| 4876466 | Young Pulham Market Ltd | Pulham Market Hall, Pulham Market, Diss, Norfolk, IP21 4XF, UK | IP21 4XF | youngpm@itsadsl.net | John Young | — | — | |
| 4197394 | Yorkshire Septics | 5 Hull Road, Kexby, York, YO41 5LA | YO19 5LA | elliott.king@yorkshireseptics.co.uk | Elliot King | — | — | |
| 3981079 | Zaixing Huang | 16 Langdykes Way, Cove Bay, Aberdeen AB12 3HG, UK | AB12 3HG | tomhuanguk@gmail.com | Zaixing Huang | — | — | |
| 3492743 | Zoe Bennett, Plas Cwmllecoadiag (E1039) | Plas Cwmllecoediog, Aberangell, Machynlleth, Powys, SY20 9QP | SY20 9QP | greverus@aol.com | Zoe Bennett | | — | |
| 3492737 | Yewtree Lodge Staffs (A1036) | Morrey, Yoxall, Burton-on-Trent DE13 8PE, UK | DE13 8PE | sa_baker@hotmail.co.uk | Mrs Baker | | — | |
| 9773031 | Wrigleys Hay Barn (A1567) | Agden Lane, Lymm, WA13 0UQ | WA13 0UQ | leahnwelsh@outlook.com | Leah Welsh | — | — | |
| 8096908 | Xtend2 Limited | Thirlby, Thirsk YO7 2EA, UK | YO7 2EA | gerald@cinqucliffe.co.uk | Gerald Lawson-Tancred | | — | |
| 7885189 | Wymers | Plums Ln, Bardfield Saling, Braintree CM7 5EH, UK | CM7 5EH | cockertonian@gmail.com | Ian Cockerton | | — | |
| 7441449 | Yew Tree Farm | Yew Tree Farm, Press, Tupton, Chesterfield S42 6AZ, UK | S42 | — | Mark Marriott | — | — | |
| 7433503 | Yew Tree Barn, ST21 6JF | Yew Tree Barn, Wootton Lane, Eccleshall, Stafford, Staffordshire, ST21 6JF | ST21 6JF | drkeithnixon@hotmail.co.uk | Keith Nixon | | — | |
| 7422818 | Y Derwen | Y Derwen, Pontdolgoch, Caersws, Powys, SY17 5NJ | SY17 5NJ | dharvey595@gmail.com | David Harvey | | — | |
| 7154775 | Wrangcombe Cottage | Wrangcombe Cottage, Wrangcombe Lane, Wellington, Somerset, TA21 9QQ | TA21 9QF | nigelriddle@hotmail.co.uk | Nigel Riddle | | — | |
| 6992530 | Yew Tree Cottage, WN8 6SE | Yew Tree Cottage, 96 Elmers Green, Skelmersdale, Lancashire, WN8 6SE | WN8 6SE | glynscragg@yahoo.co.uk | Glyn Scragg | | — | |
| 6963039 | Yew Tree Barn, NG23 6JE | Yew Tree Barn, Great North Road, Cromwell, Newark, Nottinghamshire, NG23 6JE | NG23 6JE | david@davidknibbs.com | David Knibbs | | — | |
| 6791840 | Yew Tree Cottage, Hinwood | Westbury, Shrewsbury SY5 9PD, UK | SY5 9PD | sdpthehem@aol.com | Steven Jones | | — | |
| 6002272 | Wyld and Creative | Burnham, Slough SL1 8NF, UK | SL1 8NF | wayne@wyldandcreative.co.uk | Wayne Wyld | — | — | |
| 5989761 | Yeos Farm | Yeos Farm, Dunchideock, Exeter, EX2 9UJ | EX2 9UJ | YEOSFARM@GMAIL.COM | Janet Leg | | — | |
| 5921252 | Wyre Drainage | 4 Attwood Close, Wolverley, Kidderminster, Worcestershire, DY11 5AF, UK | DY11 5AF | chris@wyredrainage.co.uk | Chris Bevan | — | — | |
| 5497986 | Wyming Brook Farm | Wyming Brook Farm, Soughley Lane, Sheffield, S10 4QX | S10 4QX | — | Steve Mills | | — | |
| 5405112 | Wrekin Drain Services | Barn 2, Bratton Hall Farm, Bratton Rd, Bratton, Telford TF5 0BX, UK | TF5 0BX | greg@wrekindrains.co.uk | Greg Owen | | — | |
| 5276219 | Y International Ltd - NS | 1 Priory Road, Aston, Birmingham, West Midlands, B6 7LG | B6 7LG | darren.elliott@yinternational.uk | Darren Elliott | — | — | |
| 4873127 | Wren Croft - C1235 | Wren Croft, Studholme, Kirkbride, Wigton CA7 5ER, UK | CA7 5ER | matthewthomlinson@hotmail.com | Matthew Thomlinson NO LONGER LIVES HERE NOV 25 | — | — | |
| 4657620 | Yesss Electrical | Foxbridge Way, Castleford, Normanton, WF6 1TW, UK | WF6 1TW | darren.smith2@yesss.co.uk | Glenn Paffett | | — | |
| 3649442 | Wynot | Southampton SO40 2HD, UK | SO40 2HD | — | Darren Rider | | — | |
| 3492733 | Yew Tree Cottage (A1138) | Draycott in the Clay, Ashbourne DE6 5BT, UK | DE6 5BT | marcus.higgins@naismiths.com | Marcus Higgins | — | — | |