ClearSign Technologies Corporation designs and develops products and technologies to enhance operational performance, energy efficiency, emission reduction, safety, and overall cost-effectiveness of industrial and commercial systems in the United States and the People's Republic of China. Its ClearSign Core Burner Technology consists of an industrial burner body and a downstream porous ceramic structure or metal flame stabilizing device; ClearSign Core Plug & Play technology provides direct burner replacement for traditional refinery process heaters; and ClearSign Eye Flame Sensor, an electrical flame sensor for industrial applications. The company also provides ClearSign Core Boiler Burner; and ClearSign Core Flaring Burners technologies. It serves energy, institutional, commercial and industrial boiler, chemical, and petrochemical industries. The company was formerly known as ClearSign Combustion Corporation and changed its name ClearSign Technologies Corporation in November 2019. ClearSign Technologies Corporation was incorporated in 2008 and is headquartered in Tulsa, Oklahoma.
CEO: Colin James Deller. Company website
ClearSign Technologies Corporation (CLIR) trades at $4.86, down 21.36% on the day, as of Sep 20, 2026 14:59 UTC.
ClearSign Technologies Corporation has a market capitalisation of $26.28M, calculated from the live CLIR share price and shares outstanding.
CLIR has no meaningful price-to-earnings ratio: ClearSign Technologies Corporation lost $0.99 per share over the last twelve months, and a P/E is only defined on positive earnings.
ClearSign Technologies Corporation generated revenue of $5.23M over the trailing twelve months, which puts the stock at 5.02 times sales.
CLIR has traded between $3.24 and $7.56 over the past 52 weeks, and the last price is 35.7% below that high.
No. ClearSign Technologies Corporation is loss-making, with a net margin of -105.01% over the trailing twelve months.
Wall Street analysts rate CLIR Buy.
ClearSign Technologies Corporation is classified under the Industrials sector and the Industrial - Pollution & Treatment Controls industry, and is domiciled in US .
Colin James Deller is the chief executive of ClearSign Technologies Corporation, which employs 18 people.
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