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Side-by-side financial comparison of DONALDSON Co INC (DCI) and WATSCO INC (WSO). Click either name above to swap in a different company.

WATSCO INC is the larger business by last-quarter revenue ($1.6B vs $935.4M, roughly 1.7× DONALDSON Co INC). DONALDSON Co INC runs the higher net margin — 12.2% vs 4.5%, a 7.6% gap on every dollar of revenue. On growth, DONALDSON Co INC posted the faster year-over-year revenue change (3.9% vs -10.0%). WATSCO INC produced more free cash flow last quarter ($388.5M vs $111.2M). Over the past eight quarters, DONALDSON Co INC's revenue compounded faster (3.3% CAGR vs 0.4%).

Donaldson Company, Inc. is a filtration company engaged in the production and marketing of filtration products used in a variety of industry sectors, including commercial/industrial, aerospace, chemical, alternative energy (windmills), food & beverage, and pharmaceuticals. Also the company's research division, located in Minneapolis, Minn., participated in defense-related projects for various military applications.

Watsco, Inc. is a distributor of air conditioning, heating and refrigeration equipment, and related parts and supplies (HVAC/R) in the United States. Watsco was founded more than 60 years ago as a manufacturer of parts, components, and tools used in the HVAC/R industry. In 1989, the company shifted from manufacturing to distribution, by acquiring Gemaire Distributors Inc., a South Florida-based Rheem distributor.

DCI vs WSO — Head-to-Head

Bigger by revenue
WSO
WSO
1.7× larger
WSO
$1.6B
$935.4M
DCI
Growing faster (revenue YoY)
DCI
DCI
+13.9% gap
DCI
3.9%
-10.0%
WSO
Higher net margin
DCI
DCI
7.6% more per $
DCI
12.2%
4.5%
WSO
More free cash flow
WSO
WSO
$277.3M more FCF
WSO
$388.5M
$111.2M
DCI
Faster 2-yr revenue CAGR
DCI
DCI
Annualised
DCI
3.3%
0.4%
WSO

Income Statement — Q1 FY2026 vs Q4 FY2025

Metric
DCI
DCI
WSO
WSO
Revenue
$935.4M
$1.6B
Net Profit
$113.9M
$71.7M
Gross Margin
35.2%
27.1%
Operating Margin
16.0%
6.4%
Net Margin
12.2%
4.5%
Revenue YoY
3.9%
-10.0%
Net Profit YoY
15.1%
-25.9%
EPS (diluted)
$0.97
$1.82

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
DCI
DCI
WSO
WSO
Q4 25
$935.4M
$1.6B
Q3 25
$980.7M
$2.1B
Q2 25
$940.1M
$2.1B
Q1 25
$870.0M
$1.5B
Q4 24
$900.1M
$1.8B
Q3 24
$935.4M
$2.2B
Q2 24
$927.9M
$2.1B
Q1 24
$876.7M
$1.6B
Net Profit
DCI
DCI
WSO
WSO
Q4 25
$113.9M
$71.7M
Q3 25
$114.3M
$161.6M
Q2 25
$57.8M
$183.6M
Q1 25
$95.9M
$80.1M
Q4 24
$99.0M
$96.8M
Q3 24
$109.7M
$171.0M
Q2 24
$113.5M
$181.4M
Q1 24
$98.7M
$87.0M
Gross Margin
DCI
DCI
WSO
WSO
Q4 25
35.2%
27.1%
Q3 25
34.5%
27.5%
Q2 25
34.2%
29.3%
Q1 25
35.2%
28.1%
Q4 24
35.5%
26.7%
Q3 24
35.8%
26.2%
Q2 24
35.6%
27.1%
Q1 24
35.2%
27.5%
Operating Margin
DCI
DCI
WSO
WSO
Q4 25
16.0%
6.4%
Q3 25
15.5%
11.4%
Q2 25
9.3%
13.2%
Q1 25
14.4%
7.3%
Q4 24
14.5%
7.8%
Q3 24
15.6%
11.6%
Q2 24
15.5%
12.6%
Q1 24
14.8%
8.1%
Net Margin
DCI
DCI
WSO
WSO
Q4 25
12.2%
4.5%
Q3 25
11.7%
7.8%
Q2 25
6.1%
8.9%
Q1 25
11.0%
5.2%
Q4 24
11.0%
5.5%
Q3 24
11.7%
7.9%
Q2 24
12.2%
8.5%
Q1 24
11.3%
5.6%
EPS (diluted)
DCI
DCI
WSO
WSO
Q4 25
$0.97
$1.82
Q3 25
$0.97
$3.98
Q2 25
$0.48
$4.52
Q1 25
$0.79
$1.93
Q4 24
$0.81
$2.42
Q3 24
$0.90
$4.22
Q2 24
$0.92
$4.49
Q1 24
$0.81
$2.17

Balance Sheet & Financial Strength

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

Metric
DCI
DCI
WSO
WSO
Cash + ST InvestmentsLiquidity on hand
$210.7M
$733.3M
Total DebtLower is stronger
$671.5M
$361.6M
Stockholders' EquityBook value
$1.5B
$2.8B
Total Assets
$3.0B
$4.4B
Debt / EquityLower = less leverage
0.44×
0.13×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
DCI
DCI
WSO
WSO
Q4 25
$210.7M
$733.3M
Q3 25
$180.4M
$524.3M
Q2 25
$178.5M
$293.0M
Q1 25
$189.1M
$431.8M
Q4 24
$221.2M
$781.9M
Q3 24
$232.7M
$550.0M
Q2 24
$223.7M
$424.9M
Q1 24
$193.8M
$478.9M
Total Debt
DCI
DCI
WSO
WSO
Q4 25
$671.5M
$361.6M
Q3 25
$630.4M
$340.8M
Q2 25
$638.8M
$338.7M
Q1 25
$514.7M
$346.4M
Q4 24
$538.6M
$337.2M
Q3 24
$483.4M
$321.0M
Q2 24
$481.8M
$307.1M
Q1 24
$352.0M
$306.3M
Stockholders' Equity
DCI
DCI
WSO
WSO
Q4 25
$1.5B
$2.8B
Q3 25
$1.5B
$2.8B
Q2 25
$1.5B
$2.8B
Q1 25
$1.5B
$2.7B
Q4 24
$1.5B
$2.7B
Q3 24
$1.5B
$2.7B
Q2 24
$1.5B
$2.6B
Q1 24
$1.4B
$2.5B
Total Assets
DCI
DCI
WSO
WSO
Q4 25
$3.0B
$4.4B
Q3 25
$3.0B
$4.6B
Q2 25
$3.0B
$4.7B
Q1 25
$3.0B
$4.5B
Q4 24
$3.0B
$4.5B
Q3 24
$2.9B
$4.5B
Q2 24
$2.9B
$4.4B
Q1 24
$2.8B
$4.4B
Debt / Equity
DCI
DCI
WSO
WSO
Q4 25
0.44×
0.13×
Q3 25
0.43×
0.12×
Q2 25
0.44×
0.12×
Q1 25
0.33×
0.13×
Q4 24
0.35×
0.13×
Q3 24
0.32×
0.12×
Q2 24
0.32×
0.12×
Q1 24
0.26×
0.12×

Cash Flow & Capital Efficiency

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

Metric
DCI
DCI
WSO
WSO
Operating Cash FlowLast quarter
$125.4M
$399.8M
Free Cash FlowOCF − Capex
$111.2M
$388.5M
FCF MarginFCF / Revenue
11.9%
24.6%
Capex IntensityCapex / Revenue
1.5%
0.7%
Cash ConversionOCF / Net Profit
1.10×
5.57×
TTM Free Cash FlowTrailing 4 quarters
$403.2M
$535.1M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
DCI
DCI
WSO
WSO
Q4 25
$125.4M
$399.8M
Q3 25
$167.8M
$354.9M
Q2 25
$87.7M
$-7.4M
Q1 25
$90.4M
$-177.6M
Q4 24
$72.9M
$378.9M
Q3 24
$126.0M
$232.8M
Q2 24
$141.5M
$57.7M
Q1 24
$87.0M
$103.7M
Free Cash Flow
DCI
DCI
WSO
WSO
Q4 25
$111.2M
$388.5M
Q3 25
$147.5M
$346.1M
Q2 25
$73.0M
$-14.3M
Q1 25
$71.5M
$-185.2M
Q4 24
$47.9M
$370.9M
Q3 24
$106.2M
$223.0M
Q2 24
$120.2M
$51.3M
Q1 24
$65.7M
$97.9M
FCF Margin
DCI
DCI
WSO
WSO
Q4 25
11.9%
24.6%
Q3 25
15.0%
16.7%
Q2 25
7.8%
-0.7%
Q1 25
8.2%
-12.1%
Q4 24
5.3%
21.1%
Q3 24
11.4%
10.3%
Q2 24
13.0%
2.4%
Q1 24
7.5%
6.3%
Capex Intensity
DCI
DCI
WSO
WSO
Q4 25
1.5%
0.7%
Q3 25
2.1%
0.4%
Q2 25
1.6%
0.3%
Q1 25
2.2%
0.5%
Q4 24
2.8%
0.5%
Q3 24
2.1%
0.5%
Q2 24
2.3%
0.3%
Q1 24
2.4%
0.4%
Cash Conversion
DCI
DCI
WSO
WSO
Q4 25
1.10×
5.57×
Q3 25
1.47×
2.20×
Q2 25
1.52×
-0.04×
Q1 25
0.94×
-2.22×
Q4 24
0.74×
3.91×
Q3 24
1.15×
1.36×
Q2 24
1.25×
0.32×
Q1 24
0.88×
1.19×

Financial Flow Comparison

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

Revenue Breakdown by Segment

DCI
DCI

Aftermarket Products$447.1M48%
Industrial Filtration Solutions Products$222.6M24%
Off Road Products$86.5M9%
Life Sciences Segment$80.0M9%
Other$39.1M4%
Aerospace And Defense Products$37.1M4%
On Road Products$23.0M2%

WSO
WSO

Segment breakdown not available.

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