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Crown Castle owns or manages roughly 40,000 wireless towers in the United States. It leases space on its towers to wireless service providers, which install equipment to support their wireless networks. The company has a very concentrated customer base, with about 90% of its revenue from the Big Three US mobile carriers: Verizon, T-Mobile, and AT&T. Crown Castle has plans to divest its fiber business, which is expected to be finalized in the first half of 2026. After that, it will be a stand-alone tower operator. Crown Castle operates as a real estate investment trust.

Equinix is one of the leading providers of cloud- and carrier-neutral data centers, offering colocation and interconnection services to hyperscalers and businesses. Equinix operates 270 properties in 77 metropolitan areas across 36 countries, serving over 10,000 customers. About 70% of Equinix's revenue comes from renting physical space, which allows hyperscalers and other clients to store servers, data storage, and networking equipment. The other 30% of revenue is generated primarily through interconnection services (20%) and other managed services (10%).