As social and ecological problems escalate, the role of collective capacity and knowledge is becoming more critical in reaching solutions. This capacity and knowledge are dispersed among diverse stakeholder organizations. Thus, organizations in the private, public and civil society sectors are experiencing pressure to address these complex challenges through collaborative action in the form of multi-stakeholder partnerships. One major challenge to securing and maintaining partner engagement in these voluntary collaborative initiatives is defining the value proposition for prospective and existing partner organizations. Understanding the relationship between different forms of partner involvement and the subsequent resources that partners stand to gain is necessary to articulate the value proposition of the partnership to partners. This study conducts a survey of partner organizations from 15 different sustainability-focused multi-stakeholder partnerships in Canada. We compare three partner strategies for implementation and value capture and discover that each strategy is associated with different partner-level resource outcomes. Our findings indicate that product stewardship strategies are associated with financial and organizational capital, marketing and promotion with human capital, and internal implementation structures with shared capital. This study has implications for multi-stakeholder partnership researchers and practitioners because it suggests the possibility that certain partner-level outcomes could rely on the partner, as well as partnership implementation strategies. © 2019 by the author.