| ZICDEL LTD | 07651902 | Blackheath | 31 May 2011 | Not in the latest register snapshot (dissolved or removed) |
| YORKSHIRE MEDICAL ACCOUNTANTS LLP | OC365072 | Leeds | 31 May 2011 | Active |
| YELLOW BALL LTD | 07651864 | London | 31 May 2011 | Active |
| YARDSTONE TRADE L.P. | SL009019 | Edinburgh | 31 May 2011 | Active |
| WRB FIRE & SECURITY LTD | SC400565 | Dundee | 31 May 2011 | Active |
| WORLD BRIEFING LIMITED | 07652804 | Reigate | 31 May 2011 | Active |
| WORKING NUMBERS LIMITED | 07652174 | Reading | 31 May 2011 | Active |
| WOODWARDS INTERIORS LIMITED | 07652604 | Bicester | 31 May 2011 | Active |
| WOODS OF LONDON LIMITED | 07651059 | London | 31 May 2011 | Active |
| WINSTON FINANCIAL MANAGEMENT LLP | OC365073 | Leeds | 31 May 2011 | Active |
| WILLOWBROOK CONSULTANTS LIMITED | 07651721 | Henley-In-Arden | 31 May 2011 | Active |
| WILLOW PRE-SCHOOL (WEST BRIDGFORD) C.I.C. | 07652710 | Nottingham | 31 May 2011 | Active |
| WILLOW HILL SOLUTIONS LTD | 07651794 | Bristol | 31 May 2011 | Active - Proposal to Strike off |
| WELSUMMER LIMITED | 07650912 | St Ives | 31 May 2011 | Active |
| WEBFACED LTD | 07652168 | West Lavington | 31 May 2011 | Active |
| WEBCREATING LTD | 07651776 | London | 31 May 2011 | Active |
| WATERMILL KITCHENS LIMITED | 07651479 | Liskeard | 31 May 2011 | Active |
| WALLACE MANAGEMENT (UK) LTD | 07651118 | London | 31 May 2011 | Active - Proposal to Strike off |
| WADDINGTON & LEDGER GROUP LIMITED | 07652863 | Halifax | 31 May 2011 | Active |
| VOICEMAILME LIMITED | 07652377 | London | 31 May 2011 | Active |
| VM AGENCIES LIMITED | 07650990 | Salcombe | 31 May 2011 | Active |
| VISTA STUDIOS LTD | 07652636 | London | 31 May 2011 | Active |
| VILLKENS KENNELS LTD | 07652753 | Stoke Hammond | 31 May 2011 | Active |
| VENTBERG L.P. | SL009020 | Edinburgh | 31 May 2011 | Active |
| VEGGI FASHION LTD | 07652128 | London | 31 May 2011 | Active |
| VARELSE LTD | 07651685 | Northolt | 31 May 2011 | Active |
| VANDERSON LIMITED | 07651971 | London | 31 May 2011 | Active |
| UNIVERSAL EXPERTS CONSULTING LIMITED | 07652020 | Harrogate | 31 May 2011 | Active |
| UNITED PRINTING LIMITED | 07651495 | Cambridge | 31 May 2011 | Active |
| UMOYA MANDLA LIMITED | 07651291 | Stockbridge | 31 May 2011 | Active |
| UK TUITION GUARDIANS LIMITED | 07652485 | London | 31 May 2011 | Active |
| UCS DESIGN GROUP LIMITED | NI607632 | Belfast | 31 May 2011 | Active |
| TSI SNOWSPORTS LIMITED | 07651245 | High Wycombe | 31 May 2011 | Active |
| TRUCKMIXER (U.K.) LIMITED | 07652394 | Wisbech | 31 May 2011 | Active |
| TREWIRGIE JUNIOR SCHOOL | 07652476 | Redruth | 31 May 2011 | Active |
| TRANQUILITY PARKS LIMITED | 07652841 | London | 31 May 2011 | Active |
| TRAINING MATTERS (DORSET) LIMITED | 07652828 | Bournemouth | 31 May 2011 | Active |
| TOUCHSTONE MASONRY LTD | 07652308 | Bath | 31 May 2011 | Active |
| TONA CONSTRUCTION LTD | NI607653 | Omagh | 31 May 2011 | Active - Proposal to Strike off |
| TOM ODELL LTD | 07652044 | London | 31 May 2011 | Active |
| TOM FAULKNER LIMITED | 07652676 | Aldermaston | 31 May 2011 | Active |
| TM-XS UNDERWATER ADVENTURES LTD | SC400556 | Aberfeldy | 31 May 2011 | Active |
| TIMPAS LTD | 07652680 | Batley | 31 May 2011 | Active |
| TIMERYDER PRODUCTIONS LTD | 07651640 | West Drayton | 31 May 2011 | Active |
| TILLBURN LIMITED | NI607623 | Cookstown | 31 May 2011 | Active |
| TIKI-TAKA LIMITED | 07650923 | London | 31 May 2011 | Active |
| THE SHEFFIELD UTC ACADEMY TRUST | 07652696 | Sheffield | 31 May 2011 | Active |
| THE REPLACE BASE LTD | 07651978 | London | 31 May 2011 | Active |
| THE PRIMARY LEARNING CENTRE LTD | 07652667 | Cardiff | 31 May 2011 | Active - Proposal to Strike off |
| THE PEOPLE SIDE LIMITED | 07652130 | Ross on Wye | 31 May 2011 | Active |