The purpose of this research was to study and discuss a case of performance consulting based on human performance technology. There was a discuss for the various concepts of "consulting" and a review of the process of Human Performance Technology and Performance Consulting. Next, the background of the "c" credit card company was investigated. The case was developed in the order of performance analysis, cause analysis, intervention selection and design, intervention implementation and change management, and result, and evaluation as the process of human performance technology. Conclusively, the C company could be successful in Structuring credit due to well-organized credit or claim management. The implications of the case study WIεre discussed in terms of relation of competencies between human performance technology and performance consultant. The implication was emphasized on the orientation of performance technology and performance consulting.