Purpose: The aim of the publication is to present the specificity of the phenomenon of corruption, its complexity, methods, universality and destructive impact on the implementation of the basic statutory tasks of companies. Indication of a very high risk for management boards and employees of entire companies in the area of corruption. The aim is to present the basics of building an anti-corruption system and to show the possibilities of protection against the destructive effects of corruption. Design/methodology/approach: Indicating the requirements of the ISO 37001 standard as a tool supporting the introduction of good anti-corruption practices into the corporate culture. Findings: The ISO 37001 standard is an effective tool to introduce a systemic approach to preventing corruption in an organization. Research limitations/implications: Currently, there is no access to information on how many small and medium-sized enterprises have taken up the topic of introducing anti-corruption practices in their organizations. Practical implications: The publication indicates specific solutions that should be taken by small entrepreneurs to prevent corruption in their organization. Social implications: The publication in its message points out that anti-corruption activities not only concern politics or the sphere of large business, but also it is an important topic that should be paid attention to in small and medium-sized enterprises. Originality/value: The publication indicates the specific requirements of the ISO 37001 standard and the possibility of its implementation also in the sector of small and medium-sized enterprises.