People seeking to raise grievances about human rights related issues arising from technology products and services continue to report significant difficulties in identifying, navigating and accessing the mechanisms best placed to deal with the substance of their complaints. This paper focuses on the third pillar of the UNGPs: the need for there to be effective remedies for business-related human rights harms. It is designed to provide an introduction to the role, scope and design of company-based grievance mechanisms in ensuring effective remedy for victims.