This study uses an input-mediators-output (IMO) theoretical framework (Mathieu et al., 2008) to examine the relationship of new venture TMTs’ intra-group abusive behavior (i.e., the degree to which team members exhibit sustained displays of hostile verbal and nonverbal behaviors, excluding physical contact, toward each other; Tepper, 2000) with firm performance. In so doing, the concept of “team thriving” (i.e., TMTs’ collective learning orientation and shared sense of vitality; Spreitzer et al., 2005) is hypothesized as an intervening mechanism linking new venture TMT intra-group abusive behavior to firm performance. Taking into account potential boundary conditions of this relationship, industry hostility (i.e., the extent to which industry environments involve intense competition, few exploitable business opportunities, scarce resources, slim profit margins, and little strategic maneuverability; Covin & Slevin, 1989) is hypothesized as a moderator of the indirect effects of TMT intra-group abusive behavior on firm performance. Collectively, study hypotheses intimate a pattern of moderated mediation.