P PT. SUCACO Tbk. is a manufacturing company which produces various kinds of cables. These include, duct cable, aerial cable, and telephone cable. The problem which the company faces is the delay of the arrival of raw materials and the quality of raw materials which doesn’t comply with the company’s standard. This means that the returning or reordering to new suppliers is necessary, which increases the time required in the process of procurement of raw materials. In addition to that, there is also the unavailability of an integrated system in data storage which relates to the procurement of raw materials, such as supplier data and raw materials data. The ineffectiveness of the current raw materials procurement system is because the company still pick their supplier subjectively. The objective of this research is to build a decision support system as a tool to recommend the best supplier from some alternative suppliers to supply raw materials at PT. SUCACO Tbk. The decision support systems design begins by analyzing the deficiency of current system using the PIECES framework, create a matrix of problems, causes, effects, and the objective for the improvement of the system, design data component management by making context diagram, Data Flow Diagram (DFD), Entity Relationship Diagram (ERD), Physical Data Model (PDM), and Data Dictionary, then devise a database using MySQL. The next step of this systems design is to design a model component management. The model used in the designing of decision support systems is Analytical Hierarchy Process (AHP). The last step is to design component dialogue management or user interface using Visual Basic programming language. The result of this decision support systems design shows that the system can select the best supplier, from one of which is the raw material of PVC Filler/bedding, which lists the best alternative suppliers in an order, which are Plastrade, Sarana Mitra Inti Global, Indiamart, Rapindo, Shandong, and PT. SPLP. Besides that, this decision support systems that has been designed has an organized and integrated database system in the data storage which relates to the procurement of raw materials, such as supplier data, raw materials data, purchase order data, and raw materials sample data, which resulted in the ease of data distribution between departments.