The emerging literature on entrepreneurial networks suggests that entrepreneurial action sets may be organizational in nature and may be investigated in organizational terms. We link three pre-founding entrepreneurial action set variables: (1) Size, (2) Degree (a measure of inter-connectivity within the entrepreneurial action set), and (3) Frequency (a measure of how often entrepreneurial action set members Interact with each other) to first-year new organization growth. Data were gathered through structured interviews with 44 entrepreneurs and analyzed with multiple regression. The hypotheses were strongly supported by the data.