High Quality Content by WIKIPEDIA articles! Cummins Inc. (NYSE: CMI) is a Fortune 500 corporation that designs, manufactures, distributes and services engines and related technologies, including fuel systems, controls, air handling, filtration, emission control and electrical power generation systems. Headquartered in Columbus, Indiana, United States, Cummins sells in approximately 190 countries and territories through a network of more than 500 company-owned and independent distributors and approximately 5,200 dealers. Cummins reported net income of $1.04 billion on sales of $13.23 billion in 2010.