Founded in 1986, Holtec International is a vertically integrated energy-technology company that designs, engineers, analyzes, licenses, fabricates, and constructs equipment and facilities. Its manufacturing operations include nuclear power components and air-cooled condenser systems, alongside products and services for nuclear fuel management, heat transfer, and clean energy. The company reports a global operating presence across nine countries.
ISO 9001:2015
ISO 9001:2015 (Holtec Europe)
ISO 9001:2025 (Holtec Britain Limited)
ISO 9001:2015 (Holtec Asia)
ISO 3834:2005
ASME N Stamp
ASME N3 Stamp
ASME NB Stamp
ASME NPT Stamp
ASME NS Stamp
ASME R Stamp (HMD)
ASME R Stamp (AMD)
ASME NR Stamp (HMD)
ASME U Stamp (HMD)
ASME U Stamp (AMD)
10 CFR 50 Appendix B
Compliance program
10 CFR 72 Subpart G
Compliance program
10 CFR 71 Subpart H
Compliance program
ASME Boiler and Pressure Vessel Code Section III
Compliance program
ASME Boiler and Pressure Vessel Code Section VIII
Compliance program
Minority Business Enterprise (NMSDC)
NIST SP 800-171
Compliance program
ISO/IEC 27001 alignment
Compliance program
10 CFR 73.54
Compliance program
ASMEBPVCSECTIONIII
Quality certification
ASMEBPVCSECTIONVIII
Quality certification
NIST 800-171
Cybersecurity certification
ISO27001
Cybersecurity certification
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MET WELD INTERNATIONALBuilt on decades of welding and fabrication experience, Met Weld International is a U.S.-owned small business serving industrial, power-generation, and commercial nuclear customers from its Upstate New York facility. The company is known for carrying projects from design through startup, with a particular depth in hydrogen-cooled generator support and fuel-conditioning work. Its quality system is certified to ISO 9001:2015 and includes ASME Section III and Section VIII authorizations.ALTAMONT, NY
Ormat Technologies, IncOrmat Technologies, Inc. develops, manufactures, and operates geothermal and recovered-energy power plants and supplies power-generating equipment to customers in more than 30 countries. The company reports six decades of experience and a vertically integrated business that also includes energy storage and solar photovoltaic activity. Its manufacturing facilities cover more than 23,000 square meters.PHILADELPHIA, PA
BWX Technologies, IncBWX Technologies, Inc. manufactures nuclear systems, components and fuel for government and commercial applications. Its roots trace to the 1850s water-tube boiler business, and the company reports operating 19 manufacturing facilities globally with more than 11,000 employees. Today its work spans naval nuclear propulsion, commercial nuclear power, nuclear medicine and environmental restoration.EUCLID, OH