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Abbott Laboratories

A healthcare company making everything from infant formula (Similac) and adult nutrition shakes (Ensure) to the FreeStyle Libre continuous glucose monitor and heart devices like the MitraClip. It was founded in 1888 by Chicago physician Dr. Wallace C. Abbott, who made tiny, precisely dosed pills from plant alkaloids in the back of his drugstore; the company was renamed Abbott Laboratories in 1915. Similac's name comes from "similar to lactation," its original purpose as a breast-milk substitute.