This study evaluates the implementation of the Alliance to better protect minors online (‘the Alliance’). Officially launched in 2017, the Alliance is a multi-stakeholder platform through which companies make a series of commitments to address emerging and existing risks that minors face online. The initiative focuses on protection from harmful content, conduct and contact, and seeks to identify possible areas within these three categories that would benefit from a coordinated approach from companies and other stakeholders to overcome them. In general, the evaluation finds that the Alliance is an original, relevant means to protect minors online. There is also unrealised potential to foresee, discuss and forge common solutions across different stakeholder types, including on existing and emerging threats to the safety of minors online.