WUOTC is one of the largest OTC contingents in the UK with bases in five locations: Cardiff, Swansea, Bangor, Aberystwyth and Wrexham.

These Companies come together for military training exercises and social events. Each location trains on a Tuesday night and the bar in the Officers' Mess is open after training and as a jumping off point for a night on the town.

Aberystwyth

Aberystwyth Company is drawn from University of Wales Aberystwyth and University of Wales, Lampeter.
Training is held at:
TA Centre,
Park Avenue,
ABERYSTWYTH,
Ceredigion,
SY23 1PG.

Bangor

Bangor Company is drawn from the University of Wales, Bangor.
Training is held at:
The Barracks,
Llanberis Road,
CAERNARFON,
LL55 2DD.
(Transport will be laid on from Bangor to Caernarfon every Tuesday.)

Cardiff

Cardiff Company is drawn from Cardiff University; University of Wales Institute Cardiff; University of Glamorgan and the University of Wales College, Newport.
Training is held at:
Ty Richard Wain,
Maindy Barracks,
Whitchurch Road,
CARDIFF,
CF14 3YE.

Swansea

Swansea Company is drawn from Swansea University, Swansea Metropolitan University and Trinity College Carmarthen.
Training is held at:
John Chard VC House,
Glamorgan Street,
SWANSEA,
SA1 3SY.

Wrexham

Wrexham Company is drawn from Glyndwr University and the University of Chester.
Training is held at:
Hightown Barracks,
WREXHAM,
LL13 8RD