Our Products. Your Solution.
We are committed to developing innovative and differentiated combustion solutions. Our technologies for new systems and retrofits include sub 5 ppm NOx guarantees, no flame impingement, low CO emissions and reliable flame detection. ClearSign enables businesses of every scale the opportunity to incorporate combustion solutions that not only meet or exceed their operational and financial needs and goals, but also dramatically improve environmental impact.
Research & Development
We are creating new and improved technologies that offer unique solutions to some of the world’s most pressing productivity, energy efficiency and pollution problems affecting the energy, oil and gas production, boiler and processing industries. At our testing facility in Seattle, our team strives to develop solutions that increase emissions efficiency while maintaining our focus on durable, cost-effective solutions.
A Solution for All Industries
Regulatory mandates are the common theme among the industries ClearSign serves. We are the trusted leader in combustion solutions by providing unmatched innovation, quality and service in the industries we engage.

Industrial Segments for Heater Technologies
- Refinery
- Petrochemical
- Reforming
- Midstream Oil and Gas

Industrial Segments for Boiler Technologies
- Chemical
- Food
- Steel
- Cement
- Residential Heating
- Refinery
- Petrochemical

Industrial Segments for Flaring Technologies
- Upstream Oil and Gas
- Midstream Oil and Gas
- Downstream Oil and Gas
- Biogas
- Wastewater

Industrial Segments for Sensing Technologies
- Power and Steam Generation
- Refinery
- Flaring