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Upturn stock rating
CLIR logo

ClearSign Combustion Corporation (CLIR)

Upturn stock rating
$0.89
Last Close (24-hour delay)
Profit since last BUY-6.32%
upturn advisory
Consider higher Upturn Star rating
BUY since 5 days
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  • SELL Advisory (Loss)​
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Upturn Stock info Stock price based on last close
*as per simulation
(see disclosures)
Time period over
  • ALL
  • YEAR
  • MONTH
  • WEEK

Upturn Advisory Summary

10/24/2025: CLIR (1-star) has a low Upturn Star Rating. Not recommended to BUY.

Upturn Star Rating

rating

Not Recommended Performance

These Stocks/ETFs, based on Upturn Advisory, consistently fall short of market performance, signaling caution before investing.

Number of Analysts

rating

1 Analysts rated it

Very few follow this stock; limited insights, higher-risk early investing.

1 Year Target Price $2

1 Year Target Price $2

Analysts Price Target For last 52 week
$2 Target price
52w Low $0.46
Current$0.89
52w High $1.72

Analysis of Past Performance

Type Stock
Historic Profit -36.67%
Avg. Invested days 26
Today’s Advisory Consider higher Upturn Star rating
Upturn Star Rating upturn star rating icon
Upturn Advisory Performance Upturn Advisory Performance 1.0
Stock Returns Performance Upturn Returns Performance 1.0
Upturn Profits based on simulation Profits based on simulation
Upturn Profits based on simulation Last Close 10/24/2025

Key Highlights

Company Size Small-Cap Stock
Market Capitalization 49.78M USD
Price to earnings Ratio -
1Y Target Price 2
Price to earnings Ratio -
1Y Target Price 2
Volume (30-day avg) 1
Beta 1.18
52 Weeks Range 0.46 - 1.72
Updated Date 10/25/2025
52 Weeks Range 0.46 - 1.72
Updated Date 10/25/2025
Dividends yield (FY) -
Basic EPS (TTM) -0.1

Analyzing Revenue: Products, Geography and Growth

Revenue by Products

Earnings Date

Report Date -
When -
Estimate -
Actual -

Profitability

Profit Margin -203.65%
Operating Margin (TTM) -1381.96%

Management Effectiveness

Return on Assets (TTM) -28.05%
Return on Equity (TTM) -46.19%

Valuation

Trailing PE -
Forward PE 72.99
Enterprise Value 32085326
Price to Sales(TTM) 16.69
Enterprise Value 32085326
Price to Sales(TTM) 16.69
Enterprise Value to Revenue 10.76
Enterprise Value to EBITDA -3.71
Shares Outstanding 52426282
Shares Floating 43137393
Shares Outstanding 52426282
Shares Floating 43137393
Percent Insiders 5.56
Percent Institutions 24.74

ai summary icon Upturn AI SWOT

ClearSign Combustion Corporation

stock logo

Company Overview

overview logo History and Background

ClearSign Combustion Corporation (CLIR) was founded in 2008. It focuses on developing and deploying technologies that reduce emissions from industrial and commercial combustion systems.

business area logo Core Business Areas

  • Industrial Flares: Developing and deploying flare technology for the refining and chemical industries to significantly reduce NOx and other pollutants. Focus is for flare replacements and major upgrades.
  • Process Heaters: Development of flameless heaters focused on reducing emissions and improving efficiency in industrial heating applications.
  • Commercial/Industrial Boilers: Development and applications for industrial and commercial boilers to reduce pollution emissions.

leadership logo Leadership and Structure

The company's leadership includes executive officers and a board of directors, reflecting a typical corporate structure. Key figures include the CEO and CFO, who are responsible for the strategic direction and financial management of the company, respectively.

Top Products and Market Share

overview logo Key Offerings

  • Duplexu2122 Technology: The Duplexu2122 Technology is the core technology platform that is used in the reduction of emissions for industrial flares. This includes reducing NOx and CO2 emissions. Market share data is difficult to ascertain as projects are highly customized. Competitors include John Zink Hamworthy Combustion, Zeeco, and Callidus Technologies.
  • Process Burner Technology: Process burner technology for process heaters, boilers and combined heat and power systems. Market share data is difficult to ascertain as projects are highly customized. Competitors include Honeywell Thermal Solutions, Bloom Engineering, and Maxon.

Market Dynamics

industry overview logo Industry Overview

The combustion technology market is driven by increasingly stringent environmental regulations and the need for improved energy efficiency. The industry is competitive, with established players and emerging technology companies.

Positioning

ClearSign Combustion Corporation positions itself as a provider of advanced emissions reduction technology. Its competitive advantage lies in its proprietary Duplexu2122 technology, which offers a unique solution for reducing NOx emissions. The technologies are designed for existing plants to reduce the required equipment changes.

Total Addressable Market (TAM)

The TAM for emissions reduction technologies in combustion systems is substantial, estimated in the billions of dollars globally. ClearSign is positioned to capture a share of this market by offering solutions that meet or exceed regulatory requirements and provide economic benefits to customers.

Upturn SWOT Analysis

Strengths

  • Proprietary Duplexu2122 technology
  • Focus on emissions reduction
  • Experienced management team

Weaknesses

  • Limited financial resources
  • Small market capitalization
  • Reliance on key technologies

Opportunities

  • Increasingly stringent environmental regulations
  • Growing demand for energy-efficient technologies
  • Expansion into new markets

Threats

  • Competition from established players
  • Technological advancements by competitors
  • Economic downturns

Competitors and Market Share

competitor logo Key Competitors

  • John Zink Hamworthy Combustion (Not US Stock)
  • Zeeco (Not US Stock)
  • Honeywell Thermal Solutions (HON)
  • Bloom Engineering (Not US Stock)

Competitive Landscape

ClearSign Combustion Corporation competes with larger, more established companies. Its competitive advantage lies in its proprietary technology, but it faces challenges in terms of market access and brand recognition.

Growth Trajectory and Initiatives

Historical Growth: Historical growth has been inconsistent, with periods of rapid revenue growth followed by declines. This is due to timing of technology rollouts. Requires current 10K filings.

Future Projections: Future growth projections are uncertain and depend on the company's ability to secure new contracts and commercialize its technology. Review latest press releases and 10Q to understand growth.

Recent Initiatives: Recent initiatives include product development and strategic partnerships, which are aimed at expanding the company's market reach and accelerating growth. Requires review of latest press releases and 10Q filings.

Summary

ClearSign Combustion Corporation is a niche player in the combustion technology market with a focus on emissions reduction. Its proprietary Duplexu2122 technology is a key strength, but the company faces challenges related to limited financial resources and competition from larger players. Future growth depends on its ability to secure new contracts and commercialize its technology. The technology is in the early adoption stage and as emissions restrictions become more prevalent, the company has the potential to see faster growth.

Peer Comparison

Sources and Disclaimers

Data Sources:

  • ClearSign Combustion Corporation Investor Relations
  • Company Filings (10-K, 10-Q)
  • Industry Reports
  • Third-Party Market Research

Disclaimers:

This analysis is for informational purposes only and should not be considered investment advice. Market share data is estimates as data is not public. Financial information is not current and will need to be reviewed prior to making financial decsions.

Upturn AI Summarization AI Summarization is directionally correct and might not be accurate.

Upturn AI Summarization Summarized information shown could be a few years old and not current.

Upturn AI Summarization Fundamental Rating based on AI could be based on old data.

Upturn AI Summarization AI-generated summaries may have inaccuracies (hallucinations). Please verify the information before taking action.

About ClearSign Combustion Corporation

Exchange NASDAQ
Headquaters Tulsa, OK, United States
IPO Launch date 2012-04-25
CEO, Corporate Secretary & Director Dr. Colin James Deller Ph.D.
Sector Industrials
Industry Pollution & Treatment Controls
Full time employees 17
Full time employees 17

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, the People's Republic of China, and Hong Kong. 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 heaters; ClearSign core boiler burner technology; ClearSign core flaring burners that can be used individually, or in combination, to provide a flare product with extremely low nitrogen oxide emissions; and ClearSign eye flame sensor, an electrical flame sensor for industrial applications. It serves energy, institutional, commercial and industrial boiler, chemical, and petrochemical industries. ClearSign Technologies Corporation was formerly known as ClearSign Combustion Corporation and changed its name to ClearSign Technologies Corporation in November 2019. The company was incorporated in 2008 and is headquartered in Tulsa, Oklahoma.