Company information
- Ticker
- PESI
- Country
- United States
- Sector
- Industrials
- Industry
- Waste Management
PERMA-FIX ENVIRONMENTAL SVCS Business Summary
Perma-Fix Environmental Services (PESI) operates a specialized business model focused on the treatment and management of nuclear, low-level radioactive, and mixed hazardous waste. The company generates revenue through two primary segments: the Treatment Segment, which utilizes a network of proprietary facilities to process complex waste streams for disposal, and the Services Segment, which provides on-site environmental remediation, decontamination, and decommissioning for government and commercial clients. Revenue is predominantly derived from long-term federal contracts with the U.S. Department of Energy (DOE) and Department of Defense (DOD), as well as commercial nuclear utilities and international entities. As of early 2026, the company is scaling its high-margin Hanford DFLAW effluent treatment operations and its proprietary PFAS destruction technology. PESI competes directly with larger environmental firms such as EnergySolutions, Clean Harbors, and Montrose Environmental Group, maintaining a competitive moat as a niche provider capable of handling the most hazardous and regulated radioactive materials that standard waste management firms cannot process. Leadership is anchored by founder Dr. Louis Centofanti, who serves as Executive Vice President of Strategic Initiatives and has guided the firm since its 1991 inception. The executive team is led by President and CEO Mark Duff, a 40-year industry veteran with extensive experience in DOE and DOD environmental markets, and Executive Vice President and CFO Ben Naccarato, who has overseen the company’s financial strategy since 2009. In early 2025, the company further strengthened its operational leadership by appointing Troy Eshleman as Chief Operating Officer, bringing over three decades of expertise from EnergySolutions to manage large-scale decommissioning projects. The Board of Directors is chaired by Larry Shelton and includes notable members such as Thomas Bostick, a former Lieutenant General and Chief of Engineers of the U.S. Army Corps of Engineers, providing the company with significant strategic depth in government procurement and federal infrastructure projects.