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ClearSign Combustion Corporation (CLIR)



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Upturn Advisory Summary
09/16/2025: CLIR (1-star) is currently NOT-A-BUY. Pass it for now.
1 Year Target Price $2
1 Year Target Price $2
0 | Strong Buy |
1 | Buy |
0 | Hold |
0 | Sell |
0 | Strong Sell |
Analysis of Past Performance
Type Stock | Historic Profit -32.4% | Avg. Invested days 30 | Today’s Advisory PASS |
Upturn Star Rating ![]() ![]() | Upturn Advisory Performance ![]() | Stock Returns Performance ![]() |
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Key Highlights
Company Size Small-Cap Stock | Market Capitalization 28.32M USD | Price to earnings Ratio - | 1Y Target Price 2 |
Price to earnings Ratio - | 1Y Target Price 2 | ||
Volume (30-day avg) 1 | Beta 1.1 | 52 Weeks Range 0.46 - 1.72 | Updated Date 09/16/2025 |
52 Weeks Range 0.46 - 1.72 | Updated Date 09/16/2025 | ||
Dividends yield (FY) - | Basic EPS (TTM) -0.11 |
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 16184434 | Price to Sales(TTM) 9.49 |
Enterprise Value 16184434 | Price to Sales(TTM) 9.49 | ||
Enterprise Value to Revenue 5.43 | Enterprise Value to EBITDA -3.71 | Shares Outstanding 52426300 | Shares Floating 43137393 |
Shares Outstanding 52426300 | Shares Floating 43137393 | ||
Percent Insiders 5.56 | Percent Institutions 24.74 |
Upturn AI SWOT
ClearSign Combustion Corporation

Company Overview
History and Background
ClearSign Combustion Corporation was founded to develop and commercialize technologies that improve combustion system performance, with a focus on reducing emissions and increasing efficiency. They have evolved from initial technology development to commercial deployment.
Core Business Areas
- Industrial and Commercial Boilers: Design, development, and sales of boiler burners and combustion systems that reduce NOx, CO, and other emissions for industrial and commercial applications.
- Flare and Chemical Reactors: Development of technologies to reduce emissions and improve efficiency of flares and chemical reactors in the petrochemical industry.
Leadership and Structure
The leadership team consists of experienced professionals in engineering, sales, and management. The organizational structure involves departments focused on technology development, sales and marketing, and operations.
Top Products and Market Share
Key Offerings
- Duplexu2122 Technology for Boilers: A burner system for boilers that reduces NOx and other emissions without the need for external catalysts or reagents. Market share is estimated to be very small given competitors like Babcock & Wilcox and John Zink Hamworthy Combustion. Revenue generated from this product is not publicly disclosed.
- Flare and Chemical Reactor Solutions: Solutions designed to improve flare efficiency and reduce emissions in oil and gas operations. Market share information is limited due to the niche nature of the product. Competitors include Zeeco and Callidus Technologies.
Market Dynamics
Industry Overview
The combustion technology industry is driven by increasing environmental regulations regarding emissions and the need for improved energy efficiency.
Positioning
ClearSign Combustion Corporation aims to differentiate itself through its proprietary Duplexu2122 technology and its ability to reduce emissions without the use of expensive catalysts. It holds a niche position focusing on specialized combustion applications.
Total Addressable Market (TAM)
The total addressable market for industrial combustion solutions is estimated to be billions of dollars annually. ClearSign's TAM is a fraction of this, focusing on segments where its unique technology provides a distinct advantage.
Upturn SWOT Analysis
Strengths
- Proprietary Duplexu2122 technology
- Low NOx emissions without catalysts
- Potential for energy efficiency improvements
- Focus on niche applications
Weaknesses
- Limited financial resources
- Small market share compared to larger competitors
- Dependence on regulatory drivers for adoption
- Limited historical profitability
Opportunities
- Increasingly stringent emissions regulations
- Growing demand for energy-efficient technologies
- Expansion into new geographic markets
- Partnerships with larger industrial companies
Threats
- Competition from established players
- Potential changes in environmental regulations
- Economic downturns impacting capital spending
- Technological advancements by competitors
Competitors and Market Share
Key Competitors
- BWXT (BWXT)
- John Zink Hamworthy Combustion (N/A)
- Zeeco (N/A)
- Callidus Technologies (N/A)
Competitive Landscape
ClearSign is smaller than its major competitors, but its proprietary technology allows it to compete in niche markets, particularly those focused on ultra-low emissions.
Growth Trajectory and Initiatives
Historical Growth: Growth has been uneven, with periods of rapid growth followed by slowdowns. Overall growth has been slower than anticipated.
Future Projections: Analyst estimates for future growth are varied and depend on the company's ability to secure new contracts and commercialize its technologies effectively.
Recent Initiatives: Recent initiatives include expanding sales efforts and pursuing partnerships with larger industrial companies to increase market reach.
Summary
ClearSign Combustion Corporation possesses promising combustion technology and operates in a market driven by stricter emission standards. However, its small size, inconsistent financial performance, and strong competition pose significant challenges. To thrive, ClearSign must secure more contracts, improve its financial stability, and leverage its technological advantages. The company needs to look out for changes in environmental regulations and increased competition.
Peer Comparison
Sources and Disclaimers
Data Sources:
- SEC Filings (10-K, 10-Q)
- Company Website
- Industry Reports
- Analyst Reports
Disclaimers:
The data provided is based on available information and may not be entirely accurate or complete. Market share figures are estimates. This analysis is not financial advice.
AI Summarization is directionally correct and might not be accurate.
Summarized information shown could be a few years old and not current.
Fundamental Rating based on AI could be based on old data.
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 | Website https://www.clearsign.com |
Full time employees 17 | Website https://www.clearsign.com |
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.

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