Analysis of ISO 9001:2015 Certification Readiness in PT. Wijara Nagatsupazki using Gap Analysis, global economic competition and market demand, requires companies to establish and develop the internal management system in accordance with International standards. Due to the world economic competition intensifies, many organizations adopt and implement effective quality improvement programs. The quality improvement program is contained in the Quality Management of System (QMS), which are developed in ISO 9001 standard certification. ISO 9001 is a standard that contains the requirements for quality management systems published by the International Organization for Standardization (IOS). Companies that become the research object is PT. Wijara Nagatsupazki, the company is engaged in manufacturing. The company suffered some losses in the form of withdrawal of orders from customers, on the other hand there were also complaints from customers because the products are not in accordance with the standards that have been approved, this is one of the indirect impact of the absence of the ISO 9001 certification in PT. Wijara Nagatsupazki. his study aimed to evaluate the condition of PT. Wijara Nagatsupazki today and how prepared PT. Wijara Nagatsupazki preparation for ISO 9001: 2015 and providing recommendations and prepare a document for the quality of the company in accordance with the requirements of ISO 9001 2015. Gap Analysis was used to evaluate the state of the PT. Wijara Nagatsupazki and assessing the readiness of companies for preparing the company for ISO 9001:2015 certification. The calculations on the Gap Analysis using the checklist will be made under the existing requirements of ISO 9001: 2015. The results of calculations using the checklist will show how prepared PT. Wijara Nagatsupazki to perform a certification ISO 9001: 2015