Company research
ClearSign Technologies Corp
CIK 1434524Updated Oct 6, 2026
SecurityCLIR · NASDAQ · equity
Name history
CLEARSIGN COMBUSTION CORP · through Oct 31, 2019
CLIR price & chart
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NASDAQ:CLIR on TradingView ↗About the company
ClearSign Technologies Corporation designs and develops products and technologies for the purpose of decarbonization and improving key performance characteristics of industrial and commercial systems, including operational performance, energy efficiency, emission reduction, safety, the use of hydrogen as a fuel and overall cost-effectiveness. Our patented technologies, embedded in established OEM products as ClearSign Core ™ and ClearSign Eye ™ and other sensing configurations, enhance the performance of combustion systems and fuel safety systems in a broad range of markets, including the energy (upstream oil production and down-stream refining), commercial/industrial boiler, chemical, petrochemical, transport and power industries. For more information, please visit www.clearsign.com.
In the news
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Recent filings
4 filing
Regulation FD Disclosure
Items 7.01, 9.01
Results of Operations and Financial Condition · Regulation FD Disclosure
Items 2.02, 7.01, 9.01
10-Q filing
Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements · Regulation FD Disclosure
Items 5.02, 7.01, 9.01
Show 5 more recent filings
Financials
FY 2025 · USDSource
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balance sheet · annual statements
| Line item | Q3 2025 | Q3 2024 | Q2 2026 | Q2 2025 | Q2 2024 | Q1 2026 | Q1 2025 | Q1 2024 | FY 2025 | FY 2024 | FY 2023 | FY 2022 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ASSETS | ||||||||||||
| AssetsUSD | 12,747,000Source | 17,094,000Source | 12,190,000Source | 14,231,000Source | 17,828,000Source | 9,836,000Source | 14,534,000Source | 6,620,000Source | 12,181,000Source | 15,916,000Source | 7,620,000Source | 10,925,000Source |
| Property, Plant and Equipment, NetUSD | 223,000Source | 245,000Source | 141,000Source | 251,000Source | 271,000Source | 166,000Source | 215,000Source | 247,000Source | 195,000Source | 238,000Source | 275,000Source | 384,000Source |
| Intangible Assets, Net (Excluding Goodwill)USD | 778,000Source | 855,000Source | 737,000Source | 798,000Source | 855,000Source | 764,000Source | 824,000Source | 831,000Source | 760,000Source | 830,000Source | 836,000Source | 798,000Source |
| Current assets: | ||||||||||||
| Cash and Cash Equivalents, at Carrying ValueUSD | 10,488,000Source | 14,486,000Source | 9,889,000Source | 12,339,000Source | 15,974,000Source | 7,736,000Source | 12,866,000Source | 4,624,000Source | 9,178,000Source | 14,035,000Source | 5,684,000Source | 6,451,000Source |
| Accounts Receivable, after Allowance for Credit Loss, CurrentUSD | 324,000Source | 749,000Source | 234,000Source | 25,000Source | 135,000Source | 171,000Source | 135,000Source | 569,000Source | 1,360,000Source | 165,000Source | 287,000Source | 79,000Source |
| Assets, CurrentUSD | 11,746,000Source | 15,994,000Source | 11,185,000Source | 13,182,000Source | 16,702,000Source | 8,779,000Source | 13,495,000Source | 5,542,000Source | 11,226,000Source | 14,848,000Source | 6,509,000Source | 9,733,000Source |
| Prepaid Expense and Other Assets, CurrentUSD | 420,000Source | 610,000Source | 591,000Source | 550,000Source | 588,000Source | 431,000Source | 344,000Source | 349,000Source | 359,000Source | 454,000Source | 350,000Source | 577,000Source |
| Operating Lease, Right-of-Use AssetUSD | 180,000Source | 204,000Source | 112,000Source | 202,000Source | 224,000Source | 135,000Source | 159,000Source | 214,000Source | 157,000Source | 181,000Source | 235,000Source | 322,000Source |
| Other Assets, NoncurrentUSD | — | — | — | — | — | — | — | — | — | — | — | 10,000Source |
| LIABILITIES AND EQUITY | ||||||||||||
| LiabilitiesUSD | 3,669,000Source | 2,271,000Source | 2,356,000Source | 3,817,000Source | 1,939,000Source | 2,212,000Source | 2,494,000Source | 2,159,000Source | 2,651,000Source | 2,152,000Source | 2,428,000Source | 1,373,000Source |
| Stockholders’ equity: | ||||||||||||
| Common Stock, Value, IssuedUSD | 5,000Source | 5,000Source | 1,000Source | 5,000Source | 5,000Source | 1,000Source | 5,000Source | 4,000Source | 1,000Source | 5,000Source | 4,000Source | 4,000Source |
| Additional Paid in CapitalUSD | 113,294,000Source | 112,686,000Source | 117,859,000Source | 113,202,000Source | 112,602,000Source | 114,343,000Source | 113,148,000Source | 99,302,000Source | 114,061,000Source | 112,796,000Source | 98,922,000Source | 98,079,000Source |
| Retained Earnings (Accumulated Deficit)USD | -104,201,000Source | -97,852,000Source | -108,009,000Source | -102,772,000Source | -96,697,000Source | -106,702,000Source | -101,092,000Source | -94,825,000Source | -104,512,000Source | -99,016,000Source | -93,717,000Source | -88,523,000Source |
| Liabilities and EquityUSD | 12,747,000Source | 17,094,000Source | 12,190,000Source | 14,231,000Source | 17,828,000Source | 9,836,000Source | 14,534,000Source | 6,620,000Source | 12,181,000Source | 15,916,000Source | 7,620,000Source | 10,925,000Source |
| Current liabilities: | ||||||||||||
| Liabilities, CurrentUSD | 3,578,000Source | 2,143,000Source | 2,339,000Source | 3,702,000Source | 1,796,000Source | 2,170,000Source | 2,396,000Source | 2,002,000Source | 2,584,000Source | 2,039,000Source | 2,256,000Source | 1,147,000Source |
| Operating Lease, Liability, CurrentUSD | 94,000Source | 82,000Source | 100,000Source | 93,000Source | 88,000Source | 98,000Source | 68,000Source | 66,000Source | 96,000Source | 75,000Source | 71,000Source | 133,000Source |
| Accounts Payable, CurrentUSD | 1,983,000Source | 1,486,000Source | 1,437,000Source | 1,556,000Source | 453,000Source | 1,752,000Source | 1,167,000Source | 617,000Source | 1,644,000Source | 1,220,000Source | 366,000Source | 296,000Source |
| Operating Lease, Liability, NoncurrentUSD | 91,000Source | 128,000Source | 17,000Source | 115,000Source | 143,000Source | 42,000Source | 98,000Source | 157,000Source | 67,000Source | 113,000Source | 172,000Source | 226,000Source |
| Additional Financial Items | ||||||||||||
| Accrued Liabilities, CurrentUSD | 353,000Source | 401,000Source | 387,000Source | 378,000Source | 430,000Source | 257,000Source | 274,000Source | 281,000Source | 564,000Source | 671,000Source | 703,000Source | 471,000Source |
| Short-term InvestmentsUSD | — | — | — | — | — | — | — | 0Source | — | — | 0Source | 2,606,000Source |
cash flow · annual statements
| Line item | Q4 2025 | Q4 2024 | Q3 2025 | Q3 2024 | Q2 2026 | Q2 2025 | Q1 2026 | Q1 2025 | FY 2025 | FY 2024 | FY 2023 | FY 2022 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cash flows from operating activities: | ||||||||||||
| Net Income (Loss), Including Portion Attributable to Noncontrolling InterestUSD | — | — | -1,429,000Source | -1,155,000Source | -1,307,000Source | -1,680,000Source | -2,190,000Source | -2,076,000Source | -5,496,000Source | -5,299,000Source | -5,194,000Source | -5,758,000Source |
| Adjustments to reconcile net income to net cash provided by operating activities: | ||||||||||||
| Depreciation, Depletion and AmortizationUSD | — | — | — | — | — | — | — | — | — | — | — | 161,000Source |
| Share-based Payment Arrangement, Noncash ExpenseUSD | — | — | — | — | — | — | 76,000Source | 45,000Source | 893,000Source | 528,000Source | 614,000Source | 373,000Source |
| Changes in operating assets and liabilities: | ||||||||||||
| Increase (Decrease) in Accounts ReceivableUSD | — | — | — | — | — | — | -1,189,000Source | -30,000Source | 1,195,000Source | -122,000Source | 208,000Source | 46,000Source |
| Increase (Decrease) in Accounts PayableUSD | — | — | — | — | — | — | 117,000Source | -33,000Source | 378,000Source | 816,000Source | -57,000Source | -125,000Source |
| Net Cash Provided by (Used in) Operating ActivitiesUSD | — | — | — | — | — | — | -1,348,000Source | -1,111,000Source | -4,736,000Source | -4,373,000Source | -3,233,000Source | -4,992,000Source |
| Cash flows from investing activities: | ||||||||||||
| Net Cash Provided by (Used in) Investing ActivitiesUSD | — | — | — | — | — | — | -64,000Source | -41,000Source | -101,000Source | -218,000Source | 2,490,000Source | -2,686,000Source |
| Payments to Acquire Property, Plant, and EquipmentUSD | — | — | — | — | — | — | — | 4,000Source | 4,000Source | 39,000Source | — | 10,000Source |
| Cash flows from financing activities: | ||||||||||||
| Payment, Tax Withholding, Share-based Payment ArrangementUSD | — | — | — | — | — | — | 32,000Source | 41,000Source | 45,000Source | 46,000Source | 15,000Source | — |
| Net Cash Provided by (Used in) Financing ActivitiesUSD | — | — | — | — | — | — | -32,000Source | -17,000Source | -21,000Source | 12,946,000Source | -15,000Source | 6,539,000Source |
| Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate EffectUSD | — | — | — | — | — | — | -1,442,000Source | -1,169,000Source | -4,857,000Source | 8,351,000Source | -767,000Source | -1,156,000Source |
| Cash, Cash Equivalents, Restricted Cash and Restricted Cash EquivalentsUSD | — | — | 10,488,000Source | 14,486,000Source | 9,889,000Source | 12,339,000Source | 7,736,000Source | 12,866,000Source | 9,178,000Source | 14,035,000Source | 5,684,000Source | 6,451,000Source |
| Effect of Exchange Rate on Cash, Cash Equivalents, Restricted Cash and Restricted Cash EquivalentsUSD | — | — | — | — | — | — | 2,000Source | — | 1,000Source | -4,000Source | -9,000Source | -17,000Source |
| Additional Financial Items | ||||||||||||
| Share-based Payment Arrangement, ExpenseUSD | — | — | — | 27,000Source | — | — | — | — | — | — | — | 118,000Source |
| Amortization of Intangible AssetsUSD | — | — | 41,000Source | 43,000Source | 35,000Source | 43,000Source | 37,000Source | 42,000Source | 164,000Source | 165,000Source | 147,000Source | — |
| DepreciationUSD | — | — | 7,000Source | 4,000Source | 3,000Source | 7,000Source | 6,000Source | 5,000Source | 25,000Source | 21,000Source | 152,000Source | 24,000Source |
| Gain (Loss) on Disposition of AssetsUSD | — | — | — | — | — | — | — | — | — | — | 5,000Source | 38,000Source |
| Gain (Loss) on Disposition of Property Plant EquipmentUSD | — | — | — | — | — | — | — | — | — | — | 5,000Source | — |
| Gain (Loss) on Termination of LeaseUSD | — | — | — | — | — | — | — | — | — | 3,000Source | 14,000Source | — |
| General and Administrative ExpenseUSD | — | — | 1,808,000Source | 1,655,000Source | 1,278,000Source | 1,646,000Source | 1,637,000Source | 2,006,000Source | 6,673,000Source | 6,135,000Source | 6,059,000Source | 5,728,000Source |
| Impairment of Intangible Assets (Excluding Goodwill)USD | — | — | — | — | — | — | — | — | — | — | 14,000Source | 19,000Source |
| Impairment of Intangible Assets, Finite-livedUSD | — | — | — | — | 16,000Source | 0Source | 23,000Source | 0Source | 3,000Source | 20,000Source | 14,000Source | — |
| Income Tax Expense (Benefit)USD | — | — | — | — | — | — | — | — | 0Source | 0Source | 0Source | 0Source |
| Marketable Securities, Realized Gain (Loss), Excluding Other-than-temporary Impairment LossUSD | — | — | — | — | — | — | — | — | — | — | 79,000Source | 45,000Source |
| Net Income (Loss) Attributable to ParentUSD | — | — | -1,429,000Source | -1,155,000Source | -1,307,000Source | -1,680,000Source | -2,190,000Source | -2,076,000Source | -5,496,000Source | -5,299,000Source | -5,194,000Source | -5,758,000Source |
| Nonoperating Income (Expense)USD | — | — | 321,000Source | 278,000Source | 191,000Source | 158,000Source | 89,000Source | 181,000Source | 1,175,000Source | 1,189,000Source | 787,000Source | 359,000Source |
| Operating ExpensesUSD | — | — | 2,118,000Source | 1,984,000Source | 1,726,000Source | 1,893,000Source | 1,886,000Source | 2,453,000Source | 8,095,000Source | 7,606,000Source | 6,798,000Source | 6,233,000Source |
| Other Nonoperating Income (Expense)USD | — | — | — | 1,000Source | -1,000Source | — | -1,000Source | — | — | 9,000Source | 203,000Source | 6,000Source |
| Proceeds from Issuance of Common StockUSD | — | — | — | — | — | — | — | — | 0Source | 12,967,000Source | 0Source | 6,539,000Source |
| Revenue from Contract with Customer, Including Assessed TaxUSD | — | — | 1,029,000Source | 1,859,000Source | 560,000Source | 133,000Source | 191,000Source | 401,000Source | 5,234,000Source | 3,596,000Source | 2,403,000Source | 374,000Source |
income statement · annual statements
| Line item | Q4 2025 | Q4 2024 | Q3 2025 | Q3 2024 | Q2 2026 | Q2 2025 | Q1 2026 | Q1 2025 | FY 2025 | FY 2024 | FY 2023 | FY 2022 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cost of RevenueUSD | — | — | 661,000Source | 1,308,000Source | 332,000Source | 78,000Source | 584,000Source | 205,000Source | 3,810,000Source | 2,478,000Source | 1,586,000Source | 258,000Source |
| Operating Income (Loss)USD | — | — | -1,750,000Source | -1,433,000Source | -1,498,000Source | -1,838,000Source | -2,279,000Source | -2,257,000Source | -6,671,000Source | -6,488,000Source | -5,981,000Source | -6,117,000Source |
| Other Nonoperating Income (Expense)USD | — | — | — | 1,000Source | -1,000Source | — | -1,000Source | — | — | 9,000Source | 203,000Source | 6,000Source |
| Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling InterestUSD | — | — | — | — | — | — | — | — | -5,453,000Source | -5,299,000Source | -5,194,000Source | -5,758,000Source |
| Income Tax Expense (Benefit)USD | — | — | — | — | — | — | — | — | 0Source | 0Source | 0Source | 0Source |
| Net Income (Loss) Attributable to ParentUSD | — | — | -1,429,000Source | -1,155,000Source | -1,307,000Source | -1,680,000Source | -2,190,000Source | -2,076,000Source | -5,496,000Source | -5,299,000Source | -5,194,000Source | -5,758,000Source |
| Earnings Per Share, BasicUSD per share | — | — | — | — | -0.22Source | -0.3Source | -0.39Source | -0.38Source | -0.99Source | -0.11Source | -0.13Source | -0.16Source |
| Earnings Per Share, DilutedUSD per share | — | — | — | — | -0.22Source | -0.3Source | -0.39Source | -0.38Source | -0.99Source | -0.11Source | -0.13Source | -0.16Source |
| Total Revenue | — | — | — | — | — | — | — | — | — | — | — | — |
| Weighted Average Number of Shares Outstanding, Basicshares | — | — | — | — | 5,931,470Source | 5,521,797Source | 5,627,127Source | 5,499,598Source | 5,551,194Source | 48,935,988Source | 38,500,933Source | 35,338,712Source |
| Weighted Average Number of Shares Outstanding, Dilutedshares | — | — | — | — | 5,931,470Source | 5,521,797Source | 5,627,127Source | 5,499,598Source | 5,551,194Source | 48,935,988Source | 38,500,933Source | 35,338,712Source |
| Additional Financial Items | ||||||||||||
| Amortization of Intangible AssetsUSD | — | — | 41,000Source | 43,000Source | 35,000Source | 43,000Source | 37,000Source | 42,000Source | 164,000Source | 165,000Source | 147,000Source | — |
| General and Administrative ExpenseUSD | — | — | 1,808,000Source | 1,655,000Source | 1,278,000Source | 1,646,000Source | 1,637,000Source | 2,006,000Source | 6,673,000Source | 6,135,000Source | 6,059,000Source | 5,728,000Source |
| Gross ProfitUSD | — | — | 368,000Source | 551,000Source | 228,000Source | 55,000Source | -393,000Source | 196,000Source | 1,424,000Source | 1,118,000Source | 817,000Source | 116,000Source |
| Income (Loss) from Continuing Operations before Income Taxes, DomesticUSD | — | — | — | — | — | — | — | — | -5,399,000Source | -5,072,000Source | -5,145,000Source | -5,649,000Source |
| Interest Income (Expense), NetUSD | — | — | — | — | — | — | — | — | — | — | 324,000Source | 83,000Source |
| Interest Income (Expense), Nonoperating, NetUSD | — | — | 105,000Source | 146,000Source | 61,000Source | 115,000Source | 62,000Source | 133,000Source | 439,000Source | 516,000Source | — | — |
| Marketable Securities, Realized Gain (Loss), Excluding Other-than-temporary Impairment LossUSD | — | — | — | — | — | — | — | — | — | — | 79,000Source | 45,000Source |
| Nonoperating Income (Expense)USD | — | — | 321,000Source | 278,000Source | 191,000Source | 158,000Source | 89,000Source | 181,000Source | 1,175,000Source | 1,189,000Source | 787,000Source | 359,000Source |
| Operating ExpensesUSD | — | — | 2,118,000Source | 1,984,000Source | 1,726,000Source | 1,893,000Source | 1,886,000Source | 2,453,000Source | 8,095,000Source | 7,606,000Source | 6,798,000Source | 6,233,000Source |
| Research and Development ExpenseUSD | — | — | 310,000Source | 329,000Source | 448,000Source | 247,000Source | 249,000Source | 447,000Source | 1,422,000Source | 1,471,000Source | 739,000Source | 505,000Source |
| Revenue from Contract with Customer, Including Assessed TaxUSD | — | — | 1,029,000Source | 1,859,000Source | 560,000Source | 133,000Source | 191,000Source | 401,000Source | 5,234,000Source | 3,596,000Source | 2,403,000Source | 374,000Source |
Offerings
Registration 333-289549
- Offering amount
- $5.5
- Ticker
- CLIR
Filing attachments
tm2623643d1_ex99-1.htm · 8-K · 2026-08-20
EX-99.1 2 tm2623643d1_ex99-1.htm EXHIBIT 99.1 Exhibit 99.1 ClearSign Technologies Corporation Provides Second Quarter 2026 Update TULSA, Okla., August 19, 2026 - ClearSign Technologies Corporation (Nasdaq: CLIR) (“ClearSign” or the “Company”), a leader in advanced combustion and sensing technologies that help industrial operators dramatically reduce emissions, increase efficiency and support the use of cleaner fuels including hydrogen, today provides an update on operations for the second …
Read attachment ↗tm2623643d1_ex99-2.htm · 8-K · 2026-08-20
EX-99.2 3 tm2623643d1_ex99-2.htm EXHIBIT 99.2 Exhibit 99.2 Transcript of ClearSign Technologies Corporation 2Q 2026 Earnings Conference Call August 19, 2026 Participants Matthew Selinger - Investor Relations, Firm IR Group Jim Deller - Chief Executive Officer, ClearSign Technologies Corporation Brent Hinds - Chief Financial Officer, ClearSign Technologies Corporation Analysts Sameer Joshi - H.C. Wainwright & Co. Peter Gastreich - Water Tower Research Presentation Operator Greet…
Read attachment ↗tm2622777d1_ex99-1.htm · 8-K · 2026-08-11
EX-99.1 3 tm2622777d1_ex99-1.htm EXHIBIT 99.1 Exhibit 99.1 ClearSign Board of Directors Appoints Former ExxonMobil Global Technology Leader Larry Saddler TULSA, Okla., August 11, 2026 - ClearSign Technologies Corporation (Nasdaq: CLIR) (“ClearSign” or the “Company”), a leader in advanced combustion and sensing technologies that help industrial operators dramatically reduce emissions, increase efficiency and support the use of cleaner fuels including hydrogen, today announces that industry…
Read attachment ↗tm2621046d1_ex99-1.htm · 8-K · 2026-07-23
EX-99.1 4 tm2621046d1_ex99-1.htm EXHIBIT 99.1 Exhibit 99.1 ClearSign Announces Private Placement of $1,770,000 At the Market Transaction with Existing Stockholder TULSA, Okla., July 23, 2026 - ClearSign Technologies Corporation (Nasdaq: CLIR) (“ClearSign” or the “Company”), a leader in advanced combustion and sensing technologies that help industrial operators dramatically reduce emissions, increase efficiency and support the use of cleaner fuels including hydrogen, today announces the co…
Read attachment ↗tm2615953d1_ex99-1.htm · 8-K · 2026-06-01
EX-99.1 4 tm2615953d1_ex99-1.htm EXHIBIT 99.1 Exhibit 99.1 ClearSign Technologies Corporation Announces Proposed Public Offering of Common Stock Tulsa, OK. May 28, 2026 - ClearSign Technologies Corporation (Nasdaq: CLIR) (“ClearSign” or the “Company”), a leader in advanced combustion and sensing technologies that help industrial operators dramatically reduce emissions, increase efficiency and support the use of cleaner fuels including hydrogen, today announces that it is proposing to sell …
Read attachment ↗tm2615953d1_ex99-2.htm · 8-K · 2026-06-01
EX-99.2 5 tm2615953d1_ex99-2.htm EXHIBIT 99.2 Exhibit 99.2 ClearSign Technologies Corporation Prices Underwritten Public Offering of Common Stock Tulsa, OK. May 29, 2026 - ClearSign Technologies Corporation (Nasdaq: CLIR) (“ClearSign” or the “Company”), a leader in advanced combustion and sensing technologies that help industrial operators dramatically reduce emissions, increase efficiency and support the use of cleaner fuels including hydrogen, today announces the pricing of an underwritt…
Read attachment ↗