Espen Agdestein (born 7 February 1965) is the former manager of former Chess World Champion Magnus Carlsen (until 2021).

[1] Agdestein is one of the co-founders and partners of Idekapital, the largest Venture Capital Fund in Norway.

Idekapital manages over NOK 500 million and invests in Norwegian startup companies in need of growth capital.

He founded Idekapital together with Anders Brandt, Rune Holen and Kristian Øvsthus.

[7] He founded the magazine Art of Taste in 2001 which was later bought by Hjemmet Mortensen in 2006.