ClearSign Technologies Corporation (CLIR)

NASDAQ: CLIR · Real-Time Price · USD
3.940
-0.340 (-7.94%)
At close: Jun 5, 2026, 4:00 PM EDT
4.010
+0.070 (1.78%)
After-hours: Jun 5, 2026, 5:34 PM EDT
Market Cap21.33M -42.7%
Revenue (ttm)5.02M +73.5%
Net Income-5.61M
EPS-1.00
Shares Out 5.41M
PE Ration/a
Forward PEn/a
Dividendn/a
Ex-Dividend Daten/a
Volume9,512
Open4.305
Previous Close4.280
Day's Range3.940 - 4.395
52-Week Range3.240 - 11.200
Beta1.34
Analystsn/a
Price Targetn/a
Earnings DateMay 15, 2026

About CLIR

ClearSign Technologies Corporation designs and develops products and technologies for the purpose of decarbonization and improving key performance characteristics of industrial and commercial systems in the United States and the People’s Republic of China. The company’s technologies include ClearSign core burner technology consists of an industrial burner body and a downstream porous ceramic or metal flame stabilizing structure; ClearSign core process burner technology that provides a direct burner replacement for traditional refinery process h... [Read more]

IPO Date Apr 25, 2012
Employees 15
Stock Exchange NASDAQ
Ticker Symbol CLIR
Full Company Profile

Financial Performance

In 2025, ClearSign Technologies's revenue was $5.23 million, an increase of 45.55% compared to the previous year's $3.60 million. Losses were -$5.50 million, 3.72% more than in 2024.

Financial Statements

News

Water Tower Research Publishes Initiation of Coverage Report on ClearSign Technologies Corporation, “Disruptive Burner Technology with 80% Cost Advantage Over Incumbent Tech”

June 2, 2026, ST. PETERSBURG, FL – Water Tower Research (www.watertowerresearch.com) has published an Initiation of Coverage Report on ClearSign Technologies Corporation (NASDAQ: CLIR) titled, “Disrup...

3 days ago - TheNewswire

ClearSign prices 777,780 shares at $4.33 in underwritten public offering

ClearSign (CLIR) Technologies announces the pricing of an underwritten public offering with primarily existing stockholders of 777,780 shares of its common stock at a price to the public of $4.33…

7 days ago - TheFly

ClearSign Technologies Corporation Prices Underwritten Public Offering of Common Stock

TULSA, OK / ACCESS Newswire / May 29, 2026 / ClearSign Technologies Corporation (Nasdaq:CLIR) ("ClearSign" or the "Company"), a leader in advanced combustion and sensing technologies that help industr...

7 days ago - Accesswire

ClearSign announces common stock offering, no amount given

ClearSign (CLIR) Technologies Corporation announced that it is proposing to sell shares of its common stock in an underwritten public offering. All of the shares in the offering are to…

8 days ago - TheFly

ClearSign Technologies Corporation Announces Proposed Public Offering of Common Stock

TULSA, OK / ACCESS Newswire / May 28, 2026 / ClearSign Technologies Corporation (NASDAQ:CLIR) ("ClearSign" or the "Company"), a leader in advanced combustion and sensing technologies that help industr...

8 days ago - Accesswire

ClearSign Technologies Earnings Call Transcript: Q1 2026

Revenue and gross profit declined year-over-year due to lower parts deliveries and a warranty accrual, but strong customer engagement, new large orders, and successful technology demonstrations position the business for future growth, especially as major project startups approach.

16 days ago - Transcripts

ClearSign Technologies Quarterly report: Q1 2026

ClearSign Technologies has published its Q1 2026 quarterly earnings report on May 20, 2026.

16 days ago - Filings

ClearSign Technologies Earnings release: Q1 2026

ClearSign Technologies released its Q1 2026 earnings on May 20, 2026, summarizing the period's financial results.

16 days ago - Filings

ClearSign Technologies Corporation Provides First Quarter 2026 Update

TULSA, OK / ACCESS Newswire / May 20, 2026 / ClearSign Technologies Corporation (Nasdaq:CLIR) ("ClearSign" or the "Company"), a leader in advanced combustion and sensing technologies that help industr...

16 days ago - Accesswire

ClearSign receives ‘M1’ series burner order

ClearSign (CLIR) Technologies announces that it has received a purchase order for a ClearSign M1 burner from heater manufacturer Tulsa Heaters Midstream. “We are happy to see continued interest in…

16 days ago - TheFly

ClearSign Receives "M1" Series Burner Order for Midstream Heater in West Texas

Burner Sold by Heater Manufacturer Tulsa Heaters Midstream TULSA, OK / ACCESS Newswire / May 20, 2026 / ClearSign Technologies Corporation (Nasdaq:CLIR) ("ClearSign" or the "Company"), a leader in adv...

16 days ago - Accesswire

ClearSign Technologies Slides: Corporate presentation

ClearSign Technologies has posted slides in relation to its latest quarterly earnings report, which was published on May 18, 2026.

18 days ago - Filings

ClearSign receives order for next phase of 32-burner project for CA refinery

ClearSign (CLIR) Technologies announces that it has received a purchase order for the physical testing and demonstration of burners as the second phase of a process heater retrofit project comprising…

22 days ago - TheFly

ClearSign Receives Order for Next Phase of 32-Burner Project for California Refinery

Project encompasses Two Heaters and Consists of New Flat Flame Application TULSA, OK / ACCESS Newswire / May 14, 2026 / ClearSign Technologies Corporation (Nasdaq:CLIR) ("ClearSign" or the "Company"),...

22 days ago - Accesswire

ClearSign Technologies Corporation Announces First Quarter 2026 Conference Call

Hosting Call at 5pm ET on Wednesday, May 20th TULSA, OK / ACCESS Newswire / May 6, 2026 / ClearSign Technologies Corporation (Nasdaq:CLIR) ("ClearSign" or the "Company"), a leader in advanced combusti...

4 weeks ago - Accesswire

ClearSign Technologies Proxy statement: Proxy filing

ClearSign Technologies filed a proxy statement on April 28, 2026, providing details for shareholder voting and corporate governance matters.

5 weeks ago - Filings

ClearSign Technologies Proxy statement: Proxy filing

ClearSign Technologies filed a proxy statement on April 28, 2026, providing details for shareholder voting and corporate governance matters.

5 weeks ago - Filings

ClearSign Technologies Transcript: Water Tower Research Insights Conference

ClearSign’s asset-light model and innovative low NOx burner technology are gaining traction with major oil refiners, driven by tightening emissions regulations. Key reference projects and a pivotal demonstration event are expected to accelerate orders and support the path to breakeven.

7 weeks ago - Transcripts

ClearSign target adjusted to $20 from $2 at H.C. Wainwright

H.C. Wainwright adjusted the firm’s price target on ClearSign (CLIR) to $20 from $2 and keeps a Buy rating on the shares. The firm cites the company’s 1-for-10 reverse split…

7 weeks ago - TheFly

ClearSign Technologies Earnings Call Transcript: Q4 2025

Record 2025 revenues driven by large process burner orders and expanding product lines, with a strong proposal pipeline and growing market interest from major refiners. Gross margin declined to 27% due to warranty accruals, but cash position remains strong and projects are self-funding.

2 months ago - Transcripts

ClearSign Technologies Earnings release: Q4 2025

ClearSign Technologies released its Q4 2025 earnings on April 9, 2026, summarizing the period's financial results.

2 months ago - Filings

ClearSign Technologies Annual report: Q4 2025

ClearSign Technologies has published its Q4 2025 annual report on April 9, 2026.

2 months ago - Filings

ClearSign Technologies Corporation Provides Fourth Quarter and Full Year 2025 Update

Achieves Record Quarterly Revenue of $3.7 Million Annual Revenue Up 44% to Record $5.2 Million TULSA, OK / ACCESS Newswire / April 9, 2026 / ClearSign Technologies Corporation (Nasdaq:CLIR) ("ClearSig...

2 months ago - Accesswire

ClearSign Technologies Corporation to Participate in Water Tower Research Insights Conference on April 15th 2026

TULSA, OK / ACCESS Newswire / April 7, 2026 / ClearSign Technologies Corporation (Nasdaq:CLIR) ("ClearSign" or the "Company"), a leader in advanced combustion and sensing technologies that help indust...

2 months ago - Accesswire

ClearSign Technologies Corporation Announces Full Year and Fourth Quarter 2025 Conference Call

Hosting Call at 5pm ET on Thursday, April 9th TULSA, OK / ACCESS Newswire / March 26, 2026 / ClearSign Technologies Corporation (Nasdaq:CLIR) ("ClearSign" or the "Company"), a leader in advanced combu...

2 months ago - Accesswire