| Downside Supermarket | Dunstable | A rating |
| Downton Group Ltd | Bracknell | A rating |
| Downtown Kitchen Limited | London | A rating |
| DOWNUNDER GEOSOLUTIONS (LONDON) PTY LIMITED | London | A rating |
| DOWNWOOD HOLIDAYS LTD | Dorset | A rating |
| Dowson Food Machinery | Keighley | A rating |
| Doxa Partners LLP | London | A rating |
| DOXABETA LIMITED | London | A rating |
| Doyle Clayton Solicitors Limited | London | A rating |
| Doyle London Hotels Limited | London | A rating |
| Doyuk & Co Legal Consultancy Ltd | London | A rating |
| Dozen Donuts Ltd | Nottingham | A rating |
| DOZO EATERY LIMITED | ESSEX | A rating |
| Dozywave Ltd | London | A rating |
| DOZZANG LTD | London | A rating |
| DP & K Rhodes Limited T/A Hordle Pharmacy | Lymington | A rating |
| DP Capital Ltd | London | A rating |
| DP Care Group Ltd | High Wycombe | A rating |
| DP Dumfries Limited TA Domino's Pizza | Dumfries | A rating |
| DP INTERNATIONAL (UK) LTD | London | A rating |
| DP Morgan | Driffield | A rating |
| DP Network Limited | Redditch | A rating |
| DP Peterborough Limited | Camberley | A rating |
| DP SUPERMARKETS LIMITED | ARMAGH | A rating |
| DP Trading (UK) Limited | Bedmond | A rating |
| DP'S LOCAL | LEEDS | A rating |
| DP9 Limited | London | A rating |
| dpa lighting consultants | Deddington | A rating |
| DPA TRADING (UK) LIMITED | GREATER MANCHESTER | A rating |
| DPB Ltd | Barking | A rating |
| DPD BUILDERS LTD | LONDON | A rating |
| DPD FALCON LTD | Manchester | A rating |
| DPDgroup UK Ltd | Smethwick | A rating |
| DPI - Democratic Progress Institute | London | A rating |
| DPK CONTRACTORS LIMITED | Middlesex | A rating |
| DPK Foods Limited | Camberley | A rating |
| DPKBV LTD | GREAT YARMOUTH | A rating |
| DPL International Ltd | Cookstown | A rating |
| DPPS TRADING LIMITED | Harrow | A rating |
| DPR Housing Limited | Harrow | A rating |
| DPR Wholesalers Limited | Enfield | A rating |
| DPRACHI RESOURCES LIMITED | Gloucester | A rating |
| DPRS Liverpool Limited TA Domino's Pizza | Liverpool | A rating |
| DPRS North Limited TA Domino's Pizza | Doncaster | A rating |
| DPRS Scots Limited T/A Domino's Pizza | Dartford | A rating |
| DPRV LTD | Liverpool | A rating |
| DPS Embroidery Ltd | Birmingham | A rating |
| DPS Games Ltd | Guildford | A rating |
| DPS Graphics Ltd. | Slough | A rating |
| DPS Group LTD | Glenrothes | A rating |
| DPSK Limited | Egham | A rating |
| DPSS Cabling Services Limited | London | A rating |
| DPT RETAILERS LTD T/A LONDIS | Leicester | A rating |
| DPV-UK LTD | Soham | A rating |
| DPW Contracts Logistics UK Limited | Hinckley | A rating |
| DQS UK Ltd | Hounslow | A rating |
| Dr A C Milner Anlaby Surgery | Hull | A rating |
| Dr A H Ghauri & Dr S Ghauri T/A Ghauri Dental Centres | Hounslow | A rating |
| Dr A Mykoniatis T/A HORLEY & GATWICK DENTAL CENTRE | HORLEY | A rating |
| Dr A Robinson | Chorley | A rating |
| Dr A Sinha & Partners | Stourbridge | A rating |
| Dr A Vardhan Practice | Astley | A rating |
| Dr A.M.Tabrizi Dental Practice Limited | IPSWICH | A rating |
| Dr Abbot Health Care LTD. | Dudley | A rating |
| Dr Abid Hussain - Pearl Medical Centre | Birmingham | A rating |
| Dr Al-Kaisy & Dr Islam Practice | Dagenham | A rating |
| DR Alia Faki trading as AF Dental Hackney | London | A rating |
| Dr Altaf Hussain | Huddersfield | A rating |
| Dr AMBEDKAR MEMORIAL COMMITTEE OF GREAT BRITIAN | WOLVERHAMPTON | A rating |
| Dr Amin Badr El Din | North Church | A rating |
| Dr Andre Buthe Equine Clinic Ltd | Marlborough | A rating |
| Dr Aparna Oncology Limited | Stoke On Trent | A rating |
| Dr B D McNeil & Partners | Whitland | A rating |
| Dr B Sanghera t/a Green Tree Dental | Peterborough | A rating |
| Dr Bano & Partner | Coventry | A rating |
| Dr Barnfield & Partners | Southampton | A rating |
| Dr Beckett and Partners | Kettering | A rating |
| Dr Berni | Liverpool | A rating |
| Dr Bhalla & Partners | Birmingham | A rating |
| Dr Bouch & Partners | Lowestoft | A rating |
| Dr Brown & Partner | Middlesbrough | A rating |
| Dr Buckley and Dr Fazil | Grimsby | A rating |
| Dr C Deaney t/a Marsh Medical Practice | LOUTH | A rating |
| Dr C M Wilson & Partners | Preston | A rating |
| Dr C.J. Shimmins & Partners | Dartford | A rating |
| Dr Carmel Morris and Partners, Heald Green Health Centre 2 | Cheadle | A rating |
| Dr Castle & Partners | Bungay | A rating |
| Dr Challoner's Grammar School | Amersham | A rating |
| Dr Challoner's High School | Little Chalfont | A rating |
| DR CHARLIE EASMON LIMITED | Milton Keynes | A rating |
| Dr Craig Needs T/A Over Surgery | Cambridge | A rating |
| Dr Curran and Partners | Clapham | A rating |
| DR CV GROUP LIMITED | London | A rating |
| Dr D Bensusan & Partners | Swansea | A rating |
| Dr David Bessant Ltd | Harrow | A rating |
| Dr Delair Khider T/A The Warren Practice | Middlesex | A rating |
| Dr Dynamics Limited | Reading | A rating |
| Dr Eline Pedersen Ltd t/a Aberdeen Chiropractic Clinic | Aberdeen | A rating |
| Dr Farrukh Shamshad and Dr Saima Qurban | Essex | A rating |
| Dr Finlay's Private Practice | Birmingham | A rating |
| Dr Foot LTD | Birmingham | A rating |
| DR GILKAR AND PARTNER | BRADFORD | A rating |
| DR HAMMER LTD | London | A rating |
| Dr Harris & Partners | Glasgow | A rating |
| Dr Holden and Partners | Matlock | A rating |
| Dr Holloway & Partners T/as Macklin Street Surgery | Derby | A rating |
| Dr I Ismail & Partners | Marston Moretaine | A rating |
| Dr J & Colleagues | Lincoln | A rating |
| Dr J L Henderson and Partners | Leighton Buzzard | A rating |
| Dr J Price & Partners | Southsea | A rating |
| Dr Jackson Limited | Bristol | A rating |
| Dr Jean Raymond Ltd | Colchester | A rating |
| Dr Jefferies & Partners | Fulham | A rating |
| Dr JJ Wijeratne & Partners (General Practice) | Harrow | A rating |
| DR JOHNSON DEVELOPMENTS LTD | London | A rating |
| Dr Johnston & Partners (Hoad Medical Practice) | Ulverston | A rating |
| Dr Julian Medical Group Ltd | Kent | A rating |
| Dr Kardaras Care Limited | Brighton | A rating |
| Dr Kedward and Partners | Bedford | A rating |
| DR KEMAL TUNC TIRYAKI LIMITED | London | A rating |
| Dr Kerry Sissins Chiropractor Limited | Banbury | A rating |
| Dr Keval Shah T/A V K Patel and Associates | london | A rating |
| Dr Khalid and Partners | Corby | A rating |
| Dr Khokher & Partners | Bedford | A rating |
| Dr Khuroo's practice T/A STOCKLAND GREEN SURGERY | Birmingham | A rating |
| Dr Kunal Sahni T/A Park Lane Dental Practice | Telford | A rating |
| Dr Kuti and Partners | Harlow | A rating |
| Dr L Cornwall & Partners | Banbury | A rating |
| Dr Lloyd and Partners | Eastleigh | A rating |
| DR LONDON CONSTRUCTION LTD | Hull | A rating |
| DR LOUISE MAY LIMITED T/A Kare Plus Wirral | Wirral | A rating |
| Dr Lynch & Partners | Batley | A rating |
| Dr M J Cockerill | Coventry | A rating |
| Dr M Keersmaekers & Partners | Stoke-on-Tren | A rating |
| Dr Maassarani & Partners | Liverpool | A rating |
| Dr Mahbub's Surgery | Walsall | A rating |
| Dr Maiden-Tilsen and Partners T/A The Grange Practice | Ramsgate | A rating |
| Dr Mani Aesthetics limited T/A The Mittal Hair Clinic | London | A rating |
| DR Maritime Assets Ltd | Kilkeel | A rating |
| Dr Matla Medical Aesthetics | Newcastle upon Tyne | A rating |
| Dr McCormack & Partners | Abergele | A rating |
| Dr McLachlan & Partners | Helensburgh | A rating |
| Dr Michael Frain Ltd | Bristol | A rating |
| Dr Mittal and Partners | Reading | A rating |
| DR MOBILE LIMITED | LIVERPOOL | A rating |
| Dr N G Kelly & Partners | Annan | A rating |
| Dr N Hayward & Partners | Shipley | A rating |
| DR NANCY LONDON PVT LTD | Cardiff | A rating |
| Dr Nanda, Singh and Kokri | Middlesbrough | A rating |
| Dr O'Donovan & Partners | Dalton-in-Furness | A rating |
| Dr Okeahialam & Partners | Bradford | A rating |
| Dr Oraelosi and Partners | London | A rating |
| Dr Oram & Partners | Upper Gornal | A rating |
| Dr P A A Wood & Partners | Derby | A rating |
| Dr P Arumugaraasah's & Partners | London | A rating |
| Dr P Stocks & Partners | Bexhill-on-Sea | A rating |
| Dr Partington & Partners | Puckeridge | A rating |
| Dr Patel's Ayurveda | Pinner | A rating |
| Dr Pullan & Partners | Stoke on Trent | A rating |
| Dr PV Gudi and Partner | WESTBROMWICH | A rating |
| Dr Q's Grill and Pizza Limited T/A Dr Q's Food Factory | Sunderland | A rating |
| Dr R K Arora | West Bromwich | A rating |
| Dr R K Mathews Surgery | Grimsby | A rating |
| Dr R T Lakshmish t/a Allt Goch Medical Centre | Flint | A rating |
| Dr R W Harrison & Partners | GOOLE | A rating |
| Dr Raajvy Shah T/A High Street Dental Practice | Bedford | A rating |
| Dr Rachel Ng & partners | Co Durham | A rating |
| Dr Rai's Practice | Skelmorlie | A rating |
| Dr Rakesh Sachdev T/As Sachdev & Co | Coventry | A rating |
| Dr Rani Ltd | Bracknell | A rating |
| Dr Rasha Clinic London Ltd | London | A rating |
| Dr Reddys Laboratories (UK) Limited | Cambridge | A rating |
| Dr Rez Dental | Liverpool | A rating |
| Dr Rory Stewart | London | A rating |
| Dr RR Limited | Newtown | A rating |
| Dr S Ahmed Practice | Manchester | A rating |
| Dr S N Gupta and Partners T/A Salisbury Avenue GP Surgery | Barking | A rating |
| Dr S P Singh and Partners | Pontefract | A rating |
| Dr S Raghavan | Birmingham | A rating |
| Dr Sabrina Limited | London | A rating |
| DR SCENT INTERNATIONAL LTD | LONDON | A rating |
| Dr Sellens & Partners | Burton on Trent | A rating |
| Dr Shah & Partners | Stoke On Trent | A rating |
| Dr Shahab Mirjafari Ltd | London | A rating |
| Dr Shahrzad Yeganeh t/a Newport Road Dental Clinic | Cardiff | A rating |
| DR SIMON'S ACADEMY & CONSULTANCY OF SCIENCE LIMITED | MANCHESTER | A rating |
| Dr Smart and Partners | Dudley | A rating |
| Dr Smile Ltd | Ludlow | A rating |
| Dr Smita Donde T/A London Road Dental Centre | Croydon | A rating |
| Dr Spencer and partners - Burton Latimer Medical Centre | Kettering | A rating |
| DR Studios Ltd, | Milton Keynes | A rating |
| Dr Susan Das and Dr Ruth King T/A Pendeen Surgery | Ross-on-Wye | A rating |
| Dr Taylor & Partners | Leeds | A rating |
| Dr Tiguti & Partners | Stoke on Trent | A rating |
| Dr Tom Havard | Aberaeron | A rating |
| Dr Uden & Partners, trading as Bampton Surgery | Bampton | A rating |
| Dr V G Tailor and Dr A Chesterman T/A Hillcrest Surgery | London | A rating |
| Dr V Sarveswaran & Mrs. A Sarveswaran T/A VVS Service Stations | Redditch | A rating |
| Dr Vapes E-Liquid Ltd T/A Dr Vapes | Greenford | A rating |
| Dr Vasanth and Partners | Manchester | A rating |