Top 10 Companies in the Selenium‑75 Market (2026): Market Leaders Driving Global NDT and Medical Innovations

MARKET INSIGHTS

The Global Selenium‑75 market was valued at USD 18.5 million in 2025. The market is projected to grow from USD 19.8 million in 2026 to USD 28.3 million by 2034, exhibiting a compound annual growth rate (CAGR) of 5.2% during the forecast period.

Selenium‑75 Market – View in Detailed Research Report

Selenium‑75 is a radioactive isotope of selenium with a half‑life of approximately 119.8 days. It is a crucial material in the industrial sector, primarily utilized in gamma radiography as a non‑destructive testing (NDT) source for inspecting metal components and welds, particularly in the oil & gas, aerospace, and construction industries. Its application is favored because it provides a portable and effective means of detecting flaws or defects in critical infrastructure.

The market’s steady growth is driven by sustained demand from the oil & gas industry for pipeline integrity management and the expansion of infrastructure development projects globally. However, the market faces challenges due to stringent regulations governing radioactive materials and the high cost of handling and disposal. Despite these restraints, the consistent need for safety and quality assurance in heavy industries ensures a stable market. Key players operating in this niche market include Beijing Shuangyuan Isotope Technology Co., Ltd., QSA Global, Inc., Atomic Hi‑Tech Co., Ltd., and ANSTO, which specialize in the production and distribution of sealed radioactive sources.

Top 10 Selenium‑75 Companies

1️⃣ 1. Beijing Shuangyuan Isotope Technology Co., Ltd.

Headquarters: Beijing, China
Key Offering: Selenium‑75 sealed sources for industrial radiography and medical diagnostics

Beijing Shuangyuan is a leading manufacturer of high‑activity Selenium‑75 sources, providing reliable, long‑lasting gamma emitters for pipeline and aerospace inspections. The company’s advanced encapsulation technology ensures leak‑tight performance and compliance with international safety standards.

Sustainability & Growth Initiatives:

• Investing in low‑energy irradiation facilities to reduce carbon footprint
• Developing recyclable shielding materials for sealed sources
• Expanding R&D in medical imaging applications

2️⃣ 2. QSA Global, Inc.

Headquarters: Houston, Texas, USA
Key Offering: Industrial and medical Selenium‑75 sources, custom encapsulation solutions

QSA Global supplies high‑purity Selenium‑75 for NDT and nuclear medicine, offering tailored source designs to meet diverse regulatory requirements across North America and Europe.

Sustainability & Growth Initiatives:

• Partnering with universities for isotope research
• Implementing strict waste‑management protocols
• Providing training programs for safe handling of radioactive sources

3️⃣ 3. Atomic Hi‑Tech Co., Ltd.

Headquarters: Shanghai, China
Key Offering: High‑activity Selenium‑75 sources, encapsulation services

Atomic Hi‑Tech focuses on producing activity‑620 TBq sources for heavy industrial applications, leveraging its state‑of‑the‑art irradiation facilities to maintain consistent supply.

Sustainability & Growth Initiatives:

• Adopting modular reactor designs to improve safety
• Engaging in community outreach on radiation safety
• Expanding into emerging markets in Southeast Asia

4️⃣ 4. Source Production & Equipment Company

Headquarters: New York, USA
Key Offering: Selenium‑75 source production, encapsulation, and radiography equipment

This U.S. firm integrates source manufacturing with advanced radiography systems, enabling end‑to‑end solutions for pipeline inspection and aerospace component testing.

Sustainability & Growth Initiatives:

• Investing in automated encapsulation to reduce human exposure
• Collaborating with OEMs for integrated inspection systems
• Developing low‑dose imaging protocols

5️⃣ 5. OSERIX SA

Headquarters: Geneva, Switzerland
Key Offering: High‑purity Selenium‑75 sources, custom shielding solutions

OSERIX specializes in European‑grade Selenium‑75 sources, emphasizing stringent compliance with Euratom regulations and providing customized shielding for diverse industrial applications.

Sustainability & Growth Initiatives:

• Implementing green chemistry in isotope synthesis
• Partnering with EU research consortia on nuclear safety
• Expanding market presence in Eastern Europe

6️⃣ 6. Gilligans

Headquarters: London, United Kingdom
Key Offering: Selenium‑75 sources for industrial NDT and medical imaging

Gilligans provides a portfolio of activity‑370 TBq and 620 TBq sources, catering to both heavy‑industry and medical markets with a focus on regulatory compliance and customer support.

Sustainability & Growth Initiatives:

• Developing modular source cartridges for easier replacement
• Collaborating with hospitals to expand diagnostic use
• Investing in digital radiography integration

7️⃣ 7. ANSTO

Headquarters: Sydney, Australia
Key Offering: Selenium‑75 production, research, and medical isotope development

ANSTO leads the Australian market with a robust production facility, providing Selenium‑75 for both industrial NDT and emerging medical applications such as selenomethionine imaging.

Sustainability & Growth Initiatives:

• Reducing reactor operating emissions through advanced cooling
• Funding national research on isotope applications
• Promoting safe disposal protocols for spent sources

8️⃣ 8. Dr. R. L. Shukla & Associates

Headquarters: Mumbai, India
Key Offering: Custom Selenium‑75 sources for industrial and medical use

The firm provides tailored source designs for the growing Indian NDT market, focusing on cost‑effective solutions and compliance with local regulations.

Sustainability & Growth Initiatives:

• Establishing a regional irradiation center to reduce import dependency
• Training local technicians in safe source handling
• Collaborating with Indian universities on isotope research

9️⃣ 9. Medisource International

Headquarters: Manchester, United Kingdom
Key Offering: Selenium‑75 sources for nuclear medicine and research

Medisource International supplies high‑purity Selenium‑75 for diagnostic imaging and research laboratories, emphasizing rigorous quality control and regulatory compliance.

Sustainability & Growth Initiatives:

• Developing low‑activity source options for sensitive diagnostics
• Implementing ISO 14001 environmental management systems
• Partnering with hospitals for clinical trials

🔟 10. Radiant Isotopes Ltd.

Headquarters: Toronto, Canada
Key Offering: Selenium‑75 sealed sources, encapsulation, and supply chain services

Radiant Isotopes delivers reliable Selenium‑75 sources across North America, with a focus on secure logistics and customer training programs.

Sustainability & Growth Initiatives:

• Investing in secure transport containers to reduce leakage risk
• Developing a digital platform for source tracking and compliance
• Expanding into the Canadian energy sector for pipeline inspections

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🌍 Outlook: The Future of Selenium‑75 Is More Secure and Scalable

The Selenium‑75 market is poised for continued growth, driven by increasing infrastructure projects and the expanding role of nuclear medicine. Regulatory frameworks are evolving to support safer handling, while technological advancements in encapsulation and source design are reducing costs and enhancing performance.

📈 Key Trends Shaping the Market:

• Shift toward high‑activity (620 TBq) sources for faster, higher‑resolution imaging
• Growing adoption of Selenium‑75 in medical diagnostics, especially for pancreatic imaging
• Digital transformation of radiography systems integrating Selenium‑75 sources
• Expansion into emerging economies such as China, India, and Southeast Asia
• Strategic mergers and acquisitions among leading suppliers to broaden geographic reach and product portfolios