CLIR · ClearSign Technologies Corp
$3.90
-0.12 (-2.99%)
At close · Jul 30
Going-concern doubt
— flagged May 15, 2026
Substantial doubt about the company's ability to continue as a going concern.
“There can be no assurance that we will be successful in achieving our long term plans, or that such plans, if consummated, will result in profitable operations or enable us to continue in the long term as a going concern.”View the 10-Q filed May 15, 2026
Market Cap
$21.11M
Shares
5.41M
ClearSign Technologies Corp Earnings Call Transcripts
Every quarterly earnings call for ClearSign Technologies Corp (CLIR) — the full transcript with speaker labels, the audio replay, AI call highlights and a management-tone score, plus the matching 8-K earnings release and the quarter's 10-Q or 10-K. Investor days and conferences appear here too.
Revenue & result across quarters
Revenue Net income YoY up YoY down artefacts
▼100%
$
−$1.49M
'22 Q1
22-04-08
·
$
−$1.64M
'22 Q2
22-09-06
▲70.5%
$324,000
−$1.31M
'22 Q3
22-09-30
▼7.4%
$50,000
−$1.32M
'22 Q4
22-12-31
·
$894,000
−$1.43M
'23 Q1
23-04-07
·
$150,000
−$1.48M
'23 Q2
23-09-01
▼73.8%
$85,000
−$1.33M
'23 Q3
23-11-15
▲2448%
$1.27M
−$955,000
'23 Q4
24-02-07
▲23.3%
$1.10M
−$1.11M
'24 Q1
24-04-25
▼70%
$45,000
−$1.87M
'24 Q2
24-08-23
▲2087.1%
$1.86M
−$1.16M
'24 Q3
24-11-21
▼63.6%
$401,000
−$2.08M
'25 Q1
25-04-04
▲195.6%
$133,000
−$1.68M
'25 Q2
25-08-15
▼44.6%
$1.03M
−$1.43M
'25 Q3
25-11-21
▲522.2%
$3.67M
−$311,000
'25 Q4
26-04-09
LATEST
▼52.4%
$191,000
−$2.19M
'26 Q1
26-05-21
Earnings call
FY26 · Q1
2026-05-21
ClearSign Technologies Corp Q1 FY2026 Earnings Call
Positive tone
Refinery order progression (California 32-burner)
Market opportunity and emissions regulations
Competitive landscape (SCR displacement)
Revenue
$191,000
▼ 52.4% YoY Diluted EPS
$-0.39
Gross margin
-205.8%
Rev · 8q
Audio
Transcript
Slides
8-K10-Q
Earnings call
FY25 · Q4
2026-04-09
ClearSign Technologies Corp Q4 FY2025 Earnings Call
Positive tone
Middle East macro risk
Market opportunity and addressable market
Cost advantage versus SCR
Revenue
$3.67M
▲ 522.2% YoY Diluted EPS
$-0.06
Gross margin
21.9%
Rev · 8q
Audio
Transcript
Slides
8-K10-K
Earnings call
FY25 · Q3
2025-11-21
ClearSign Technologies Corp Q3 FY2025 Earnings Call
Confident tone
Hydrogen burner capability
Order growth across product lines
Flare business and repeat customers
Revenue
$1.03M
▼ 44.6% YoY Diluted EPS
$-0.26
Gross margin
35.8%
Rev · 8q
Audio
Transcript
Slides
8-K10-Q
Earnings call
FY25 · Q2
2025-08-15
ClearSign Technologies Corp Q2 FY2025 Earnings Call
Positive tone
Zeeco partnership
Advanced engineering / CFD modeling work
Financial results and cash position
Revenue
$133,000
▲ 195.6% YoY Diluted EPS
$-0.30
Gross margin
41.4%
Rev · 8q
Audio
Transcript
Slides
8-K10-Q
Earnings call
FY25 · Q1
2025-04-04
ClearSign Technologies Corp Q1 FY2025 Earnings Call
Positive tone
Large Texas Gulf Coast process burner order
ClearSign Eye Sensor commercialization
Revenue decline and legal costs
Revenue
$401,000
▼ 63.6% YoY Diluted EPS
$-0.38
Gross margin
48.9%
Rev · 8q
Audio
Transcript
Slides
8-K10-Q
Earnings call
FY24 · Q3
2024-11-21
ClearSign Technologies Corp Q3 FY2024 Earnings Call
Confident tone
Zeeco partnership and co-marketing
Process burner orders and pipeline growth
BACT designation and NOx regulatory driver
Revenue
$1.86M
▲ 2087.1% YoY Diluted EPS
$-0.20
Gross margin
29.6%
Rev · 8q
Audio
Transcript
Slides
8-K10-Q
Earnings call
FY24 · Q2
2024-08-23
ClearSign Technologies Corp Q2 FY2024 Earnings Call
Positive tone
Boiler burner technology and California GET program
Process burner commercial progress
Industry conferences and customer engagement
Revenue
$45,000
▼ 70% YoY Diluted EPS
$-0.40
Gross margin
93.3%
Rev · 8q
Audio
Transcript
Slides
8-K10-Q
Earnings call
FY24 · Q1
2024-04-25
ClearSign Technologies Corp Q1 FY2024 Earnings Call
Positive tone
Process burner business / refining customers
Hydrogen burner / DOE grant
Financial results and liquidity
Revenue
$1.10M
▲ 23.3% YoY Diluted EPS
$-0.30
Gross margin
39.7%
Rev · 8q
Audio
Transcript
Slides
8-K10-Q
Earnings call
FY23 · Q4
2024-02-07
ClearSign Technologies Corp Q4 FY2023 Earnings Call
Confident tone
California BACT regulatory designation
Process burner installations and startup
Pipeline and end-user interest
Revenue
$1.27M
▲ 2448% YoY Diluted EPS
$-0.20
Gross margin
43.8%
Rev · 8q
Audio
Transcript
Slides
8-K10-K
Earnings call
FY23 · Q3
2023-11-15
ClearSign Technologies Corp Q3 FY2023 Earnings Call
Revenue
$85,000
▼ 73.8% YoY Diluted EPS
$-0.30
Gross margin
28.2%
Rev · 8q
Audio
Transcript
Slides
8-K10-Q
Earnings call
FY23 · Q2
2023-09-01
ClearSign Technologies Corp Q2 FY2023 Earnings Call
Revenue
$150,000
Diluted EPS
$-0.40
Gross margin
86.0%
Rev · 8q
Audio
Transcript
Slides
8-K10-Q
Earnings call
FY23 · Q1
2023-04-07
ClearSign Technologies Corp Q1 FY2023 Earnings Call
Revenue
$894,000
Diluted EPS
$-0.40
Gross margin
11.9%
Rev · 8q
Audio
Transcript
Slides
8-K10-Q
Earnings call
FY22 · Q4
2022-12-31
ClearSign Technologies Corp Q4 FY2022 Earnings Call
Revenue
$50,000
▼ 7.4% YoY Diluted EPS
$-0.30
Gross margin
-14.0%
Rev · 8q
Audio
Transcript
Slides
8-K10-K
Earnings call
FY22 · Q3
2022-09-30
ClearSign Technologies Corp Q3 FY2022 Earnings Call
Revenue
$324,000
▲ 70.5% YoY Diluted EPS
$-0.30
Gross margin
38.0%
Rev · 8q
Audio
Transcript
Slides
8-K10-Q
Earnings call
FY22 · Q2
2022-09-06
ClearSign Technologies Corp Q2 FY2022 Earnings Call
Revenue
$
Diluted EPS
$-0.50
Rev · 8q
Audio
Transcript
Slides
8-K10-Q
Earnings call
FY22 · Q1
2022-04-08
ClearSign Technologies Corp Q1 FY2022 Earnings Call
Revenue
$
▼ 100% YoY Diluted EPS
$-0.50
Rev · 8q
Audio
Transcript
Slides
8-K10-Q
Earnings call
FY21 · Q3
2021-11-29
ClearSign Technologies Corp Q3 FY2021 Earnings Call
Revenue
$190,000
Diluted EPS
$-0.70
Gross margin
-46.3%
Rev · 8q
Audio
Transcript
Slides
8-K10-Q
Earnings call
FY21 · Q2
2021-09-10
ClearSign Technologies Corp Q2 FY2021 Earnings Call
Revenue
$
Diluted EPS
$-0.70
Rev · 8q
Audio
Transcript
Slides
8-K10-Q
Earnings call
FY21 · Q1
2021-06-21
ClearSign Technologies Corp Q1 FY2021 Earnings Call
Revenue
$363,000
Diluted EPS
$-0.70
Gross margin
38.0%
Rev · 8q
Audio
Transcript
Slides
8-K10-Q
Earnings call
FY20 · Q4
2021-03-25
ClearSign Technologies Corp Q4 FY2020 Earnings Call
Revenue
$
Rev · 8q
Audio
Transcript
Slides
8-K10-K
Earnings call
FY20 · Q3
2020-09-30
ClearSign Technologies Corp Q3 FY2020 Earnings Call
Revenue
$
Diluted EPS
$-0.60
Rev · 8q
Audio
Transcript
Slides
8-K10-Q
Earnings call
FY20 · Q2
2020-06-30
ClearSign Technologies Corp Q2 FY2020 Earnings Call
Revenue
$
Rev · 8q
Audio
Transcript
Slides
8-K10-Q
Earnings call
FY20 · Q1
2020-03-31
ClearSign Technologies Corp Q1 FY2020 Earnings Call
Revenue
$
Rev · 8q
Audio
Transcript
Slides
8-K10-Q
Earnings call
FY19 · Q4
2020-03-13
ClearSign Technologies Corp Q4 FY2019 Earnings Call
Revenue
$
Rev · 8q
Audio
Transcript
Slides
8-K10-K
Showing 1–24 of 24 earnings calls