| JAMES STARKIE & SONS LIMITED | 00064828 | Stockport | 20 January 1900 | Active |
| BALTIC EXCHANGE LIMITED(THE) | 00064795 | London | 17 January 1900 | Active |
| GRANT,BARNETT & COMPANY,LIMITED | 00064757 | Bishop's Stortford | 12 January 1900 | Active |
| ST HELENS EDUCATION TRUST | 00064740 | St Helens | 10 January 1900 | Active |
| W.& H.MIERS,LIMITED | 00064715 | Leeds | 6 January 1900 | Active |
| K & J HOLDINGS LIMITED | 00064711 | 19 Cornwall Street | 6 January 1900 | Liquidation |
| WM HARDILL SONS & CO LIMITED | 00064693 | Batley | 4 January 1900 | Active |
| ROYAL BRITISH LEGION CLUB CORSHAM LIMITED | RS09788R | | 1 January 1900 | Active |
| ZURICH SPECIALTIES LONDON LIMITED | AC001641 | | 1 January 1900 | Active |
| ZURICH ASSURANCE (2004) PLC | AC001783 | | 1 January 1900 | Active |
| ZINGARI CLUB AND INSTITUTE LIMITED | RS07731R | | 1 January 1900 | Active |
| YSTRAD MYNACH NON-POLITICAL SOCIAL CLUB AND INSTITUTE LIMITED | RS10730R | | 1 January 1900 | Active |
| YORKSHIRE MOUNTAINEERING CLUB LIMITED | IP30036R | | 1 January 1900 | Active |
| YORKSHIRE FRIENDS' HOUSING SOCIETY LIMITED | RS13214R | | 1 January 1900 | Active |
| YORKSHIRE FORESTERS' CONVALESCENT HOME | RS0081EN | | 1 January 1900 | Active |
| YORKSHIRE CLARION CLUBHOUSE LIMITED | RS04677R | | 1 January 1900 | Active |
| YORK CREDIT UNION LIMITED | IP00728C | | 1 January 1900 | Active |
| YORK CLARENCE CLUB AND INSTITUTE LIMITED | RS07051R | | 1 January 1900 | Active |
| YNYSHIR AND DISTRICT WORKMEN'S CLUB AND INSTITUTE LIMITED | RS07649R | | 1 January 1900 | Active |
| YIEWSLEY AND WEST DRAYTON IVY LEAF MEMORIAL CLUB LIMITED | RS09089R | | 1 January 1900 | Active |
| YESHURUN SYNAGOGUE BURIAL SOCIETY | RS0216SA | | 1 January 1900 | Active |
| YEOVIL LABOUR INSTITUTE SOCIETY LIMITED | RS06963R | | 1 January 1900 | Active |
| YEOVIL LABOUR CLUB LIMITED | RS011549 | | 1 January 1900 | Active |
| YEOVIL EX-SERVICES AND SOCIAL CLUB LIMITED | IP09202R | | 1 January 1900 | Active |
| YE OLDE VILLAGE CLUB | RS01875W | | 1 January 1900 | Active |
| YARPOLE COMMUNITY SHOP ASSOCIATION LIMITED | IP29911R | | 1 January 1900 | Active |
| YARDIMCI NAKLIYAT VE TICARET A S | FC012606 | London | 1 January 1900 | Active |
| XL WINTERTHUR INTERNATIONAL INSURANCE COMPANY LIMITED | AC001592 | | 1 January 1900 | Active |
| XL SPECIALITY INSURANCE COMPANY | AC001715 | | 1 January 1900 | Active |
| XL RE LTD | AC001736 | | 1 January 1900 | Active |
| XL CAPITAL ASSURANCE (U.K.) LIMITED | AC001811 | | 1 January 1900 | Active |
| XANADU HOUSING CO-OPERATIVE LIMITED | IP28314R | | 1 January 1900 | Active |
| WYKE REGIS SOCIAL CLUB | RS00172F | | 1 January 1900 | Active |
| WYEDEAN HOUSING ASSOCIATION LIMITED | RS021318 | | 1 January 1900 | Active |
| WYE COMMUNITY FARM LIMITED | IP30276R | | 1 January 1900 | Active |
| WURTTEMBERGISCHE VERSICHERUNG AKTIENGESELLSCHAFT | AC001709 | | 1 January 1900 | Active |
| WROUGHTON CLUB | RS01475W | | 1 January 1900 | Active |
| WREXHAM FOOTBALL SUPPORTERS' SOCIETY LIMITED | IP29366R | | 1 January 1900 | Active |
| WREN INSURANCE ASSOCIATION LIMITED(THE) | AC001602 | | 1 January 1900 | Active |
| WRAYSBURY VILLAGE CLUB AND INSTITUTE | RS00044W | | 1 January 1900 | Active |
| WOTE STREET CLUB | RS00273W | | 1 January 1900 | Active |
| WORTLEY MEN'S CLUB AND INSTITUTE | RS002198 | | 1 January 1900 | Active |
| WORTH CPT LIMITED | IP30141R | | 1 January 1900 | Active |
| WORSLEY MESNES CLUB LIMITED | IP30341R | | 1 January 1900 | Active |
| WORSHIPFUL COMPANY OF SADDLERS | RC000748 | | 1 January 1900 | Active |
| WORLD WIDE REASSURANCE COMPANY | AC000941 | | 1 January 1900 | Active |
| WORCESTER R.F.C. LIMITED | IP29419R | | 1 January 1900 | Active |
| WOOLSTON SOCIAL CLUB | RS00265W | | 1 January 1900 | Active |
| WOOLFEST LIMITED | IP30407R | | 1 January 1900 | Active |
| WOODGREEN COMMUNITY SHOP ASSOCIATION LIMITED | IP30160R | | 1 January 1900 | Active |