Although mentors can represent a promising source of support for entrepreneurs, research on entrepreneurs’ mentoring relationships remains sparse. In particular, we lack insights into the antecedents of these relationships and importantly, into how entrepreneurs assess the attractiveness of potential mentors. Addressing this gap, we introduce a model of entrepreneurs’ assessment of mentors building on network generation theory. This model suggests a complex interplay between different types of the mentors’ experiences, business-related value similarity between mentors and entrepreneurs, and entrepreneurs’ subjective stress.