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ClearSign Combustion Corporation (CLIR)

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Upturn Advisory Summary
12/29/2025: 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 -45.21% | Avg. Invested days 30 | Today’s Advisory PASS |
Upturn Star Rating ![]() | Upturn Advisory Performance | Stock Returns Performance |
Key Highlights
Company Size Small-Cap Stock | Market Capitalization 32.43M USD | Price to earnings Ratio - | 1Y Target Price 2 |
Price to earnings Ratio - | 1Y Target Price 2 | ||
Volume (30-day avg) 1 | Beta 1.19 | 52 Weeks Range 0.46 - 1.72 | Updated Date 12/29/2025 |
52 Weeks Range 0.46 - 1.72 | Updated Date 12/29/2025 | ||
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 -294.89% | Operating Margin (TTM) -170.07% |
Management Effectiveness
Return on Assets (TTM) -31.46% | Return on Equity (TTM) -53.13% |
Valuation
Trailing PE - | Forward PE 72.99 | Enterprise Value 22129848 | Price to Sales(TTM) 15.06 |
Enterprise Value 22129848 | Price to Sales(TTM) 15.06 | ||
Enterprise Value to Revenue 10.28 | Enterprise Value to EBITDA -3.71 | Shares Outstanding 53273405 | Shares Floating 43984654 |
Shares Outstanding 53273405 | Shares Floating 43984654 | ||
Percent Insiders 5.47 | Percent Institutions 23.78 |
Upturn AI SWOT
ClearSign Combustion Corporation

Company Overview
History and Background
ClearSign Combustion Corporation was founded in 2008 with the aim of developing and commercializing clean and efficient combustion technologies. The company's core innovation is its patented ClearSign ESu2122 (Energy Saver) burner, designed to reduce NOx emissions and improve fuel efficiency. Over the years, ClearSign has focused on securing patents, developing prototypes, and seeking strategic partnerships to bring its technology to market in various industrial applications.
Core Business Areas
- Clean Combustion Technology: ClearSign focuses on developing and licensing advanced combustion technologies, primarily its ClearSign ESu2122 burners, which are designed to significantly reduce NOx emissions and improve fuel efficiency in industrial and commercial applications. This involves redesigning the combustion process to achieve lower temperatures and more complete fuel burn.
- Product Development and Licensing: The company develops proprietary burner technology and aims to license it to original equipment manufacturers (OEMs) or integrate it into new equipment. This segment includes R&D efforts, patent protection, and market validation.
Leadership and Structure
ClearSign Combustion Corporation operates as a publicly traded company with a management team responsible for its strategic direction, technological development, and business operations. Specific leadership details would require up-to-date SEC filings.
Top Products and Market Share
Key Offerings
- ClearSign ESu2122 Burner: The flagship product is the ClearSign ESu2122 burner technology. This technology is designed to replace conventional burners in various industrial heating applications, including boilers, furnaces, and process heaters. It aims to achieve ultra-low NOx emissions (below 5 ppm), enhance fuel efficiency, and reduce greenhouse gas emissions. Competitors include established industrial burner manufacturers like Honeywell (which acquired <<Honeywell>> Industrial Combustion Inc.), John Zink Hamworthy Combustion, and specialized emissions control technology providers.
Market Dynamics
Industry Overview
ClearSign operates within the industrial combustion and emissions control market. This sector is driven by increasingly stringent environmental regulations, the need for energy efficiency, and the demand for safer and more reliable industrial processes. Industries such as oil and gas, power generation, manufacturing, and food processing are key end-users.
Positioning
ClearSign's positioning is as an innovator offering a disruptive technology for cleaner and more efficient combustion. Its competitive advantage lies in its patented technology that claims to achieve significant reductions in NOx emissions without complex after-treatment systems, potentially offering a cost-effective solution for compliance with environmental mandates. However, as a relatively smaller company, it faces challenges in market penetration against established players.
Total Addressable Market (TAM)
The global industrial burner market is substantial, with estimates varying but generally in the billions of dollars. The market for emissions control technologies is also significant and growing. ClearSign is positioned to address a segment of this market, particularly those requiring ultra-low NOx emissions. Its TAM is the global market for industrial burners and associated emissions reduction solutions, which is expected to continue to grow due to regulatory drivers and the pursuit of operational efficiency.
Upturn SWOT Analysis
Strengths
- Proprietary and patented clean combustion technology (ClearSign ESu2122)
- Potential for significant reduction in NOx emissions
- Improved fuel efficiency
- No requirement for complex after-treatment systems
- Focus on a growing market driven by environmental regulations
Weaknesses
- Limited brand recognition and market penetration compared to established competitors
- Reliance on licensing and partnerships for revenue generation
- Potentially higher upfront costs for adoption (if applicable)
- Need for significant capital to scale operations and manufacturing
- Track record and long-term performance in diverse real-world applications still being established
Opportunities
- Increasingly stringent environmental regulations worldwide
- Growing demand for energy efficiency in industrial processes
- Partnerships with major industrial equipment manufacturers (OEMs)
- Expansion into new geographic markets
- Development of complementary technologies for other pollutants or energy sources
Threats
- Competition from established players with existing market share and distribution networks
- Slow adoption rates by industries due to capital investment concerns or inertia
- Changes in environmental regulations that may favor alternative technologies
- Technological obsolescence if newer, more effective solutions emerge
- Economic downturns impacting industrial capital expenditures
Competitors and Market Share
Key Competitors
- Honeywell International Inc. (HON)
- John Zink Company, LLC (private)
- Veolia Environnement S.A. (VEO - global, but has significant US presence in environmental tech)
- Cormetech, Inc. (private, focuses on SCR technology but relevant in NOx reduction)
Competitive Landscape
ClearSign faces competition from large, established industrial equipment manufacturers and specialized emissions control companies. While ClearSign's patented technology offers a unique approach to NOx reduction, competitors often have broader product portfolios, established customer relationships, and extensive sales and service networks. ClearSign's advantage lies in its focused innovation on a specific, critical emission challenge, potentially offering a more elegant and cost-effective solution for certain applications. However, it must overcome the hurdle of demonstrating proven, long-term performance and reliability at scale to gain significant market share.
Growth Trajectory and Initiatives
Historical Growth: Historically, ClearSign's growth has been characterized by technological development, patent acquisition, securing pilot projects, and forging strategic partnerships. Revenue has been minimal, reflecting its phase of commercialization and market penetration. The focus has been on building the foundation for future revenue streams rather than demonstrating significant historical revenue growth.
Future Projections: Future projections for ClearSign are contingent on the successful adoption of its technology by industrial clients and OEMs. Analysts' estimates, if available, would likely focus on the potential revenue from licensing agreements, sales of burner systems, and the expansion of its addressable market as environmental regulations tighten. Growth is expected to be driven by the increasing demand for ultra-low NOx emission solutions.
Recent Initiatives: Recent initiatives likely include efforts to secure larger commercial contracts, expand manufacturing capabilities (either directly or through partners), and forge deeper strategic alliances with key players in the industrial equipment and energy sectors. Marketing efforts to raise awareness of their technology and its benefits are also crucial.
Summary
ClearSign Combustion Corporation is a specialized technology company focused on developing ultra-low NOx emission burners. Its patented technology offers a promising solution to stringent environmental regulations and the demand for fuel efficiency. The company's strengths lie in its innovative technology, but it faces challenges in market penetration against established players and requires significant capital for growth. Its success hinges on securing partnerships and demonstrating the commercial viability and scalability of its clean combustion solutions.
Similar Stocks
Sources and Disclaimers
Data Sources:
- Company official website (ClearSign Combustion Corporation)
- SEC filings (10-K, 10-Q)
- Financial news outlets
- Industry research reports (general market data)
Disclaimers:
This JSON output is generated based on publicly available information and general industry knowledge. It is not a substitute for professional financial advice. Specific financial data (revenue, net income, EPS, etc.) requires consultation of the most recent official financial statements and filings. Market share data is an estimate and can fluctuate. Competitor analysis is based on general market presence and does not encompass every potential competitor. This analysis is for informational purposes only and does not constitute an investment recommendation.
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 16 | Website https://www.clearsign.com |
Full time employees 16 | 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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