This chapter introduces in detail the complete firm and its characteristics, structure and culture aspects, and its challenges. The chapter completes the introduction of the different entities involved in the discussion of the book. It starts with the introduction of the enterprise called the “complete firm” and moves to characterize it, presents the organizational structure, and the culture developed in order to fit the demands of the environment the firm is active in. The management aspects of the complete firm are mentioned, and the challenge of managing each different aspect of it as well as the general management of all are presented. Lastly, as preparation for the next chapter, the TSU and the complete firm are contrasted regarding the focus of their activities.