Crown Castle owns, operates and leases more than 40,000 cell towers and approximately 80,000 route miles of fiber supporting small cells and fiber solutions across every major U.S. market.

American Tower Corporation, one of the largest global REITs, is a leading independent owner, operator and developer of multitenant communications real estate with a portfolio of approximately 219,000 communications sites.

Iron Mountain Incorporated (NYSE: IRM), founded in 1951, is the global leader for storage and information management services. Trusted by more than 225,000 organizations around the world, and with a real estate network of more than 90 million square feet across approximately 1,450 facilities in approximately 50 countries, Iron Mountain stores and protects billions of valued assets, including critical business information, highly sensitive data, and cultural and historical artifacts.

Digital Realty supports the world's leading enterprises and service providers by delivering the full spectrum of data center, colocation and interconnection solutions.

SBA Communications Corporation is a first choice provider and leading owner and operator of wireless communications infrastructure in North, Central, and South America and South Africa.

GLPI is engaged in the business of acquiring, financing, and owning real estate property to be leased to gaming operators in triple-net lease arrangements, pursuant to which the tenant is responsible for all facility maintenance, insurance required in connection with the leased properties and the business conducted on the leased properties, taxes levied on or with respect to the leased properties and all utilities and other services necessary or appropriate for the leased properties and the business conducted on the leased properties.