| Daarf Solutions Limited | Watford | A rating |
| DAARRE PRIVATE LTD T/A VRISH Authentic Indian Restaurant | Benfleet | A rating |
| Daaruk Consulting Ltd | Windsor | A rating |
| DAAS FOOD LTD T/A SUBWAY | BRISTOL | A rating |
| DAATA MEAT AND POULTRY LTD | Edinburgh | A rating |
| Daataa Ltd | Dudley | A rating |
| DAAWAT RINGWOOD LTD t/a ROYAL DAAWAT | Ringwood | A rating |
| Dab Logistics Midland | West Bromwich | A rating |
| Dabale Limited | London | A rating |
| DABANG LIMITED | Stockport | A rating |
| Dabmoo Limited T/A Nisa Local | Birmingham | A rating |
| Dabster Systems UK Limited | Staines-Upon-Thames | A rating |
| DABUR INTERNATIONAL LIMITED | LONDON | A rating |
| Dabur UK Trading Limited | London | A rating |
| DAC Beachcroft Claims Limited | London | A rating |
| DAC Beachcroft LLP | London | A rating |
| DAC GROUP UK OPERATIONS LTD. | London | A rating |
| DAC Limited | Sabden | A rating |
| DAC POWER | Cheltenham | A rating |
| Dacey Ltd | Cardiff | A rating |
| Dachser Ltd | Northampton | A rating |
| DACI Utilities Engineering Consultancy Limited | Salford | A rating |
| Dack Motor Group | Lincoln | A rating |
| Dacorum Borough Council | Hemel Hempstead | A rating |
| Dacre House Limited trading as Dacre House Veterinary Clinic | Tunbridge Wells | A rating |
| DACSA Limited | Liverpool | A rating |
| Dada Education Global Limited | Leeds | A rating |
| Dada Projects Ltd | Sherborne | A rating |
| Dadar Food Limited T/A Pepe's Piri Piri | Corby | A rating |
| DADIBHAIS (BRADFORD) LIMITED TA DADIBHAIS COOKSMILL | Bradford | A rating |
| Dado Supplies UK Ltd | Greenford | A rating |
| Dadoos Food Store Ltd | London | A rating |
| Dadsha Service Stations limited | Hemel Hempstead | A rating |
| DADSON EDWARDS LTD | London | A rating |
| DADYAL HAIR STYLIST LIMITED | LONDON | A rating |
| DADYAL HALAL MEAT LTD | Slough | A rating |
| Daella Digital LTD | Aberdeen | A rating |
| Daemon Solutions Limited | Paddington | A rating |
| Daesang UK | Hammersmith | A rating |
| DAF Trucks Limited | Bucks | A rating |
| Dafen Welfare Cricket Club | Llanelli | A rating |
| Daffodil Hotel 2 Limited | Grasmere | A rating |
| DAFFODIL PREPARATORY SCHOOL LTD | London | A rating |
| DAFFODILS CARE AND SUPPORT SERVICES | South Croydon | A rating |
| DAFFODILS HOMES LIMITED | Stanmore | A rating |
| Daffodils Nursery Ltd | Smethwick | A rating |
| DAFLAVOURZ LTD | Middlesbrough | A rating |
| Dage Precision Industries Limited | Aylesbury | A rating |
| DAGEM Power Ltd | Cannock | A rating |
| Dagenham Cash & Carry Ltd | Dagenham | A rating |
| DAGENHAM DOUBLE GLAZING LIMITED | Ilford | A rating |
| Dagenham Enterprise Ltd | Dagenham | A rating |
| DAHER AEROSPACE LTD | Derby | A rating |
| Dahlia Recycling Limited | London | A rating |
| DAHNAY LOGISTICS (UK) LTD | Chadwell Heath | A rating |
| Dahua Technology UK Limited | Maidenhead | A rating |
| Dahuma Ltd | London | A rating |
| DAI Global UK | London | A rating |
| DAI-ICHI LIFE INTERNATIONAL (EUROPE) LIMITED | London | A rating |
| DaiDai Group Limited | London | A rating |
| Daido Industrial Bearings Europe Limited | Somerset | A rating |
| Daido Metal Co., Ltd. European Technical Centre (UK) | Ilminster | A rating |
| DAIFUKU AIRPORT UK LTD. | Kingston Upon Hull | A rating |
| Daihatsu Infinearth (Europe) Ltd. | London | A rating |
| Daiichi Sankyo UK Limited | Uxbridge | A rating |
| Daikin Airconditioning UK Limited | Weybridge | A rating |
| Daikin Applied (UK) Limited | Cramlington | A rating |
| Daikoku Ramen Ltd | Stroud | A rating |
| Dailana Ltd | London | A rating |
| Dailoqa Solutions (UK) Limited | London | A rating |
| Daily Assistance Ltd | London | A rating |
| DAILY COMFORT HEALTHCARE LTD | Hampshire | A rating |
| Daily Crave 92 Ltd | Workington | A rating |
| Daily Crave Ltd | Warrington | A rating |
| Daily Deli Limited | Manchester | A rating |
| Daily Dose Ltd | London | A rating |
| Daily Feed Limited | Manchester | A rating |
| Daily Food Services T/A Your Daily Bakery | Redditch | A rating |
| Daily Fresh Dairies | Coventry | A rating |
| DAILY FRESH MEAT LTD | DAGENHAM | A rating |
| DAILY LIVING CARE LTD | Coventry | A rating |
| Daily Needs Food and Wine Limited | Taunton | A rating |
| DAILY SAVE LIMITED | Woking | A rating |
| dailycare4u (Telford) Ltd | Telford | A rating |
| DailyPay (NI) LTD | Belfast | A rating |
| DAIMA GLOBAL LIMITED | London | A rating |
| Daimizuki food limited | London | A rating |
| Daimler Truck UK Limited | Milton Keynes | A rating |
| Daingade Building Automation Ltd. | Ilford | A rating |
| DAININ BC LIMITED | Glasgow | A rating |
| Daira's Personnel Ltd. | Coventry | A rating |
| Dairy Crest Limited (trading as Saputo Dairy UK) | Weybridge | A rating |
| Dairy Day | Herts | A rating |
| Dairy Den (UK) Limited | Croydon | A rating |
| DAIRY FARM PRODUCTS LIMITED | Birmingham | A rating |
| Dairy Lincs Limited | Grimsby | A rating |
| Dairyfresh Ltd | Aston | A rating |
| Dairygold Food Ingredients UK Ltd | Crewe | A rating |
| Daish's Esplanade Hotel | Scarborough | A rating |
| Daisy Chain Studio Ltd | London | A rating |
| Daisy Communications Ltd | Brierfield | A rating |
| DAISY GREEN FOOD LIMITED | LONDON | A rating |
| Daisy Holdings Limited | Nelson | A rating |
| Daisy Media Ltd | Bristol | A rating |
| Daisy Phan Beauty LTD Trading as Dunmurry Nails & Spa | Dunmurry | A rating |
| DAISY SERVICES LTD | GLOUCESTERSHIRE | A rating |
| DAISY TAKEAWAY LTD | Chorley | A rating |
| Daisy Trading Ltd T/A Cosmo Aberdeen | Aberdeen | A rating |
| Daisy's Nail Company Ltd | Brighton | A rating |
| Daisybank Day Nursery Ltd | Bramhall | A rating |
| Daisychain Homecare Services (Bakewell) Limited | Matlock | A rating |
| Daisymill Technologies Limited | Salford | A rating |
| Daisys Delights Ltd | Manchester | A rating |
| DAIVID Ltd | London | A rating |
| Daiwa Anglo-Japanese Foundation | London | A rating |
| Daiwa Asset Management (Europe) Ltd | London | A rating |
| Daiwa Capital Markets Europe Limited | London | A rating |
| Daiwa Corporate Advisory Ltd | London | A rating |
| DAIWA HOUSE UK LIMITED | London | A rating |
| Daiwa Sports Ltd | Wishaw | A rating |
| Daizu Sushi Bar Ltd | Folkestone | A rating |
| Dajani Pharmacy | Kensington | A rating |
| DAJO Solutions | NORTHAMPTON | A rating |
| DAK Drafting Services Ltd | Lymington | A rating |
| DAKA FAMILY LIMITED | MORECAMBE | A rating |
| Dakota Hospitality Ltd | Manchester | A rating |
| DAKS Simpson Limited | London | A rating |
| Daksfirst Limited | London | A rating |
| Daktronics UK Limited | Bristol | A rating |
| Dal Fiorentino Ltd | London | A rating |
| DALAL & SONS LTD | Leeds | A rating |
| Dalata Cardiff Limited | Cardiff | A rating |
| Dalata UK Limited | Cardiff | A rating |
| DALBEATTIE LIMITED T/A PREMIER | Dalbeattie | A rating |
| Dalbeattie Medical Practice | Dalbeattie | A rating |
| Dalber Limited | Oxted | A rating |
| Dalberg Global Development Advisors Limited | London | A rating |
| Dalbergia Consulting Limited | Peterborough | A rating |
| DALCHI HEALTHCARE LIMITED | Derby | A rating |
| Dalchini Ltd t/a Dalchini | London | A rating |
| DALCON LIMITED | Prestwick | A rating |
| Dale Care and Support Limited | Rochdale | A rating |
| Dale Carnegie London | London | A rating |
| Dale Farming Limited | Holmes Chapel | A rating |
| Dale Kane Trailers | Castlewellan | A rating |
| Dale Medical Practice | Wolverhampton | A rating |
| Dale Nazzari & Company | London | A rating |
| Dale Nazzari and Company Limited | London | A rating |
| Dale Retail Ltd T/A Go Local Extra | Heckmondwike | A rating |
| DALE SIGNS LTD | NOTTINGHAM | A rating |
| Dale Solutions Limited | Croydon | A rating |
| Dale Street Hotel Limited | Liverpool | A rating |
| Dale Syndicate Services Limited | London | A rating |
| Dale Topco Limited | Burton-On-Trent | A rating |
| Dale Topco Limited | Burton on TRent | A rating |
| Dale Ventures Limited | London | A rating |
| Dalemead Care Home Ltd | Twickenham | A rating |
| Dalen Limited | Birmingham | A rating |
| Daler Kitchens Ltd | Hayes | A rating |
| Dales House | Hull | A rating |
| Dales Water Services Ltd. | Ripon | A rating |
| Daleside Consulting Limited | London | A rating |
| Daleside Nursing Home Ltd t/a Daleside Nursing Home | Birkenhead | A rating |
| Daleside Vets | Wrexham | A rating |
| Dalesview Partnership Ltd | Chorley | A rating |
| Dalet UK Limited | London | A rating |
| Daley CE UK Ltd | London | A rating |
| Daley Home Care | Bridport | A rating |
| DALGARNO SUBSHOPS LIMITED | INVERNESS | A rating |
| Dalgety Bay Care Home | Dalgety Bay | A rating |
| Dalgety Bay Specsavers Limited | Dalgety Bay | A rating |
| Dalgety Limited | Burton on Trent | A rating |
| Dalgety Ltd | Castle Donnington | A rating |
| Dalia Holdings Limited | London | A rating |
| Dalims Style Beauty Salon | Milton Keynes | A rating |
| DALIN TRACKING AND ALIGNMENT LTD | Dagenham | A rating |
| Dalir Limited | London | A rating |
| Dalkeith Restaurants Ltd | Dalkeith | A rating |
| Dalkia Energy Services Ltd | London | A rating |
| Dalkia UK Holding Limited | London | A rating |
| Dalla London Ltd | London | A rating |
| Dalla Terra Wine Bar Ltd. | London | A rating |
| Dallam Stores | Warrington | A rating |
| Dallas & Co | Henley-on-Thames | A rating |
| DALLAS CHICKEN & PIZZA LTD | Morden | A rating |
| DALLOW ROAD RETAIL LIMITED | LUTON | A rating |
| Dallys Food Limited | Coalville | A rating |
| DALMACIA HOTELS LIMITED | London | A rating |
| Dalmann Limited | Hungerford | A rating |
| Dalmeny House | sheringham | A rating |
| Dalmeny House Dental | London | A rating |
| DALMUIR LOUNGE LTD T/A Yara Lounge and Restaurant Dalmuir Clydebank | Glasgow | A rating |
| Dalord Healthcare Limited | HUNTINGDON | A rating |
| DALRADIAN GOLD LIMITED | OMAGH | A rating |
| Dalriada Urgent Care | Ballymena | A rating |
| DALROAD NORSLO LIMITED | Luton | A rating |
| Dalston Bread and Wine Ltd | London | A rating |
| Dalston Cross Specsavers Limited | London | A rating |
| Dalston Hospitality Ltd | London | A rating |
| Dalston Lounge Ltd | London | A rating |