There are three main ways to organize projects: functional organization, dedicated project teams, and matrix structure. A functional organization delegates different parts of the project to respective functional units but can lack focus and integration. Dedicated project teams are fully dedicated to projects but are expensive with limited expertise. A matrix structure uses a hybrid approach with dual reporting to functional and project managers, optimizing resources while achieving integration. The best structure depends on factors like project importance, resources available, and needs for integration or expertise. Organizational culture also impacts project organization by providing norms and expectations projects must navigate.