This book explores the power of relationships in shaping resilient and sustainable businesses. In an era of uncertainty, where disruptions challenge organisations globally, strong inter-organisational and social connections can be the key to companies' survival and long-term success. The authors highlight how inter-organisational collaboration and relationships help businesses adapt to change, drive their performance, and sustainability.At the heart of the book is the concept of the relational business model, which moves away from short-term transactions toward long-term relationships with a broad diversity of organisational and social actors. By strategically developing and managing relationships, companies can be resilient and create lasting value while addressing sustainability challenges.Structured into three sections, the book first lays a theoretical foundation of a relational business model and explores how relationships enhance business resilience and performance. Next, it addresses digitalisation and new technologies as a source of companies' resilience. Finally, it examines the role of sustainable practices in inter-organisational collaboration. Drawing on multiple research perspectives, the book simultaneously provides practical insights for leaders, managers, and policymakers.Combining academic research with real-world applications, this book offers a compelling guide for academics, students, and practitioners to building businesses that are resilient, competitive, and socially and environmentally responsible.