Acorn Energy, Inc., through its subsidiaries, develops and markets wireless remote monitoring and control systems for various markets in the United States and internationally. It operates in two segments, Power Generation (PG) and Cathodic Protection (CP) monitoring. The PG segment develops and markets wireless remote monitoring and control systems, and services for critical assets, which include stand-by power generators, compressors, batteries, pumps, pumpjacks, light towers, turbines, and other industrial equipment; and Internet of Things applications. The CP segment offers cathodic protection systems on gas pipelines for gas utilities and pipeline companies for remote monitoring. It serves customers in the Fortune 500 or Fortune Global 500. The company was founded in 1986 and is based in Wilmington, Delaware.