How many employees work at NiSource?
NiSource, Inc. has 7,372 employees, according to Revelio Labs workforce intelligence data. The YoY growth rate is 0.2%.
Data source: Revelio Labs Coverage: Global workforce Latest update: December 2025
About NiSource
NiSource (NYSE: NI) helps energize the lives of its nearly 4 million natural gas and electric customers across six states. Our local utilities – Columbia Gas and NIPSCO – ensure that customers receive safe, reliable and affordable natural gas and electric service each and every day. Our business plan is focused on proactively investing in our energy infrastructure – approximately $1.4 billion a year – to ensure we meet and improve upon our customer commitments for the next 100 years. We employ more than 7,000 of our neighbors who are actively engaged in the communities we’re privileged to serve, making them great places to live and call home. NiSource is headquartered in Merrillville, Indiana – about 35 miles from Chicago – and we maintain a significant corporate presence in Columbus, Ohio. Our utility operations also span Kentucky, Maryland, Pennsylvania and Virginia.
As of December 2025
NiSource
workforce metrics
Headcount
7.4k
Avg. Salary
$87k
Tenure
5.2yr
Growth Rate
0.2%
Hiring Rate
Attrition Rate
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Employee Headcount
Interactive chart of NiSource annual worldwide employee count from 2023 to 2025.
- NiSource total number of employees in 2025 was 7,370, a 0.2% increase from 2024.
- NiSource total number of employees in 2024 was 7,354, a 2.7% increase from 2023.
- NiSource total number of employees in 2023 was 7,158, a 3.8% increase from 2022.
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Employee Geographic Breakdown
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Active Job Postings
Interactive chart of NiSource annual active job postings from 2023 to 2025.
- NiSource active job postings in 2025 was 128, a 53.7% decline from 2024.
- NiSource active job postings in 2024 was 222, a 46.9% decline from 2023.
- NiSource active job postings in 2023 was 358, a 72.2% increase from 2022.
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Employee Sentiment
Sentiment Topics
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