ClearSign Technologies Corp (CLIR)
About ClearSign Technologies Corp
ClearSign Technologies Corp is engaged in designing and develop technologies for the purpose of decarbonization and improving key performance characteristics of industrial and commercial combustion systems, including emission and operational performance, energy efficiency and overall cost-effectiveness. Its ClearSign Core technology has been proved to be in full scale industrial test furnaces and boilers and first customer installations are currently operating in normal commercial applications The company offers products that include process burners, boiler burners, flares, and ClearSign Eye. The company operates in one segment: Combustion segment. The products of the company include: Process Burners, Midstream and Power, Flares, Boiler Burners, and Sensing Technology.
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Financial summary
- Revenue FY2018
- $530.0K
- Net income
- -$5.5M
- Total assets
- $12.2M
- Market cap
- $24.4M
- Gross margin
- 27.2%
- Operating margin
- -127.5%
- Net margin
- -105.0%
Source: SEC EDGAR · updated Jun 7, 2026
Revenue & profit trend
Financial statements
Income statement
- Revenue
- $5.2M
- Cost of revenue
- $3.8M
- Gross profit
- $1.4M
- Operating expenses
- $8.1M
- Operating income
- -$6.7M
- Income tax
- $0
- Net income
- -$5.5M
- EPS (basic)
- $-0.99
- EPS (diluted)
- $-0.99
Balance sheet
- Total assets
- $12.2M
- Current assets
- $11.2M
- Total liabilities
- $2.7M
- Current liabilities
- $2.6M
- Shareholders’ equity
- $9.5M
Cash flow
- Operating cash flow
- -$4.7M
- Investing cash flow
- -$101.0K
- Financing cash flow
- -$21.0K
- Net cash flow
- -$4.9M
Statements via Polygon.io (SEC filings)
15-minute delayed · data by Polygon.io
Past year · hover for prices
52-week range
- Market cap
- $24.4M
- EPS (diluted)
- $-0.99
- Shares outstanding
- 7.0M
- Open
- —
- Day range
- –
- Prev close
- —
- Volume
- —
- IPO date
- Apr 25, 2012
ClearSign Technologies Corp (CLIR) Stock Price
- Reported a net loss of $5.5M in FY2018.
- Revenue grew 762% from FY2021 to FY2025.
- Gross margin of 27.2%, net margin -105.0%.
- Trading 67% below its 52-week high.
Automatically generated from public filings and market data. Informational only — not investment advice or a recommendation to buy or sell any security.
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ClearSign Technologies Corp: frequently asked questions
Is ClearSign Technologies Corp an American company?
ClearSign Technologies Corp is a US-based company headquartered in Tulsa, Oklahoma, listed in the americancompanies.com directory of American companies. Its American-origin credentials have not yet been independently verified.
Where is ClearSign Technologies Corp headquartered?
ClearSign Technologies Corp is headquartered in Tulsa, Oklahoma, United States.
Is ClearSign Technologies Corp publicly traded?
Yes — ClearSign Technologies Corp is a publicly traded company. Its stock trades under the ticker symbol CLIR on the NASDAQ.
What does ClearSign Technologies Corp do?
ClearSign Technologies Corp is an American Medical Devices company in the Health & Beauty sector.
