There are different factors that affect on project's role in determining its strategy. Project is facing a changing business environment and it must make precise and on time decisions according to new conditions. On the other hand, the project is surrounded by several organizations with different roles and different organizational goals and strategies that each of them is aiming at aligning project strategy with its own organizational strategies. So it seems that position of project organization within the network of its stakeholders is an important factor in the degree of project's role in determining its strategy. According to two hypothesis on stakeholders theory and social network analysis, "the density of the network of stakeholders of an organization" and "the centrality of the organization in its stakeholders' network", are two environmental factors that affect on the degree of resistance of the organization against its stakeholders' expectations. According to these two hypotheses, as density of the network increases, the ability of the stakeholders to constrain the organization's actions increases, and on the other hand, as the organization's centrality increases, its ability to resist stakeholder pressures increases. In this quantitative research, we used survey approach to examine two mentioned hypothesis in the context of construction projects. After identifying project strategy components for estimating "role of project organization in determining project strategy" as dependant variable and indicators for measuring "density of project's stakeholders' network" and "centrality of the project organization in its stakeholders' network" as two independent variables, we distributed 43 questionnaires within 15 projects and examined correlation between variables in these projects.

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