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CLIR

ClearSign Technologies Corp

NASDAQ · Industrials · Industrial - Pollution & Treatment Controls · US

$3.85
+6.65%
Ask drillr
Price chart
Aug 19Aug 24Aug 27Sep 1Sep 4Sep 10Sep 15Sep 18
Key dataSep 18, 2026
Open
$3.71
From 52W high
−63.68%
Volume
19241.00
Market cap
$26.21M
P/E (Fwd)
EV/EBITDA
−3.3x
P/E (TTM)
RSI (14)
41.9
1D Return
+6.65%
YTD Return
−33.36%
SummaryUpdated Jun 1, 2026

ClearSign Technologies Corporation (NASDAQ:CLIR) is an industrial technology company founded in 2008 and headquartered in Tulsa, Oklahoma. The company designs and develops advanced combustion technologies focused on enhancing operational performance, energy efficiency, emission reduction, and safety for industrial and commercial systems. Originally incorporated as ClearSign Combustion Corporation, the company rebranded to ClearSign Technologies Corporation in November 2019 and went public in April 2012. ClearSign primarily serves the energy, petrochemical, chemical, and industrial boiler markets in the United States and China, operating as a specialized technology provider in the industrial pollution and treatment controls sector.

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