<p><span><em>The purpose of this research is to determine the effect of corporate governance on the firm </em><span><em>performance of companies listed in the Indonesia Stock Exchange.The sample examined in </em><span><em>this research consist of 40 manufacturing companies in Indonesia Stock Exchange (BEI) </em><span><em>from 2008 to 2012 using purpose sampling as its sample selection techniques. Independent </em><span><em>variables from this research are board structure, board committees, board meetings, board </em><span><em>size, executive directors and independent non-executive directors. Dependent variables are </em><span><em>return on assets (ROA) and return on equity (ROE). The analysis method use are the classical </em><span><em>assumption test, multiple regression, and the t test. the result of the t test showed, board </em><span><em>structure has no effect on corporate performance as measured by return on assets (ROA), </em><span><em>but a negative effect on company performance as measured by return on equity (ROE),</em><br /><span><em>board committees positive effect on the firm performance, board meetings had no influence </em><span><em>on the performance of the company, board size has a positive effect on the firm performance, </em><span><em>executive directors do not have an influence on the company’s performance as measured by </em><span><em>return on assets (ROA) and return on equity (ROE), independent non-executive directors </em><span><em>have a negative effect on corporate performance as measured by return on assets (ROA), </em><span><em>but does not affect the company’s performance as measured by return on equity (ROE).</em><br /></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></p><p><span><span><span><span><span><span><span><span><span><span><span><span><span><span><span><span><span><strong><em>Keywords</em></strong><span><strong>: </strong><span><strong><em>Corporate governance, firm performance, board structure, board committee, </em></strong><span><strong><em>board meeting, board size, executive directors, independent non executive </em></strong><span><em><strong>directors, return on asset, return on equity</strong>.</em></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span><br /></span></span></span></p>