NiSource Inc. (NI) is a regulated utility company based in Indiana that provides natural gas and electric services to nearly 4 million customers across six U.S. states. Valued at $18.6 billion by market cap, it operates primarily through its Columbia Gas and NIPSCO brands, focusing on infrastructure investment and clean energy transition.
Companies worth $10 billion or more are generally described as “large-cap stocks,” and NI perfectly fits that description, with its market cap exceeding this mark, underscoring its size, influence, and dominance within the utilities-regulated gas industry. It plays a crucial role in regional energy delivery while navigating the clean energy transition and regulatory environment.
