The table below shows ClearSign Technologies Corp's income statement by quarter, as reported in the company's quarterly filings. All figures are in US dollars; negative values appear in red.
Line item
Q1 2026
Q4 2025
Q3 2025
Q2 2025
Q1 2025
Q4 2024
Revenue
$191.00K
$3.67M
$1.03M
$133.00K
$401.00K
$590.00K
Cost of revenue
$584.00K
-
$661.00K
$78.00K
$205.00K
-
Gross profit
-$393.00K
$805.00K
$368.00K
$55.00K
$196.00K
$88.00K
R&D
$249.00K
-
$310.00K
$247.00K
$447.00K
-
CLIR annual revenue (10-K history)
ClearSign Technologies Corp reported annual revenue of $5.23M for fiscal year 2025. That is up 45.6% from $3.60M in fiscal 2024. Over the 10 fiscal years shown, annual revenue grew from $621.00K (FY 2016) to $5.23M. Figures come from the company's audited annual reports as filed with the SEC.