D
ClearSign Technologies Corporation CLIR
$3.70 -$0.03-0.80% NASDAQ
Recommendation
Dividend Power Score
Prev Close
Volume
Avg Vol (90D)
Market Cap
Dividend & Yield
--
52-Week Range
P/E (TTM)
--
EPS (TTM)

Company Overview

ClearSign Technologies Corporation is a U.S.-based cleantech company focused on developing and commercializing advanced combustion and sensing technologies designed to significantly reduce pollutant emissions. The company operates primarily within the industrial combustion, energy, petrochemical, and process heating industries, serving customers that require compliance with increasingly stringent air-quality and emissions regulations. Its solutions are aimed at lowering nitrogen oxide (NOx), carbon monoxide, and particulate emissions without requiring costly post-combustion treatment systems.

The company’s core offerings center on proprietary burner and sensor technologies that enable ultra-low emissions while maintaining operational efficiency. ClearSign’s strategic positioning is based on its ability to retrofit existing industrial systems, which lowers adoption costs for customers compared to full equipment replacement. Founded in the early 2000s, ClearSign evolved from a research-focused entity into a commercialization-stage company as regulatory pressure and demand for cleaner industrial operations increased, particularly in North America and Europe.

Business Operations

ClearSign generates revenue primarily through the development, sale, and licensing of its combustion and sensing technologies, with its business organized around two main technology platforms: ClearSign Core™ and ClearSign Eye™. ClearSign Core™ is a ceramic-lined burner technology that enables stable combustion while dramatically reducing NOx emissions, and is designed for use in boilers, heaters, and furnaces across industrial applications. ClearSign Eye™ is a flame-sensing and monitoring technology that enhances safety, control, and emissions performance in combustion systems.

Operations include both domestic and international activities, with engineering, testing, and corporate functions based in the United States. The company works closely with industrial customers, engineering firms, and equipment manufacturers, and has entered into partnerships and pilot deployments with energy and petrochemical operators to validate and scale its technologies. ClearSign does not operate manufacturing at scale internally, instead relying on strategic manufacturing and integration partners.

Strategic Position & Investments

ClearSign’s strategic direction emphasizes commercialization and broader adoption of its ultra-low-emissions technologies in regulated industrial markets. Growth initiatives include expanding retrofit applications for existing industrial infrastructure, securing long-term supply and licensing agreements, and deepening relationships with major energy and petrochemical companies. The company has prioritized markets where emissions compliance costs are high and regulatory enforcement is well established.

Investment activity has focused on internal research and development rather than large-scale acquisitions. ClearSign has built its portfolio around internally developed intellectual property, with ClearSign Core™ and ClearSign Eye™ representing the company’s primary technology assets. The company is also involved in emerging applications of combustion control and sensing technologies that support energy transition goals, including cleaner hydrogen-compatible combustion systems, though the pace and commercial impact of these initiatives remain dependent on market adoption.

Geographic Footprint

ClearSign is headquartered in the United States, with its primary operational and research activities based in North America. The company’s main customer engagements have historically been concentrated in the United States, particularly in regions with dense industrial infrastructure and strict air-quality regulations, such as California and the Gulf Coast.

Internationally, ClearSign has pursued opportunities in Europe and parts of Asia, primarily through partnerships, pilot projects, and licensing arrangements rather than direct large-scale operations. Its geographic strategy focuses on markets with established regulatory frameworks and industrial demand for ultra-low-emission combustion solutions.

Leadership & Governance

ClearSign was founded by technologists with backgrounds in combustion science and applied physics, shaping a leadership philosophy centered on innovation, regulatory alignment, and practical industrial deployment. The company is led by executives with experience in energy technology commercialization and public-company governance, emphasizing disciplined capital use and long-term adoption of proprietary technologies.

Key executives include:

  • Colin DellerPresident & Chief Executive Officer
  • John JenkinsFounder & Chief Technology Officer
  • Bruce KelleyChief Financial Officer

The leadership team’s strategic vision focuses on transitioning ClearSign from pilot-scale deployments to recurring commercial revenue through partnerships with established industrial operators and equipment providers.

Data complied by narrative technology. May contain errors

Top Tech Stocks
See All »
B
NVDA NASDAQ $177.96
B
AAPL NASDAQ $249.25
B
MSFT NASDAQ $389.12
Top Consumer Staple Stocks
See All »
B
WMT NASDAQ $119.93
B
Top Financial Stocks
See All »
B
B
JPM NYSE $285.00
B
V NYSE $298.24
Top Energy Stocks
See All »
B
ENB.TO TSX $73.47
B
ENB NYSE $53.92
Top Health Care Stocks
See All »
B
LLY NYSE $918.52
B
JNJ NYSE $237.63
B
AMGN NASDAQ $351.80
Top Real Estate Stocks
See All »
B
PLD NYSE $130.17