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

DONALDSON Co INC is the larger business by last-quarter revenue ($935.4M vs $604.5M, roughly 1.5× STEPAN CO). DONALDSON Co INC runs the higher net margin — 12.2% vs 3.3%, a 8.9% gap on every dollar of revenue. On growth, DONALDSON Co INC posted the faster year-over-year revenue change (3.9% vs 1.9%). Over the past eight quarters, STEPAN CO's revenue compounded faster (4.2% CAGR vs 3.3%).

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.

Stepan Company is an American manufacturer of specialty chemicals headquartered in Northbrook, Illinois. The company was founded in 1932 by Alfred C. Stepan, Jr., and has approximately 2,000 employees. It is currently run by his grandson, F. Quinn Stepan, Jr. The company describes itself as the largest global merchant manufacturer of anionic surfactants, which are used to enhance the foaming and cleaning capabilities of detergents, shampoos, toothpastes, and cosmetics.

DCI vs SCL — Head-to-Head

Bigger by revenue
DCI
DCI
1.5× larger
DCI
$935.4M
$604.5M
SCL
Growing faster (revenue YoY)
DCI
DCI
+2.0% gap
DCI
3.9%
1.9%
SCL
Higher net margin
DCI
DCI
8.9% more per $
DCI
12.2%
3.3%
SCL
Faster 2-yr revenue CAGR
SCL
SCL
Annualised
SCL
4.2%
3.3%
DCI

Income Statement — Q1 FY2026 vs Q1 FY2026

Metric
DCI
DCI
SCL
SCL
Revenue
$935.4M
$604.5M
Net Profit
$113.9M
$19.7M
Gross Margin
35.2%
10.7%
Operating Margin
16.0%
4.7%
Net Margin
12.2%
3.3%
Revenue YoY
3.9%
1.9%
Net Profit YoY
15.1%
EPS (diluted)
$0.97
$0.86

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
SCL
SCL
Q1 26
$604.5M
Q4 25
$935.4M
$553.9M
Q3 25
$980.7M
$590.3M
Q2 25
$940.1M
$594.7M
Q1 25
$870.0M
$593.3M
Q4 24
$900.1M
$525.6M
Q3 24
$935.4M
$546.8M
Q2 24
$927.9M
$556.4M
Net Profit
DCI
DCI
SCL
SCL
Q1 26
$19.7M
Q4 25
$113.9M
$5.0M
Q3 25
$114.3M
$10.8M
Q2 25
$57.8M
$11.3M
Q1 25
$95.9M
$19.7M
Q4 24
$99.0M
$3.4M
Q3 24
$109.7M
$23.6M
Q2 24
$113.5M
$9.5M
Gross Margin
DCI
DCI
SCL
SCL
Q1 26
10.7%
Q4 25
35.2%
9.3%
Q3 25
34.5%
12.0%
Q2 25
34.2%
12.1%
Q1 25
35.2%
12.7%
Q4 24
35.5%
10.8%
Q3 24
35.8%
13.8%
Q2 24
35.6%
12.5%
Operating Margin
DCI
DCI
SCL
SCL
Q1 26
4.7%
Q4 25
16.0%
1.9%
Q3 25
15.5%
3.7%
Q2 25
9.3%
3.0%
Q1 25
14.4%
4.8%
Q4 24
14.5%
1.5%
Q3 24
15.6%
4.4%
Q2 24
15.5%
3.4%
Net Margin
DCI
DCI
SCL
SCL
Q1 26
3.3%
Q4 25
12.2%
0.9%
Q3 25
11.7%
1.8%
Q2 25
6.1%
1.9%
Q1 25
11.0%
3.3%
Q4 24
11.0%
0.6%
Q3 24
11.7%
4.3%
Q2 24
12.2%
1.7%
EPS (diluted)
DCI
DCI
SCL
SCL
Q1 26
$0.86
Q4 25
$0.97
$0.22
Q3 25
$0.97
$0.47
Q2 25
$0.48
$0.50
Q1 25
$0.79
$0.86
Q4 24
$0.81
$0.14
Q3 24
$0.90
$1.03
Q2 24
$0.92
$0.42

Balance Sheet & Financial Strength

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

Metric
DCI
DCI
SCL
SCL
Cash + ST InvestmentsLiquidity on hand
$210.7M
Total DebtLower is stronger
$671.5M
$328.4M
Stockholders' EquityBook value
$1.5B
$1.2B
Total Assets
$3.0B
$2.3B
Debt / EquityLower = less leverage
0.44×
0.28×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
DCI
DCI
SCL
SCL
Q1 26
Q4 25
$210.7M
$132.7M
Q3 25
$180.4M
$118.5M
Q2 25
$178.5M
$88.9M
Q1 25
$189.1M
$107.5M
Q4 24
$221.2M
$99.7M
Q3 24
$232.7M
$147.3M
Q2 24
$223.7M
$124.7M
Total Debt
DCI
DCI
SCL
SCL
Q1 26
$328.4M
Q4 25
$671.5M
$626.7M
Q3 25
$630.4M
$655.5M
Q2 25
$638.8M
$658.0M
Q1 25
$514.7M
$659.3M
Q4 24
$538.6M
$625.4M
Q3 24
$483.4M
$688.5M
Q2 24
$481.8M
$657.1M
Stockholders' Equity
DCI
DCI
SCL
SCL
Q1 26
$1.2B
Q4 25
$1.5B
$1.2B
Q3 25
$1.5B
$1.2B
Q2 25
$1.5B
$1.2B
Q1 25
$1.5B
$1.2B
Q4 24
$1.5B
$1.2B
Q3 24
$1.5B
$1.2B
Q2 24
$1.5B
$1.2B
Total Assets
DCI
DCI
SCL
SCL
Q1 26
$2.3B
Q4 25
$3.0B
$2.4B
Q3 25
$3.0B
$2.4B
Q2 25
$3.0B
$2.4B
Q1 25
$3.0B
$2.4B
Q4 24
$3.0B
$2.3B
Q3 24
$2.9B
$2.4B
Q2 24
$2.9B
$2.3B
Debt / Equity
DCI
DCI
SCL
SCL
Q1 26
0.28×
Q4 25
0.44×
0.50×
Q3 25
0.43×
0.53×
Q2 25
0.44×
0.53×
Q1 25
0.33×
0.55×
Q4 24
0.35×
0.53×
Q3 24
0.32×
0.56×
Q2 24
0.32×
0.55×

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
SCL
SCL
Operating Cash FlowLast quarter
$125.4M
Free Cash FlowOCF − Capex
$111.2M
FCF MarginFCF / Revenue
11.9%
Capex IntensityCapex / Revenue
1.5%
Cash ConversionOCF / Net Profit
1.10×
TTM Free Cash FlowTrailing 4 quarters
$403.2M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
DCI
DCI
SCL
SCL
Q1 26
Q4 25
$125.4M
$60.0M
Q3 25
$167.8M
$69.8M
Q2 25
$87.7M
$11.2M
Q1 25
$90.4M
$6.9M
Q4 24
$72.9M
$68.3M
Q3 24
$126.0M
$22.7M
Q2 24
$141.5M
$29.5M
Free Cash Flow
DCI
DCI
SCL
SCL
Q1 26
Q4 25
$111.2M
$25.4M
Q3 25
$147.5M
$40.2M
Q2 25
$73.0M
$-14.4M
Q1 25
$71.5M
$-25.8M
Q4 24
$47.9M
$32.1M
Q3 24
$106.2M
$-4.0M
Q2 24
$120.2M
$-208.0K
FCF Margin
DCI
DCI
SCL
SCL
Q1 26
Q4 25
11.9%
4.6%
Q3 25
15.0%
6.8%
Q2 25
7.8%
-2.4%
Q1 25
8.2%
-4.3%
Q4 24
5.3%
6.1%
Q3 24
11.4%
-0.7%
Q2 24
13.0%
-0.0%
Capex Intensity
DCI
DCI
SCL
SCL
Q1 26
Q4 25
1.5%
6.3%
Q3 25
2.1%
5.0%
Q2 25
1.6%
4.3%
Q1 25
2.2%
5.5%
Q4 24
2.8%
6.9%
Q3 24
2.1%
4.9%
Q2 24
2.3%
5.3%
Cash Conversion
DCI
DCI
SCL
SCL
Q1 26
Q4 25
1.10×
11.99×
Q3 25
1.47×
6.44×
Q2 25
1.52×
0.99×
Q1 25
0.94×
0.35×
Q4 24
0.74×
20.38×
Q3 24
1.15×
0.96×
Q2 24
1.25×
3.10×

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%

SCL
SCL

Surfactants$453.7M75%
Polymers$130.0M22%
Specialty Products$20.8M3%

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