The aim of the research is to determine the best practices for supplier quality management (SQM) in the construction industry that ensure that the supplied materials and equipment for construction projects are within the quality requirements. The dissertation research evaluated supplier quality management (SQM) practices in the construction industry and from diverse industries by using multiple data sources. In total, 21 organizations specializing in Engineer-Procure-Construct (EPC) projects participated in this research. These organizations have each been in the construction industry for more than 70 years, and each have on average about 25,000 employees located across the globe with headquarters in the U.S., Asia, and Europe. The portfolio of projects in which these organizations are engaged range from 600,000 to 10 billion U.S. dollars. In addition to the 21 organizations who participated in this project, nine supplying companies (suppliers) provided important information regarding their supplier systems. These suppliers have each been active in the EPC industry for an average of 49 years. These nine suppliers range in size, with a number of employees ranging from 90 to 9,000, and annual sales ranging from 60 to 3 billion U.S. dollars.