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MasTec is a leading infrastructure construction company operating mainly in North America across a range of industries. Its primary activities include engineering, building, installing, maintaining, and upgrading communications, oil and gas, utility, renewable energy, and other infrastructure. MasTec reports its results under five segments: communications; clean energy and infrastructure; pipeline infrastructure; power delivery; and other.

Caterpillar is the world's leading manufacturer of construction and mining equipment, off-highway diesel and natural gas engines, industrial gas turbines, and diesel-electric locomotives. Its reporting segments are construction, resource, energy, and transportation. Market share approaches 20% across many products. Caterpillar operates a captive finance subsidiary to facilitate sales. The firm has a global reach that is approximately evenly balanced between the US and the rest of the world. Construction skews more domestic, while the other divisions are more geographically diversified. An independent network of over 150 dealers operates approximately 2,800 facilities, giving Caterpillar reach into about 190 countries for sales and support services.