Filing Flows › ClearSign Technologies (CLIR) › Q3 2025
ClearSign Technologies (CLIR) Q3 2025 earnings results (third quarter 2025)
10-Q filed Nov 14, 2025
ClearSign Technologies (CLIR) reported revenue of $1.0M for the third quarter 2025 (Q3 2025), -45% from a year earlier and +674% from the quarter before. Operating margin was -170.1%, net loss $1.4M (138.9% of revenue).
ClearSign Technologies, Q3 2025: revenue $1.0M (-45% year over year), operating margin -170.1%, net loss $1.4M, operating cash flow −$1.8M. The chart follows the revenue to costs, profit and cash.
| Q3 2025 | Amount | Q/Q | Y/Y |
|---|---|---|---|
| Revenue | $1.0M | +674% | -45% |
| Operating profit | −$1.8M | — | — |
| Net earnings | −$1.4M | — | — |
| Operating cash flow | −$1.8M | — | — |
What changed
Revenue was $1.0M in Q3 2025, down 45% year over year and up 674% from the previous quarter.
Gross margin was 35.8%, up 6.1 points from a year earlier. Operating costs exceeded revenue by $1.8M, an operating margin of -170.1%. Operating expenses grew 7% against a revenue fall of 45%. The quarter ended with a net loss of $1.4M, narrower than the previous quarter's $1.7M loss. Non-operating items added $321K, -22% of pre-tax earnings, so the bottom line overstates operating performance.
Operating cash flow was −$1.8M. Non-cash charges added back $48K of depreciation and amortization and $767K of share-based compensation. Working capital and other items used $1.2M.
Questions
What was ClearSign Technologies' revenue in the third quarter 2025?
ClearSign Technologies (CLIR) reported revenue of $1.0M for the third quarter 2025 (Q3 2025), -45% from a year earlier and +674% from the quarter before.
Was ClearSign Technologies profitable in the third quarter 2025?
Operating loss was $1.8M (-170.1% of revenue) and net loss $1.4M.