Columbia Gas of Ohio

UtilitiesOhio, United States201-500 Employees

Columbia Gas of Ohio supplies natural gas to roughly 1.5 million customers across Ohio. It is the largest natural gas utility in the state. The company operates as a subsidiary of NiSource, a major fully regulated utility group serving about 4 million customers across six states through its Columbia Gas and NIPSCO brands. Headquartered in Columbus, Ohio, the business maintains a mid-sized workforce. In October 2025, Columbia Gas of Ohio partnered with Miller Pipeline to upgrade natural gas infrastructure along Dunford Road in Westlake, Ohio.

Sign up for free to view info

Email Format Employee directory