CLIR
ClearSign Combustion Corporation
NASDAQ: CLIR · INDUSTRIALS · POLLUTION & TREATMENT CONTROLS
$5.00
-6.89% today
Updated 2026-04-30
Market cap
$27.04M
P/E ratio
—
P/S ratio
5.17x
EPS (TTM)
$-0.10
Dividend yield
—
52W range
$3 – $11
Volume
0.1M
ClearSign Combustion Corporation (CLIR) Financial statements
SEC filings — annual and quarterly data.
Income statement — annual
| Item | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Revenue | — | — | — | $0.00 | $93000.00 | $0.00 | $61000.00 | $621000.00 | $540000.00 | $530000.00 | $0.00 | $44000.00 | $607000.00 | $374000.00 | $2.40M | $3.60M | $5.23M |
| Revenue growth (YoY) | — | — | — | — | — | -100.0% | — | +918.0% | -13.0% | -1.9% | -100.0% | — | +1279.5% | -38.4% | +542.5% | +49.6% | +45.6% |
| Cost of revenue | — | — | — | $0.00 | $88000.00 | $0.00 | $50000.00 | $485000.00 | $380000.00 | $427000.00 | $1000.00 | $279000.00 | $1.06M | $404000.00 | $1.59M | $2.48M | $3.81M |
| Gross profit | — | — | — | $0.00 | $5000.00 | $0.00 | $11000.00 | $136000.00 | $160000.00 | $103000.00 | $-1000.00 | $-279000.00 | $-452000.00 | $-30000.00 | $817000.00 | $1.12M | $1.42M |
| Gross margin | — | — | — | — | 5.4% | — | 18.0% | 21.9% | 29.6% | 19.4% | — | -634.1% | -74.5% | -8.0% | 34.0% | 31.1% | 27.2% |
| R&D | $2436.00 | — | $463076.00 | $1.18M | $1.85M | $2.22M | $2.93M | $4.83M | $4.71M | $4.04M | $3.06M | $2.03M | $2.68M | $505000.00 | $739000.00 | $1.47M | $1.42M |
| SG&A | — | $377000.00 | $2.95M | $3.03M | $3.45M | $5.08M | $5.02M | $6.51M | $5.16M | $5.69M | $5.53M | $4.62M | $5.01M | $5.73M | $6.06M | $6.13M | $6.67M |
| Operating income | $-528772.00 | $-395338.00 | $-2.98M | $-4.21M | $-5.30M | $-7.30M | $-7.94M | $-11.21M | $-9.71M | $-9.62M | $-8.58M | $-6.93M | $-8.14M | $-6.12M | $-5.98M | $-6.49M | $-5.93M |
| Operating margin | — | — | — | — | -5694.6% | — | -13019.7% | -1804.3% | -1798.5% | -1815.5% | — | -15754.5% | -1341.8% | -1635.6% | -248.9% | -180.4% | -113.4% |
| EBITDA | $-517437.00 | $-376055.00 | $-2.95M | $-4.09M | $-5.09M | $-7.30M | $-7.70M | $-11.21M | $-9.41M | $-9.35M | $-8.24M | $-6.68M | $-7.63M | $-5.47M | $-5.68M | $-5.55M | $-5.66M |
| EBITDA margin | — | — | — | — | -5469.9% | — | -12619.7% | -1804.3% | -1743.5% | -1764.3% | — | -15172.7% | -1257.3% | -1461.5% | -236.5% | -154.4% | -108.1% |
| EBIT | $-528772.00 | $-395089.00 | $-2.98M | $-4.19M | $-5.30M | $-7.54M | $-7.90M | $-11.41M | $-9.71M | $-9.62M | $-8.48M | $-6.89M | $-7.89M | $-5.76M | $-5.98M | $-5.82M | $-5.93M |
| Interest expense | $0.00 | $0.00 | $158.00 | $1000.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $1000.00 | $194000.00 | — | — | — |
| Income tax | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Effective tax rate | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% |
| Net income | $-528772.00 | $-395587.00 | $-2.98M | $-4.19M | $-5.29M | $-7.30M | $-7.90M | $-11.17M | $-9.68M | $-9.57M | $-8.38M | $-6.84M | $-7.89M | $-5.76M | $-5.19M | $-5.30M | $-5.50M |
| Net income growth (YoY) | — | +25.2% | -652.4% | -40.7% | -26.2% | -38.1% | -8.3% | -41.5% | +13.4% | +1.2% | +12.4% | +18.4% | -15.4% | +27.0% | +9.8% | -2.0% | -3.7% |
| Profit margin | — | — | — | — | -5682.8% | — | -12947.5% | -1799.2% | -1792.6% | -1805.1% | — | -15540.9% | -1299.8% | -1539.6% | -216.1% | -147.4% | -105.0% |