With the constant change in needs, changes have also occurred in competitive conditions, and ensuring customer satisfaction has become a matter of competition among supply chains outside of companies. The units that make up supply chains want to be chosen by improving supply chain practices and increase their effectiveness by gaining a competitive advantage. It is essential that all units of the supply chain act together and as a whole to respond quickly to market requirements (Cao and Zhang, 2011:163). The harmonious operation of the links in the supply chain is also an important issue in terms of the performance of the companies they represent.

This study examines the impact of supply chain integration on business performance for companies operating in the Gaziantep Organized Industrial Zones. The research aims to examine the impact of supply chain integration on business performance for companies continuing their operations in the Gaziantep Organized Industrial Zones.

This study consists of four sections. The first section is based on the conceptual framework. Accordingly, the first part covers the concept of supply chain, supply chain structure and design, and supply chain members. The second part of the first section covers supply chain management, its historical development, the purpose and importance of the supply chain, and the functions and processes of supply chain management. The third part of this section examines supply chain integration, internal issues, customers, and suppliers. The fourth and final part of the first section addresses business performance, the measurement and importance of performance, and factors affecting business performance. The second section of the study provides extensive information on the research methodology. The purpose and importance of the research, the assumptions and limitations of the study, the hypotheses, the population and sample, the data collection tools, and the validity and reliability scores of the scales used in the study are calculated in the measurement model phase. The third section of the study presents the findings and interpretations. The data belonging to the companies participating in the study were examined by establishing a structural equation model to test the hypotheses of the research. The fourth and final section of the research presents the conclusions and recommendations.