RSI NUCLEAR, LLC

SIGMA SCIENCE INC specializes in high-stakes engineering and technical advisory services for nuclear energy, environmental compliance, and national security programs. Their core capabilities center on nuclear industry advisory support, including repository licensing, nuclear safety analysis, air and environmental compliance, and stockpile sustainment engineering. The firm provides subject matter expertise to federal teams managing complex regulatory frameworks, technical documentation, and stakeholder engagement for DOE’s nuclear weapons and waste management missions. They deliver specialized advisory services through expert panels, knowledge management initiatives, and tribal collaboration frameworks, demonstrating deep familiarity with NE-8 planning, NA-122 systems, and Yucca Mountain lessons learned. Their technical proficiency spans nuclear regulatory processes, environmental impact assessments, and interdisciplinary technical integration across federal laboratories and defense infrastructure. The contractor maintains a dominant presence with the Department of Energy, where they support mission-critical programs in nuclear waste management, stockpile sustainment, and regulatory licensing. Their work for DOE is highly focused on technical advisory roles within the Office of Nuclear Energy and National Nuclear Security Administration, often under GSA contract vehicles. Limited engagements with the Department of Defense and GSA suggest a strategic alignment with energy security and federal procurement infrastructure, rather than broad defense systems integration. Their primary industry focus is engineering services for nuclear and scientific infrastructure, with secondary work in technical consulting and one documented engagement in shipbuilding and repair. This positions them as a niche provider in nuclear lifecycle support, particularly in regulatory and technical advisory domains where precision, security, and institutional knowledge are paramount. SIGMA SCIENCE INC is a small business structured as a 2L entity, headquartered in Albuquerque, New Mexico, with no public certifications on record. Their geographic proximity to DOE national laboratories enhances their ability to deliver on-site technical support and collaborate with federal research partners in the nuclear science ecosystem.