Summary The author exemplifies the congruency of essential foundations between the critical realism of the Berlin School of Gestalt Psychology (Gestalt theory) and Nicolai Hartmann’s Critical Ontology. For instance, this congruency manifests in the importance given to critical-realistic epistemology – purified from idealistic prejudices, not least prejudices such as production-theoretical ones – connected with an unconditional phenomenology. Altogether, it results in a shared critical distance from scholars of Brentano, such as Husserl and Meinong, as well as from Neo-Kantianism.