ClearSign
Business Services · Oklahoma, United States · 11-50 Employees
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Overview
Headquarters
8023 E 63rd Pl Ste 101, Tulsa, Oklahoma,...Phone Number
(918) 500-7312Website
www.clearsign.comRevenue
$5 MillionStock Symbol
CLIRIndustry
ZI Rank: 1
Signal Type
Mar
Apr
May
Jun
Jul
Aug
ZI Rank
1
1
1
1
1
1
About ClearSign
ClearSign Combustion Corporation designs and develops technologies to enhance emission and operational performance, energy efficiency, and overall cost-effectiveness of combustion systems the United States. Its Duplex and Electrodynamic Combustion Control platform technologies enhance the performance of combustion systems in a range of markets, including energy, commercial/industrial boiler, chemical, petrochemical, and power industries.Explore more
ClearSign Org Chart
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Number of Employees
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Company Profile Activity
Activity Insights
ClearSign is experiencing very low activity levels compared to other companies in the Business Services sector.
What does this means?
ClearSign is drawing exceptional interest within the Business Services industry, suggesting notable developments or strong market momentum, learn more about ClearSign.
ClearSign financials insights
Gather financial insights about ClearSign, including details on funding rounds, investors, total funding, and acquisitions, to gain a comprehensive understanding of their financial strategy.
2012
Stock Offering
$12M
2020
Debt
$150K
2026
Stock/Share Issuance
$1.8M
ClearSign Tech Stack
A closer look at the technologies used by ClearSign
Most Recent Scoops
Project
ClearSign has completed the replacement of the burner element in an existing competitor-supplied Flare at a California client site that was not performing properly, with the system successfully started up and source testing conducted, yielding very positive on-site results ahead of a pending formal test report.
Project
ClearSign has reported that its 26-burner process burner project for a petrochemical company on the Gulf Coast is on track, with site-specific personnel training and last-minute spare parts requirements currently being addressed ahead of an expected October installation and startup. The startup is being closely monitored by prospects and customers across the industry.
Product Development, Chemical Engineering, Manufacturing Operations, Oil & Gas
Project
ClearSign has advanced the next phase of a 32-burner process burner project for a California refinery, with the flat flame burner design having completed computer modeling, engineering, and client approval, and the unit currently in manufacturing ahead of scheduled installation in the test furnace within the coming weeks. This is the first flat flame variant of ClearSign's combustion technology, and following successful testing and customer witness, the project will proceed to the manufacturing phase for the first heater retrofit at the California refinery.
Proof of Concept (POC), Engineering, Product Development, Chemical Engineering, Manufacturing Operations, Oil & Gas
Earnings
ClearSign has reported net cash used in operations of approximately $1.2 million for Q2 2026, compared to approximately $511,000 for the same period in 2025, with the year-over-year change predominantly driven by the timing of customer cash collections. As of June 30, 2026, ClearSign held approximately $9.9 million in cash and cash equivalents.
Earnings, Finance, Financial Operations
Funding
Funding
ClearSign News & Media
ClearSign Board of Directors Appoints Former ExxonMobil Global Technology Leader Larry Saddler
TULSA, OK / ACCESS Newswire / 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, ...ClearSign Technologies Corporation (CLIR) Q1 2026 Earnings Call Transcript
ClearSign Technologies Corporation (CLIR) Q1 2026 Earnings Call May 20, 2026 5:00 PM EDTCompany ParticipantsColin James Deller - CEO & DirectorBrent...ClearSign Technologies Corp (CLIR) Q4 2025 Earnings Call Highlights: Record Revenue Surge and ...
ClearSign Technologies Corp (CLIR) reports a 44% annual revenue increase, driven by strategic partnerships and innovative burner technology, despite challenges in profit margins and cash flow.ClearSign Technologies Corporation (CLIR) Q4 2025 Earnings Call Transcript
ClearSign Technologies Corporation (CLIR) Q4 2025 Earnings Call April 9, 2026 5:00 PM EDTCompany ParticipantsColin James Deller - CEO & DirectorBrent...
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ClearSign Combustion Corporation designs and develops technologies to enhance emission and operational performance, energy efficiency, and overall cost-effectiveness of combustion systems the United States. Its Duplex and Electrodynamic Combustion Control platform technologies enhance the performance of combustion systems in a range of markets, inc... Read More
