The project is at the core of the construction business. Project management can be used as a tool to maximize the success of projects and ultimately the success of construction companies. It is therefore worthwhile to explore the factors that can enhance project management competencies. In this study, it was hypothesized that "project management competencies" are influenced by "corporate strengths/weaknesses". "Corporate strengths/weaknesses" was defined as a second-ordered construct composed of three latent variables including the company's resources and capabilities, its strategic decisions, and the strength of its relationships with other parties. The data obtained from a questionnaire survey administered to 73 contractors were analyzed using structural equation modeling (SEM). The results of the study verified the hypothesis suggested. (C) 2008 Elsevier Ltd and IPMA. All rights reserved.