SBA Communications (SBAC)

The company’s portfolio spans North America, South America, and Africa, with tens of thousands of tower assets. The United States is its most important market and accounts for the majority of site leasing revenue, supported by a large base of towers in locations where carriers need dense and reliable network coverage. Internationally, SBA has meaningful operations in markets such as Brazil and Guatemala, giving it exposure to mobile data growth outside the US.

SBA’s business model benefits from long-term lease agreements, contractual rent escalators, and the ability to host multiple tenants on the same tower. Once a tower is built or acquired, adding another carrier’s equipment can create high incremental margins, making tenancy growth a key driver of profitability. Demand is tied to carrier investment in network capacity, 4G and 5G upgrades, spectrum deployments, and the continuing growth in mobile data consumption.

The company’s customer base is concentrated because wireless markets are typically dominated by a small number of national carriers. This concentration creates dependence on major telecom operators, but also reflects the essential nature of tower infrastructure within mobile networks. SBA Communications is therefore a real estate-like business whose assets are deeply embedded in the wireless communications ecosystem.