This research extends the developing literature on enterprise supply chain integration which is a series of collaborations between internal and external levels of an enterprise that collaborates strategically between suppliers, customers, and the company’s internal management. Enterprise supply chain integration is needed to ensure an enterprise achieves a certain level of service performance, have a discernible information flow, generates profit, and creates an effective and efficient decision in order to provide maximum value-added benefits to customers and suppliers. The results of previous studies are not consistent, namely the relationship between supply chain integration and the company's internal performance. This research focuses on the antecedent of supply chain integration which consists of Internal Company Integration, Customer Integration and Supplier Integration that are linked to a firm's performances. The study collected responses from 262 employees in a travel agency registered in North Jakarta and analyzed statistically using SPSS. The research used three dimensions of Supply Chain Integration (Internal Integration, Supplier Integration and Customer Integration) and interactions with Company Performance. The results of the study showed that Supply Chain Integration affects Company Performance; whereas Internal Integration and Customer Integration have a higher influence on improving Company Performance rather than Supplier Integration. The implications of the study help to increase the literature of the Supply Chain Integration and help corporate management to improve business’ performance.