Ye Olde Vigour Hotel
Cemaes LL67 0HH
Pub/bar/nightclub

Ysbyty Cefni Hospital
Llangefni LL77 7PP
Caring Premises

Ysbyty Penrhos Stanley Hospital
Holyhead LL65 2QA
Caring Premises

Ysgol Beaumaris
Beaumaris LL58 8HL
School/college/university

Ysgol Bryngwran
Bryngwran LL65 3PP
School/college/university

Ysgol Brynsiencyn
Brynsiencyn LL61 6HZ
School/college/university

Ysgol Cemaes
Cemaes Bay LL67 0LB
School/college/university

Ysgol Corn Hir
Llangefni LL77 7YW
School/college/university

Ysgol Cybi
Holyhead LL65 1NS
School/college/university

Ysgol Esceifiog
Gaerwen LL60 6DD
School/college/university

Ysgol Goronwy Owen
Tyn-y-Gongl LL74 8SG
School/college/university

Ysgol Gyfun Llangefni
Llangefni LL77 7NG
School/college/university

Ysgol Gymraeg Morswyn
Holyhead LL65 2PU
School/college/university

Ysgol Gymuned Llanerchymedd
Llanerchymedd LL71 8DP
School/college/university

Ysgol Gymuned Moelfre
Moelfre LL72 8NA
School/college/university

Ysgol Gymuned Rhosybol
Amlwch LL68 9PP
School/college/university

Ysgol Gymuned y Fali
Valley LL65 3EU
School/college/university

Ysgol Gynradd Amlwch
Amlwch LL68 9DY
School/college/university

Ysgol Gynradd Bodedern
Holyhead LL65 3TU
School/college/university

Ysgol Gynradd Bodffordd
Llangefni LL77 7LZ
School/college/university

Ysgol Henblas
Bodorgan LL62 5DR
School/college/university

Ysgol Kingsland
Holyhead LL65 2TH
School/college/university

Ysgol Llanbedrgoch
Llanbedrgoch LL76 8SX
School/college/university

Ysgol Llandegfan
Llandegfan LL59 5UW
School/college/university

Ysgol Llanfairpwllgwyngyll
Llanfairpwllgwyngyll LL61 5TX
School/college/university

Ysgol Llanfawr
Holyhead LL65 2DS
School/college/university

Ysgol Llanfechell
Carreglefn LL68 0SA
School/college/university

Ysgol Llangoed
Beaumaris LL58 8SA
School/college/university

Ysgol Parc Y Bont
Gaerwen LL60 6HB
School/college/university

Ysgol Pencarnisiog
Ty Croes LL63 5RY
School/college/university

Ysgol Pentraeth
Pentraeth LL75 8UP
School/college/university

Ysgol Penysarn
Pen-y-sarn LL69 9AZ
School/college/university

Ysgol Rhoscolyn
Holyhead LL65 2DX
School/college/university

Ysgol Rhosneigr
Rhosneigr LL64 5XA
School/college/university

Ysgol Rhyd Y Llan
Holyhead LL65 4PQ
School/college/university

Ysgol Santes Dwynwen
Llanfairpwllgwyngyll LL61 6AE
School/college/university

Ysgol Santes Fair
Holyhead LL65 1TR
School/college/university

Ysgol Syr Thomas Jones
Amlwch LL68 9TH
School/college/university

Ysgol Uwchradd Bodedern
Bodedern LL65 3SU
School/college/university

Ysgol Uwchradd Caergybi
Holyhead LL65 1NL
School/college/university

Ysgol Uwchradd David Hughes
Menai Bridge LL59 5SS
School/college/university

Ysgol y Borth
Menai Bridge LL59 5DS
School/college/university

Ysgol y Ffridd
Gwalchmai LL65 4SG
School/college/university

Ysgol y Graig
Llangefni LL77 7LE
School/college/university

Ysgol y Tywyn
Holyhead LL65 3LW
School/college/university

Zapatismo
Holyhead LL65 4AR
Mobile caterer

Zing Dressings
Menai Bridge LL59 5HS
Manufacturers/packers