NiSource

In the late 19th century, the energy landscape in America was a patchwork of local gas and utility ventures. A handful of founding companies recognized a simple truth: communities could not prosper when energy infrastructure was unreliable, fragmented, or hard to access. From that moment of insight emerged a lineage of mergers, spinoffs, and steady investment that would shape NiSource and its legacy of Columbia Gas and NIPSCO. Over more than a century, NiSource's predecessors laid the groundwork for a network that would eventually provide safe, reliable natural gas and electric service to millions of customers across six states. Today NiSource remains rooted in those early ambitions, investing in pipelines, distribution, and grid modernization while upholding the standards of a fully regulated utility, with a headquarters in Merrillville, Indiana and a workforce of about 7,700 neighbors.

From its 1847 roots to the present, NiSource has grown through strategic transformations - most notably the 2000 merger that formed NiSource, the 2015 separation from Columbia Pipeline Group, and ongoing commitments to safety, reliability, and sustainable energy. The company serves nearly four million customers under the Columbia Gas and NIPSCO brands, and it operates with a focus on customer service, community investment, and governance that supports long-term value for customers and shareholders alike. As it looks to the energy future, NiSource continues to balance regulated earnings with infrastructure investment, regulatory partnerships, and a culture that emphasizes safety, inclusion, and responsible growth.