Book excerpt: This book presents the seven entrepreneurial activities (SEA) model of new organizational constitution, a prescriptive extension of the four flows model tradition of communicative constitution of organizations (CCO) theory. Organizational Constitution in Entrepreneurship explains the SEA model in detail, illustrating it with autobiographical accounts from Deanna Bisel’s years of experience as an entrepreneur. The volume explores how entrepreneurial efforts to create and maintain organizations involve interrelated activities. In doing so, it offers a vision of new organizational creation and maintenance as (a) communicative and material, (b) initiated by value propositions, (c) difficult to achieve, (d) having periods of partiality, (e) being the result of constitutive leadership distributed among members, and (f) dependent upon constitutive momentum generated in organizational learning. This unique volume will be a key reference for students and scholars of organizational communication, management, business studies, entrepreneurship, and communication studies.