ClearSign Technologies, Inc. (NASDAQ: CLIR) is a clean energy technology company that develops advanced combustion and emissions-control solutions for the power generation and oil & gas industries. Headquartered in Alameda, California, ClearSign has built a portfolio of patented diagnostic and hardware technologies designed to optimize combustion processes, reduce nitrogen oxide (NOx) and carbon monoxide (CO) emissions, and improve overall fuel efficiency. The company’s flagship platforms include its DLN-Z™ (Dry Low NOx Zonal) combustion system for gas turbines and its monitoring and control suite for industrial burners and process heaters.
Since its founding in the early 2000s, ClearSign has focused on bridging the gap between stringent environmental regulations and the operational needs of energy-intensive industries. Its products integrate real-time sensor data, advanced analytics, and proprietary burner hardware to deliver stable, low-emissions performance even under challenging load and fuel conditions. By offering retrofit solutions as well as original equipment manufacturer (OEM) integrations, the company serves natural gas pipelines, power plants, petrochemical facilities, and refineries around the globe.
ClearSign’s technologies have been deployed in North America, Europe, the Middle East, and Asia, often in partnership with leading energy companies and equipment suppliers. The firm’s global reach is supported by field engineering teams and alliances that ensure seamless units’ installation, commissioning, and ongoing performance optimization. Its continuous‐monitoring platforms also provide clients with actionable insights to maintain compliance with evolving air-quality standards and to achieve operational cost savings through enhanced combustion stability and reduced maintenance downtime.
The company is led by CEO David Burnett, whose background in environmental engineering and clean energy innovation has guided ClearSign’s product roadmap and commercialization strategy. Supported by a management team and board of directors with deep experience in combustion science, process engineering, and energy markets, ClearSign is positioned to address the growing demand for sustainable, regulatory-compliant combustion technologies in a shifting global energy landscape.
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