NiSource
NiSource is a Enterprise, Infrastructure service, founded in 1912, headquartered in Merrillville, Indiana, United States.
About
What NiSource is
Operates natural gas distribution and electric transmission infrastructure serving millions of customers across Indiana, Ohio, Pennsylvania, Maryland, Kentucky, and Virginia through regulated utility subsidiaries including NIPSCO and Columbia Gas.
EnterpriseInfrastructure
Public company
NiSource on the market
Formerly: NISOURCE INC/DE (2000 – 2019) · NEW NISOURCE INC (2000)
Annual Revenue
$6.5B
2025 fiscal year
Ticker
NI
Net Income
$0.9B
2025 fiscal year
Operating Income
$1.8B
2025 fiscal year
Shares Out.
479.4M
as of 2026
Industry
Electric & Other Services Combined
SIC 4931
At a glance
| Fact | Value |
|---|---|
| Official site | https://nisource.com |
| Status coverage | Public status page |
| Founded | 1912 |
| Headquarters | Merrillville, Indiana, United States |
| Ticker | NI |
| Categories | Enterprise, Infrastructure |