Fuel Tech, Inc.
Fuel Tech, Inc. (Nasdaq: FTEK) develops and applies technologies for air pollution control, process optimization, water treatment and engineering services for utility and industrial customers worldwide. Its Air Pollution Control segment provides systems and services to reduce nitrogen oxide emissions and control… From the company’s description.
Over the twelve months to Sep 30, 2026, Fuel Tech, Inc. reported revenue of $28.49M, up 15.3% from a year earlier, and a net loss of $4.05M. Its operating margin was −17.9%, and operations used $4.98M in cash. In fiscal 2025, it reported revenue of $26.68M, up 6.1% from fiscal 2024, and a net loss of $2.32M.
Margins and return on equity change in ; everything else in percent. Fewer shares and less debt are shown plainly, not as bad news — it depends what you make of buybacks. Dotted labels explain each measure. is shown separately from the annual figures.
What Fuel Tech, Inc. does
In the company’s own words
Fuel Tech, Inc. (Nasdaq: FTEK) develops and applies technologies for air pollution control, process optimization, water treatment and engineering services for utility and industrial customers worldwide. Its Air Pollution Control segment provides systems and services to reduce nitrogen oxide emissions and control particulate matter, including SCR and SNCR systems, electrostatic precipitator products, flue gas conditioning, and urea-to-ammonia conversion. Its FUEL CHEM segment uses specialty chemical programs and proprietary TIFI® injection technology to address slagging, fouling, corrosion and emissions in boilers and other combustion units. Water treatment offerings include DGI® systems that infuse gases into water for water and wastewater treatment applications. The company also uses computational fluid dynamics and chemical kinetics modeling to design and optimize solutions. In 2025, revenue was $26.7 million, including $17.8 million from FUEL CHEM and $8.9 million from Air Pollution Control; the company had 77 employees at year-end. Its technologies have been installed on more than 2,000 combustion units worldwide for NOx reduction and more than 600 units for particulate control. Its website is www.ftek.com.
Company details
- Sector
- Industrials
- Industry (SIC)
- Industrial Machinery
- Headquarters
- WARRENVILLE, IL
- Fiscal year end
- December
- CIK
- 846913
- SIC
- 3564
Financial performance, year by year
Fiscal 2011–2025 · USDThe full income statement, balance sheet and cash flow for each of these years — every figure traceable to its filing — is on the Financials tab with a free account.
Who owns Fuel Tech, Inc. — and what changed
Funds as of 2026Q2 · superinvestors as of 2026-06-30
Largest fund holders · Fuel Tech, Inc.’s weight in each
Fund ownership is a floor, not a census — pensions, insurers and people holding shares directly are not visible here.
Fund ownership counts N-PORT filers only, so it is a floor rather than a census — pensions, insurers and direct holders are not visible here, and the remainder is not “held by individuals”.
Could not be determined for this company: bond issues.
Every fund and institutional holder, quarter by quarter, is on the Ownership tab with a free account.
Recent filings
All filings →Each filing opens into its own statements and disclosures here.
Put this business in context.
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