N3B Los Alamos – Companies

Newport News Nuclear BWXT-Los Alamos (N3B)  comprises parent companies Stoller Newport News Nuclear and BWXT Technical Services Group, Inc. The N3B team brings with it two decades of successful DOE Environmental Management mission completion at Department of Energy/National Nuclear Security Administration sites and national laboratories.


Stoller Newport News Nuclear

SN3, part of Huntington Ingalls Industries (HII), brings the management, resources, capabilities and workforce of more than 37,000 people and delivers Tier 1 prime contractor capabilities to clients including complex nuclear facility management and environmental management. Performance highlights include the operation of nuclear production facilities at Savannah River and waste management at Hanford. Safe performance has led to earning the first nationwide DOE Voluntary Protection Program STAR. Learn more here.



BWX Technologies, Inc. (NYSE:BWXT) is a leading supplier of nuclear components and fuel to the U.S. government; provides technical and management services to support the U.S. government in the operation of complex facilities and environmental remediation activities; and supplies precision manufactured components, services and fuel for the commercial nuclear power industry. With approximately 6,000 employees, BWXT has nine major operating sites in the U.S. and Canada. In addition, BWXT joint ventures provide management and operations at a more than dozen U.S. Department of Energy and two NASA facilities. Learn more here.


Critical Subcontractors


Longenecker & Associates

Longenecker & Associates Inc (L&A), a woman-owned small business, brings more than 25 years’ experience in working across the U.S. Department of Energy complex to strengthen quality and improve mission performance. With approximately 230 internationally recognized experts, L&A supports the Government and/or Contractors at all major DOE sites including Hanford, Savannah River, Idaho, Oak Ridge, Sandia, Los Alamos, WIPP, Pantex, Nevada, Portsmouth and Paducah as well as similar sites in the United Kingdom and Canada. As a values-based company, L&A’s core values are a critical part of how its business is conducted, and they bring proven governance approaches to optimize mission delivery. Learn more here.


Tech2 Solutions

Tech2 Solutions is a joint venture formed by partners Sealaska Technical Services, LLC and Tetra Tech, Inc. Through our parent companies, we provide more than 50 years of experience in water and waste water engineering and remediation. Sealaska is an Alaska Native Corporation with broad water and soil remediation experience. Tetra Tech is a leading provider of consulting and engineering services supporting commercial and government clients focused on water, environment, and resource management. With reachback to 21,000 staff worldwide, Tech2 Solutions provides clear solutions to complex problems. Learn more here.