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Side-by-side financial comparison of Birkenstock Holding plc (BIRK) and FEDERAL SIGNAL CORP (FSS). Click either name above to swap in a different company.

FEDERAL SIGNAL CORP is the larger business by last-quarter revenue ($597.1M vs $526.3M, roughly 1.1× Birkenstock Holding plc). Birkenstock Holding plc runs the higher net margin — 19.3% vs 10.2%, a 9.1% gap on every dollar of revenue. Over the past eight quarters, Birkenstock Holding plc's revenue compounded faster (26.8% CAGR vs 18.5%).

Birkenstock Holding plc is a German shoe manufacturer known for its sandals and other shoes notable for contoured cork footbeds (soles), made with layers of suede and jute, which conform to the shape of their wearers' feet. Founded in 1774 by Johann Adam Birkenstock and headquartered in Neustadt (Wied), Rhineland-Palatinate, Germany, the company's original purpose was to create shoes that support and contour the foot, compared to the flat soles of many shoes during that time. In 1896, the Fus...

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

BIRK vs FSS — Head-to-Head

Bigger by revenue
FSS
FSS
1.1× larger
FSS
$597.1M
$526.3M
BIRK
Higher net margin
BIRK
BIRK
9.1% more per $
BIRK
19.3%
10.2%
FSS
Faster 2-yr revenue CAGR
BIRK
BIRK
Annualised
BIRK
26.8%
18.5%
FSS

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
BIRK
BIRK
FSS
FSS
Revenue
$526.3M
$597.1M
Net Profit
$101.4M
$60.8M
Gross Margin
62.8%
28.4%
Operating Margin
23.0%
14.0%
Net Margin
19.3%
10.2%
Revenue YoY
26.5%
Net Profit YoY
21.6%
EPS (diluted)
$0.99

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
BIRK
BIRK
FSS
FSS
Q4 25
$597.1M
Q3 25
$526.3M
$555.0M
Q2 25
$685.8M
$564.6M
Q1 25
$620.3M
$463.8M
Q4 24
$390.7M
$472.0M
Q3 24
$455.8M
$474.2M
Q2 24
$609.9M
$490.4M
Q1 24
$519.7M
$424.9M
Net Profit
BIRK
BIRK
FSS
FSS
Q4 25
$60.8M
Q3 25
$101.4M
$68.1M
Q2 25
$139.6M
$71.4M
Q1 25
$113.5M
$46.3M
Q4 24
$21.7M
$50.0M
Q3 24
$53.9M
Q2 24
$80.6M
$60.8M
Q1 24
$77.4M
$51.6M
Gross Margin
BIRK
BIRK
FSS
FSS
Q4 25
28.4%
Q3 25
62.8%
29.1%
Q2 25
60.5%
30.0%
Q1 25
57.7%
28.2%
Q4 24
60.3%
28.1%
Q3 24
29.6%
Q2 24
59.5%
29.4%
Q1 24
56.3%
27.3%
Operating Margin
BIRK
BIRK
FSS
FSS
Q4 25
14.0%
Q3 25
23.0%
16.9%
Q2 25
31.2%
17.3%
Q1 25
30.5%
14.2%
Q4 24
17.7%
14.9%
Q3 24
16.0%
Q2 24
27.5%
16.5%
Q1 24
27.5%
12.8%
Net Margin
BIRK
BIRK
FSS
FSS
Q4 25
10.2%
Q3 25
19.3%
12.3%
Q2 25
20.3%
12.6%
Q1 25
18.3%
10.0%
Q4 24
5.6%
10.6%
Q3 24
11.4%
Q2 24
13.2%
12.4%
Q1 24
14.9%
12.1%
EPS (diluted)
BIRK
BIRK
FSS
FSS
Q4 25
$0.99
Q3 25
$1.11
Q2 25
$1.16
Q1 25
$0.75
Q4 24
$0.80
Q3 24
$0.87
Q2 24
$0.99
Q1 24
$0.84

Balance Sheet & Financial Strength

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

Metric
BIRK
BIRK
FSS
FSS
Cash + ST InvestmentsLiquidity on hand
$355.4M
$63.7M
Total DebtLower is stronger
$564.6M
Stockholders' EquityBook value
$2.9B
$1.4B
Total Assets
$5.3B
$2.4B
Debt / EquityLower = less leverage
0.41×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
BIRK
BIRK
FSS
FSS
Q4 25
$63.7M
Q3 25
$355.4M
$54.4M
Q2 25
$282.8M
$64.7M
Q1 25
$254.2M
$57.5M
Q4 24
$322.5M
$91.1M
Q3 24
$384.3M
$73.7M
Q2 24
$436.7M
$48.6M
Q1 24
$189.8M
$48.9M
Total Debt
BIRK
BIRK
FSS
FSS
Q4 25
$564.6M
Q3 25
$201.2M
Q2 25
$258.3M
Q1 25
$266.9M
Q4 24
$204.4M
Q3 24
$223.3M
Q2 24
$248.8M
Q1 24
$266.8M
Stockholders' Equity
BIRK
BIRK
FSS
FSS
Q4 25
$1.4B
Q3 25
$2.9B
$1.3B
Q2 25
$2.8B
$1.3B
Q1 25
$3.0B
$1.2B
Q4 24
$3.0B
$1.2B
Q3 24
$2.8B
$1.1B
Q2 24
$2.8B
$1.1B
Q1 24
$2.7B
$1.0B
Total Assets
BIRK
BIRK
FSS
FSS
Q4 25
$2.4B
Q3 25
$5.3B
$1.9B
Q2 25
$5.3B
$1.9B
Q1 25
$5.4B
$1.9B
Q4 24
$5.4B
$1.8B
Q3 24
$5.3B
$1.7B
Q2 24
$5.4B
$1.7B
Q1 24
$5.2B
$1.7B
Debt / Equity
BIRK
BIRK
FSS
FSS
Q4 25
0.41×
Q3 25
0.15×
Q2 25
0.20×
Q1 25
0.22×
Q4 24
0.17×
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
BIRK
BIRK
FSS
FSS
Operating Cash FlowLast quarter
$415.0M
$97.2M
Free Cash FlowOCF − Capex
$89.5M
FCF MarginFCF / Revenue
15.0%
Capex IntensityCapex / Revenue
1.3%
Cash ConversionOCF / Net Profit
4.09×
1.60×
TTM Free Cash FlowTrailing 4 quarters
$227.1M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
BIRK
BIRK
FSS
FSS
Q4 25
$97.2M
Q3 25
$415.0M
$61.1M
Q2 25
$59.7M
Q1 25
$36.7M
Q4 24
$-12.6M
$90.6M
Q3 24
$463.0M
$68.8M
Q2 24
$40.6M
Q1 24
$31.3M
Free Cash Flow
BIRK
BIRK
FSS
FSS
Q4 25
$89.5M
Q3 25
$54.1M
Q2 25
$52.4M
Q1 25
$31.1M
Q4 24
$82.1M
Q3 24
$60.9M
Q2 24
$24.8M
Q1 24
$22.9M
FCF Margin
BIRK
BIRK
FSS
FSS
Q4 25
15.0%
Q3 25
9.7%
Q2 25
9.3%
Q1 25
6.7%
Q4 24
17.4%
Q3 24
12.8%
Q2 24
5.1%
Q1 24
5.4%
Capex Intensity
BIRK
BIRK
FSS
FSS
Q4 25
1.3%
Q3 25
1.3%
Q2 25
1.3%
Q1 25
1.2%
Q4 24
1.8%
Q3 24
1.7%
Q2 24
3.2%
Q1 24
2.0%
Cash Conversion
BIRK
BIRK
FSS
FSS
Q4 25
1.60×
Q3 25
4.09×
0.90×
Q2 25
0.84×
Q1 25
0.79×
Q4 24
-0.58×
1.81×
Q3 24
1.28×
Q2 24
0.67×
Q1 24
0.61×

Financial Flow Comparison

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

Revenue Breakdown by Segment

BIRK
BIRK

Segment breakdown not available.

FSS
FSS

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

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