Company logo with Redwood Tree. RETRA - Redwood Exposure Toxicology and Risk Assessment.
Company logo with Redwood Tree. RETRA - Redwood Exposure Toxicology and Risk Assessment.
WHO WE ARE
RETRA is a scientific consulting firm specializing in environmental health sciences, toxicology, and risk assessment. Our experts deliver evidence-based guidance on the human health impacts of environmental and product-related exposures, helping clients manage and respond to regulatory and legal risks. We deliver data-driven insight with technical integrity, and proven experience across environmental, occupational, and product domains.