vs

Side-by-side financial comparison of Charles River Laboratories (CRL) and FEDERAL SIGNAL CORP (FSS). Click either name above to swap in a different company.

Charles River Laboratories is the larger business by last-quarter revenue ($994.2M vs $597.1M, roughly 1.7× FEDERAL SIGNAL CORP). FEDERAL SIGNAL CORP runs the higher net margin — 10.2% vs -27.8%, a 38.0% gap on every dollar of revenue. On growth, FEDERAL SIGNAL CORP posted the faster year-over-year revenue change (26.5% vs -0.8%). FEDERAL SIGNAL CORP produced more free cash flow last quarter ($89.5M vs $58.6M). Over the past eight quarters, FEDERAL SIGNAL CORP's revenue compounded faster (18.5% CAGR vs -0.9%).

Charles River Laboratories International, Inc. is an American pharmaceutical and biotechnology contract research organisation (CRO) headquartered in Wilmington, Massachusetts, United States. Founded in 1947, the company provides preclinical and clinical laboratory services for the development of new drugs, vaccines, and medical devices.

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

CRL vs FSS — Head-to-Head

Bigger by revenue
CRL
CRL
1.7× larger
CRL
$994.2M
$597.1M
FSS
Growing faster (revenue YoY)
FSS
FSS
+27.3% gap
FSS
26.5%
-0.8%
CRL
Higher net margin
FSS
FSS
38.0% more per $
FSS
10.2%
-27.8%
CRL
More free cash flow
FSS
FSS
$30.9M more FCF
FSS
$89.5M
$58.6M
CRL
Faster 2-yr revenue CAGR
FSS
FSS
Annualised
FSS
18.5%
-0.9%
CRL

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
CRL
CRL
FSS
FSS
Revenue
$994.2M
$597.1M
Net Profit
$-276.6M
$60.8M
Gross Margin
28.4%
Operating Margin
-28.5%
14.0%
Net Margin
-27.8%
10.2%
Revenue YoY
-0.8%
26.5%
Net Profit YoY
-28.9%
21.6%
EPS (diluted)
$-5.57
$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
CRL
CRL
FSS
FSS
Q4 25
$994.2M
$597.1M
Q3 25
$1.0B
$555.0M
Q2 25
$1.0B
$564.6M
Q1 25
$984.2M
$463.8M
Q4 24
$1.0B
$472.0M
Q3 24
$1.0B
$474.2M
Q2 24
$1.0B
$490.4M
Q1 24
$1.0B
$424.9M
Net Profit
CRL
CRL
FSS
FSS
Q4 25
$-276.6M
$60.8M
Q3 25
$54.4M
$68.1M
Q2 25
$52.3M
$71.4M
Q1 25
$25.5M
$46.3M
Q4 24
$-214.5M
$50.0M
Q3 24
$69.7M
$53.9M
Q2 24
$94.1M
$60.8M
Q1 24
$73.0M
$51.6M
Gross Margin
CRL
CRL
FSS
FSS
Q4 25
28.4%
Q3 25
29.1%
Q2 25
30.0%
Q1 25
28.2%
Q4 24
28.1%
Q3 24
34.6%
29.6%
Q2 24
34.5%
29.4%
Q1 24
34.1%
27.3%
Operating Margin
CRL
CRL
FSS
FSS
Q4 25
-28.5%
14.0%
Q3 25
13.3%
16.9%
Q2 25
9.7%
17.3%
Q1 25
7.6%
14.2%
Q4 24
-16.7%
14.9%
Q3 24
11.6%
16.0%
Q2 24
14.8%
16.5%
Q1 24
12.5%
12.8%
Net Margin
CRL
CRL
FSS
FSS
Q4 25
-27.8%
10.2%
Q3 25
5.4%
12.3%
Q2 25
5.1%
12.6%
Q1 25
2.6%
10.0%
Q4 24
-21.4%
10.6%
Q3 24
6.9%
11.4%
Q2 24
9.2%
12.4%
Q1 24
7.2%
12.1%
EPS (diluted)
CRL
CRL
FSS
FSS
Q4 25
$-5.57
$0.99
Q3 25
$1.10
$1.11
Q2 25
$1.06
$1.16
Q1 25
$0.50
$0.75
Q4 24
$-4.17
$0.80
Q3 24
$1.33
$0.87
Q2 24
$1.74
$0.99
Q1 24
$1.30
$0.84

Balance Sheet & Financial Strength

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

Metric
CRL
CRL
FSS
FSS
Cash + ST InvestmentsLiquidity on hand
$213.8M
$63.7M
Total DebtLower is stronger
$2.1B
$564.6M
Stockholders' EquityBook value
$3.2B
$1.4B
Total Assets
$7.1B
$2.4B
Debt / EquityLower = less leverage
0.68×
0.41×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
CRL
CRL
FSS
FSS
Q4 25
$213.8M
$63.7M
Q3 25
$207.1M
$54.4M
Q2 25
$182.8M
$64.7M
Q1 25
$229.4M
$57.5M
Q4 24
$194.6M
$91.1M
Q3 24
$210.2M
$73.7M
Q2 24
$179.2M
$48.6M
Q1 24
$327.0M
$48.9M
Total Debt
CRL
CRL
FSS
FSS
Q4 25
$2.1B
$564.6M
Q3 25
$2.2B
$201.2M
Q2 25
$2.3B
$258.3M
Q1 25
$2.5B
$266.9M
Q4 24
$2.2B
$204.4M
Q3 24
$2.3B
$223.3M
Q2 24
$2.4B
$248.8M
Q1 24
$2.7B
$266.8M
Stockholders' Equity
CRL
CRL
FSS
FSS
Q4 25
$3.2B
$1.4B
Q3 25
$3.4B
$1.3B
Q2 25
$3.4B
$1.3B
Q1 25
$3.2B
$1.2B
Q4 24
$3.5B
$1.2B
Q3 24
$3.8B
$1.1B
Q2 24
$3.7B
$1.1B
Q1 24
$3.6B
$1.0B
Total Assets
CRL
CRL
FSS
FSS
Q4 25
$7.1B
$2.4B
Q3 25
$7.5B
$1.9B
Q2 25
$7.6B
$1.9B
Q1 25
$7.6B
$1.9B
Q4 24
$7.5B
$1.8B
Q3 24
$8.0B
$1.7B
Q2 24
$7.9B
$1.7B
Q1 24
$8.2B
$1.7B
Debt / Equity
CRL
CRL
FSS
FSS
Q4 25
0.68×
0.41×
Q3 25
0.64×
0.15×
Q2 25
0.70×
0.20×
Q1 25
0.79×
0.22×
Q4 24
0.65×
0.17×
Q3 24
0.62×
0.19×
Q2 24
0.65×
0.23×
Q1 24
0.73×
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
CRL
CRL
FSS
FSS
Operating Cash FlowLast quarter
$147.5M
$97.2M
Free Cash FlowOCF − Capex
$58.6M
$89.5M
FCF MarginFCF / Revenue
5.9%
15.0%
Capex IntensityCapex / Revenue
8.9%
1.3%
Cash ConversionOCF / Net Profit
1.60×
TTM Free Cash FlowTrailing 4 quarters
$518.5M
$227.1M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
CRL
CRL
FSS
FSS
Q4 25
$147.5M
$97.2M
Q3 25
$213.8M
$61.1M
Q2 25
$204.6M
$59.7M
Q1 25
$171.7M
$36.7M
Q4 24
$159.4M
$90.6M
Q3 24
$251.8M
$68.8M
Q2 24
$193.5M
$40.6M
Q1 24
$129.9M
$31.3M
Free Cash Flow
CRL
CRL
FSS
FSS
Q4 25
$58.6M
$89.5M
Q3 25
$178.2M
$54.1M
Q2 25
$169.3M
$52.4M
Q1 25
$112.4M
$31.1M
Q4 24
$83.7M
$82.1M
Q3 24
$213.1M
$60.9M
Q2 24
$154.0M
$24.8M
Q1 24
$50.7M
$22.9M
FCF Margin
CRL
CRL
FSS
FSS
Q4 25
5.9%
15.0%
Q3 25
17.7%
9.7%
Q2 25
16.4%
9.3%
Q1 25
11.4%
6.7%
Q4 24
8.4%
17.4%
Q3 24
21.1%
12.8%
Q2 24
15.0%
5.1%
Q1 24
5.0%
5.4%
Capex Intensity
CRL
CRL
FSS
FSS
Q4 25
8.9%
1.3%
Q3 25
3.5%
1.3%
Q2 25
3.4%
1.3%
Q1 25
6.0%
1.2%
Q4 24
7.5%
1.8%
Q3 24
3.8%
1.7%
Q2 24
3.8%
3.2%
Q1 24
7.8%
2.0%
Cash Conversion
CRL
CRL
FSS
FSS
Q4 25
1.60×
Q3 25
3.93×
0.90×
Q2 25
3.91×
0.84×
Q1 25
6.74×
0.79×
Q4 24
1.81×
Q3 24
3.61×
1.28×
Q2 24
2.06×
0.67×
Q1 24
1.78×
0.61×

Financial Flow Comparison

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

Revenue Breakdown by Segment

CRL
CRL

Discovery And Safety Assessment Segment$591.6M60%
Manufacturing Support Segment$196.4M20%
Transferred At Point In Time$108.0M11%
Transferred Over Time$98.3M10%

FSS
FSS

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

Related Comparisons