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Side-by-side financial comparison of DONALDSON Co INC (DCI) and Perma-Pipe International Holdings, Inc. (PPIH). Click either name above to swap in a different company.

DONALDSON Co INC is the larger business by last-quarter revenue ($935.4M vs $61.1M, roughly 15.3× Perma-Pipe International Holdings, Inc.). DONALDSON Co INC runs the higher net margin — 12.2% vs 10.3%, a 1.8% gap on every dollar of revenue. On growth, Perma-Pipe International Holdings, Inc. posted the faster year-over-year revenue change (47.1% vs 3.9%). DONALDSON Co INC produced more free cash flow last quarter ($111.2M vs $12.4M). Over the past eight quarters, Perma-Pipe International Holdings, Inc.'s revenue compounded faster (23.4% 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.

Perma-Pipe International Holdings, Inc. designs, manufactures and supplies pre-insulated piping systems and integrated leak detection solutions. Its offerings cater to oil & gas, district heating and cooling, industrial, and municipal infrastructure segments, with a global footprint spanning North America, the Middle East, Europe and Asia.

DCI vs PPIH — Head-to-Head

Bigger by revenue
DCI
DCI
15.3× larger
DCI
$935.4M
$61.1M
PPIH
Growing faster (revenue YoY)
PPIH
PPIH
+43.2% gap
PPIH
47.1%
3.9%
DCI
Higher net margin
DCI
DCI
1.8% more per $
DCI
12.2%
10.3%
PPIH
More free cash flow
DCI
DCI
$98.8M more FCF
DCI
$111.2M
$12.4M
PPIH
Faster 2-yr revenue CAGR
PPIH
PPIH
Annualised
PPIH
23.4%
3.3%
DCI

Income Statement — Q1 2026 vs Q3 2026

Metric
DCI
DCI
PPIH
PPIH
Revenue
$935.4M
$61.1M
Net Profit
$113.9M
$6.3M
Gross Margin
35.2%
34.4%
Operating Margin
16.0%
18.6%
Net Margin
12.2%
10.3%
Revenue YoY
3.9%
47.1%
Net Profit YoY
15.1%
153.5%
EPS (diluted)
$0.97
$0.77

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
PPIH
PPIH
Q4 25
$935.4M
$61.1M
Q3 25
$980.7M
$47.9M
Q2 25
$940.1M
$46.7M
Q1 25
$870.0M
$45.0M
Q4 24
$900.1M
$41.6M
Q3 24
$935.4M
$37.5M
Q2 24
$927.9M
$34.3M
Q1 24
$876.7M
$40.2M
Net Profit
DCI
DCI
PPIH
PPIH
Q4 25
$113.9M
$6.3M
Q3 25
$114.3M
$851.0K
Q2 25
$57.8M
$5.0M
Q1 25
$95.9M
$1.8M
Q4 24
$99.0M
$2.5M
Q3 24
$109.7M
$3.3M
Q2 24
$113.5M
$1.4M
Q1 24
$98.7M
$8.6M
Gross Margin
DCI
DCI
PPIH
PPIH
Q4 25
35.2%
34.4%
Q3 25
34.5%
30.1%
Q2 25
34.2%
35.8%
Q1 25
35.2%
33.7%
Q4 24
35.5%
33.9%
Q3 24
35.8%
35.9%
Q2 24
35.6%
30.6%
Q1 24
35.2%
30.0%
Operating Margin
DCI
DCI
PPIH
PPIH
Q4 25
16.0%
18.6%
Q3 25
15.5%
6.7%
Q2 25
9.3%
16.9%
Q1 25
14.4%
12.1%
Q4 24
14.5%
13.4%
Q3 24
15.6%
16.4%
Q2 24
15.5%
9.1%
Q1 24
14.8%
11.3%
Net Margin
DCI
DCI
PPIH
PPIH
Q4 25
12.2%
10.3%
Q3 25
11.7%
1.8%
Q2 25
6.1%
10.6%
Q1 25
11.0%
3.9%
Q4 24
11.0%
6.0%
Q3 24
11.7%
8.8%
Q2 24
12.2%
4.2%
Q1 24
11.3%
21.5%
EPS (diluted)
DCI
DCI
PPIH
PPIH
Q4 25
$0.97
$0.77
Q3 25
$0.97
$0.10
Q2 25
$0.48
$0.61
Q1 25
$0.79
$0.23
Q4 24
$0.81
$0.31
Q3 24
$0.90
$0.40
Q2 24
$0.92
$0.18
Q1 24
$0.81
$1.07

Balance Sheet & Financial Strength

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

Metric
DCI
DCI
PPIH
PPIH
Cash + ST InvestmentsLiquidity on hand
$210.7M
$27.2M
Total DebtLower is stronger
$671.5M
$12.7M
Stockholders' EquityBook value
$1.5B
$85.8M
Total Assets
$3.0B
$217.0M
Debt / EquityLower = less leverage
0.44×
0.15×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
DCI
DCI
PPIH
PPIH
Q4 25
$210.7M
$27.2M
Q3 25
$180.4M
$17.3M
Q2 25
$178.5M
$18.8M
Q1 25
$189.1M
$15.7M
Q4 24
$221.2M
$13.3M
Q3 24
$232.7M
$9.5M
Q2 24
$223.7M
$7.7M
Q1 24
$193.8M
$5.8M
Total Debt
DCI
DCI
PPIH
PPIH
Q4 25
$671.5M
$12.7M
Q3 25
$630.4M
Q2 25
$638.8M
Q1 25
$514.7M
$15.2M
Q4 24
$538.6M
Q3 24
$483.4M
Q2 24
$481.8M
Q1 24
$352.0M
$15.2M
Stockholders' Equity
DCI
DCI
PPIH
PPIH
Q4 25
$1.5B
$85.8M
Q3 25
$1.5B
$80.2M
Q2 25
$1.5B
$77.9M
Q1 25
$1.5B
$72.1M
Q4 24
$1.5B
$71.2M
Q3 24
$1.5B
$68.6M
Q2 24
$1.5B
$65.5M
Q1 24
$1.4B
$65.7M
Total Assets
DCI
DCI
PPIH
PPIH
Q4 25
$3.0B
$217.0M
Q3 25
$3.0B
$189.0M
Q2 25
$3.0B
$178.3M
Q1 25
$3.0B
$165.2M
Q4 24
$3.0B
$160.7M
Q3 24
$2.9B
$157.8M
Q2 24
$2.9B
$155.7M
Q1 24
$2.8B
$155.7M
Debt / Equity
DCI
DCI
PPIH
PPIH
Q4 25
0.44×
0.15×
Q3 25
0.43×
Q2 25
0.44×
Q1 25
0.33×
0.21×
Q4 24
0.35×
Q3 24
0.32×
Q2 24
0.32×
Q1 24
0.26×
0.23×

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
PPIH
PPIH
Operating Cash FlowLast quarter
$125.4M
$17.3M
Free Cash FlowOCF − Capex
$111.2M
$12.4M
FCF MarginFCF / Revenue
11.9%
20.2%
Capex IntensityCapex / Revenue
1.5%
8.1%
Cash ConversionOCF / Net Profit
1.10×
2.74×
TTM Free Cash FlowTrailing 4 quarters
$403.2M
$12.3M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
DCI
DCI
PPIH
PPIH
Q4 25
$125.4M
$17.3M
Q3 25
$167.8M
$-2.0M
Q2 25
$87.7M
$733.0K
Q1 25
$90.4M
$6.0M
Q4 24
$72.9M
$5.2M
Q3 24
$126.0M
$2.8M
Q2 24
$141.5M
$-73.0K
Q1 24
$87.0M
$7.1M
Free Cash Flow
DCI
DCI
PPIH
PPIH
Q4 25
$111.2M
$12.4M
Q3 25
$147.5M
$-4.6M
Q2 25
$73.0M
$-194.0K
Q1 25
$71.5M
$4.7M
Q4 24
$47.9M
$4.8M
Q3 24
$106.2M
$2.2M
Q2 24
$120.2M
$-662.0K
Q1 24
$65.7M
$4.2M
FCF Margin
DCI
DCI
PPIH
PPIH
Q4 25
11.9%
20.2%
Q3 25
15.0%
-9.6%
Q2 25
7.8%
-0.4%
Q1 25
8.2%
10.5%
Q4 24
5.3%
11.6%
Q3 24
11.4%
5.8%
Q2 24
13.0%
-1.9%
Q1 24
7.5%
10.5%
Capex Intensity
DCI
DCI
PPIH
PPIH
Q4 25
1.5%
8.1%
Q3 25
2.1%
5.3%
Q2 25
1.6%
2.0%
Q1 25
2.2%
2.9%
Q4 24
2.8%
0.8%
Q3 24
2.1%
1.7%
Q2 24
2.3%
1.7%
Q1 24
2.4%
7.2%
Cash Conversion
DCI
DCI
PPIH
PPIH
Q4 25
1.10×
2.74×
Q3 25
1.47×
-2.40×
Q2 25
1.52×
0.15×
Q1 25
0.94×
3.42×
Q4 24
0.74×
2.07×
Q3 24
1.15×
0.86×
Q2 24
1.25×
-0.05×
Q1 24
0.88×
0.82×

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%

PPIH
PPIH

Segment breakdown not available.

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