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Who We Are: Leadership

Gilbert Torres

Gilbert Torres is President /CEO of Sigma Science Inc. In this capacity, he is responsible for technical and business operations. His focus areas include; nuclear safety, global security and nonproliferation, Read More

Russell Durrer

Russell Durrer is a Principal Partner at Sigma Science Inc. with over 30 years of experience in the areas of radiological engineering/health physics, facility management, health and safety, and quality Read More

Lisa Stringfield

Lisa Stringfield is a Principal Partner at Sigma Science with over 25 years of experience as a Senior Technical Safety Analyst and Project Manager in the areas of safety analysis and risk assessment. Read More