Prologis, Inc.: Real estate investment trust (REIT) specializing in logistics properties, based in the United States. Gross revenue: $120.6 billion.

American Tower Corporation: REIT specializing in wireless and broadcast communications infrastructure, based in the United States. Gross revenue: $100.44 billion.

Equinix, Inc.: REIT specializing in data centers, based in the United States. Gross revenue: $74.75 billion.

MAS Real Estate, Inc.: Diversified real estate company based in the United Kingdom. Gross revenue: $65.45 billion.

Public Storage: REIT specializing in self-storage units, based in the United States. Gross revenue: $53.43 billion.