| Your Safe Homecare Ltd | Leeds | A rating |
| Your Serenity Limited | Berkshire | A rating |
| Your Shop | Kent | A rating |
| YOUR SHOP LTD | LONDON | A rating |
| Your Shortlist | Glasgow | A rating |
| Your Store-Costcutter | Holmewood | A rating |
| Your Story PR Limited | London | A rating |
| Your Studio Ltd | London | A rating |
| Your Support Services Ltd | BIRMINGHAM | A rating |
| Your Talent Solutions Ltd | Wickwar | A rating |
| Your Trip Mate UK Ltd | London | A rating |
| Your Village Store | Stirlingshire | A rating |
| Your Voice in Health & Social Care | Ealing | A rating |
| YOUR WELLNESS LIMITED | EASTBOURNE | A rating |
| YourCare Support | Andover | A rating |
| YourCare24 Ltd | SHEFFIELD | A rating |
| YOURFITTINGROOM LTD | London | A rating |
| YOURGATEWAY2SUCCESS | CROYDON | A rating |
| YOURgb Events Ltd | Edinburgh | A rating |
| Yourgene Health UK Ltd | Manchester | A rating |
| YOURGOLFBOOKING.COM LTD | Aylesbury | A rating |
| YOURHOLIDAYBOOKING.COM LTD ( VERTICAL GROUP) | BASILDON | A rating |
| Yourkeys Technology Limited | London | A rating |
| Yourparkingspace Ltd | London | A rating |
| YourPlumber Limited | Bournemouth | A rating |
| Yourrepair | Stoke On Trent | A rating |
| Yours Link Limited | London | A rating |
| Yours Local Limited | Portsmouth | A rating |
| Yours Mine Ours Ltd | London | A rating |
| YOURSTAFF RECRUITMENT LIMITED | West Sussex | A rating |
| YOURUI INTERNATIONAL LTD | Leeds | A rating |
| YOURWAY TRANSPORT LTD | HOUNSLOW | A rating |
| Yousaf HMC Limited | Thornton Heath | A rating |
| Yousaf Jewellers Limited | Birmingham | A rating |
| YOUSAF RELIGIOUS TOURS LTD TA YR TOURS | LUTON | A rating |
| YOUSAF SUPERMARKET LTD | Birmingham | A rating |
| YouSeq Ltd | Winchester | A rating |
| YOUSHAH PERFUME & VAPES LTD | BIRMINGHAM | A rating |
| YOUSHAH PERFUME LTD | Birmingham | A rating |
| Youth And Women Education Trust | Birmingham | A rating |
| Youth Experience in Sport | London | A rating |
| Youth for Christ Northern Ireland Limited | Belfast | A rating |
| Youth Futures Foundation | London | A rating |
| YOUTH HAVEN LTD | Manchester | A rating |
| Youth Initiatives | Belfast | A rating |
| Youth League (UK) Ltd | Dagenham | A rating |
| YOUTH MATTERS LIMITED | Coventry | A rating |
| Youth Matters New Mills CIC | HIGH PEAK | A rating |
| Youth Ministry Trust | Consett | A rating |
| Youth Model Management Ltd. | London | A rating |
| YOUTH PROJECTS INTERNATIONAL | Maidstone | A rating |
| Youth PWR Charity | Croydon | A rating |
| YOUTH REALITY HOMES LTD | London | A rating |
| Youth With A Mission (NI) ltd | Rostrevor | A rating |
| Youth With A Mission Harpenden Ltd | Harpenden | A rating |
| Youth With A Mission Ltd | Nuneaton | A rating |
| Youth With a Mission Scotland Ltd | West Kilbride | A rating |
| YouthAction NI | Belfast | A rating |
| Youthscape Ltd | Luton | A rating |
| Youthstar (W) Ltd | Bury | A rating |
| Youtility Solutions Private Limited | London | A rating |
| Youtu Overseas Education Consultancy Ltd | Manchester | A rating |
| YouView TV Ltd | London | A rating |
| Youvision Theatre Ltd | London | A rating |
| Youwe UK Ltd | Leeds | A rating |
| Yovant Ltd | Harrow | A rating |
| YOYO BUBBLE LTD | London | A rating |
| YP Group Ltd | Warrington | A rating |
| Yparho Ltd T/A Best Western London Highbury Hotel | London | A rating |
| YPDA Aberdeen Limited | Forfar | A rating |
| YPDP Ltd | Wetherby | A rating |
| YPG Leisure Ltd t/a Raja Monkey | Birmingham | A rating |
| YPMUK Limited | Bradford | A rating |
| YPP Lettings & Management Company Limited | Leeds | A rating |
| YPRK EASTCOTE LTD T/A YAPRAK EASTCOTE | Pinner | A rating |
| YPS TRADING LIMITED T/A SUBWAY | Chatham | A rating |
| YR Restaurant Ltd | Bracknell | A rating |
| YRF Associates Ltd | BOLTON | A rating |
| Yrs Retail Ltd | Castleford | A rating |
| YRS TRULY LTD | London | A rating |
| YRS1985 LTD T/A ANNAPURNA GURKHA | Kirkcaldy | A rating |
| YS ACCOUNTANTS LTD | Wembley | A rating |
| YS CAMBRIDGE CONSULTING & SERVICE LTD | Dartford | A rating |
| YS CHEN LIMITED | Guildford | A rating |
| YS ENTERPRISE LTD | Aberdeen | A rating |
| YS Retails Ltd | Sittingbourne | A rating |
| YS Service Station Ltd | Worcestershire | A rating |
| YSA Logistics Ltd | London | A rating |
| YSD BUSINESS RETAIL LTD T/A Yogi News | South Norwood | A rating |
| YSD Logistics Limited | Feltham | A rating |
| YSL CONSTRUCTION LIMITED | London | A rating |
| YSN LETTINGS LIMITED | Portsmouth | A rating |
| Ysoma Logistics Ltd | Sunbury-On-Thames | A rating |
| Ystwyth Medical Group | Aberystwyth | A rating |
| Ystwyth Veterinary Practice | Aberystywth | A rating |
| YT International Student Ltd | Portsmouth | A rating |
| YT-INDUSTRIES UK LTD | Guildford | A rating |
| YTHS RETAIL LTD | Whitchurch | A rating |
| YTL Construction (UK) Ltd | Bath | A rating |
| YTL Developments (UK) Limited | Bath | A rating |
| Yu and Sun Limited | Bedford | A rating |
| Yu Energy Retail Limited | Nottingham | A rating |
| YU LIFE LTD | LONDON | A rating |
| Yu Xiang Limited | Chester | A rating |
| Yuan Zhen UK Investment Ltd | LONDON | A rating |
| Yuanda (UK) Co. Ltd | London | A rating |
| Yuanfang Ltd | London | A rating |
| YUANXIN LIMITED | London | A rating |
| YUCA ENERGY LIMITED | Kettering | A rating |
| Yuchi Beauty Limited | Kent | A rating |
| Yudo UK | Ross-on-Wye | A rating |
| YUDUCO LONDON LTD | London | A rating |
| Yug & Yagn Ltd | Pinner | A rating |
| Yugan Ltd | Middlesbrough | A rating |
| YUGO CREATIONS LTD | Belfast | A rating |
| YUGO STUDENTS (UK) LIMITED | Bristol | A rating |
| YUHEI LTD | LONDON | A rating |
| Yujin Trading Limited | Worcester Park | A rating |
| Yuken Europe Ltd | Liverpool | A rating |
| Yukon Foods LTD | Cwmbran | A rating |
| Yum Enterprise Ltd | Prestonpans | A rating |
| Yum Food London Ltd T/A Royal | London | A rating |
| YUM RESTAURANT GROUP LIMITED | London | A rating |
| Yum Street Catering Limited | Southampton | A rating |
| Yum Thai LTD | Bushey | A rating |
| Yum Yum Chicken & Kebab Ltd | Rochdale | A rating |
| Yum Yum Thai Restaurants Ltd | London | A rating |
| YUM! III (UK) LIMITED | St Albans | A rating |
| Yuma Creations Ltd. t/a Tehran Berlin formerly The Drunken Butler | London | A rating |
| Yuma Sushi Limited | London | A rating |
| Yumchop Foods Limited | Nuneaton | A rating |
| YUME FOOD GROUP LTD | England | A rating |
| YUME SUSHI LTD | London | A rating |
| Yumi Yumi Limited | St. Neots | A rating |
| Yumilicious Ltd | Chigwell | A rating |
| Yummie's Fast Food Supplies Limited | Newport | A rating |
| Yummy Karachi Food Limited T/A Biryani Guys | London | A rating |
| Yummy Chicken and Pizza Ltd | Sutton in Ashfield | A rating |
| YUMMY DOSA LTD T/A YUMMY DOSA | ILFORD | A rating |
| YUMMY GYROS LTD T/A HUNGRILL | Cambridge | A rating |
| Yummy Karachi Food Limited T/A Biryani Guys | London | A rating |
| Yummy Kitchen (M) Limited | London | A rating |
| YUMMY PIZZA STAR LTD | BRIGHTON | A rating |
| YUMMY ZAIKA LTD T/A KARAHI WOK | SALFORD | A rating |
| YUMMY'S FOOD LTD | London | A rating |
| YUMMYZ MANCHESTER LTD | Manchester | A rating |
| Yumpingo Ltd. | London | A rating |
| YUMTEA LTD | London | A rating |
| Yumway Ltd T/A Happy View | Norwich | A rating |
| YUN FENG FOODS LTD | SOUTHWICK | A rating |
| YUN LU WU YOU LTD | London | A rating |
| Yunex Limited | Christchurch | A rating |
| YUNEXPRESS UK LTD | Derby | A rating |
| YUNFEI LIMITED | Tiptree | A rating |
| YunikuLondon Limited | Wokingham | A rating |
| YUNNAN DANWEI CATERING (UK) LIMITED | London | UK Expansion Worker: Provisional |
| Yunshang (UK) Ltd | Enfield | A rating |
| Yupana Systems Limited | London | A rating |
| Yura Corporation UK Ltd | Lutterworth | A rating |
| Yusen Logistics (UK) Ltd | Northampton | A rating |
| Yushi Limited | London | A rating |
| Yushin Automation Limited | Bromsgrove | A rating |
| YUSHU CULTURE DEVELOPMENT UK LTD | Oxford | A rating |
| Yusuf Patel | Leeds | A rating |
| Yuv Beauty UK Limited | London | A rating |
| Yuvaa Ltd | Alloa | A rating |
| YUVI PRIVATE LIMITED T/A BISHOP SUTTON STORES & POST OFFICE | Bristol | A rating |
| Yuvi Private Limited T/A Oldland Common Post Office | Bristol | A rating |
| Yuvraj International Ltd | Southall | A rating |
| Yuyuki Enterprise Ltd | London | A rating |
| YUZAN INDUSTRIAL TRADE CO. LTD | London | A rating |
| Yuzu Tech Ltd | Bristol | A rating |
| YVR TECHNOLOGIES LTD | HAINAULT | A rating |
| YVS ENTERPRISES LIMITED | London | A rating |
| YWIS Technology | Colchester | A rating |
| YXO Studios Limited | Bristol | A rating |
| YY LIN LIMITED | Leatherhead | A rating |
| YY-PMC PROJECT MANAGEMENT CONSULTING LTD | LONDON | A rating |
| YYQM LIMITED | London | A rating |
| YYR CONSULTANCY LTD | London | A rating |
| YYUK TRADING LIMITED | Liverpool | A rating |
| YZ CONNECTION LIMITED | London | A rating |