Kenya has been measuring corruption since the 2007, in the context of on-going performance contracting reforms. It has developed Corruption eradication performance indicators, and tasked the Ethics and Anti-Co- rruption Commission (EACC) to monitor and evaluate their implementation. This paper seeks to evaluate the impact of these approaches to measuring corruption. How are these indicators produced? How is corruption con- ceptualized, and what kinds of questions are asked in the surveys that inform these indicators? To what extent do these indicators reflect the “true picture” of corruption? Do these indicators contribute to decision- making on corruption in Kenya? What impact have these indicators had on the fight against corruption? By examining production and use of the corruption indicators by Transparency International-Kenya and the Go- vernment in the context of the fight against corruption and institutional reform in Kenya over the last decade, this paper seek to explore whether and how do these indicators affect the work of policy-makers, civil society, institutions, and government.