NISOURCE INC.
NiSource Inc. is one of the largest fully regulated utility companies in the United States, serving approximately 3.5 million natural gas customers and 500,000 electric customers across six states through its local Columbia Gas and NIPSCO brands. The company, based in Merrillville, Indiana, has more than 8,000 employees. As of 2018, NiSource is the sole Indiana-based utility company.
Basic company information
Each field links to its source. Financial figures retain their reporting periods; background references are identified in the source list.
- Business sectors
- public utility [1]
- Company / filing name
- NISOURCE INC. [2]
- Headquarters location
- Merrillville [1]
- Founded
- 1912 [1]
- Legal form
- Delaware corporation [1]
- Official website
- www.nisource.com ↗ [1]
- ISIN (reported securities)
- US65473P1057 [1]
- CIK
- 1111711 [2]
- Country in background record
- United States [1]
- Symbols / exchanges
- NI (NYSE) [2]
Company positioning and business
NiSource Inc. is one of the largest fully regulated utility companies in the United States, serving approximately 3.5 million natural gas customers and 500,000 electric customers across six states through its local Columbia Gas and NIPSCO brands. The company, based in Merrillville, Indiana, has more than 8,000 employees. As of 2018, NiSource is the sole Indiana-based utility company. [3]
Background text: Wikipedia contributors, NiSource. Selected introductory paragraphs, licensed under CC BY-SA 4.0. Official filing data is cited separately.
Financial year, securities and disclosures
Listed securities: NI (NYSE). Multiple symbols may represent different share classes or securities of the same registrant. [2]
History and key events
Founding / inception date recorded in Wikidata. [1]
Financial results and regulatory disclosures
No individual financial documents have been indexed yet. Open the source to consult company disclosures. [2]
Related entities and concepts
Frequently asked questions
When was NISOURCE INC. founded?
Founded: 1912. The linked source provides the background record. [1]
Where is the headquarters of NISOURCE INC.?
Headquarters location: Merrillville. The linked source provides the background record. [1]
Which business sectors are recorded for NISOURCE INC.?
Business sectors: public utility. The linked source provides the background record. [1]
Sources and review dates
- Wikidata — company background record (CC0) ↗
- Company identity and profile data ↗
- Wikipedia contributors — NiSource (CC BY-SA 4.0) ↗
Reviewed 23 October 2026. Financial periods and historical event dates are shown separately. Figures reflect their stated source dates; this page is not a live quote or investment recommendation.