1.Sales and profit
See section β- NiSource had $6.5B of revenue in fiscal 2025, up 23.5% on the year before. Over five years, revenue changed +7.8% a year on average.
- Its operating margin was 28.1%, up 0.6Β pts: of every 100 in sales, about 28 is left after running the business.
- NiSource made $930M of net profit in fiscal 2025. From fiscal 2016 to 2025, diluted EPS grew 7.5% a year.




