The success of software testing activities contributes significantly to a good quality of the software product; in particular, it is expected for the ISO/IEC/IEEE 29119 to have a favorable impact on this domain. However, in small businesses in Lima, these activities are performed in uncontrolled way, tests do not achieve adequate coverage and the software operates with errors. This study is an exploratory research in organizations conducting software testing, the objective was to determine the extent of adoption of ISO/IEC/IEEE 29119 testing practices. The analysis was performed using a multiple case study analysis of four units, considering two types of organizations. Individual and grouped processes profiles were obtained. Organizations that acted as software factories in a rigid contractual scheme showed better performance than those who acted as part of a software development team.