Outsourced trading services provider Tourmaline Partners secures majoroity investment from Copley Equity Partners Submitted 18/05/2020 - 10:40am Outsourced trading solutions provider Tourmaline Partners has received a majority investment from Copley Equity Partners, a private investment firm that focuses on established businesses with significant growth prospects. Financial terms of the transaction have not been disclosed. Founded in 2011, Tourmaline Partners provides tailor‐made services to more than 300 institutional investor clients including hedge funds and asset managers of all sizes.