ClearSign makes combustion burner technology and flame sensing products for energy, chemical and industrial customers. CLIR reports earnings on Fri, Nov 13, 2026.
Earnings
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About ClearSign Technologies
ClearSign Technologies designs combustion technology for industrial and commercial burners and heating systems. Its main product, ClearSign Core, uses a special flame holder to shorten flames and reduce emissions, offering an alternative to some older pollution control equipment. The company also sells ClearSign Eye, a line of flame sensing products for burners that use a pilot for ignition. Its customers include oil refineries, oil producers, chemical and petrochemical plants, and operators of institutional, commercial and industrial boilers. ClearSign is based in Tulsa, Oklahoma.
- Headquarters
- Tulsa, OK