NiSource NI Business Segments
| TTM Q1 '26 | TTM Q4 '25 | TTM Q3 '25 | TTM Q2 '25 | TTM Q1 '25 | ||
|---|---|---|---|---|---|---|
| Customer revenues by Business | ||||||
| Columbia Operations | $3.4B+17.3% | $3.31B+28.9% | $3.08B+24.3% | $3.01B+21.9% | $2.9B+15.0% | |
| Corporate and Other | $1.52M+51.8% | $1.32M— | $4.32M+101% | $3.42M+101% | $1M+101% | |
| NIPSCO Operations | $3.2B+15.5% | $3.11B+20.2% | $2.98B+18.0% | $2.84B+13.3% | $2.77B+10.6% |
Chart any of these lines over time, or line them up against competitors.
Compare these in charts →Questions, answered.
- How does NiSource break its business down?
- NiSource (NI) reports customer revenues by business across 3 parts — Columbia Operations, Corporate and Other and NIPSCO Operations. Each is extracted from the segment footnotes and tracked over time.
- Where does NiSource's segment data come from?
- Segment breakdowns are pulled from the segment footnotes in NiSource's SEC filings (the XBRL dimensional tags), so every line ties back to a reported figure. Switch between quarterly, annual, and TTM, or open any segment for its full history.
