BX vs AMT Comparison

Blackstone is the world's largest alternative-asset manager with $1.346 trillion in total assets under management, including $961.6 billion in fee-earning assets under management, at the end of June 2026. The company operates with scale in each of its major product lines: private equity (28% of fee-earning AUM and 35% of base management fees), real estate/real assets (29% and 32%), credit and insurance (33% and 25%), and other alternatives (10% and 8%). While the firm primarily serves institutional investors (84% of AUM), it also caters to clients in the high-net-worth channel (16%). Blackstone operates through 25 offices in the Americas (8), Europe and the Middle East (9), and the Asia-Pacific region (8).

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.