| ZAHARA SYSTEMS LTD | 10845313 | Bath | 30 June 2017 | Active |
| ZAH TRADING LTD | 10845385 | Morden | 30 June 2017 | Active |
| YOUSUF CHARITABLE TRUST | CE011191 | | 30 June 2017 | Active |
| YOUNG BLACK LIMITED | SC570129 | Glasgow | 30 June 2017 | Active |
| YOUELLINE DESIGN SERVICES LIMITED | 10843585 | Windsor | 30 June 2017 | Active |
| YORK GLIDING CENTRE (OPERATIONS) LTD | 10843735 | York | 30 June 2017 | Active |
| YGB ESTATES LTD | 10844138 | Salford | 30 June 2017 | Active |
| YEWA DESCENDANTS UNION UK | CE011184 | | 30 June 2017 | Active |
| YELLOW NOSE LIMITED | SC570131 | Glasgow | 30 June 2017 | Active - Proposal to Strike off |
| YAFA SUPERMARKET WHOLESALE LIMITED | 10844167 | Birmingham | 30 June 2017 | Active - Proposal to Strike off |
| XTREME VORTEX LIMITED | 10843745 | Dartford | 30 June 2017 | Active |
| XTCS (NW) LTD | 10843449 | Rhyl | 30 June 2017 | Active - Proposal to Strike off |
| WUNDERTALENT LIMITED | 10843384 | Manchester | 30 June 2017 | Active |
| WS3 SECURITY SYSTEMS LTD | 10844674 | Walsall | 30 June 2017 | Active |
| WS ESTATE SERVICES LIMITED | SC570143 | Glasgow | 30 June 2017 | Active |
| WP SERVICES HOLDINGS LIMITED | 10845538 | Southampton | 30 June 2017 | Active |
| WOW AMUSEMENTS LIMITED | 10845037 | London | 30 June 2017 | Active |
| WORRALL OFFSHORE LTD | 10844188 | Peterlee | 30 June 2017 | Active |
| WORLD WHEEL COMPANY (NEWCASTLE) LIMITED | 10843763 | Newcastle upon Tyne | 30 June 2017 | Active |
| WONDERSEARCH LTD | 10843989 | Altrincham | 30 June 2017 | Active |
| WOLFTHORN KNIGHT LTD. | 10845307 | Iver | 30 June 2017 | Active |
| WOKTOWALK ST MARY LTD | 10845114 | Cardiff | 30 June 2017 | Active |
| WOK ON LTD | 10843510 | Liverpool | 30 June 2017 | Active - Proposal to Strike off |
| WM NEWS AND FOOD LTD | 10843588 | Peterborough | 30 June 2017 | Active |
| WINDSOR FINANCIAL SERVICES LTD | 10843042 | Windsor | 30 June 2017 | Active |
| WINCHESTER AND DISTRICT BRANCH OF SAMARITANS | CE011188 | | 30 June 2017 | Active |
| WILSON FORMWORK LIMITED | NI646704 | Ballymoney | 30 June 2017 | Active - Proposal to Strike off |
| WILSON & WEBB LTD | 10845132 | Sutton Coldfield | 30 June 2017 | Active |
| WILLIAM GEORGE SAND & GRAVEL LIMITED | 10845251 | King's Lynn | 30 June 2017 | Active |
| WILL BEGG CARPENTRY & BUILDING SERVICES LTD | 10844688 | Swansea | 30 June 2017 | Active |
| WIBBLE WOBBLES MESSY PLAY LIMITED | 10844797 | Haslemere | 30 June 2017 | Not in the latest register snapshot (dissolved or removed) |
| WHITESTILE 1 LIMITED | 10844113 | London | 30 June 2017 | Active |
| WFD LIMITED | 10843373 | Leeds | 30 June 2017 | Active |
| WESTWOOD PLUMBING & HEATING LIMITED | 10843860 | Beverley | 30 June 2017 | Active |
| WESTCLIFF INVESTMENTS LIMITED | 10844687 | Leigh-On-Sea | 30 June 2017 | Active |
| WESTBOURNE DESIGN LIMITED | 10844620 | Wokingham | 30 June 2017 | Active |
| WEST MIDLANDS DIGITAL LTD | 10844767 | Stafford | 30 June 2017 | Active |
| WES PRODUCTS LIMITED | 10843293 | Basingstoke | 30 June 2017 | Active |
| WELLCOMM HEALTH & FITNESS LIMITED | 10844432 | Nottingham | 30 June 2017 | Liquidation |
| WELINK ENERGY PORTUGAL (UK) LIMITED | 10844587 | Cardiff | 30 June 2017 | Active - Proposal to Strike off |
| WELCOME CARE LIMITED | 10843756 | Bedworth | 30 June 2017 | Active |
| WELBECK CLARK LIMITED | 10843331 | Pinner | 30 June 2017 | Active |
| WEE ALPHA LTD | SC570171 | Motherwell | 30 June 2017 | Active |
| WE ARE REBRAND LTD | 10843762 | Cardiff | 30 June 2017 | Active - Proposal to Strike off |
| WE ARE COLLIDER LIMITED | 10843499 | Brackley | 30 June 2017 | Active |
| WATKINS BROTHERS LTD | 10844870 | Barnsley | 30 June 2017 | Active |
| WASH CYCLE LTD | 10844355 | Cardiff | 30 June 2017 | Active |
| WARWICK PROPERTIES LLP | OC417991 | Liverpool | 30 June 2017 | Active |
| WARWICK ALUMINIUM LTD | 10844570 | Liverpool | 30 June 2017 | Active |
| WARM & COSY FIRES LTD | 10843415 | Bradford | 30 June 2017 | Liquidation |