As heads of government gather in London for the International Anti-Corruption Summit to discuss next steps in tackling corruption worldwide, leaders from business and civil society tell us why they think more needs to be done.

More statements can be read at www.anticorruption-manifesto.org

We are grateful to all the authors and contributing organisations within this Manifesto and to the partner organisations that helped to convene this landmark collection of anti-corruption statements from across a wide range of business and civil society leaders. The partners for the Leaders’ Anti-Corruption Manifesto are The B Team, Thomson Reuters, the Global Organisation of Parliamentarians Against Corruption, the ONE campaign and the Commonwealth Enterprise and Investment Council

This project is supported by a grant from the Omidyar Network.