Puw has received commissions from (amongst others) BBC Radio 3, the Welsh baritone Jeremy Huw Williams, the Bangor New Music Festival and the North Wales International Music Festival. He was appointed the first Resident Composer with BBC National Orchestra of Wales (BBC NOW) in 2006 and held this position until 2010. During this time, Puw wrote a concerto for oboe (premiered in 2006) and an orchestral piece, "... onyt agoraf y drws ...", which was first performed to critical acclaim at the 2007 Proms.