Multinational enterprises (MNEs) face a range of challenges when entering developing countries, including the need to adapt their business models to local markets' cultural, economic, institutional and geographic features. Where they lack the tangible resources or intangible knowledge needed to address these challenges, MNEs may consider collaborating with non-profit nongovernmental organizations (NGOs) to help facilitate new modes of value creation. In such cross-sector partnerships, parties contribute complementary capabilities along each stage of the value chain to develop products or services that neither could produce alone, creating and delivering value in novel ways while minimizing costs and risks. Our conceptualization broadens the business model concept to incorporate cross-sector collaborations, arguing such partnerships can create and deliver both social and economic value, which can be mutually reinforcing. We highlight, in particular,the competencies and resources NGOs can bring to such partnerships, including market expertise, legitimacy with clients/customers, civil society players and governments, and access to local expertise and sourcing and distribution systems. Beyond contributing to particular value chain activities, NGOs and companies can offer missing capabilities to complete each other's business models, or even co-create new and innovative multiorganizational business models. We stress four strategic imperatives for the success of corporate-NGO developing market partnerships e innovative combinations of firm and NGO resources and skills; the importance of trust-building, and of fit between the two organizations' goals; and supporting and understanding the local business infrastructure and environment.