This paper explores governments’ role in fostering, facilitating and engaging in collective action initiatives to support the private sector in its fight against corruption. Building on the OECD Anti-Bribery Recommendation, the first international standard to recommend collective action as a tool to fight foreign bribery, the paper examines when, how and for what purposes governments participate in such initiatives. The paper offers a blueprint for government authorities seeking to support anti-corruption collective action initiatives in ways that are strategic, effective and sustainable.