IMO vs AMT Comparison

Imperial Oil Ltd is an integrated oil company active in all phases of the petroleum industry in Canada, including the exploration for, and production and sale of, crude oil, natural gas, petroleum products, and petrochemicals. It also pursues lower-emission business opportunities, including carbon capture and storage, hydrogen, lower-emission fuels, and lithium. The company's reportable segments are Upstream, Downstream, and Chemical. Maximum revenue for the company is generated from its Downstream segment, which refines crude oil into petroleum products and distributes and market these products. The Upstream segment explores and produces crude oil, its equivalents, and natural gas, and the Chemical segment manufactures and markets hydrocarbon-based chemicals and chemical products.

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.