The Hawai‘i Monitoring and Reporting Collaborative (HIMARC) provides scientific support for marine resource management in Hawaiʻi by addressing the gap between data collection and decision making, using a collaborative approach that brings together scientists, managers, and stakeholders. HIMARC synthesizes existing data on nearshore ecosystems, transforms those data into a detailed accounting of ecosystem conditions, and through those efforts builds a collaborative and shared understanding of the condition of reefs in Hawaiʻi. All of HIMARC’s work involves expansive and deep partnerships with organizations throughout Hawaiʻi involved in nearshore science and management. HIMARC is comprised of over 100 individuals across more than a dozen organizations with the leadership, day-to-day operations, and administration of HIMARC housed at the University of Hawaiʻi at Mānoa.