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American Tower owns and operates more than 220,000 cell towers throughout the US, Asia, Latin America, Europe, and Africa. It also owns and/or operates 28 data centers in 10 US markets after acquiring CoreSite. On its towers, the company has a very concentrated customer base, with most revenue in each market being generated by just the top few mobile carriers. The company operates more than 40,000 towers in the US, which accounted for almost half of the company's total revenue in 2023. Outside the US, American Tower operates over 75,000 towers in India, almost 50,000 towers in Latin America (dominated by Brazil), 30,000 towers in Europe, and nearly 25,000 towers in Africa. American Tower operates as a REIT.
Blackstone is the world's largest alternative-asset manager with $1.167 trillion in total asset under management, including $860.1 billion in fee-earning assets under management, at the end of March 2025. The company has four core business segments: private equity (26% of fee-earning AUM and 30% of base management fees), real estate (34% and 40%), credit and insurance (32% and 23%), and multi-asset investing (8% and 7%). While the firm primarily serves institutional investors (87% of AUM), it also caters to clients in the high-net-worth channel (13%). Blackstone operates through 25 offices in the Americas (8), Europe and the Middle East (9), and the Asia-Pacific region (8).