ClearSign Technologies Corporation
CLIR Industrials Pollution & Treatment Controls
ClearSign Technologies Corporation’s revenue for fiscal 2025 (year ended December 2025) was $5.2 million, up 45.6% from fiscal 2024. In the quarter to June 2026, revenue grew 321.1%, EPS grew 26.7% and free cash flow fell 137.5%, each against the same quarter a year earlier. Revenue growth for three consecutive years; insiders bought in the last twelve months.
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ClearSign Technologies Corporation (CLIR) EV/Sales
As of 16 October 2026, ClearSign Technologies Corporation (CLIR) trades at a EV/Sales of 0.8×. Over the past ten years it has ranged from 0.0× (December 2016) to 116× (April 2021); the current reading is higher than 17% of that period. That is below the Pollution & Treatment Controls industry median of 2.2× and below the Industrials sector median of 1.9×.
EV/Sales, daily
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Annual newest first
| Period | EV/Sales | Change |
|---|---|---|
| FY2025 | 4.2× | (73.14%) |
| FY2024 | 15.8× | 5.93% |
| FY2023 | 14.9× | (7.32%) |
| FY2022 | 16.1× | (48.92%) |
| FY2021 | 31.4× | 497.25% |
| FY2018 | 5.3× | (88.45%) |
| FY2017 | 45.6× | (19.11%) |
| FY2016 | 56.4× | — |
| FY2015 | 0.0× | — |
Quarterly newest first
| Period | EV/Sales | Change |
|---|---|---|
| Jun 2026 | 2.2× | (34.43%) |
| Mar 2026 | 3.4× | (19.84%) |
| Dec 2025 | 4.2× | (72.11%) |
| Sep 2025 | 15.2× | 140.44% |
| 20 more quarters | Free account |
Against its own ten years
EV/Sales against peers
| Company | EV/Sales |
|---|---|
| LIQT LiqTech International, Inc. compare | −0.4× |
| RAIN Rain Enhancement Technologies Holdco, Inc. compare | n/m |
| CLWT Euro Tech Holdings Company Limited compare | 0.2× |
| CLIR ClearSign Technologies Corporation | 0.8× |
| FTEK Fuel Tech, Inc. compare | 1.0× |
| BCHT Birchtech Corp. compare | 1.0× |
| TOMZ TOMI Environmental Solutions, Inc. compare | 2.1× |
| SCWO 374Water Inc. compare | 23.5× |
| DEVSF DevvStream Corp. compare | 76.5× |
| Pollution & Treatment Controls industry median | 2.2× |
| Industrials sector median | 1.9× |
| Market median | 2.1× |
What EV/Sales is
EV/Sales tells an investor how the value of a whole company, counting its debt and cash, compares with the sales it brings in.
((Stock Price × Shares (Basic, Weighted) (latest quarter)) + (Long Term Debt (Total) (latest quarter) + Current Part of Debt (latest quarter)) − Cash & Short Term Investments (latest quarter)) ÷ Revenue (TTM)