American Tower Corporation is a holding company. The company conducts its operations through its directly and indirectly owned subsidiaries and joint ventures. It is a wireless and broadcast communications infrastructure company that owns, operates and develops communications sites.
The company's primary business includes leasing antenna space on multi-tenant communications sites to wireless service providers, radio and television broadcast companies, wireless data providers, government agencies and municipalities and tenants in a number of other industries. This business is its rental and management operations.