The purpose of the present study looks to assess to what extent organizational communication affects organizational climate and organizational effectiveness. (H1) Clear organizational communication within the structure of a firm will be associated with a more positive organizational climate. (H2) Clear organizational communication within the structure of a firm will be associated with higher organizational effectiveness. To test these hypotheses, 33 participants completed a survey measuring the degree of organizational communication, organizational effectiveness, and organizational climate in the company they work for. Two correlations were performed to analyze both relationships. Results show a significant positive correlations for both organizational communication on organizational climate, and organizational communication on organizational effectiveness, r(33) = .712, p < .001 and r(33) = .549, p < .001. In conclusion, the present study contributed to knowledge to what degree open, clear, non retaliatory communication affect the firm's organizational climate and its organizational effectiveness.