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Side-by-side financial comparison of Charles River Laboratories (CRL) and Lennox International (LII). Click either name above to swap in a different company.

Lennox International is the larger business by last-quarter revenue ($1.2B vs $994.2M, roughly 1.2× Charles River Laboratories). Lennox International runs the higher net margin — 13.6% vs -27.8%, a 41.4% gap on every dollar of revenue. On growth, Charles River Laboratories posted the faster year-over-year revenue change (-0.8% vs -11.2%). Lennox International produced more free cash flow last quarter ($376.7M vs $58.6M). Over the past eight quarters, Lennox International's revenue compounded faster (6.8% 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.

Lennox International Inc. is an American provider of climate control products for the heating, ventilation, and air conditioning (HVAC) and refrigeration markets. Based in Richardson, Texas, the company is 9.8% owned by John W. Norris, III, a descendant of DW Norris, who acquired the company in 1904. The company's largest production facilities are in Saltillo, Mexico, Marshalltown, Iowa, and Orangeburg, South Carolina.

CRL vs LII — Head-to-Head

Bigger by revenue
LII
LII
1.2× larger
LII
$1.2B
$994.2M
CRL
Growing faster (revenue YoY)
CRL
CRL
+10.3% gap
CRL
-0.8%
-11.2%
LII
Higher net margin
LII
LII
41.4% more per $
LII
13.6%
-27.8%
CRL
More free cash flow
LII
LII
$318.1M more FCF
LII
$376.7M
$58.6M
CRL
Faster 2-yr revenue CAGR
LII
LII
Annualised
LII
6.8%
-0.9%
CRL

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
CRL
CRL
LII
LII
Revenue
$994.2M
$1.2B
Net Profit
$-276.6M
$162.1M
Gross Margin
34.7%
Operating Margin
-28.5%
18.6%
Net Margin
-27.8%
13.6%
Revenue YoY
-0.8%
-11.2%
Net Profit YoY
-28.9%
-18.0%
EPS (diluted)
$-5.57
$4.62

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
LII
LII
Q4 25
$994.2M
$1.2B
Q3 25
$1.0B
$1.4B
Q2 25
$1.0B
$1.5B
Q1 25
$984.2M
$1.1B
Q4 24
$1.0B
$1.3B
Q3 24
$1.0B
$1.5B
Q2 24
$1.0B
$1.5B
Q1 24
$1.0B
$1.0B
Net Profit
CRL
CRL
LII
LII
Q4 25
$-276.6M
$162.1M
Q3 25
$54.4M
$245.8M
Q2 25
$52.3M
$277.6M
Q1 25
$25.5M
$120.3M
Q4 24
$-214.5M
$197.7M
Q3 24
$69.7M
$239.0M
Q2 24
$94.1M
$245.9M
Q1 24
$73.0M
$124.3M
Gross Margin
CRL
CRL
LII
LII
Q4 25
34.7%
Q3 25
32.8%
Q2 25
34.8%
Q1 25
30.6%
Q4 24
33.9%
Q3 24
34.6%
32.6%
Q2 24
34.5%
33.6%
Q1 24
34.1%
32.5%
Operating Margin
CRL
CRL
LII
LII
Q4 25
-28.5%
18.6%
Q3 25
13.3%
21.7%
Q2 25
9.7%
23.6%
Q1 25
7.6%
14.5%
Q4 24
-16.7%
18.2%
Q3 24
11.6%
20.2%
Q2 24
14.8%
22.1%
Q1 24
12.5%
15.9%
Net Margin
CRL
CRL
LII
LII
Q4 25
-27.8%
13.6%
Q3 25
5.4%
17.2%
Q2 25
5.1%
18.5%
Q1 25
2.6%
11.2%
Q4 24
-21.4%
14.7%
Q3 24
6.9%
16.0%
Q2 24
9.2%
16.9%
Q1 24
7.2%
11.9%
EPS (diluted)
CRL
CRL
LII
LII
Q4 25
$-5.57
$4.62
Q3 25
$1.10
$6.98
Q2 25
$1.06
$7.82
Q1 25
$0.50
$3.37
Q4 24
$-4.17
$5.52
Q3 24
$1.33
$6.68
Q2 24
$1.74
$6.87
Q1 24
$1.30
$3.47

Balance Sheet & Financial Strength

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

Metric
CRL
CRL
LII
LII
Cash + ST InvestmentsLiquidity on hand
$213.8M
$34.7M
Total DebtLower is stronger
$2.1B
$1.1B
Stockholders' EquityBook value
$3.2B
$1.2B
Total Assets
$7.1B
$4.1B
Debt / EquityLower = less leverage
0.68×
0.98×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
CRL
CRL
LII
LII
Q4 25
$213.8M
$34.7M
Q3 25
$207.1M
$59.2M
Q2 25
$182.8M
$55.1M
Q1 25
$229.4M
$222.9M
Q4 24
$194.6M
$422.3M
Q3 24
$210.2M
$255.7M
Q2 24
$179.2M
$57.8M
Q1 24
$327.0M
$57.6M
Total Debt
CRL
CRL
LII
LII
Q4 25
$2.1B
$1.1B
Q3 25
$2.2B
$838.2M
Q2 25
$2.3B
$835.7M
Q1 25
$2.5B
$834.2M
Q4 24
$2.2B
$833.1M
Q3 24
$2.3B
$827.6M
Q2 24
$2.4B
$1.1B
Q1 24
$2.7B
$1.2B
Stockholders' Equity
CRL
CRL
LII
LII
Q4 25
$3.2B
$1.2B
Q3 25
$3.4B
$1.1B
Q2 25
$3.4B
$900.5M
Q1 25
$3.2B
$852.5M
Q4 24
$3.5B
$850.2M
Q3 24
$3.8B
$754.0M
Q2 24
$3.7B
$577.4M
Q1 24
$3.6B
$368.8M
Total Assets
CRL
CRL
LII
LII
Q4 25
$7.1B
$4.1B
Q3 25
$7.5B
$3.5B
Q2 25
$7.6B
$3.7B
Q1 25
$7.6B
$3.5B
Q4 24
$7.5B
$3.5B
Q3 24
$8.0B
$3.3B
Q2 24
$7.9B
$3.2B
Q1 24
$8.2B
$3.0B
Debt / Equity
CRL
CRL
LII
LII
Q4 25
0.68×
0.98×
Q3 25
0.64×
0.78×
Q2 25
0.70×
0.93×
Q1 25
0.79×
0.98×
Q4 24
0.65×
0.98×
Q3 24
0.62×
1.10×
Q2 24
0.65×
1.95×
Q1 24
0.73×
3.13×

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
LII
LII
Operating Cash FlowLast quarter
$147.5M
$405.9M
Free Cash FlowOCF − Capex
$58.6M
$376.7M
FCF MarginFCF / Revenue
5.9%
31.5%
Capex IntensityCapex / Revenue
8.9%
2.4%
Cash ConversionOCF / Net Profit
2.50×
TTM Free Cash FlowTrailing 4 quarters
$518.5M
$638.8M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
CRL
CRL
LII
LII
Q4 25
$147.5M
$405.9M
Q3 25
$213.8M
$300.7M
Q2 25
$204.6M
$86.8M
Q1 25
$171.7M
$-35.8M
Q4 24
$159.4M
$332.4M
Q3 24
$251.8M
$452.1M
Q2 24
$193.5M
$184.0M
Q1 24
$129.9M
$-22.8M
Free Cash Flow
CRL
CRL
LII
LII
Q4 25
$58.6M
$376.7M
Q3 25
$178.2M
$265.1M
Q2 25
$169.3M
$58.3M
Q1 25
$112.4M
$-61.3M
Q4 24
$83.7M
$272.2M
Q3 24
$213.1M
$410.9M
Q2 24
$154.0M
$151.3M
Q1 24
$50.7M
$-52.3M
FCF Margin
CRL
CRL
LII
LII
Q4 25
5.9%
31.5%
Q3 25
17.7%
18.6%
Q2 25
16.4%
3.9%
Q1 25
11.4%
-5.7%
Q4 24
8.4%
20.2%
Q3 24
21.1%
27.4%
Q2 24
15.0%
10.4%
Q1 24
5.0%
-5.0%
Capex Intensity
CRL
CRL
LII
LII
Q4 25
8.9%
2.4%
Q3 25
3.5%
2.5%
Q2 25
3.4%
1.9%
Q1 25
6.0%
2.4%
Q4 24
7.5%
4.5%
Q3 24
3.8%
2.8%
Q2 24
3.8%
2.3%
Q1 24
7.8%
2.8%
Cash Conversion
CRL
CRL
LII
LII
Q4 25
2.50×
Q3 25
3.93×
1.22×
Q2 25
3.91×
0.31×
Q1 25
6.74×
-0.30×
Q4 24
1.68×
Q3 24
3.61×
1.89×
Q2 24
2.06×
0.75×
Q1 24
1.78×
-0.18×

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%

LII
LII

Residential Heating And Cooling$699.8M59%
Commercial Heating And Cooling$495.2M41%

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