| Zaman & Zaman Trading Ltd | Taunton | A rating |
| Zaman Foods LTD | Keighley | A rating |
| ZAMAN MARAFKHAIL T/A OXFORD CAFE AND GRILL | OXFORD | A rating |
| Zaman Technologies Ltd | Ilford | A rating |
| ZAMANEK KIMI LTD | Halifax | A rating |
| Zamantraders Limited | London | A rating |
| ZAMBIA HIGH COMMISSION | LONDON | A rating |
| ZAMERS LTD T/A SAFE CARS | Burton on Trent | A rating |
| ZAMEX LTD | Middlesex | A rating |
| ZAMIN MOTORS LTD | Bedford | A rating |
| Zamna Technologies Limited | London | A rating |
| Zamood Limited | London | A rating |
| Zamss Limited t/a Orchid Care | Enfield | A rating |
| ZAMZAM | Bolton | A rating |
| Zamzam Cash & Carry Limited | Rochdale | A rating |
| ZAMZAM HALAL CRAWLEY LTD | Crawley | A rating |
| ZAMZAM PAK LIMITED T/A Muskaan Brow Bar | London | A rating |
| ZAMZAM UK TRADING LTD | London | A rating |
| ZAMZAM WOK & GRILL LTD | London | A rating |
| ZAN ENTERPRISES LIMITED | Croydon | A rating |
| ZANACHICKEN LIMITED | BRADFORD | A rating |
| Zanders (UK) Ltd | London | A rating |
| Zandi Valeting and Tyres Ltd | Walsall | A rating |
| Zandra Rhodes Enterprises | London | A rating |
| Zane Accounting Services Limited | Watford | A rating |
| Zaneen Ltd | London | A rating |
| ZANGI MOTORS LIMITED | Sheffield | A rating |
| Zanoo Limited | Ascot | A rating |
| ZANS Immigration Consultants Ltd | London | A rating |
| ZANTA HEALTHCARE LTD | Birmingham | A rating |
| Zanturlar LTD | Hailsham | A rating |
| Zaoui & Co | London | A rating |
| ZAP AIR HOLDINGS LTD | ESSEX | A rating |
| Zap Production Services Limited | Letheringsett | A rating |
| ZAP PROPERTY LTD | England | A rating |
| ZAP Technology Limited | London | A rating |
| Zap!Juice Limited | Manchester(MAN) | A rating |
| Zapata Food Company Limited | LONDON | A rating |
| ZapIQ Limited | Leighton Buzzard | A rating |
| Zapp Group Limited | London | A rating |
| Zappar Limited | London | A rating |
| ZappiStore Ltd | London | A rating |
| ZAQ TRADING LIMITED | Wolverhampton | A rating |
| Zara 1 Catering & Takeaway Limited | Hayes | A rating |
| ZARA AUTOS LTD | Bilston | A rating |
| Zara Chicken and Grill Ltd T/A Kasey's Chicken | London | A rating |
| Zara Healthcare ltd | Norwich | A rating |
| ZARA KHAN LTD T/a ZARA KHAN | Birmingham | A rating |
| ZARA MAIA INVESTMENTS LIMITED | Southall | A rating |
| Zaracare 786 Ltd | Sheffield | A rating |
| Zarafa Group Limited | Pickering | A rating |
| Zareef Associates Ltd | London | A rating |
| ZAREEN TECHNOLOGIES LIMITED | Potters Bar | A rating |
| Zari Bar & Restaurant | Crawley | A rating |
| Zari Deeside Food Limited TA Zari Indian Restaurant | Deeside | A rating |
| Zaria Group UK Limited | London | A rating |
| ZARIN INVESTMENT LTD | Potters Bar | A rating |
| ZARINA GHANI T/A LEARNING LAND PRE-SCHOOL | Luton | A rating |
| Zarina O Cosmetics Limited | London | A rating |
| ZARIS ESTATES LTD | Manchester | A rating |
| ZARKANS BOUTIQUE (PVT) LIMITED | Birmingham | A rating |
| ZAROLIA PARCEL SERVICE LIMITED | LEICESTER | A rating |
| ZARR ENTERPRISE LTD | BURY | A rating |
| Zarrar Civil Engineering Ltd | Slough | A rating |
| Zaryon Enterprises Ltd | New Malden | A rating |
| ZAS SERVICES (UK) LTD | London | A rating |
| Zash Maintenance Services Ltd | Bristol | A rating |
| ZASS LIMITED | Nottingham | A rating |
| Zasu Ltd T/A Babus Indian Spice | Gilford | A rating |
| Zaum Studio Limited | London | A rating |
| Zaun Limited | Wolverhampton | A rating |
| Zavi Tech Ltd | Glasgow | A rating |
| ZAVIAN LTD | RAYLEIGH | A rating |
| Zaviyar Foods Ltd T/A Miss Millies | Bristol | A rating |
| ZAVIYAR GROUP OF COMPANIES LTD | Dagenham | A rating |
| Zaviyar Techsol Ltd | Birmingham | A rating |
| ZAWADI GLOBAL LIMITED | HUNTINGDON | A rating |
| Zax Bite Limited T/A Papa johns | Bishops Stortford | A rating |
| ZAX Design and Consulting UK Limited | London | A rating |
| Zaxgate Limited T/A Zaxgate Pharmacy | London | A rating |
| Zaxon Ltd | London | A rating |
| Zayaan's Newsagent Ltd | Glasgow | A rating |
| Zayan Halal Meat | Bradford | A rating |
| ZAYAN PROPERTIES DEVELOPER LTD | London | A rating |
| ZAYAN TRAVEL & VISA SERVICES LTD | Walsall | A rating |
| Zaydaan Limited | Bolton | A rating |
| Zaydan Trading Ltd | London | A rating |
| zayds phones ltd | Cheltenham | A rating |
| Zayn 764 Ltd | Coulsdon | A rating |
| Zayn the Clipper Ltd | London | A rating |
| ZAYN'S GENERAL STORE | BRADFORD | A rating |
| Zaynab Catering Ltd | Ipswich | A rating |
| ZAYNAH CARPET & FURNITURE LTD | MILTON KEYNES | A rating |
| Zayndu Ltd | Loughborough | A rating |
| Zaynish Lahori Limited | Burton-On-Trent | A rating |
| Zayo Group UK Limited | London | A rating |
| Zayridh Ltd | London | A rating |
| ZAYYAN FOODS DISTRIBUTION LTD | Barking | A rating |
| ZAZ HARLOW LIMITED T/A PIZZA GOGO | Harlow | A rating |
| Zaza Private Ltd | Stirling | A rating |
| Zazi Catering Ltd | Gloucester | A rating |
| Zazus Kitchen Pubs Ltd | Bristol | A rating |
| ZB RETAIL | LONDON | A rating |
| ZC Transport Ltd | Hounslow | A rating |
| ZCARS AUTO SERVICES MCR LTD | Manchester | A rating |
| ZCO LIMITED | Bolton | A rating |
| Zcubed Property Limited | Cheadle | A rating |
| ZCZ Films Ltd | London | A rating |
| ZD & A LIMITED t/a Highland Homeware | Perth | A rating |
| ZDF German TV | London | A rating |
| ZDU GROUP LIMITED | Glasgow | A rating |
| ZE Global Ltd | Kilmarnock | A rating |
| ZE Passivhaus Services Ltd | Manchester | A rating |
| Zeal & Partners Limited | London | A rating |
| ZEAL CAFE UK LTD | London | A rating |
| ZEAL CAPITAL MARKET (UK) LIMITED | London | A rating |
| Zeal Tech Ltd | London | A rating |
| Zeb Office Equipment & Supplies Limited | Stockport | A rating |
| Zeba Hair and Beauty Ltd | Watford | A rating |
| Zebedee Nursery School Ltd | London | A rating |
| Zebra Architects Ltd | Worcester | A rating |
| Zebra Cooling LTD | Shepperton | A rating |
| Zebra EM | Taunton | A rating |
| ZEBRA LETS (MANSFIELD) LTD | MANSFIELD | A rating |
| Zebra Pen (UK) Ltd. | Runcorn | A rating |
| Zebra Projects Limited | London | A rating |
| Zebra Technologies Europe Limited | Bourne End | A rating |
| ZEBRA WORLDWIDE LIMITED | SOUTH CROYDON | A rating |
| Zebraware Ltd | Warrington | A rating |
| Zeco Ltd | Romford | A rating |
| ZED GROUP LTD | LONDON | A rating |
| ZED PODS Ltd | London | A rating |
| Zed Power Ltd | Surrey | A rating |
| Zedaxis engineering solutions private ltd. | Coventry | A rating |
| zedcarz Limited | Surrey | A rating |
| Zedes Plus Limited | Cheltenham | A rating |
| Zedex Investments Ltd | Rossendale | A rating |
| ZEDRA Audit & Assurance (UK) Limited | London | A rating |
| Zedra Global Services (UK) Limited | London | A rating |
| Zedra Trust Company (UK) Limited | Knutsford | A rating |
| Zedra UK Services Limited | London | A rating |
| Zedsen Limited | London | A rating |
| Zedsoft Limited | Ossett | A rating |
| Zee & S Limited | Bolton | A rating |
| Zee Barbers Limited | Ilford | A rating |
| ZEE CARS LTD | High Wycombe | A rating |
| Zee Consulting Limited | Sheffield | A rating |
| Zee Entertainment UK Limited | Middlesex | A rating |
| ZEE FASHION LIMITED | Manchester | A rating |
| Zee gas and plumbing ltd | Birmingham | A rating |
| ZEE HALAL MEAT LIMITED | Telford | A rating |
| Zee Mobile Barber | BRADFORD | A rating |
| ZEE MOBILE EXCHANGE LIMITED | LONDON | A rating |
| ZEE MOTOR SPARES LIMITED TA Zee Motor Spares Car Batterys | Birmingham | A rating |
| ZEE MOTORS LTD | Leicester | A rating |
| ZEE SECURITY SOLUTIONS LIMITED | Cambridge | A rating |
| Zee's Pizza LTD | Castleford | A rating |
| Zeeco Europe Limited | Rutland | A rating |
| Zeeinx Limited | London | A rating |
| Zeek Ltd | Maidenhead | A rating |
| ZEEKO LTD | COALVILLE | A rating |
| ZEELA LTD | Berkshire | A rating |
| ZEEN CONSTRUCTION LTD | Peterborough | A rating |
| ZEEN TRADE LTD | FOLKESTONE | A rating |
| Zeepay JV UK | London | A rating |
| Zeera (Lyneham) Limited | Chippenham | A rating |
| Zeera Indian Cuisine (South Shields) Ltd | South Shields | A rating |
| ZEERA INDIAN RESTAURANT LTD | STROUD | A rating |
| Zeera Kebabish Limited | East Ham | A rating |
| ZEERA TRADING LTD T/A ZEERA INDIAN TAKEAWAY | HILLINGDON | A rating |
| Zeeshan Ahmad trading as Europa Nelson | Nelson | A rating |
| Zeeshan Ali Enterprises Ltd | Manchester | A rating |
| ZEESHAN BUILDERS & DECORATORS LIMITED | Greenford, | A rating |
| ZEESHAN MUNIR TA LAHORE PIZZA & GRILL | Stoke On Trent | A rating |
| ZEESHAN SIDDIQUE PHOTOGRAPHY & FILMS LTD | Manchester | A rating |
| Zeest Trading Limited | Glasgow | A rating |
| ZEETEK ACCOUNTS & CONSULTANCY LTD | Essex | A rating |
| ZEF CONCEPTS LTD | Kingston Upon Thames | A rating |
| Zeferblatt Limited | Manchester | A rating |
| zeffirellis ltd | ambleside | A rating |
| Zefi Ground Works Limited | Shrewsbury | A rating |
| ZEG.ai Ltd | London | A rating |
| Zega Coffee | Kingston | A rating |
| Zeidler Legal Services (UK) Limited | London | A rating |
| ZEIN CATERING LIMITED | Leicester | A rating |
| ZEIN HEALTH LIMITED | SURREY | A rating |
| Zeina foods ltd | Ossett | A rating |
| Zelby Catering Limited | Sudbury | A rating |
| Zelig Sound Limited | London | A rating |
| Zelle International LLP | London | A rating |
| Zeller UK Limited | London | A rating |
| Zellis Holdings Ltd | Peterborough | A rating |
| Zeloof LLP | London | A rating |
| ZELP LTD | London | A rating |
| Zelt Ltd | London | A rating |
| ZEMA LIMITED | Sutton | A rating |
| Zema Services UK Limited | Altrincham | A rating |
| Zematra UK Ltd | Hull | A rating |
| Zemits UK Ltd | Epsom | A rating |
| Zempler Bank Limited | London | A rating |