Quadrem's shareholders are among the world's largest natural resources companies. Several are listed in the Global Fortune 500.

Alcan
Alcoa
Anglo American
Barrick.
BHP Billiton
Vale Inco
Corporacion Nacional del Cobre de Chile (Codelco)
De Beers Consolidated Mines Ltd.
Glencore
Imerys
Newmont Mining
Pechiney
Penoles
Phelps Dodge Corp.
Rio Tinto
Votorantim
WMC Resources
Xstrata PLC