Job satisfaction raises worrying questions these days that no business of any character can shy away from. This article also follows this perspective and focuses on the analysis of job satisfaction according to Herzberg's two-factor theory. Our concern is to know what are the main factors that provide satisfaction to the workers of the Congolese Control Office (OCC/GOMA). The objective here is to understand the main factors promoting satisfaction among all workers in this organization. In response to our concern, we estimated that the main factors promoting job satisfaction would be on the one hand: staff allocation, communication, working conditions, company organizational policy, salary (remuneration), job security, safety at work, human and technical supervision (extrinsic factors) and on the other hand: attractiveness to work, autonomy, authority, advancement in rank, the degree of responsibility, innovation as well as recognition (intrinsic factors) unlike Frederic Herzberg who stipulates in his theory of two factors that only the above-mentioned intrinsic factors provide satisfaction to workers. It remains to discover the results in the following pages.