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Side-by-side financial comparison of NiSource (NI) and Steris (STE). Click either name above to swap in a different company.

NiSource is the larger business by last-quarter revenue ($1.9B vs $1.5B, roughly 1.3× Steris). NiSource runs the higher net margin — 13.7% vs 12.9%, a 0.8% gap on every dollar of revenue. On growth, NiSource posted the faster year-over-year revenue change (22.5% vs 9.2%). Steris produced more free cash flow last quarter ($199.5M vs $-133.7M). Over the past eight quarters, Steris's revenue compounded faster (15.8% CAGR vs 7.2%).

NiSource Inc. is one of the largest fully regulated utility companies in the United States, serving approximately 3.5 million natural gas customers and 500,000 electric customers across six states through its local Columbia Gas and NIPSCO brands. The company, based in Merrillville, Indiana, has more than 8,000 employees. As of 2018, NiSource is the sole Indiana-based utility company.

Steris plc is an American-Irish-based medical equipment company specializing in sterilization and surgical products for the US healthcare system. Steris is operationally headquartered in Mentor, Ohio, and has been legally registered in Dublin, Ireland, for tax purposes since 2018. Previously the company was registered in the United Kingdom from 2014 to 2018.

NI vs STE — Head-to-Head

Bigger by revenue
NI
NI
1.3× larger
NI
$1.9B
$1.5B
STE
Growing faster (revenue YoY)
NI
NI
+13.4% gap
NI
22.5%
9.2%
STE
Higher net margin
NI
NI
0.8% more per $
NI
13.7%
12.9%
STE
More free cash flow
STE
STE
$333.2M more FCF
STE
$199.5M
$-133.7M
NI
Faster 2-yr revenue CAGR
STE
STE
Annualised
STE
15.8%
7.2%
NI

Income Statement — Q4 FY2025 vs Q3 FY2026

Metric
NI
NI
STE
STE
Revenue
$1.9B
$1.5B
Net Profit
$257.8M
$192.9M
Gross Margin
43.8%
Operating Margin
27.3%
18.3%
Net Margin
13.7%
12.9%
Revenue YoY
22.5%
9.2%
Net Profit YoY
15.1%
11.2%
EPS (diluted)
$0.53
$1.96

Green = leading value per metric. Periods may differ when fiscal calendars don't align.

8-Quarter Revenue & Profit Trend

Side-by-side quarterly history. Quarters aligned by calendar period so offset fiscal years line up.

Revenue
NI
NI
STE
STE
Q4 25
$1.9B
$1.5B
Q3 25
$1.2B
$1.5B
Q2 25
$1.2B
$1.4B
Q1 25
$2.1B
$1.5B
Q4 24
$1.5B
$1.4B
Q3 24
$1.0B
$1.3B
Q2 24
$1.1B
$1.3B
Q1 24
$1.6B
$1.1B
Net Profit
NI
NI
STE
STE
Q4 25
$257.8M
$192.9M
Q3 25
$94.7M
$191.9M
Q2 25
$102.2M
$177.4M
Q1 25
$474.8M
$145.7M
Q4 24
$223.9M
$173.5M
Q3 24
$85.7M
$150.0M
Q2 24
$85.8M
$145.4M
Q1 24
$365.0M
$-1.4M
Gross Margin
NI
NI
STE
STE
Q4 25
43.8%
Q3 25
44.2%
Q2 25
45.1%
Q1 25
43.3%
Q4 24
44.5%
Q3 24
43.6%
Q2 24
44.7%
Q1 24
40.2%
Operating Margin
NI
NI
STE
STE
Q4 25
27.3%
18.3%
Q3 25
24.0%
18.2%
Q2 25
21.1%
17.7%
Q1 25
35.3%
14.6%
Q4 24
27.1%
17.9%
Q3 24
20.9%
16.5%
Q2 24
22.5%
14.5%
Q1 24
35.5%
22.0%
Net Margin
NI
NI
STE
STE
Q4 25
13.7%
12.9%
Q3 25
7.6%
13.1%
Q2 25
8.2%
12.8%
Q1 25
22.1%
9.8%
Q4 24
14.5%
12.7%
Q3 24
8.2%
11.3%
Q2 24
8.1%
11.4%
Q1 24
22.2%
-0.1%
EPS (diluted)
NI
NI
STE
STE
Q4 25
$0.53
$1.96
Q3 25
$0.20
$1.94
Q2 25
$0.22
$1.79
Q1 25
$1.00
$1.48
Q4 24
$0.47
$1.75
Q3 24
$0.19
$1.51
Q2 24
$0.19
$1.46
Q1 24
$0.77
$-0.02

Balance Sheet & Financial Strength

Snapshot of each company's liquidity, leverage and book value from the latest quarter.

Metric
NI
NI
STE
STE
Cash + ST InvestmentsLiquidity on hand
$110.1M
$423.7M
Total DebtLower is stronger
$15.5B
$1.9B
Stockholders' EquityBook value
$9.5B
$7.2B
Total Assets
$35.9B
$10.6B
Debt / EquityLower = less leverage
1.64×
0.27×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
NI
NI
STE
STE
Q4 25
$110.1M
$423.7M
Q3 25
$95.0M
$319.2M
Q2 25
$335.4M
$279.7M
Q1 25
$259.4M
$171.7M
Q4 24
$156.6M
$155.2M
Q3 24
$126.2M
$172.2M
Q2 24
$101.2M
$198.3M
Q1 24
$102.2M
$207.0M
Total Debt
NI
NI
STE
STE
Q4 25
$15.5B
$1.9B
Q3 25
$14.5B
$1.9B
Q2 25
$14.5B
$1.9B
Q1 25
$12.8B
$1.9B
Q4 24
$12.1B
$2.0B
Q3 24
$12.1B
$2.2B
Q2 24
$12.8B
$2.2B
Q1 24
$11.7B
$3.1B
Stockholders' Equity
NI
NI
STE
STE
Q4 25
$9.5B
$7.2B
Q3 25
$9.1B
$7.0B
Q2 25
$8.9B
$7.0B
Q1 25
$8.9B
$6.6B
Q4 24
$8.7B
$6.4B
Q3 24
$8.3B
$6.6B
Q2 24
$7.9B
$6.4B
Q1 24
$7.9B
$6.3B
Total Assets
NI
NI
STE
STE
Q4 25
$35.9B
$10.6B
Q3 25
$34.4B
$10.4B
Q2 25
$34.0B
$10.4B
Q1 25
$33.1B
$10.1B
Q4 24
$31.8B
$10.0B
Q3 24
$30.8B
$10.2B
Q2 24
$29.9B
$10.1B
Q1 24
$29.3B
$11.1B
Debt / Equity
NI
NI
STE
STE
Q4 25
1.64×
0.27×
Q3 25
1.59×
0.27×
Q2 25
1.63×
0.27×
Q1 25
1.44×
0.29×
Q4 24
1.39×
0.32×
Q3 24
1.45×
0.33×
Q2 24
1.63×
0.35×
Q1 24
1.48×
0.50×

Cash Flow & Capital Efficiency

How much cash each business actually produces after reinvestment. Cash flow is harder to manipulate than net income.

Metric
NI
NI
STE
STE
Operating Cash FlowLast quarter
$712.6M
$298.2M
Free Cash FlowOCF − Capex
$-133.7M
$199.5M
FCF MarginFCF / Revenue
-7.1%
13.3%
Capex IntensityCapex / Revenue
44.9%
6.6%
Cash ConversionOCF / Net Profit
2.76×
1.55×
TTM Free Cash FlowTrailing 4 quarters
$-420.0M
$917.1M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
NI
NI
STE
STE
Q4 25
$712.6M
$298.2M
Q3 25
$467.9M
$287.8M
Q2 25
$495.4M
$420.0M
Q1 25
$686.4M
$260.8M
Q4 24
$539.8M
$332.8M
Q3 24
$340.0M
$250.7M
Q2 24
$445.5M
$303.7M
Q1 24
$456.2M
$254.8M
Free Cash Flow
NI
NI
STE
STE
Q4 25
$-133.7M
$199.5M
Q3 25
$-172.6M
$201.3M
Q2 25
$-162.8M
$326.4M
Q1 25
$49.1M
$189.9M
Q4 24
$-220.2M
$243.6M
Q3 24
$-294.7M
$148.8M
Q2 24
$-184.3M
$195.7M
Q1 24
$-133.3M
$163.3M
FCF Margin
NI
NI
STE
STE
Q4 25
-7.1%
13.3%
Q3 25
-13.9%
13.8%
Q2 25
-13.1%
23.5%
Q1 25
2.3%
12.8%
Q4 24
-14.3%
17.8%
Q3 24
-28.2%
11.2%
Q2 24
-17.5%
15.3%
Q1 24
-8.1%
14.6%
Capex Intensity
NI
NI
STE
STE
Q4 25
44.9%
6.6%
Q3 25
51.6%
5.9%
Q2 25
52.8%
6.7%
Q1 25
29.6%
4.8%
Q4 24
49.4%
6.5%
Q3 24
60.7%
7.7%
Q2 24
59.7%
8.4%
Q1 24
35.9%
8.2%
Cash Conversion
NI
NI
STE
STE
Q4 25
2.76×
1.55×
Q3 25
4.94×
1.50×
Q2 25
4.85×
2.37×
Q1 25
1.45×
1.79×
Q4 24
2.41×
1.92×
Q3 24
3.97×
1.67×
Q2 24
5.19×
2.09×
Q1 24
1.25×

Financial Flow Comparison

Revenue → gross profit → operating profit → net profit for each company.

Revenue Breakdown by Segment

NI
NI

Residential$703.6M37%
Ni Source Electric Generation And Power Delivery$525.6M28%
NIPSCO Gas Distribution$348.1M18%
Commercial$235.9M13%
Industrial$45.9M2%
Offsystem$16.9M1%
Misc.$9.6M1%
Related Party$3.3M0%

STE
STE

Servicerevenues$404.7M27%
Consumablerevenues$387.1M26%
Applied Sterilization Technologies$286.6M19%
Capitalequipmentrevenues$272.1M18%
Life Science$145.8M10%

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