MSCI Inc. is an American financial company headquartered in New York City that provides critical decision support tools and services for the global investment community. The company is best known for its global equity, fixed income, and real estate indexes, which serve as benchmarks for trillions of dollars in assets. Additionally, MSCI offers multi-asset portfolio analysis tools, risk management software, and ESG and climate data products.
For the year ended December 31, 2025, MSCI's largest client organization by revenue, BlackRock, accounted for 10.8% of consolidated operating revenues, with 96.5% of BlackRock revenue coming from fees based on assets in BlackRock ETFs and non-ETF products linked to MSCI indexes.