| HANGAR (WORCS) LTD | East Sussex | A rating |
| HANGAR 13 UK LIMITED | BRIGHTON | A rating |
| HANGERCRAFT LIMITED | London | A rating |
| Hanging Heaton Cricket Club | Batley | A rating |
| HANGLETON CHAUDHARI BURGER LIMITED | HOVE | A rating |
| HANGLETON DENTAL PRACTICE LIMITED | HOVE | A rating |
| Hangloose London | Greenhithe | A rating |
| HANGMAN LONDON LTD | Kew Gardens | A rating |
| Hanh Hoang T/a Nail Plaza | Twickenham | A rating |
| HANI TRADING LTD T/A BP | WELLINGBOROUGH | A rating |
| HANIF & CO LIMITED T/A Kebabish Fast Food | Coventry | A rating |
| HANIF HALAL MEAT | London | A rating |
| HANIM ANA LIMITED | FLEETWOOD | A rating |
| Hank Trading Ltd | Barnet | A rating |
| Hankinson Duckett Associates Ltd | Wallingford | A rating |
| Hankook Tyre UK Limited | Daventry | A rating |
| HANKYU HANSHIN EXPRESS UK LIMITED | FELTHAM | A rating |
| Hankyu Travel International Europe UK Ltd | London | A rating |
| Hanland Capital Limited | Birmingham | A rating |
| Hanmere Polythene Limited | Hertfordshire | A rating |
| Hann Tucker Associates Limited | Woking | A rating |
| HANNA LETTING & TRAVEL LTD | Sheffield | A rating |
| Hannafin Contractors Limited | Kidderminster | A rating |
| Hannaford Turner LLP | London | A rating |
| Hannah Beauty LTD Trading as The Nail Atelier | London | A rating |
| HANNAH BEUTE LTD | Marlborough | A rating |
| Hannah Grace Care & Support Ltd | Kenilworth | A rating |
| HANNAH LONDON BEAUTY LTD | Harrow | A rating |
| Hannah Martin London | London | A rating |
| HANNAH RETAIL LTD T/AS PREMIER EXPRESS | Margate | A rating |
| Hannah Sweet House & Spice Grocery Food Store | Blackburn | A rating |
| Hannah's Bakeries Ltd | Grays | A rating |
| HANNAHAUTOSOLUTIONS LTD | Glasgow | A rating |
| Hannaman Material Handling Limited | Deeside | A rating |
| Hannells Foods Ltd | Edinburgh | A rating |
| Hanning Homes Care Limited | Wallingford | A rating |
| Hanningfield Process Systems Limited | Rochford | A rating |
| Hanningfield Retirement Home | Sittingbourne | A rating |
| Hannon Steel Ltd | Antrim | A rating |
| Hannover Services (UK) Limited | London | A rating |
| Hanns-Seidel-Stiftung UK Ltd | London | A rating |
| HANOTO TECHNOLOGY LTD | Barcombe | A rating |
| Hanover Communications | London | A rating |
| Hanover Displays Ltd | Lewes | A rating |
| Hanover Investors Management LLP | London | A rating |
| HANOVER NEWSAGENT LIMITED | Brighton | A rating |
| Hanover Search Group Ltd | London | A rating |
| Hanover17 Ltd | Greater London | A rating |
| HANREF LTD | London | A rating |
| HANS CONSTRUCTION LTD | Southall | A rating |
| Hans Facilities Service Limited | London | A rating |
| Hans Guntner (UK) Limited | Camberley | A rating |
| HANS IT LIMITED | Feltham | A rating |
| HANSA-FLEX UK Ltd | Brentford | A rating |
| HANSAM LTD TA HEAVENLY DESSERTS BATLEY | Batley | A rating |
| Hansbiomed Europe Ltd | Wimbledon | A rating |
| HANSBURY LAWYERS LIMITED | LONDON | A rating |
| Hansel & Pretzel Limited | Richmond upon Thames | A rating |
| Hansel Careers Ltd | London | A rating |
| Hansel Henson Limited | London | A rating |
| Hansen Corporation Europe Ltd | London | A rating |
| Hansen Sweeney Limited | London | A rating |
| Hansen Technologies CDE Limited | London | A rating |
| HansenGroup Ltd | Sunderland | A rating |
| HANSHOW UK CO., LTD | London | A rating |
| HANSIKAH STORE LTD | Birmingham | A rating |
| HANSIKDOSIROCK LTD | Edinburgh | A rating |
| Hanslope Care | Milton Keynes | A rating |
| Hansom Cab Limited T/A The Hansom Cab | London | A rating |
| Hanson Asset Management Limited | London | A rating |
| HANSON GREY LTD | LONDON | A rating |
| Hanson Investments Limited | Birmingham | A rating |
| Hanson Mart | Birmingham | A rating |
| HANSON QUARRY PRODUCTS EUROPE LIMITED | Maidenhead | A rating |
| Hanson Search | London | A rating |
| HANSON TRADE INTERNATIONAL LIMITED | London | A rating |
| HANSON WADE CONFERENCES LIMITED | London | A rating |
| HANSON WADE GROUP LIMITED | London | A rating |
| Hanson Wade Limited | London | A rating |
| Hanson Woods Solicitors | Ilford | A rating |
| HanSpringett Ltd | Colchester | A rating |
| Hansra Construction Ltd | Hayes | A rating |
| Hansuke Consulting Limited | Watford | A rating |
| HANSUNG FOOD LTD | New Malden | A rating |
| Hantec Markets Limited | London | A rating |
| Hantec Prosperous Ltd | London | A rating |
| Hants Healthcare Ltd | Southampton | A rating |
| HANTS LOGISTICS LTD | FAREHAM | A rating |
| Hanuma Ltd | Kingswinford | A rating |
| Hanumaan Limited T/A Blyth Country House Care Home | Worksop | A rating |
| Hanuman Community Centre Trust | London | A rating |
| Hanuman Partners Limited | London | A rating |
| HANVI LTD | Ilford | A rating |
| Hanwa UK Limited | London | A rating |
| HanWay Films Limited | London | A rating |
| Hanwell Halal Meat | Hanwell | A rating |
| HANWELL VALET LIMITED | London | A rating |
| HANWHA OCEAN CO., LTD. | London | A rating |
| Hanwha Ocean Europe | London | A rating |
| Hanwha Vision Europe Limited | Chertsey | A rating |
| Hanworth Plumbing & Electrical Ltd | Hanworth | A rating |
| Hanya Homecare Ltd | Nottingham | A rating |
| HANZAK LIMITED | Stockport | A rating |
| Hao Bao Limited | Southampton | A rating |
| HAOHAO DESIGN LTD | London | A rating |
| Haowei Property Limited | Manchester | A rating |
| HAP CARE HOMES LTD | HALESOWEN | A rating |
| HAP Chartered Architects Ltd | High Wycombe | A rating |
| HAPA CLOUD LIMITED | London | A rating |
| Hapag Lloyd (UK) Ltd | Barking | A rating |
| Hapimag Management (UK) Ltd | London | A rating |
| HAPO (UK) Limited | Rochester Kent | A rating |
| Happaning | LONDON | A rating |
| Happening Technology Ltd | London | A rating |
| HAPPHOM LTD | London | A rating |
| Happiest Minds Technologies Pvt Ltd | Reading | A rating |
| Happl Ltd | London | A rating |
| Happy 2 Help Community Care Ltd | Filey | A rating |
| Happy Adventures Tourism UK Limited | Manchester | A rating |
| HAPPY AND FREEDOM C,I,C. | BIRMINGHAM | A rating |
| Happy Ashley Ltd | London | A rating |
| Happy at Home (Bromley) Limited | West Wickham | A rating |
| HAPPY AT HOME COMMUNITY CARE SERVICES LTD | Reading | A rating |
| Happy Bar and Grill Ltd t/a Happy Restaurant | London | A rating |
| HAPPY CAR DEALS LTD | Cambridge | A rating |
| Happy Care Living Ltd | Erdington | A rating |
| Happy Care Ltd | Bristol | A rating |
| HAPPY CHILDREN CARE LTD | Birmingham | A rating |
| Happy Church The Christian Action Faith Ministries | Stanmore | A rating |
| HAPPY CINNAMON ARTISAN BAKERY LTD | Nailsworth | A rating |
| Happy Crab Ltd. | London | A rating |
| Happy Days Farming Co Ltd | LINCOLN | A rating |
| Happy Days Nursery | Harrow | A rating |
| Happy Days Nursery Southam | Southam | A rating |
| Happy Dental Laboratory Limited | Portsmouth | A rating |
| Happy E Limited | Edinburgh | A rating |
| HAPPY EDUCATION CONSULTANCY LTD | London | A rating |
| Happy Family Care Services Ltd | Carshalton | A rating |
| Happy Finish Ltd | London | A rating |
| HAPPY FOOD LIMITED | London | A rating |
| HAPPY FOOD STREET LTD T/A Happy Eats | Glasgow | A rating |
| HAPPY HEALTHY LIFE | Hastings | A rating |
| HAPPY HEAVEN LTD | Bury | A rating |
| Happy Home Store Limited | London | A rating |
| Happy Hour Productions Ltd | Bristol | A rating |
| Happy Kids Dental Practice Ltd | London | A rating |
| HAPPY KIDS LTD | London | A rating |
| Happy Kitchen Ltd | Glasgow | A rating |
| Happy Limited | London | A rating |
| HAPPY PAWS LODGE LTD | Broadstairs | A rating |
| HAPPY PLAICE BRIGHTON LTD | Brighton | A rating |
| HAPPY RETAIL LIMITED | Wembley | A rating |
| Happy Rugby Ltd | Hereford | A rating |
| Happy Science Europe | London | A rating |
| Happy Scot Limited | Cumbernauld | A rating |
| Happy Shopper | Leeds | A rating |
| HAPPY SHOPPER | HULL | A rating |
| HAPPY SHOPPERS (CHADDERTON) LIMITED | Oldham | A rating |
| HAPPY SHOPPERS LIMITED | LONDON | A rating |
| HAPPY SKY BAKERY LTD | London | A rating |
| HAPPY TAILS VETS LTD | Bexhill-on-sea | A rating |
| HAPPY TEA LTD | Coventry | A rating |
| HAPPY VANILLA CROCHET LTD | London | A rating |
| HAPPY VIBES TRADING LTD | London | A rating |
| Happy Wolf Pub Company Ltd | Southam | A rating |
| HAPPYHARRY LTD | Sheffeld | A rating |
| HAPPYHOME PLUMBING AND ELECTRICAL (UK) LTD | Hayes | A rating |
| HAPPYLIFE WHOLESALE LTD | Luton | A rating |
| HAPPYMOTION LIMITED | Liverpool | A rating |
| HappyOrNot UK Ltd. | London | A rating |
| Happyside Limited | London | A rating |
| HappySignals UK Limited | Warwick | A rating |
| Haps Service Limited | Wolverhampton | A rating |
| Haptic Architects Ltd | London | A rating |
| Haptic Chiropractors Limited | London | A rating |
| Haq Halal Shop Ltd | Birmingham | A rating |
| Haq Water for Life | Bradford | A rating |
| Haque Sweets LTD | London | A rating |
| HAQUES INDIAN | Wiltshire | A rating |
| HAR CHARAN MOTORS (MIDLANDS) LIMITED | BIRMINGHAM | A rating |
| Hara Global Capital Limited | London | A rating |
| Harada Industries (Europe) Limited | Birmingham | A rating |
| Harajuku Kitchen Limited | Edinburgh | A rating |
| HARAKA PHYSIO LTD | HEMEL HEMPSTEAD | A rating |
| Haraldo Ltd | Llanbradach | A rating |
| Haramtravel Ltd | Bradford | A rating |
| Haran Retail Ltd | London | A rating |
| Harasoft Technologies Limited | Milton Keynes | A rating |
| HARBANS GENERAL TRADING UK LIMITED | Hayes | A rating |
| Harbert Management Corporation (Europe) LLC | London | A rating |
| Harbor Global UK Professional Services Ltd | London | A rating |
| Harbor Housing C.I.C | Bracknell | A rating |
| Harborne Academy | Birmingham | A rating |
| Harborne Cricket Club | Birmingham | A rating |
| Harborne Medical | Harborne | A rating |
| Harborne Specsavers Limited | Birmingham | A rating |
| Harborough Field Surgery | Rushden | A rating |
| Harbottle & Lewis LLP | London | A rating |
| Harbour Centre (Plymouth) Limited | Plymouth | A rating |
| Harbour Energy Plc | London | A rating |