cell-towers
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The Carrier That Sold Itself and Kept the Towers
For 40 years UScellular chased signal into the parts of America the big carriers ignored. Then it did the math, sold the customers to T-Mobile, and turned itself into a tower company.
The Startup That Turns Drone Photos of Cell Towers Into Money
Anne Zink built a company that lets you inspect a 300-foot cell tower without climbing it. The trick isn't the drone - it's what happens to the pictures after they land.
The Quiet Buyout Shop That Bets on the Pipes, Towers, and Billboards Nobody Notices
For almost 30 years, a small team in Lower Manhattan has quietly built and sold the unglamorous infrastructure of American communications and media - and made a business out of the boring.
PRENAV
PRENAV digitizes the world's critical infrastructure with drones, LiDAR, 3D analytics, and deep learning. Its web-based platform, PRENAV.XYZ, combines photogrammetry with AI to turn drone imagery into detailed 3D digital twins, then scans them for cracks, corrosion, and structural damage - resolving surface features smaller than 0.2mm. Founded in 2013 in Redwood City, the company replaces dangerous rope-and-scaffold inspections of cell towers, wind turbines, bridges, dams, and even nuclear reactors with automated, precise, GPS-independent drone flights.