This article illustrates the application of psychological and educational consultation in an international setting. With the goal of promoting psychological well-being of the school-age population, a partnership was formed between an American school psychologist and a Sri Lankan educational sociologist and teacher educator. The partners, or co-consultants, engaged in a recursive research-intervention process using participatory culture-specific system consultation to learn the culture; conduct formative research; form partnerships in selected systems; and subsequently develop culture- and context-specific conceptual models, interventions, and assessment/evaluation measures for promoting the psychological well-being of students in Sri Lankan schools. This article describes the stages of the collaborative work across almost two decades and the challenges and benefits inherent in international partnerships.