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Fuel Tech, Inc. vs Perma-Pipe International Holdings, Inc. vs Donaldson Co Inc

Latest annual figures from SEC filings. Each company is shown for its own most recent fiscal year, so period ends can differ. Select a figure to see its full history.

Latest fiscal yearFuel Tech, Inc.
FTEK
Perma-Pipe International Holdings, Inc.
PPIH
Donaldson Co Inc
DCI
Year ended2025-12-312026-01-312025-07-31
Revenue$26.68M$210.93M$3.69B
Revenue growth (YoY)+6.1%+33.2%+2.9%
Gross margin46.4%32.9%34.8%
Operating margin-13.8%14.0%13.4%
Net margin-8.7%8.1%9.9%
Net income-$2.32M$17.04M$367.00M
EPS (Diluted)-$0.08$2.09$3.05
Operating cash flow$3.02M$9.17M$418.80M
Free cash flow$2.34M-$1.27M$339.90M
Cash & equivalents$11.94M$18.72M$180.40M
Total assets$47.18M$217.49M$2.98B
Total liabilities$7.25Mn/a$1.52B
Shareholders' equity$39.93M$90.64M$1.45B
Return on year-end equity-5.8%18.8%25.2%
Shares outstanding31.07M8.12Mn/a

n/a means the company did not report that line under the concept TickerFacts maps, not that it is zero.

Revenue, most recent five fiscal years

Fiscal yearFuel Tech, Inc.Perma-Pipe International Holdings, Inc.Donaldson Co Inc
Latest$26.68M
Ended 2025-12-31
$210.93M
Ended 2026-01-31
$3.69B
Ended 2025-07-31
1 year earlier$25.13M
Ended 2024-12-31
$158.38M
Ended 2025-01-31
$3.59B
Ended 2024-07-31
2 years earlier$27.08M
Ended 2023-12-31
$150.67M
Ended 2024-01-31
$3.43B
Ended 2023-07-31
3 years earlier$26.94M
Ended 2022-12-31
$142.57M
Ended 2023-01-31
$3.31B
Ended 2022-07-31
4 years earlier$24.26M
Ended 2021-12-31
$138.55M
Ended 2022-01-31
$2.85B
Ended 2021-07-31