This foundational research paper reconstructs the genealogical and structural architecture of Integrative Realism, a system-theoretical framework developed within the research program of Integrative Theoretical System Studies (ITSS). The paper does not present a synthetic doctrine or a completed metaphysical system. Instead, it operates through an extractive method that isolates invariant structural relations recurring across independent intellectual traditions. The analysis proceeds by examining three traditions—Jewish mysticism, Buddhist phenomenology, and the Austrian/Central European methodological tradition—not as bodies of belief, but as structural fields. From these fields, the paper reconstructs recurrent process structures governing appearance and concealment, unity and differentiation, necessity and contingency, transformation and stability. These structures are then formalized into systemic axes while remaining explicitly non-reified and open to revision. Methodologically, the paper rejects both reductionism and relativism, as well as synthetic integration at the level of content. Integration is pursued exclusively at the level of form, with recurrence under conditions of independence serving as the primary criterion of structural necessity. A non-dual meta-structural principle is articulated to explain how multiple axes can coexist without hierarchy or collapse. The paper situates itself in relation to the broader corpus of Integrative Realism, clarifying its foundational role with respect to the epistemic work Offenbarung und Leere and to applied studies developed elsewhere in the corpus. It explicitly delineates its limits, scope boundaries, and open questions, positioning itself as an architectural foundation rather than a closed theoretical system. Although classified here under Zenodo’s “Working Paper” category for technical reasons, the text is intended as a foundational research paper: a long-form, architectonic work designed to establish genealogical clarity, methodological discipline, and structural coherence for subsequent research and application. This paper is derived from the German-language foundational volume Grundlagenband des Integrativen Realismus, in which the genealogical reconstruction and methodological extraction of Integrative Realism are developed in full detail. The present English text is neither a translation nor a summary of that work. It serves to formalize, for an English-language readership, the underlying structural architecture and extractive method through which the framework emerged, while preserving the conceptual boundaries and disciplinary discipline of the original volume.