| Harbour Energy Services Limited | London | A rating |
| Harbour Healthcare (North) Ltd | Stockport | A rating |
| Harbour Healthcare Holdings Ltd | Stockport | A rating |
| Harbour Healthcare Ltd | Stockport | A rating |
| Harbour Homes UK Limited | Stevenage | A rating |
| Harbour Hotels Group Limited | Christchurch | A rating |
| Harbour Hub Limited | Bristol | A rating |
| Harbour Key Limited | Cheltenham | A rating |
| Harbour Lifestyle | Newmarket | A rating |
| Harbour Rise Care Home | Paignton | B rating |
| Harbour Solutions Group Limited | London | A rating |
| Harbourside Health Centre | Swansea | A rating |
| HarbourVest Partners (UK) Limited | London | A rating |
| Harcus Parker Limited | London | A rating |
| Hard Anodising Surface Treatments Ltd | Kidderminster | A rating |
| Hard Drive Technology Limited | Atherstone | A rating |
| Hard Landscaping Supplies Limited | NORTHAMPTON | A rating |
| HARD NUMBERS LTD | London | A rating |
| Hard Rock Cafe (UK) Limited | London | A rating |
| Hard Rock Cafe Edinburgh | London | A rating |
| Hard Ventures Ltd t/a Papa John's Pizza | Birmingham | A rating |
| Hardev Nandhra | London | A rating |
| Hardgrave Farm, (Dumfries) Limited | Dumfries | A rating |
| Harding & James Partnership | Downpatrick | A rating |
| Harding Brothers Retail Limited | Bristol | A rating |
| HARDING CHIROPRACTIC LIMITED | DUNKIRK | A rating |
| Harding Loevner (UK) Ltd. | London | A rating |
| HARDING STORE LIMITED | London | A rating |
| HARDLEY SOLUTIONS LTD | London | A rating |
| Hardman Structural Engineers Ltd | London | A rating |
| HARDMAN TRADING LTD | Liverpool | A rating |
| HARDSHELL UK LIMITED | Cardiff | A rating |
| Hardwick Dene Limited | St Neots | A rating |
| HARDY & COMPANY | LONDON | A rating |
| Hardy Signs Ltd | Burton-Upon-Trent | A rating |
| Hardy Team Ltd | Kent | A rating |
| Hardy's Market Ltd | Faversham | A rating |
| Hardy's Newsagent | Whitley Bay | A rating |
| Hare & Humphreys Ltd | LONDON | A rating |
| Hare Food & Wine Ltd T/A J & J News | London | A rating |
| HARE KRISHNA FOODS LIMITED | WALLINGTON | A rating |
| Hare Krishna Group Limited | East Molesey | A rating |
| HARE KRISHNAA ENTERPRISE LIMITED | Wembley | A rating |
| HARE LANE LTD | GLOUCESTER | A rating |
| Hare Trading Ltd | Hounslow | A rating |
| Harea Construction | Northampton | A rating |
| HAREEM BRODICK LIMITED | Kirkcaldy | A rating |
| Harefield Cricket Club | Uxbridge | A rating |
| HAREFIELD JUNIOR SCHOOL | UXBRIDGE | A rating |
| HAREFIELD MANOR HOTEL LIMITED TA HAREFIELD MANOR HOTEL | Romford | A rating |
| Haremi Limited | Chelteham | A rating |
| Hareram Epsom Ltd T/A Epsom Post Office | Epsom | A rating |
| HARESBROOK PARK LIMITED | SHREWSBURY | A rating |
| Haresfield Surgery | Worcester | A rating |
| Harewood Medical Practice | Catterick Garrison | A rating |
| Harewoods Define Spaces Limited | Uxbridge | A rating |
| Harford Control Limited | Trowbridge | A rating |
| Hargopal Plumbing & Electric Ltd | Hayes | A rating |
| hargrave management limited | london | A rating |
| Hargreaves Enterprises Limited | Ulverston | A rating |
| Hargreaves Foundry Drainage Ltd | Halifax | A rating |
| Hargreaves Industrial Services Limited | Barnsley | A rating |
| Hargreaves Lansdown Limited | Bristol | A rating |
| Hargreaves Lansdown plc | Bristol | A rating |
| HARGREAVES MOVING IMAGE LTD | London | A rating |
| Hargun Sweet Centre Limited | Walsall | A rating |
| HARI & SAV'S LTD | Manchester | A rating |
| Hari and Esha News | Abingdon | A rating |
| Hari Darshan Stores Limited t/a Diane's Mini Market | Tyne And Wear | A rating |
| HARI ENTERPRISE LTD | Braintree | A rating |
| HARI EXPRESS LIMITED T/A LIMEHOUSE NEWSAGENTS | LONDON | A rating |
| HARI FOOD AND WINE LTD | Slough | A rating |
| HARI MK LTD T/A COG LANE STORES PREMIER | BURNLEY | A rating |
| Hari Naam Investments Limited | London | A rating |
| Hari Newsagent Limited | Norwich | A rating |
| HARI PRASADAM LTD | Harrow | A rating |
| HARI-JAI LTD | SWINDON | A rating |
| Haribay Ltd | Peterborough | A rating |
| Harichy Consultants Ltd | Grays | A rating |
| HariCovert Ltd t/a Trinity House Orthodontics | Wakefield | A rating |
| HARID TECH LTD | WEST BROMWICH | A rating |
| Haridarshan Limited | Letchworth | A rating |
| Haridham Enterprise Ltd | Stanmore | A rating |
| Haridol Care Services Ltd | London | A rating |
| HARIHARASUTHAN GLOBAL LIMITED | Leeds | A rating |
| HARIKRISHNA BEVERAGES LTD T/A MOOBOO BUBBLE TEA | ENGLAND | A rating |
| HARIKRISHNA FOODS LTD T/A MOOBOO BUBBLE TEA | HOUNSLOW | A rating |
| Harima UK Ltd | Hamel Hempstead | A rating |
| Haringey Education Partnership | London | A rating |
| Haringey Healthcare Ltd t/a Medi-Park Clinic | London | A rating |
| Harini Enterprises UK Ltd | Slough | A rating |
| Harini Superstore Limited | Northolt | A rating |
| Haris & Co (UK) Ltd. | Glasgow | A rating |
| HARIS AUTOS LTD | London | A rating |
| Haris Cake Ltd | LONDON | A rating |
| Haris Estates Ltd | HUDERSFIELD | A rating |
| HARIS HUSSAIN LTD | Edinburgh | A rating |
| Haris khalid co limited | London | A rating |
| Harish Cuisine Ltd T/A Banana Leaf | Cambridge | A rating |
| Harish Kosuru Photography Limited | Gateshead | A rating |
| Harish Supermarket Ltd | SWINDON | A rating |
| HARISHWIN RETAIL LTD | Halesowen | A rating |
| HARISSA AND LEMON LTD | London | A rating |
| Haritha Consultants Limited | Sutton | A rating |
| HARJOT CONSTRUCTION LTD | Harrow | A rating |
| Hark London Limited | Shalford | A rating |
| Harkins Care Ltd | Hull | A rating |
| Harkis Limited | Stoke on Trent | A rating |
| Harland Care Services Ltd | Telford | A rating |
| Harlaxton College | Grantham | A rating |
| Harlees Fish and Chips Ltd | Corfe Mullen | A rating |
| HARLEQUIN DESIGN LONDON LTD | STEVENAGE | A rating |
| Harlequin Dry Cleaners | London | A rating |
| Harlequin Football Club Limited | Twickenham | A rating |
| Harlequin Home Care Ltd | Llantrisant | A rating |
| Harlequin Software Ltd | Marlborough | A rating |
| Harlesden Health Limited | London | A rating |
| Harleston dental and aesthetic clinic | norfolk | A rating |
| HARLESTON LOCAL STORE LTD | Norfolk | A rating |
| Harleston Medical Practice | Harleston | A rating |
| Harley Education Ltd | Ilford | A rating |
| Harley Grove Medical Centre | London | A rating |
| Harley Haddow Ltd | Edinburgh | A rating |
| Harley Health Village Limited | London | A rating |
| HARLEY HOUSE SUPPORTED LIVING LTD | COLCHESTER | A rating |
| Harley Mind Care Psychiatrists Ltd | London | A rating |
| Harley Private Dental Ltd T/A Harley Private Dental | Sheffield | A rating |
| Harley Street Concierge Ltd | Hampshire | A rating |
| Harley Street Dental Clinic Limited | London | A rating |
| Harley Street Dental Studio | London | A rating |
| Harley Street ENT Clinic Ltd | London | A rating |
| Harley Street Fertility Clinic | London | A rating |
| Harley Street General Practice Ltd | London | A rating |
| Harley Street Gynaecology Ltd | London | A rating |
| Harley Street Healthcare Limited | Sheffield | A rating |
| Harley Street Hearing | London | A rating |
| HARLEY STREET HOSPITAL LTD | London | A rating |
| Harley Street Injectables Limited | London | A rating |
| HARLEY STREET MEDICS LTD | Glasgow | A rating |
| HARLEY STREET SPECIALISTS LTD | London | A rating |
| Harley Street Studio Ltd | London | A rating |
| Harley Surgery Limited | LONDON | A rating |
| Harley Therapy Limited | London | A rating |
| Harley-Davidson Europe Ltd | Abingdon | A rating |
| Harleybo Ltd | Heywood | A rating |
| Harlo Limited | London | A rating |
| Harlow College | Harlow | A rating |
| HARLOW DENTAL PRACTICE LIMITED | HARLOW | A rating |
| Harlow Group Limited | Harlow | A rating |
| HARLOW HYBRID AUTO LTD | Harlow | A rating |
| Harlow Islamic Centre | Harlow, Essex | A rating |
| Harlow Printing Limited | South Shields | A rating |
| Harlow Specsavers Limited | Harlow | A rating |
| Harlow Tyre Group Ltd | Harlow | A rating |
| Harm Reduction International | London | A rating |
| HARMAIN JEWELLERS LTD | London | A rating |
| Harman Food Group Limited | Falkirk | A rating |
| Harman International Industries Limited | Hemel Hempstead | A rating |
| HARMAN KANDOLA TRANSPORT LTD | Smethwick | A rating |
| Harman Packaging Ltd | Accrington | A rating |
| Harman Retail Limited | Doncaster | A rating |
| HARMAN SINGH ROOFING LTD | BARKING | A rating |
| Harmeny Education Trust Limited | Edinburgh | A rating |
| Harmer Slater Limited | Sutton | A rating |
| Harmonia Care Village Limited | Walton-On-Thames | A rating |
| Harmonic (UK) Ltd. | Farnborough | A rating |
| Harmonic Consulting Services UK Limited | London | A rating |
| Harmonic Finance & Operations | London | A rating |
| Harmonic Medical Sonography Limited | Manchester | A rating |
| Harmonize Care Ltd | Sudbury | A rating |
| Harmony (Services) Ltd | Coventry | A rating |
| HARMONY AND EDDOES DIRECT LTD | Southampton | A rating |
| Harmony Care and Support Ltd | Ilkeston | A rating |
| Harmony Care Consortium Ltd | Nottingham | B rating |
| Harmony Care Homes (2003) Ltd | WALSALL | A rating |
| Harmony Care Support Ltd | Harrow | A rating |
| Harmony Energy Limited | Knaresborough | A rating |
| HARMONY FILMS LIMITED | London | A rating |
| Harmony Fire Ltd | Yeovil | A rating |
| HARMONY HAVEN HOMES LTD | London | A rating |
| Harmony Helpers Ltd | Blackburn | A rating |
| Harmony Homes(HH) LImited T/A Harmony Supported Living | Banstead | A rating |
| HARMONY HOUSING SOLUTIONS LTD | Birmingham | A rating |
| Harmony Lets Ltd | Nottingham | A rating |
| Harmony New Energy Auto Service (London) Ltd | London | A rating |
| Harnam Engineering Works Ltd | Hayes | A rating |
| HARNAM FOOD & WINE LTD | WINDSOR | A rating |
| Harnbury Holdings Limited | Manchester | A rating |
| Harness Care Ltd | London | A rating |
| Harness Group UK Limited | London | A rating |
| Harness Therapeutics Limited | Cambridge | A rating |
| Harnest Limited T/A Subway | Chesterfield | A rating |
| Harney Westwood & Riegels LLP | London | A rating |
| Harnham Search and Selection Limited | London | A rating |
| Harod Associated Limited | London | A rating |
| Harold Benjamin Solicitors Limited | Middlesex | A rating |
| HAROLD HAWKINS LTD | Ilford | A rating |
| Harold Newsome Ltd | LEEDS | A rating |
| Harold Road Surgery | Hastings | A rating |
| Harold Wood Cricket Club | Harold Woood | A rating |