Mather, who is the managing director of Simply Sport Management and runs a manufacturing business, hopes his contacts can help the club move forward.
A statement from Mather on the club's official website read: "I am delighted to have invested in
"In addition to the financial investment, my sports management business, Simply Sport Management, specialises in youth players. I am confident that my colleagues and contacts within this field will prove invaluable.
"The facilities within the youth academy and training centre at
"I look forward to being part of the team rebuilding this fantastic club."
League reconstruction plans remain on course for next season after Scottish Football League clubs reached unanimous agreement on a number of issues at a meeting at Hampden.