ClearSign Technologies Corporation (CLIR) Income Statement
CLIR 2025 at a glance
Fiscal year ended December 31, 2025 · U.S. dollarsCLIR revenue and net income
Where CLIR's revenue goes
2025Each bar shows an amount and its share of revenue. CLIR kept −105.0% of revenue as net income.
CLIR profit margins
CLIR growth rates
to 2025| 1 year | 3 years | 5 years | 10 years | |
|---|---|---|---|---|
| Revenue | +45.6% | +141.0% | +160.1% | +56.1% |
| Gross profit | +27.4% | +130.7% | — | +62.6% |
| Operating income | — | — | — | — |
| Net income | — | — | — | — |
| EPS (diluted) | — | — | — | — |
1-year change and average annual growth (CAGR) over 3, 5 and 10 fiscal years. "—" when a starting value was zero or negative.
CLIR quarterly EPS vs estimates
ClearSign Technologies beat the analyst EPS estimate in 6 of the last 8 quarters. Next report: November 13, 2026 (estimate $-0.20).
CLIR income statement
| 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | |
|---|---|---|---|---|---|---|---|---|---|---|
| Revenue | $5.2M | $3.6M | $2.4M | $374,000 | $607,000 | $44,000 | $0 | $530,000 | $540,000 | $621,000 |
| Cost of revenue | $3.8M | $2.5M | $1.6M | $258,000 | $1.1M | $279,000 | $1,000 | $427,000 | $380,000 | $485,000 |
| Gross profit | $1.4M | $1.1M | $817,000 | $116,000 | −$452,000 | −$279,000 | −$1,000 | $103,000 | $160,000 | $136,000 |
| Research & development | $1.4M | $1.5M | $739,000 | $505,000 | $2.7M | $2.0M | $3.1M | $4.0M | $4.7M | $4.8M |
| Sales, general & admin | $6.7M | $6.1M | $6.1M | $5.7M | $5.0M | $4.6M | $5.5M | $5.7M | $5.2M | $6.5M |
| Total operating expenses | $7.4M | $7.6M | $6.8M | $6.0M | $7.7M | $6.7M | $8.6M | $9.7M | $9.9M | $11.3M |
| Operating income | −$5.9M | −$6.5M | −$6.0M | −$5.9M | −$8.1M | −$6.9M | −$8.6M | −$9.6M | −$9.7M | −$11.2M |
| Interest income | $439,000 | $516,000 | $324,000 | — | $1,000 | $2,000 | $101,000 | $71,000 | $32,000 | $32,000 |
| Interest expense | — | — | — | $194,000 | $1,000 | $0 | $0 | $0 | $0 | $0 |
| Income before taxes | −$5.5M | −$5.3M | −$5.2M | −$5.8M | −$7.9M | −$6.9M | −$8.5M | −$9.6M | −$9.7M | −$11.2M |
| Income taxes | — | — | — | −$359,000 | −$2,000 | −$48,000 | −$104,000 | $71,000 | −$297,000 | $0 |
| Net income | −$5.5M | −$5.3M | −$5.2M | −$5.8M | −$7.9M | −$6.8M | −$8.4M | −$9.6M | −$9.7M | −$11.2M |
| EBITDA | −$5.2M | −$5.6M | −$5.7M | −$5.5M | −$7.6M | −$6.7M | −$8.2M | −$9.4M | −$9.4M | −$11.2M |
| EPS (diluted) | −$1.90 | −$1.08 | −$1.12 | −$0.88 | −$2.61 | −$0.78 | −$0.32 | −$0.43 | −$0.63 | −$0.86 |
| Gross margin | 27.2% | 31.1% | 34.0% | 31.0% | −74.5% | −634.1% | — | 19.4% | 29.6% | 21.9% |
| Operating margin | −113.4% | −180.4% | −248.9% | −1,573.5% | −1,341.8% | −15,754.5% | — | −1,815.5% | −1,798.5% | −1,804.3% |
| Net margin | −105.0% | −147.4% | −216.1% | −1,539.6% | −1,299.8% | −15,540.9% | — | −1,805.1% | −1,792.6% | −1,799.2% |
| Jun '26 | Mar '26 | Dec '25 | Sep '25 | Jun '25 | Mar '25 | Dec '24 | Sep '24 | Jun '24 | Mar '24 | Dec '23 | Sep '23 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Revenue | $560,000 | $191,000 | $3.7M | $1.0M | $133,000 | $401,000 | $590,000 | $1.9M | $45,000 | $1.1M | $1.3M | $85,000 |
| Cost of revenue | $332,000 | $584,000 | $2.9M | $661,000 | $78,000 | $205,000 | $502,000 | $1.3M | $3,000 | $665,000 | $716,000 | $61,000 |
| Gross profit | $228,000 | −$393,000 | $805,000 | $368,000 | $55,000 | $196,000 | $88,000 | $551,000 | $42,000 | $437,000 | $558,000 | $24,000 |
| Research & development | $448,000 | $249,000 | $418,000 | $310,000 | $247,000 | $447,000 | $459,000 | $329,000 | $402,000 | $281,000 | $299,000 | $93,000 |
| Sales, general & admin | $1.3M | $1.6M | $1.2M | $1.8M | $1.6M | $2.0M | $1.3M | $1.7M | $1.8M | $1.4M | $1.4M | $1.4M |
| Total operating expenses | $1.7M | $1.9M | $1.2M | $2.1M | $1.9M | $2.5M | $1.8M | $2.0M | $2.2M | $1.7M | $2.3M | $1.5M |
| Operating income | −$1.5M | −$2.3M | −$397,000 | −$1.8M | −$1.8M | −$2.3M | −$1.7M | −$1.4M | −$2.1M | −$1.3M | −$1.0M | −$1.5M |
| Interest income | — | $62,000 | $86,000 | $105,000 | — | $133,000 | $232,000 | $146,000 | — | $61,000 | — | $85,000 |
| Interest expense | — | — | — | — | — | — | — | — | — | $275,000 | — | — |
| Income before taxes | −$1.3M | −$2.2M | −$311,000 | −$1.4M | −$1.7M | −$2.1M | −$1.2M | −$1.2M | −$1.9M | −$1.1M | −$955,000 | −$1.3M |
| Income taxes | — | — | — | — | — | — | −$23,724 | −$1.2M | $1 | $474,000 | — | −$105,000 |
| Net income | −$1.3M | −$2.2M | −$311,000 | −$1.4M | −$1.7M | −$2.1M | −$1.2M | −$1.2M | −$1.9M | −$1.1M | −$955,000 | −$1.3M |
| EBITDA | −$1.2M | −$2.1M | −$245,000 | −$1.4M | −$1.7M | −$2.0M | −$1.3M | −$1.2M | −$1.9M | −$1.1M | — | −$1.4M |
| EPS (diluted) | −$0.22 | −$0.39 | — | −$0.30 | −$0.30 | −$0.40 | — | −$0.20 | −$0.40 | −$0.30 | −$0.02 | −$0.30 |
| Gross margin | 40.7% | −205.8% | 21.9% | 35.8% | 41.4% | 48.9% | 14.9% | 29.6% | 93.3% | 39.7% | 43.8% | 28.2% |
| Operating margin | −267.5% | −1,193.2% | −10.8% | −170.1% | −1,382.0% | −562.8% | −282.4% | −77.1% | −4,748.9% | −113.6% | −81.7% | −1,761.2% |
| Net margin | −233.4% | −1,146.6% | −8.5% | −138.9% | −1,263.2% | −517.7% | −197.3% | −62.1% | −4,160.0% | −100.5% | −75.0% | −1,567.1% |
Quarterly columns are labeled by the month the quarter ended. Figures in U.S. dollars as reported in CLIR's financial statements (latest annual report filed March 31, 2026); data from EODHD. Sales, general & administrative expenses include sales and marketing.
CLIR financial results
In fiscal year 2025 (ended December 31, 2025), ClearSign Technologies reported revenue of $5.2 million, up 45.6% from the year before. It had a net loss of $5.5 million, a net profit margin of −105.0%. Diluted earnings per share came to −$1.90. Over five years revenue grew at an average rate of 160.1% a year.
See the CLIR stock overview for the latest quote and news, or the CLIR chart for price history and technical indicators.
CLIR income statement FAQ
What is ClearSign Technologies's annual revenue?
ClearSign Technologies reported total revenue of $5.2 million for fiscal year 2025, which ended on December 31, 2025. That was up 45.6% from $3.6 million the previous year.
Is ClearSign Technologies profitable?
No. ClearSign Technologies reported a net loss of $5.5 million in fiscal 2025, a net profit margin of −105.0%; its operating margin was −113.4%.
What is ClearSign Technologies's gross margin?
ClearSign Technologies's gross margin was 27.2% in fiscal 2025: for every $100 of revenue, ClearSign Technologies kept $27 after the direct cost of its products and services.
How much does ClearSign Technologies spend on research and development?
ClearSign Technologies spent $1.4 million on research and development in fiscal 2025, 27.2% of revenue.
How fast is ClearSign Technologies growing?
Revenue grew 160.1% a year on average over the last five fiscal years, from $0.0 million to $5.2 million.
What are ClearSign Technologies's earnings per share?
ClearSign Technologies earned $-1.90 per diluted share in fiscal 2025, compared with $-1.08 a year earlier.
When will ClearSign Technologies report its next earnings?
ClearSign Technologies is expected to report results for the quarter ending September 30, 2026 on November 13, 2026.
When does ClearSign Technologies's fiscal year end?
ClearSign Technologies's fiscal year ends in December. The latest annual report covers the year ended December 31, 2025 and was filed on March 31, 2026.