Stem, Inc.
A maker of AI-driven software for clean energy, Stem runs its Athena platform that tells solar farms, battery storage, and EV chargers when to store or release power to trim bills and steady the grid. Founded in 2009 by Prakash Menon, Salim Khan, and Ed Steadman, the company went public in 2021 through a merger with a blank-check firm. Its name echoes a plant's stem, the central channel that moves energy between roots and leaves.