401(k) · DOL Form 5500 · 2024

Nisource Inc 401(k) Plan

Data updated 2026-08-25

$2.0B
Total assets Very large vs avg
7,619
Participants Very large workforce
99th
Percentile by assets National rank
$266,829
Avg per participant High balance/head
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Official DOL plan name: Nisource Inc Retirement Savings Plan · Sponsored by Nisource Inc · Indiana · Utilities

$2.0B in assets, 7,619 participants

Nisource Inc's Nisource Inc Retirement Savings Plan reported $2.0B in total assets and 7,619 participants in its 2024 DOL Form 5500 filing, ranking in the 99th percentile by assets among filed plans. Figures are as reported by the plan sponsor to the Department of Labor, not audited or endorsed by PlainRetire.

  • #682 in Utilities (732 peers)

Coverage in Indiana

Nisource Inc Retirement Savings Plan covers 7,619 participants in Indiana, 14x the typical Indiana plan (state average ~541 per filing). Assets: $2.0B.

#682
in Utilities (732 peers)
+17.5%
assets growth YoY
20×
vs typical plan assets (national mean)

Nisource Inc Retirement Savings Plan's outsized position by total assets

Nisource Inc Retirement Savings Plan vs every filed plan by assets

End-of-year total assets · plan year 2024 · DOL Form 5500

$2,032,972,811 Top 1% higher than 99% of 123,620 filed plans

This plan $0 $2,050,000,000 every filed plan with reported assets, bucketed by value

Dashed line + filled bar = this entry, among filed plans.

Source U.S. Department of Labor Form 5500 filings (EBSA) · plan year 2024

Nisource Inc Retirement Savings Plan's large-plan peer group by participant headcount

Plan-year 2024 Form 5500 filings with a reported participant count, partitioned by headcount band, not by assets. Nisource Inc Retirement Savings Plan lands in the large band (7,619 participants).

What changed between DOL Form 5500 filings

plan year 2023 → plan year 2024

  • Nisource Inc Retirement Savings Plan reported net income rose from $219M in the plan year 2023 filing to $303M in the plan year 2024 filing.
  • Nisource Inc Retirement Savings Plan end-of-year assets rose from $1.7B in the plan year 2023 filing to $2.0B in the plan year 2024 filing.
  • Nisource Inc Retirement Savings Plan reported participants rose from 7,525 in the plan year 2023 filing to 7,619 in the plan year 2024 filing.

See the national 2023→2024 release diff →

EBSA filing schedule strip

Filing strip 352108964 · Nisource Inc PY 2024 · 401(k)

Nisource Inc Retirement Savings Plan · $2.0B · 7,619 · 99th

  • EOY $2.0B
  • EOY 7,619
  • EOY 99th
  • EOY 401(k)
  • EOY near Oshkosh Corporation and Affiliates Tax-Deferred Investment Plan
  • EOY ind #682

Stamps derive from this plan's Form 5500 line items (assets, participants, type, EIN, cohort placement) - not a quality rating of the sponsor. Read with Utilities retirement plans → · Plans in Indiana →

Nisource Inc Retirement Savings Plan in the asset neighbourhood

L'oreal USA, Inc. Employee Retirement Savings PlanL'oreal USA, Inc. Employee R…$2.0BLand O'lakes, Inc. Employee Savings and Supplemental Retirement PlanLand O'lakes, Inc. Employee …$2.0BNisource Inc Retirement Savings PlanNisource Inc Retirement Savi…$2.0BOshkosh Corporation and Affiliates Tax-Deferred Investment PlanOshkosh Corporation and Affi…$2.0BWestlake Savings Plan$2.0B
End-of-year total assets ($B) among Nisource Inc Retirement Savings Plan and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2024.

Indiana filing particulars

Total Assets (Beginning of Year)$1.7B
Net Assets (End of Year)$2.0B
Net Income$303M
Employer EIN352108964
Plan Effective Date1958-09-01
Filing StatusFILING RECEIVED

Sponsor Plan History (Nisource Inc)

Sponsor-wide plan assets over time

All Nisource Inc plans reported in each filing year

Latest sponsor-wide plan assets
$2.4B 25.69694315937217% vs 2022
2024 filing year
$1.8B$2B$2.2B$2.4B$2.6B 202220232024 $1.88B $2.37B ▲ +26.1%
Year Plans Participants Total Assets
2022 2 8,886 $1.9B
2023 2 8,727 $2.1B
2024 2 8,722 $2.4B

Nearby 401(k) Plans in Indiana

Peer 401(k) plans, same state, same plan type, ranked by total assets.

Nisource Inc Retirement Savings Plan vs. nearby 401(k) plans in Indiana, assets vs. participants Scatter plot of 6 data points. 020000400006000080000 051015 Total assets ($B) Participants Nisource Inc Retirement Savings Plan, Total assets ($B): 2.032972811 · Participants: 7619Nisource Inc Retirement Savings PlanThe Lilly Employee 401(k) Plan, Total assets ($B): 13.056609955 · Participants: 19977The Lilly Employee 401(k) PlanElevance Health 401(k) Plan, Total assets ($B): 12.109864062 · Participants: 73120Elevance Health 401(k) PlanCummins Retirement and Savings Plan, Total assets ($B): 6.366370789 · Participants: 30272Cummins Retirement and Savings PlanIu Health 401(k) Savings Plan, Total assets ($B): 4.481656061 · Participants: 38460Iu Health 401(k) Savings PlanSteel Dynamics, Inc. Profit Sharing and Retirement Savings Plan, Total assets ($B): 2.996436059 · Participants: 9385Steel Dynamics, Inc. Profit Sharing and Retirement Savings Plan
Nisource Inc Retirement Savings Plan vs. nearby 401(k) plans in Indiana, assets vs. participants

Scale composition for Nisource Inc Retirement Savings Plan

Nisource Inc Retirement Savings Plan reports $2.0B in end-of-year assets across 7,619 participants (0.017% of the $12.3T held by all Form 5500 filers in the national rollup , and 0.008% of 93,925,755 covered participants) - about $266,829 per participant (1.9x the national average assets-per-participant) . Net income for plan year 2024 was $303M.

This plan identity (EIN 352108964, plan #005) has 3 Form 5500 filings on file from 2022 to 2024 , with end-of-year assets moving from $1.5B to $2.0B (+34.5%) while covered participants moved from 7,561 to 7,619 . Single-year sparse filers cannot show that trail.

Plan year Participants EOY assets Filing
2022 7,561 $1.5B Open filing
2023 7,525 $1.7B Open filing
2024 · index core 7,619 $2.0B This page

The same sponsor also keeps 1 other index-core plan on PlainRetire:

Nisource Inc Retirement Savings Plan's out-of-state 401(k) peers by assets and headcount

Outside Indiana, the nearest 401(k) by assets is Oshkosh Corporation and Affiliates Tax-Deferred Investment Plan in WI ($2.0B); by covered participants it is Enterprise 401(k) Plan in TX (7,618 participants). Same-state nearby plans are listed separately above.

Similar participant headcount

Nearest other-state filings by covered participants (7,619 participants); asset peers above are excluded.

DOL Form 5500 plan year 2024. Asset totals can differ widely at the same headcount; neither axis is a quality rating.

Frequently Asked Questions

How did Nisource Inc Retirement Savings Plan assets move in 2024?
Nisource Inc Retirement Savings Plan grew sharply - up 17.5% during 2024, from $1.7B to $2.0B. Reported net income was $303M.
How have Nisource Inc plan assets changed over time?
Across 3 plan years on file (2022-2024), Nisource Inc's sponsor-wide assets grew 25.7%, from $1.9B to $2.4B.
Where does Nisource Inc Retirement Savings Plan rank by assets among Form 5500 filers?
Nisource Inc Retirement Savings Plan ranks in the 99th percentile by end-of-year assets among 123,622 plans that reported assets for plan year 2024 (among the largest 1% of all filed plans).
Which 401(k) plans are similar in size to Nisource Inc Retirement Savings Plan?
Among 401(k) plans in other states, the closest by assets is Oshkosh Corporation and Affiliates Tax-Deferred Investment Plan in WI ($2.0B, 12,511 participants).
Which 401(k) plans cover a similar participant headcount to Nisource Inc Retirement Savings Plan?
Among 401(k) plans in other states, the closest by covered participants is Enterprise 401(k) Plan in TX (7,618 participants, $2.6B in assets).