Entrepreneurial firms face significant challenges in attracting and acquiring needed human resources. That is, in addition to difficulties associated with resource constraints and organization legitimacy, the requirements for “person-organization fit” change substantially as these firms transit from start-up to growth phase. This study examines how entrepreneurial firms tap evolving social network ties in order to address “needs-and-fits” issues across different developmental stages of the firm. The findings go beyond what “strength of weak ties” and “structural hole” theories would suggest, and highlight the persistent use of strong and direct ties across developmental phases. © 2004 Wiley Periodicals, Inc.