This chapter delves into the intricacies of stewardship in project performance within the construction industry, underscoring the significant impact of organizational behavior and culture on outcomes. It analyzes how organizational structures, norms, and values shape the behaviors and interactions of individuals and groups within construction enterprises, highlighting the importance of responsible leadership and effective management practices. Key topics such as leadership styles, communication patterns, team dynamics, and decision-making processes are explored in detail, demonstrating their crucial role in project success and organizational effectiveness. Through a series of case studies and empirical research, readers gain valuable insights into the unique challenges and opportunities involved in managing organizational behavior and culture in the construction sector. The chapter also addresses strategic approaches for fostering a positive work environment, enhancing collaboration and creativity, and effectively managing challenges such as conflict and resistance to change. It offers practical guidance on implementing stewardship concepts to improve leadership skills and build resilient, high-performing teams. By understanding the complexities of organizational behavior and culture, construction professionals can more effectively manage their responsibilities and contribute to the long-term success of their projects and organizations. The chapter emphasizes the importance of cultivating a culture of stewardship, where every team member is committed to quality, accountability, and continuous improvement—ensuring the sustainable success of construction projects.