Objectives <p>This study took place in a high-level educational framework; it evaluated the effects of four contemplative practices: Focused Attention Meditation (FAM), Open Monitoring Meditation (OMM), Loving Kindness Meditation (LKM), and Self-Loving Kindness Meditation (self-LKM). The focus was on their impact on teamwork competencies, as well as how they were influenced by both the individual and the group mindfulness levels.</p> Method <p>Using a pre-post experimental design, three groups were compared: the first engaged in FAM, OMM, and LKM (Core Mindfulness Training); the second in OMM, LKM, and self-LKM (Empathy Expansion Training); and a control group participated in no meditation activities. The Experience Sampling Method (ESM) was used to evaluate state mindfulness and teamwork competencies in Empathy Expansion Training. Teamwork competencies were measured across two main categories: empathy skills and interpersonal skills.</p> Results <p>Both training interventions significantly increased teamwork competencies. Core Mindfulness Training enhanced Perspective-taking, Fantasy, Extraversion, and Initiating relationships. Conversely, Empathy Expansion Training more effectively improved Empathic concern and Openness. The study confirmed the influence of both individual and group state mindfulness on teamwork competencies, though the relationships did not reach statistical significance.</p> Conclusions <p>The integration of contemplative practices within educational settings significantly enhances teamwork competencies, with distinct effects of different meditation practices on various competencies. These findings suggest that training frameworks incorporating contemplative practices improve cognitive and emotional well-being. Additionally, they enhance essential interpersonal skills critical for effective teamwork.</p> Preregistration <p>This study is not preregistered.</p>