Stem, Inc. STEM

Company Overview

Stem, Inc. is a U.S.-based clean energy technology company focused on energy storage, artificial intelligence-driven energy management software, and distributed energy resource optimization. The company operates primarily in the renewable energy and energy infrastructure sectors, serving commercial, industrial, utility, and project developer customers. Stem’s core offering combines battery energy storage systems with software analytics and energy optimization tools intended to improve energy efficiency, reduce electricity costs, support grid reliability, and enable renewable energy integration.

The company’s primary revenue drivers include software subscriptions, energy storage system integration services, hardware procurement, and long-term service agreements. Stem is best known for its AI-enabled energy management platform, Athena, which is designed to optimize battery dispatch, energy usage, and participation in electricity markets. Stem evolved from an early-stage energy storage optimization company founded in 2009 into a broader clean energy software and services platform through acquisitions and expanded grid services capabilities. The company became publicly traded through a merger with a special purpose acquisition company in 2021.