SBAC

Sba Communications Corporation

A maker of wireless infrastructure, SBA Communications owns and leases tens of thousands of cell towers across the Americas and Africa, renting antenna space on them to carriers like T-Mobile, AT&T, and Verizon. Founded in 1989 by Steven Bernstein as a consulting firm, it began as "Steven Bernstein and Associates"—the source of the SBA name—and launched with credit card cash advances from a basement office before pivoting to owning towers in 1997. Its customers often share the same tower, co-locating equipment to serve more people without building new ones.