Mentoring is an interaction process in which there is a transfer of knowledge between a mentor and a mentee based on trust, mutual respect, and the mentor provides support, encouragement, guidance and enthusiasm that aims to shape the growth, development, competence of the mentee in a positive direction. This article discusses the development of analytical thinking competencies in an organization or company. One approach that can be taken to improve analytical thinking competency is mentoring. By using a quasi-experimental method before and after studies design it was found that mentoring activities had a positive impact on previous analytical thinking competencies and could improve organizational or company performance. Thus mentoring can be used effectively for the development of analytical thinking competencies in order to support the organization to determine certain position positions in PT. X