Perma-Fix Environmental Services (NASDAQ:PESI) (NASDAQ: PESI) is a U.S.-based environmental services company specializing in the treatment, recycling and disposal of hazardous, radioactive and mixed hazardous/radioactive waste streams. Founded in 1980 and headquartered in San Antonio, Texas, Perma-Fix operates a network of licensed treatment facilities and laboratories that serve government agencies, nuclear utilities, pharmaceutical manufacturers and other industrial clients. The company’s mission centers on providing turnkey solutions for complex waste management challenges, including decontamination, waste minimization, and final disposition of regulated materials.
The company’s core business activities include chemical treatment, thermal processing, solidification, stabilization, and volume reduction of waste. Perma-Fix deploys advanced technologies such as low-temperature thermal desorption, chemical oxidation, polymer encapsulation and supercompaction to convert hazardous constituents into stable, non‐leachable forms. Its facilities are licensed to manage Class A, B and C low‐level radioactive waste, mixed low‐level waste and other regulated by‐products. In addition to treatment and disposal, Perma-Fix provides on-site services including characterization, sampling, transportation coordination and site decontamination.
Historically, Perma-Fix has grown through strategic acquisitions and facility expansions, enabling it to broaden its geographic footprint across North America. Major site locations include Oak Ridge, Tennessee; Hamilton, Ontario; and Southern California. Over the past decade, the company has invested in research and development to enhance throughput and regulatory compliance, securing key contracts with the U.S. Department of Energy, the U.S. Department of Defense and major nuclear power generating companies.
Under the leadership of Charles S. Brown as President and Chief Executive Officer and supported by a senior management team with deep experience in environmental engineering, nuclear operations and regulatory affairs, Perma-Fix continues to pursue growth opportunities. With a focus on safety, environmental stewardship and customer service, the company aims to deliver innovative waste management solutions while maintaining the highest standards of regulatory compliance and community engagement.