Businesses today specialize in their core competencies and outsource their other operations due to the emerging perception of competition brought on by the large-scale similarity of production, the quick spread of technology and information systems, and the disappearance of international borders. One of the most common fields of outsourcing activity is Third Party Logistics (3PL) service, and the Organizational Performance elements of 3PL service providers are listed as Service Quality, Relationship Management and Organizational Effectiveness. This research aims to examine the Organizational Performance criteria of the 3PL providers serving the production enterprises and to evaluate the relationship structure between the mean and standard deviation values of the statements in the survey. The empirical results obtained from frequency, regression and standard deviation analyses show that Guanxi, Reliability, Assurance, and Trust positively affect Organizational Effectiveness. However, only Trust has a positive and statistically significant impact on Service Quality