ROCK

Gibraltar Industries, Inc.

A maker of building and infrastructure products based in Buffalo, NY, Gibraltar Industries produces metal roofing, gutters, and attic ventilation for homes, plus commercial greenhouse systems for agriculture. It was founded in 1972 as Gibraltar Steel Corporation, a small steel-processing shop that grew through acquisitions into a manufacturer spanning residential, renewable-energy, and infrastructure markets. Its stock ticker is ROCK—a nod to the Rock of Gibraltar and the strength that inspired its name—and its AgTech brand Prospiant builds turnkey greenhouses and even cannabis growing and extraction facilities.