The 13-year-old landed a deal with Epic last July after finishing second on the fifth series of Simon Cowell's ITV show.
However, a spokesperson for Parke has told Metro that the singer was the one that made the decision, after wanting to go in a "different direction" last month, and has now parted ways with the label.
Parke released just one album during his time with Epic, a self-titled record that peaked at 22 on the UK charts upon its release in October.
The sole single from his LP, a cover of Vanessa Carlton's 'A Thousand Miles', failed to chart.
Parke was signed before last year's Britain's Got Talent winner Jai McDowall landed his own deal last August. The Scottish singer was also dropped by Cowell in March.
> Ronan Parke interview: 'This year feels unreal'
Watch Ronan Parke in the video for 'A Thousand Miles' below: