Summers, who also worked with the Scissor Sisters, Badly Drawn Boy and Klaxons, was famous for helping George Michael and Andrew Ridgeley's Wham! break the U.S. in 1985, and become the first western pop group to tour China.
He co-founded Big Life Management in 1986, and his artists sold more than 60 million albums and 72 million singles worldwide.
A spokesman for the company says, "A champion of new music, a non-conformist and a visionary, Jazz Summers will be greatly missed."
Summers had been battling lung cancer for the last two years, and is survived by his wife Dianna and daughters Katie, Rio and Georgia.