Purpose: The purpose of this research is to identify the effects of organizational silence on organizational success at the Egyptian industrial companies in Sadat City. Design/methodology/approach: To assess organizational silence, refer to (organizational silence questionnaire, Schechtman, 2008; Brinsfield, 2009), and organizational success (organizational success questionnaire Simon et al., 2011). Out of the 372 questionnaires that were distributed to employees, 315 usable questionnaires were returned, a response rate of 84%. Multiple Regression Analysis (MRA) was used to confirm the research hypotheses. Findings: The research has found that there is significant relationship between organizational silence and organizational success and found that organizational silence directly affects on organizational success. In other words, organizational silence is one of the biggest barriers to organizational success of the employees at the Egyptian industrial companies in Sadat City. Practical implications: This research pointed to the need for organizations to adopt a culture which encourages and urges employees to speak in the labor issues and the non-silence in order for the administration to be able to realize these issues and try to solve them first hand in order to prevent their aggravation. Originality/value: Silence climate has an impact on the ability of organizations to detect errors and learn. Therefore, organizational effectiveness is negatively affected. This research aims to measure the effect of organizational silence on organizational success. Based on the findings of this research, some important implications are discussed