Glydon will lead the global finance team, with responsibility for driving growth and the development of the business.
He has also held senior positions in global finance and change management in the leisure, consumer goods and TMT sectors.
Glydon said: "Professionally, this move marks an exciting stage in my business career. I am thrilled to be joining a company that has such a clear and exciting vision."
Adrian Chedore, Synovate chief executive, said: "[Patrick's] impressive track record encompasses all aspects of global financial management, making him ideally placed to underpin Synovate's continued growth and success."