The current global growth of business has been on the increase with projects being managed both nationally and internationally. This condition has called for great attention on research into the significance of national culture on management of the awarded projects. The national cultures originate from various backgrounds of social cultures but the surprise is that no uniformity and understanding between multi national cultures and values. For many years, it has been neglected especially in construction industry which only focuses on practical outputs rather than the group interests and values in achieving the best results. Even though the contracted organization, company or industry has their set conditions which consider better communication, collaboration and work effectiveness, the accumulated effects of the national groups’ cultural practices, beliefs, know-how, behavior and attitude may either positively or negatively affect the process of management for better results.