This book constitutes the refereed proceedings of the 21st International Conference on Services Computing - SCC 2024, Held as Part of the Services Conference Federation, SCF 2024, held in Bangkok, Thailand, during November 16-19, 2024. The 7 full papers in this book were carefully reviewed and selected from 13 submissions. They are organized in topical sections as follows: business modeling, business consulting, solution creation, service delivery, and software architecture design, development, and deployment.