URI vs AMT Comparison

United Rentals is the world's largest equipment rental company, principally operating in the US and Canada. It has 16% share in a highly fragmented market serving general industrial (49%), commercial construction (46%), and residential construction (5%). The company operates a $21 billion fleet of equipment, including aerial platforms, forklifts, excavators, trucks, power generators, and various other materials serving local and national accounts from nearly 1,600 locations in North America and 100 abroad. It has pursued a strategy of bundling specialty rental capabilities to offer its customers more advanced solutions in addition to its core equipment rental business, supporting its ambitions to become a one-stop shop for customers and enhance and maintain its margin profile.

American Tower owns and operates about 150,000 wireless towers throughout the US, Asia, Latin America, Europe, and Africa. It also owns and/or operates 30 data centers in 11 US markets through its CoreSite segment. The company's customer base in the tower business is very concentrated, with most revenue in each market generated by the top three or four mobile carriers. The company operates 42,000 towers in the US, which accounted for about half of total revenue in 2025. Outside the US, American Tower operates about 47,000 towers in Latin America (dominated by Brazil), 33,000 towers in Europe, and 28,000 towers in Africa. American Tower operates as a REIT.