"Zenith" refers to multiple distinct entities as of early 2026, including the specialized insurance provider Zenith National Insurance Corp, the aircraft manufacturer Zenith Aircraft Company, and Merck's Phase 3 clinical trial for Pulmonary Arterial Hypertension (PAH). Additional organizations include Zenith Global SpA in asset-backed security servicing and Zenith Energy, which holds environmental permits for operations in Oregon. Servicer Evaluation: Zenith Global SpA | S&P Global Ratings