What are the top 5 REITs by market capitalization in the United States?

Written by Editorial Team | Last Updated: August 2026

United States real estate investment trusts encompass massive publicly traded property corporations that command multi-billion-dollar market valuations across specialized commercial sectors. The largest REIT is Welltower, a dominant healthcare property enterprise specializing in senior housing and medical outpatient facilities. The second largest is Prologis, the undisputed global leader in logistics warehouses, distribution centers, and supply chain real estate. The third largest is American Tower Corporation, an infrastructure giant owning thousands of cellular communication towers critical for mobile networks. The fourth largest is Equinix, which dominates digital real estate by operating interconnected carrier-neutral data centers. The fifth largest is Simon Property Group, a premier retail real estate operator managing upscale shopping malls and designer outlet centers.

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