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Side-by-side financial comparison of FEDERAL SIGNAL CORP (FSS) and NorthWestern Energy Group, Inc. (NWE). Click either name above to swap in a different company.

FEDERAL SIGNAL CORP is the larger business by last-quarter revenue ($597.1M vs $414.3M, roughly 1.4× NorthWestern Energy Group, Inc.). NorthWestern Energy Group, Inc. runs the higher net margin — 10.8% vs 10.2%, a 0.6% gap on every dollar of revenue. On growth, FEDERAL SIGNAL CORP posted the faster year-over-year revenue change (26.5% vs 10.9%). FEDERAL SIGNAL CORP produced more free cash flow last quarter ($89.5M vs $-93.7M). Over the past eight quarters, FEDERAL SIGNAL CORP's revenue compounded faster (18.5% CAGR vs -6.6%).

The Federal Signal Company was an American manufacturer of railway signaling equipment in the early 20th century. It was located in Albany, New York.

NorthWestern Energy Group, Inc. is a utility company that serves South Dakota, Nebraska, and Montana that is based in Sioux Falls. As of 2019, the company serves approximately 718,000 customers. The company's corporate headquarters are located in Sioux Falls while the headquarters for the South Dakota operations are in Huron, South Dakota.

FSS vs NWE — Head-to-Head

Bigger by revenue
FSS
FSS
1.4× larger
FSS
$597.1M
$414.3M
NWE
Growing faster (revenue YoY)
FSS
FSS
+15.6% gap
FSS
26.5%
10.9%
NWE
Higher net margin
NWE
NWE
0.6% more per $
NWE
10.8%
10.2%
FSS
More free cash flow
FSS
FSS
$183.2M more FCF
FSS
$89.5M
$-93.7M
NWE
Faster 2-yr revenue CAGR
FSS
FSS
Annualised
FSS
18.5%
-6.6%
NWE

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
FSS
FSS
NWE
NWE
Revenue
$597.1M
$414.3M
Net Profit
$60.8M
$44.7M
Gross Margin
28.4%
Operating Margin
14.0%
14.5%
Net Margin
10.2%
10.8%
Revenue YoY
26.5%
10.9%
Net Profit YoY
21.6%
-44.5%
EPS (diluted)
$0.99
$0.72

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
FSS
FSS
NWE
NWE
Q4 25
$597.1M
$414.3M
Q3 25
$555.0M
$387.0M
Q2 25
$564.6M
$342.7M
Q1 25
$463.8M
$466.6M
Q4 24
$472.0M
$373.5M
Q3 24
$474.2M
$345.2M
Q2 24
$490.4M
$319.9M
Q1 24
$424.9M
$475.3M
Net Profit
FSS
FSS
NWE
NWE
Q4 25
$60.8M
$44.7M
Q3 25
$68.1M
$38.2M
Q2 25
$71.4M
$21.2M
Q1 25
$46.3M
$76.9M
Q4 24
$50.0M
$80.6M
Q3 24
$53.9M
$46.8M
Q2 24
$60.8M
$31.7M
Q1 24
$51.6M
$65.1M
Gross Margin
FSS
FSS
NWE
NWE
Q4 25
28.4%
Q3 25
29.1%
Q2 25
30.0%
Q1 25
28.2%
Q4 24
28.1%
Q3 24
29.6%
Q2 24
29.4%
Q1 24
27.3%
Operating Margin
FSS
FSS
NWE
NWE
Q4 25
14.0%
14.5%
Q3 25
16.9%
20.7%
Q2 25
17.3%
17.7%
Q1 25
14.2%
26.7%
Q4 24
14.9%
24.6%
Q3 24
16.0%
19.7%
Q2 24
16.5%
19.3%
Q1 24
12.8%
21.5%
Net Margin
FSS
FSS
NWE
NWE
Q4 25
10.2%
10.8%
Q3 25
12.3%
9.9%
Q2 25
12.6%
6.2%
Q1 25
10.0%
16.5%
Q4 24
10.6%
21.6%
Q3 24
11.4%
13.6%
Q2 24
12.4%
9.9%
Q1 24
12.1%
13.7%
EPS (diluted)
FSS
FSS
NWE
NWE
Q4 25
$0.99
$0.72
Q3 25
$1.11
$0.62
Q2 25
$1.16
$0.35
Q1 25
$0.75
$1.25
Q4 24
$0.80
$1.31
Q3 24
$0.87
$0.76
Q2 24
$0.99
$0.52
Q1 24
$0.84
$1.06

Balance Sheet & Financial Strength

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

Metric
FSS
FSS
NWE
NWE
Cash + ST InvestmentsLiquidity on hand
$63.7M
$8.8M
Total DebtLower is stronger
$564.6M
$3.3B
Stockholders' EquityBook value
$1.4B
$2.9B
Total Assets
$2.4B
$8.5B
Debt / EquityLower = less leverage
0.41×
1.14×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
FSS
FSS
NWE
NWE
Q4 25
$63.7M
$8.8M
Q3 25
$54.4M
$6.2M
Q2 25
$64.7M
$2.9M
Q1 25
$57.5M
$56.0M
Q4 24
$91.1M
$4.3M
Q3 24
$73.7M
$2.5M
Q2 24
$48.6M
$6.4M
Q1 24
$48.9M
$4.2M
Total Debt
FSS
FSS
NWE
NWE
Q4 25
$564.6M
$3.3B
Q3 25
$201.2M
Q2 25
$258.3M
Q1 25
$266.9M
Q4 24
$204.4M
$3.0B
Q3 24
$223.3M
Q2 24
$248.8M
Q1 24
$266.8M
Stockholders' Equity
FSS
FSS
NWE
NWE
Q4 25
$1.4B
$2.9B
Q3 25
$1.3B
$2.9B
Q2 25
$1.3B
$2.9B
Q1 25
$1.2B
$2.9B
Q4 24
$1.2B
$2.9B
Q3 24
$1.1B
$2.8B
Q2 24
$1.1B
$2.8B
Q1 24
$1.0B
$2.8B
Total Assets
FSS
FSS
NWE
NWE
Q4 25
$2.4B
$8.5B
Q3 25
$1.9B
$8.3B
Q2 25
$1.9B
$8.1B
Q1 25
$1.9B
$8.1B
Q4 24
$1.8B
$8.0B
Q3 24
$1.7B
$7.9B
Q2 24
$1.7B
$7.7B
Q1 24
$1.7B
$7.6B
Debt / Equity
FSS
FSS
NWE
NWE
Q4 25
0.41×
1.14×
Q3 25
0.15×
Q2 25
0.20×
Q1 25
0.22×
Q4 24
0.17×
1.05×
Q3 24
0.19×
Q2 24
0.23×
Q1 24
0.26×

Cash Flow & Capital Efficiency

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

Metric
FSS
FSS
NWE
NWE
Operating Cash FlowLast quarter
$97.2M
$56.2M
Free Cash FlowOCF − Capex
$89.5M
$-93.7M
FCF MarginFCF / Revenue
15.0%
-22.6%
Capex IntensityCapex / Revenue
1.3%
36.2%
Cash ConversionOCF / Net Profit
1.60×
1.26×
TTM Free Cash FlowTrailing 4 quarters
$227.1M
$-130.0M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
FSS
FSS
NWE
NWE
Q4 25
$97.2M
$56.2M
Q3 25
$61.1M
$126.7M
Q2 25
$59.7M
$58.2M
Q1 25
$36.7M
$153.4M
Q4 24
$90.6M
$62.8M
Q3 24
$68.8M
$120.0M
Q2 24
$40.6M
$62.3M
Q1 24
$31.3M
$161.7M
Free Cash Flow
FSS
FSS
NWE
NWE
Q4 25
$89.5M
$-93.7M
Q3 25
$54.1M
$-26.9M
Q2 25
$52.4M
$-70.6M
Q1 25
$31.1M
$61.3M
Q4 24
$82.1M
$-85.9M
Q3 24
$60.9M
$-33.2M
Q2 24
$24.8M
$-76.3M
Q1 24
$22.9M
$52.9M
FCF Margin
FSS
FSS
NWE
NWE
Q4 25
15.0%
-22.6%
Q3 25
9.7%
-6.9%
Q2 25
9.3%
-20.6%
Q1 25
6.7%
13.1%
Q4 24
17.4%
-23.0%
Q3 24
12.8%
-9.6%
Q2 24
5.1%
-23.9%
Q1 24
5.4%
11.1%
Capex Intensity
FSS
FSS
NWE
NWE
Q4 25
1.3%
36.2%
Q3 25
1.3%
39.7%
Q2 25
1.3%
37.6%
Q1 25
1.2%
19.7%
Q4 24
1.8%
39.8%
Q3 24
1.7%
44.4%
Q2 24
3.2%
43.3%
Q1 24
2.0%
22.9%
Cash Conversion
FSS
FSS
NWE
NWE
Q4 25
1.60×
1.26×
Q3 25
0.90×
3.31×
Q2 25
0.84×
2.74×
Q1 25
0.79×
1.99×
Q4 24
1.81×
0.78×
Q3 24
1.28×
2.56×
Q2 24
0.67×
1.97×
Q1 24
0.61×
2.48×

Financial Flow Comparison

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

Revenue Breakdown by Segment

FSS
FSS

Vehiclesandequipment$403.4M68%
Parts$66.8M11%
Publicsafetyandsecurityequipment$62.2M10%
Rentalincome$19.0M3%
Industrialsignalingequipment$18.2M3%
Other$14.9M2%
Warningsystems$12.6M2%

NWE
NWE

Electricity Us Regulated$315.3M76%
Other Tariff Based Revenue$50.5M12%
Transmission Customers$28.4M7%
Industrial Customers$11.0M3%
Other Customers$6.1M1%

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