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ClearSign Technologies
ClearSign Technologies, led by CEO Colin James Deller, engineers industrial combustion systems to reduce NOx emissions for refineries and boiler operators.
ClearSign Technologies
ClearSign Technologies was founded in 2008 with a focus on re-engineering industrial combustion to slash nitrogen oxide (NOx) emissions without the capital burden of traditional catalytic systems. The company, publicly listed on Nasdaq, develops burner and sensor technologies designed to integrate into existing process heaters, boilers, and refinery equipment. Its Core platform is positioned as a retrofit-compatible alternative to selective catalytic reduction (SCR), a market historically dominated by large-scale environmental engineering firms. The firm's go-to-market strategy pairs direct hardware sales with licensing agreements, concentrating on petrochemical refining, power generation, and commercial steam operations. Deployment is structured around collaborative field trials with regional boiler operators before scaled orders — a low-upfront-cost model aimed at regulated smog-prone basins. Named operational deployments have included burner retrofits for California-based enhanced oil recovery steam generators, a performance validated in joint testing with Aera Energy. Geographic focus spans North American non-attainment zones, notably the San Joaquin Valley and the Texas Gulf Coast, where NOx limits have tightened under EPA oversight. Research and development efforts remain concentrated alongside applied engineering partners in the Seattle area, while the corporate headquarters and commercial functions anchor in Tulsa. In May 2024, ClearSign received a multi-unit process burner order from a Texas-based refiner for a furnace compliance project (per the firm's public disclosures, 2024). The company's adjacent intellectual property portfolio includes a compact 'Duplex' plug-and-play burner architecture designed for low excess-air operation. ClearSign's structural differentiator lies in owning the combustion physics rather than the post-combustion clean-up. By controlling flame chemistry inside the burner tile — eliminating the need for ammonia or urea injection — the firm's technology sidesteps the reagent supply chain and hazardous-material handling requirements that define the incumbent SCR market. This turns the emissions-control cost from a permanent opex layer into a capex event amortized inside the burner maintenance cycle.
General information
Firm type
Asset Manager
Year founded
2008
AUM
Undisclosed
Location
Region
North America
Country
United States
City
Tulsa
Corporate office
Tulsa, OK, United States
Principals
Colin James Deller
Chief Executive Officer
Sector focus
Frequently asked questions
Who runs investment decisions and corporate strategy at ClearSign Technologies?
Chief Executive Officer Colin James Deller leads executive decision-making for the publicly listed firm. The board of directors provides governance oversight, with Deller responsible for capital allocation strategy, including deployment into ongoing patent-protected research and development for the Core and Duplex burner platforms.
How does ClearSign source its commercial pipeline?
ClearSign generates commercial orders through a combination of direct sales to refinery operators, field trial partnerships with regional boiler operators in EPA non-attainment zones, and technology licensing arrangements. The firm has historically used collaborative field validation — such as its joint testing with Aera Energy in California — to derisk the procurement decision for prospective customers before they place full-scale retrofit orders.
What is ClearSign's intellectual property posture?
The company owns a portfolio of patents governing in-flame NOx suppression, including its Duplex plug-and-play burner architecture. By controlling combustion chemistry at the burner tile, ClearSign circumvents the ammonia or urea injection systems required by selective catalytic reduction competitors, turning a recurring reagent cost into an embedded capital asset.
Does ClearSign participate in traditional fund-style investments or direct technology deployment only?
ClearSign is a publicly traded operating company, not an investment fund. It does not manage third-party capital or make LP commitments. All deployment consists of direct sales or licensing of its combustion hardware — typically process burners and associated sensors — to industrial buyers within refining, petrochemical, and steam-generation sectors.
Which regulatory environments drive demand for ClearSign's technology?
Demand is tightly correlated with state and federal NOx attainment status. The firm's active commercial geographies include California's San Joaquin Valley and the Texas Gulf Coast, both of which face tightened EPA ozone standards that push operators beyond the limits of conventional burner design, accelerating retrofit cycles.
Profile maintained by Altss using OSINT (open-source intelligence), regulatory filings, licensed data partners, and verified direct submissions. Read the methodology. Last updated: . Continuous refresh with full update cycles at least every 30 days.
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