This book constitutes the proceedings of the 25th International Conference on Computer Information Systems and Industrial Management, CISIM 2026, held in Bialystok, Poland, during September 25–27, 2026.

The 28 full papers presented in this volume were carefully reviewed and selected from 51 submissions. They are grouped into the following topical sections: Biometrics and Pattern Recognition Applications; Computer Information Systems and Security; Industrial Management and other Applications; Machine Learning and Artificial Neural Networks; and Modelling and Optimization.