This paper sets out in summary form a range of existing grievance mechanisms from a variety of different contexts, whether industry or multi-industry, national, regional or international, private or public, based in law or voluntary standards. The aim here is to describe the mechanisms as factually as possible in order to provide a platform for further analysis as to how effective these mechanisms are and how well they are implemented in practice... [company-level mechanisms profiled: BP Azerbaijan (BTC pipeline), Gap, Hewlett-Packard (HP), Xstrata Copper]