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What Does Perma-Fix Environmental Services (PESI) Do? — Stock Outlook, Earnings, Market Cap, Related Stocks, and Headquarters at a Glance

Updated June 25, 2026 · First published April 16, 2026

Perma-Fix Environmental Services (PESI) is a specialist in the treatment of radioactive and mixed waste. Its earnings and stock-price trajectory are largely shaped by demand from the U.S. Department of Energy and its nuclear-facility customer base. Here are the key variables driving PESI's revenue and stock outlook.

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🏢 What kind of company is Perma-Fix Environmental Services?

Perma-Fix Environmental Services is a U.S.-listed environmental services company that provides treatment and environmental remediation services for radioactive waste and mixed hazardous waste. Headquartered in the United States, it focuses on the highly specialized field of nuclear waste processing.

The company's core business is the stabilization and treatment of radioactive and mixed waste, which most general waste operators cannot handle. Its main customers are the U.S. Department of Energy and commercial nuclear facilities, and it has secured a position in a niche market through strategically located treatment facilities and proprietary technologies.

💰 How does Perma-Fix Environmental Services make money?

Business SegmentRevenue MixDescription
Treatment SegmentCore businessStabilization and treatment of radioactive and mixed waste, operation of treatment facilities
Services SegmentKey growth driverEnvironmental remediation and field services for North American government and commercial clients

Perma-Fix's revenue is built on two pillars: the Treatment segment and the Services segment. The Treatment segment, which stabilizes and processes radioactive and mixed waste, is the core business; with rising treatment volumes of late, revenue and margins have shown improvement. The Services segment delivers environmental remediation and field services to government and commercial clients across North America and is pursuing expansion into international markets. The combination of these two segments reduces dependence on government contracts while sharing the common competitive edge of specialized treatment technology, forming a diversified structure.

📐 Perma-Fix Environmental Services' market cap and company scale

Market capitalization stands at $398.3M, with 307 people employees.

By market capitalization, Perma-Fix is a micro-cap specialty environmental services company. Compared with listed players in the broader environmental and waste-management space such as Clean Harbors (CLH) and Casella Waste Systems (CWST), it is smaller in scale, but it has carved out a differentiated position by focusing on the high-barrier niche of radioactive and mixed waste. Capital is allocated with priority to facility investment and the strengthening of technology capabilities, a characteristic of a company in its growth phase.

📈 Perma-Fix Environmental Services' outlook and stock-price flow

1-Year Price Performance
Analyst Consensus
1.0
Sell Hold Strong Buy
Target Price $30 +59.8% Current $19
52-Week Price Range
$19
Low $8 High $21
vs. low +134.04% vs. high -11.96%

In the near term, the U.S. Department of Energy's budget execution and procurement schedule, along with shifts in treatment volumes, are the main drivers of quarterly results. Over the medium to long term, the expansion of decommissioning and cleanup demand at aging nuclear facilities and the accumulated need to process radioactive waste could serve as structural growth drivers. However, with high dependence on government contracts, revenue volatility stemming from budget delays or policy shifts, along with regulatory changes, remain potential risk factors.

  • Expanding decommissioning and cleanup demand at nuclear facilities
  • High entry barriers underpinned by proprietary treatment technologies and facilities

⚔️ Perma-Fix Environmental Services' core strengths and risks

Perma-Fix's expertise in a high-barrier niche is a strength, but dependence on government contracts and the earnings volatility inherent in its small-scale operating structure remain risks.

💪 Core Strengths

Proprietary technology barriers to entry
Proprietary technology and licensed facilities required to treat radioactive and mixed waste make new entry difficult.
Customer relationships
Long-standing relationships with the U.S. Department of Energy and commercial nuclear facilities form a stable demand base.
Business diversification
The combination of the Treatment and Services segments lowers reliance on any single business line.

⚠️ Core Risks

Government dependence
Revenue is heavily tied to Department of Energy budgets and contract schedules, leading to significant quarterly volatility.
Small-scale operating structure
The company's overall small size means the success or failure of individual projects has an outsized impact on results.
Regulatory change
Treatment of radioactive waste is subject to strict regulation, exposing the company to policy shifts.

🔄 Perma-Fix Environmental Services' competitors and related (beneficiary) stocks

Within the broader environmental and waste-treatment space, Clean Harbors (CLH), which handles hazardous waste, and Casella Waste Systems (CWST), which operates in waste collection and disposal, serve as comparable companies in the same industry. Related tickers grouped with them include the large waste-management players Waste Management (WM) and Republic Services (RSG). These companies are larger than Perma-Fix in scale and scope of operations, but they serve as benchmarks for gauging the overall direction of the environmental services industry.

Competitors
TickerCompanyPriceChangeMarket CapP/EPBRROEDividend Yield
CLHCLHClean Harbors Inc$322.82+0.6%$17.0B39.15.815.56%-
CWSTCWSTCasella Waste Systems Inc$89.91-0.0%$5.7B1004.63.60.36%-
Related stocks (beneficiaries)
TickerCompanyPriceChangeMarket CapP/EPBRROEDividend Yield
WMWaste Management Inc$213.46-0.6%$85.3B30.28.629.83%1.77%
RSGRepublic Services Inc$222.74+0.8%$68.2B31.65.718.15%1.15%

✅ Investor checkpoints for Perma-Fix Environmental Services

When considering an investment in Perma-Fix Environmental Services, it is important to examine government procurement trends, utilization in the Treatment segment, and the regulatory environment in parallel. Given the volatility typical of a small specialty company, investors should look at business momentum and financial soundness in a balanced way.

CheckpointWhat to CheckCurrent Status
📈 Business momentumTreatment segment volumes and Services segment order trendsMonitoring recovery trend
💵 Financial soundnessMargin and profitability trend reviewMonitoring improvement trend
🏛️ Government procurementDepartment of Energy budget execution and contract scheduleWatch for volatility
⚔️ Competitive environmentMaintaining position within the specialty treatment marketPosition maintained

With high dependence on government contracts, revenue can swing sharply if budgets are delayed or policies change, and given the small-scale operating structure, delays in individual projects can have an outsized impact on quarterly results. Tightening regulation of radioactive-waste treatment may also translate into additional cost burdens.

Perma-Fix Environmental Services is a small environmental services company with specialized expertise in the high-barrier niche of radioactive and mixed waste. Structural treatment demand is a positive, but earnings volatility is high, so a scaled buying approach and a long-term perspective are recommended.

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