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About Mark Duff

Mark Duff is recorded as Board Member at Perma Fix Environmental Services Inc (PESI) since April 20, 2023. Perma Fix Environmental Services Inc reported in an 8-K filed April 26, 2023 that Mark Duff was appointed Director, effective April 20, 2023. The proxy statement of Perma Fix Environmental Services Inc reports total compensation of $453,081 for Mark Duff in fiscal 2025, including a base salary of $417,155. Disclosed compensation is on record for 8 fiscal years. Mark Duff has spoken on 10 earnings calls across 1 company, most recently for Perma Fix Environmental Services Inc on August 11, 2026. Perma Fix Environmental Services Inc is classified in the Waste Management industry within the Industrials sector. Other leadership on record at Perma Fix Environmental Services Inc includes Mr. Mark Duff (CEO), Mr. Ben Naccarato (CFO), Mr. Troy Eshleman (COO) and 7 others.

“Upon the Company's Amended and Restated By-laws being amended to increase the maximum number of board members from eight to nine members, the Board elected Mark Duff, the Company's President and CEO, to fill the newly created directorship, effective April 20, 2023.”
Perma Fix Environmental Services Inc Form 8-K, filed April 26, 2023 · Read the filing

Mark Duff on recent calls

“I want to start by being direct about the quarter. Our second quarter financial results were below expectations. Revenue was $12.9 million, and we reported a net loss of $6.2 million.”
CEO, Second Quarter 2026 Conference Call ·
“All right, thanks, David, and good morning, everyone, and thank you for joining us today. 2025 was an important year for Permafix as we focused on strengthening our operational foundation and positioning the company for the next phase of growth tied to the Department of Energy's Hanford cleanup mission.”
CEO, Fourth Quarter 2025 Conference Call ·
“As discussed in our year-end conference call, our financial performance in the first quarter of 2024 was impacted by several temporary headwinds, which had a significant impact on the first quarter and, to a lesser extent, the second quarter.”
CEO, Perma Fix Environmental Services Inc Q1 FY2024 Earnings Call ·
“Obviously, we're disappointed with our financial performance in 2021 with revenues down about 30% over 2020. However, we were able to secure a positive earnings per share of $0.07.”
CEO, Perma Fix Environmental Services Inc Q4 FY2021 Earnings Call ·
“During the first half of 2021, we continued to experience the impact of the COVID-19 pandemic as the federal government has been much slower than the commercial sector to resume normal operations.”
CEO, Perma Fix Environmental Services Inc Q2 FY2021 Earnings Call ·

Affiliation history

Company network

Leadership on record at Perma Fix Environmental Services Inc

Executive compensation

Compensation components disclosed in company proxy statements. Amounts are nominal USD; total is the company-reported figure.

Fiscal year Company Salary Total
2025 Perma Fix Environmental Services Inc (PESI) $417,155 $453,081
2024 Perma Fix Environmental Services Inc (PESI) $417,155 $456,461
2023 Perma Fix Environmental Services Inc (PESI) $382,367 $748,095
2022 Perma Fix Environmental Services Inc (PESI) $374,870 $416,140
2021 Perma Fix Environmental Services Inc (PESI) $350,341 $562,980
2020 Perma Fix Environmental Services Inc (PESI) $344,400 $508,340
2019 Perma Fix Environmental Services Inc (PESI) $287,000 $462,943
2018 Perma Fix Environmental Services Inc (PESI) $275,125 $304,680

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