0001104659-26-042017
SEC filingClearSign Technologies reported record Q4 2025 revenue of $3.7 million and full-year revenue of $5.2 million, up 44% year-over-year, with $9.2 million in cash as of December 31, 2025.
ClearSign Technologies delivered record financial performance for Q4 and full year 2025, with Q4 revenue surging to $3.7 million from $590,000 in Q4 2024, primarily from shipping a 26 process burner order for a Texas Gulf Coast petrochemical plant via partner Zeeco. Full-year revenue reached $5.2 million, a 44% increase from $3.6 million in 2024, supported by process burners, midstream burners, flares, spare parts, and engineering services like CFD studies. Gross margin declined to 27% from 31% due to warranty accruals, while net loss widened slightly by $197,000, driven by $746,000 in non-recurring legal fees. Operating cash use rose to $4.7 million from $4.4 million, leaving $9.2 million in cash with 5.3 million shares outstanding post a 1-for-10 reverse split effective March 16, 2026. CEO Jim Deller highlighted growing industry recognition, a strong proposal pipeline, and innovations like the ClearSign Core-2 burner supporting up to 100% hydrogen. Strategic wins included orders for 36 Core burners at a U.S. Gulf Coast refinery and 32 at a California refinery, a fifth low-emission flare for California, comprehensive hydrogen testing from a petrochemical client, and two M Series burner orders. Successful DOE/NETL SBIR testing validated sub-5ppm emissions for flexible fuels. Management emphasized priorities to expand the pipeline and convert to orders, positioning for sustained momentum in ultra-low NOx combustion solutions amid tightening emissions regulations.