The 17-year-old broke into the Preston first-team earlier this season after scoring six goals in eight games for the youth team at Deepdale.
And his impressive performances for the senior sides have attracted Premier League scouts, with representatives from Manchester City, Arsenal, Liverpool, Tottenham, Stoke, Fulham, Southampton and Swansea making the trip to watch him in action.
And Brownhill is yet to sign a professional contract, which opens the door for one of the Premier League giants to poach him away from Preston for a compensatory fee.
But Cassius Management, the company that represents Brownhill, says he's happy playing first-team football at Preston.
A statement given to Sky Sports said: "Josh is very happy at Preston having made his debut and wants to repay the manager, club and fans for their faith in him.
"We will hold talks with the club over a professional deal for him and that is all we can say at the moment."
Brownhill was on Manchester United's academy books as a youngster, but never made the grade at Old Trafford and joined Preston instead.
He's made four league appearances since his debut in the Footbally League Trophy in October.