Born in Church Village, and living in Ferndale. Tom attended Maerdy Comprehensive where he played rugby along with playing for his local side Ystrad Rhonnda.
Davies was spotted by Cardiff Blues coaches at U16 level and went on to spend two years with the U18s, during which the Blues won the championship both years. Davies had an international call up at both U18 and U20 level but sadly missed the 2011/12 Rugby World Cup due to a shoulder operation.
Tom Davies made his debut for the Blues in the LV= Cup against Newcastle Falcons in 2011. Davies has made seven appearances for the Blues.