| | PR Agency Name | Location |  |  |  |  |
 | Accord PR | .Birch House Business Centre
Hen Lon Parcwr
Ruthin, [Denbighshire] [North Wales] [Wales] | |  |  |  |
 | Andy Pearson Publicity | .Media House, 5 Ffordd Taliesin, Killay, Swansea, [Swansea] [Mid and West Wales] [Wales] | |  |  | |
 | Anne Keeling Public Relations | .17 Rectory Close,Wenvoe,Cardiff,South Glamorgan [Vale of Glamorgan] [South Wales] [Wales] | | | | |
 | Apex PR | .33 Hillside Court, Holywell, Flintshire [Flintshire] [North Wales] [Wales] | | | | |
 | Apex PR | .33 Hillside Ct, Holywell. [Flintshire] [North Wales] [Wales] | | | | |
 | Atom | .Victoria Dock, Caernarfon, Gwynedd [Gwynedd] [North Wales] [Wales] | |  | | |
 | Bird in Hand | .Heol Morlais, Trimsaran, Kidwelly, Dyfed [Carmarthenshire] [Mid and West Wales] [Wales] | | | | |
 | Blue Creative Development (Pembrokeshire Trading Company Ltd) | .Crosshands, Narberth [Pembrokeshire] [Mid and West Wales] [Wales] | | | | |
 | Bob Clough-Parker Organisation | .P.O Box 235Chester,Cheshire [Flintshire] [North Wales] [Wales] | | | | |
 | Cambrensis | .Uned C2 GaleriVictoria Dock,Caernarfon,Gwynedd [Gwynedd] [North Wales] [Wales] | | | | |
 | CAMBRENSIS COMMUNICATIONS | .7 Romilly Crescent
Canton
Cardiff [South Glamorgan] [South Wales] [Wales] | |  | | |
 | Cambrensis Communications | .7 Romilly Crescent,Cardiff,South Glamorgan [South Glamorgan] [South Wales] [Wales] | | | | |
 | CAMBRENSIS COMMUNICATIONS | .Galeri,Victoria Dock,Caernarfon, [Gwynedd] [North Wales] [Wales] | |  | | |
 | Campaign Promotions | .The Coal ExchangeThe Exchange, Mount Stuart Square,Cardiff,South Glamorgan [South Glamorgan] [South Wales] [Wales] | | | | |
 | Capsa Vox | .Stockwell House
Monksford Street
KIDWELLY
Carmarthenshire [Carmarthenshire] [Mid and West Wales] [Wales] | |  | | |
 | Ceidiog Communication | .40, Brookhouse Road,Denbigh,Clwyd [Denbighshire] [North Wales] [Wales] | |  | | |
 | Civitas Cymru | .11 Syr David's Avenue
Caerdydd / Cardiff [Vale of Glamorgan] [South Wales] [Wales] | |  | |  |
 | Civitas Cymru | .11, Syr Davids Avenue,Cardiff,South Glamorgan [Vale of Glamorgan] [South Wales] [Wales] | |  | | |
 | CnJ Associates Ltd | .12 Ffordd Thomas Gee, Denbigh, Clwyd [Denbighshire] [North Wales] [Wales] | |  | | |
 | Cohesive Communications Chepstow | .Conrad House, 1-2 Beaufort Square, Chepstow [Monmouthshire] [South Wales] [Wales] | |  |  | |