Hereford | 2025 |
| Dean Court Hotel Ltd | Newcastle Upon Tyne | 2014 |
| Dean Flecknell Roofing Limited | Luton | 2021 |
| Dean Fraser & Sons Ltd | Shoreham-By-Sea | 2013 |
| Dean Halal Foods Limited | Lancaster | 2008 |
| Dean Hamshaw Ltd | Barnsley | 2022 |
| Dean Lount Limited | Bridlington | 2022 |
| Dean Morrison Limited | Cardiff | 2019 |
| Dean Plasterers Limited | Ringwood | 2014 |
| Dean Recruitment Limited | London | 2022 |
| Dean River Asset Management Limited | Edinburgh | 2000 |
| Dean Skivington Limited | Swanage | 2024 |
| Dean Stevenson Engineering Limited | Taunton | 2015 |
| Dean's Used Cars Limited | Romford | 2005 |
| Deane Veterinary Centre Limited | Bristol | 2003 |
| Deangate Properties Limited | London | 1996 |
| Deankirk Limited | Bridgend | 2025 |
| Deanprint 2023 Limited | Stockport | 2023 |
| Deans Blinds Limited | London | 2001 |
| Deans Foods Limited | Staines-Upon-Thames | 1991 |
| Deans Modular Buildings Limited | Glasgow | 2017 |
| Deans Place Hotel Limited | Worthing | 1997 |
| Deansgate Lane Management Company Limited | Swindon | 2009 |
| Deansgate Law Limited | Liverpool | 2015 |
| Deanside Transit Limited | Glasgow | 1974 |
| Deappleby Limited | Chelmsford | 2020 |
| Dear Susan Ltd | Margate | 2015 |
| Deards Property Holdings Ltd | Knebworth | 2021 |
| Dearham Grove 1969 Limited | Cramlington | 2013 |
| Dearne Street 1964 Limited | Barnsley | 2013 |
| Dearne Valley Assets (NO 2) Limited | Manchester | 2005 |
| Dearne Valley Assets Limited | Manchester | 2005 |
| Dearne Valley Engineering Limited | Oldham | 2009 |
| DEB Secretaries Limited | Carlton Barnsley | 2005 |
| Debao Limited | Cambridge | 2023 |
| DEBB1E Limited | Harrogate | 2020 |
| Debbage & Tubby Limited | Norwich | 2008 |
| Debbie Properties Limited | London | 2018 |
| Debeaufort Construction Ltd | Bristol | 2011 |
| Debeere Court Limited | Belfast | 1987 |
| Deben Property Maintenance Services Ltd | Corby | 2016 |
| Debley Solutions Limited | Bracknell | 2014 |
| Deboard Limited | Nottingham | 2018 |
| Deborah Alicia Simmons Ltd | Lewisham | 2025 |
| Deborah Anne Brittain Limited | Bridgend | 2024 |
| Deborah Anne Garrod Limited | Southsea | 2023 |
| Deborah Caroline Hanna Ltd | Coventry | 2022 |
| Deborah Hart Limited | Lincoln | 2025 |
| Deborah Jane Humphreys Ltd | Doncaster | 2024 |
| Deborah Jane Stewart Limited | Ruislip | 2022 |
| Deborah Julie Sampson Ltd | Woodford Green | 2022 |
| Deborah Lorraine Gordon Ltd | Birmingham | 2023 |
| Deborah Nadine Pethick Ltd | Camborne | 2026 |
| Deborn Co., Ltd | London | 2012 |
| Debra Jane Codling Limited | Cowes | 2023 |
| Debra Jane DA Piedade Limited | Cowes | 2023 |
| Debra Jane Limited | Cowes | 2023 |
| Debra Jane Thacker Unlimited | Chesterfield | 2025 |
| Debra Joyce Hunt Limited | Fareham | 2023 |
| Debra Joyce Maton Limited | Fareham | 2023 |
| Debra Moore Associates Limited | Scarborough | 2008 |
| Debren Ltd | Coventry | 2018 |
| Debrett's Prestige Limited | London | 2012 |
| Debrett's Wealth Limited | London | 2010 |
| Debretts Consultancy Limited | London | 2008 |
| Debruin Court RTM Company Limited | Stanmore | 2015 |
| Debson Consultants Limited | Barnet | 1993 |
| Debt Claim Services Limited | Cleethorpes | 2012 |
| Debt Collection 247 Ltd | Chesterfield | 2005 |
| Debt Explained Ltd | London | 2007 |
| Debt Guard Limited | Sheffield | 2003 |
| Debt in Control Limited | Salford | 2006 |
| Debt Line Limited | Peterborough | 2019 |
| Debt Recovery Services Limited | Sheffield | 2002 |
| Debt Remedy Limited | Leeds | 2011 |
| Debtonthenet Limited | | 2005 |
| Debtoy Limited | Stowmarket | 2013 |
| Debug Limited | Henley-On-Thames | 2002 |
| Decaff Limited | Beckenham | 2015 |
| Decal Additives Ltd | Consett | 2013 |
| Decap Studios Ltd | London | 2025 |
| Decca Limited | Reading | 1929 |
| Decco Construction Supplies Ltd | Newbury | 2007 |
| December Ltd | Newmarket | 2022 |
| Dechev Ltd | London | 2018 |
| Decho (London) International Corporation Ltd | Beckenham | 2014 |
| Decibel Systems Ltd | Southampton | 2006 |
| Decibel Training Limited | Chelmsford | 2010 |
| Decimals Count Ltd | Barnsley | 2011 |
| Decision Profile Limited | Alcester | 2015 |
| Decisionsoft Limited | Oxford | 2009 |