After the corporate governance crisis in 2001, and the crises in the following years increased the concern about the governance of the firms. The concern focused on corporate governance. There were important developments in Turkey related to corporate governance after 2003. The Capital Markets Board of Turkey (CMB) published "Corporate Governance Principles of Turkey" in 2003, and the corporate governance rating agency's rules were published in Official Gazette in 2007. Purpose: Based on these developments, the paper aims to investigate corporate governance rating firms in Turkey and their rating scores. Method: To investigate the rating firms and their scores, annual data are collected from the TKYD website from 2007 to 2010. Because no article comprehensively investigates the data, we use simple descriptive statistics and data visitation methods.Findings: We find two main results. The first one shows that there are two dominant rating companies in Turkey. The second shows that the firms have increasing rating values by year.Originality: In the absence of any comprehensive analysis of Turkey's corporate governance rating firms' rating scores, this article will constitute base information for further research.