March 2, 2026
Agricultural expert joins Chemical Regulation & Food Safety practice in Washington, DC
Exponent is pleased to welcome agrochemical, biological science and regulatory expert Bonnie MacCulloch to our Washington, D.C., office as a senior managing scientist in the Chemical Regulation & Food Safety practice. Ms. MacCulloch is a seasoned regulatory strategist and leader in the agrochemical sciences, with a strong record of advancing sustainable and biological crop protection innovations.
For more than 20 years, Ms. MacCulloch has served as a scientific and regulatory consultant to many of the world's leading agrochemical companies. She specializes in regulatory intelligence and policy monitoring; state, federal, and international registrations; organic certification and Organic Materials Review Institute (OMRI) compliance; technical data gap analysis and dossier preparation; label development and claims substantiation; biostimulant and fertilizer regulatory pathways; and advancing emerging technologies.
Before joining Exponent, Ms. MacCulloch held several leadership roles directing regulatory strategies for biopesticides, biostimulants, fertilizers, and conventional crop protection products. Her work has included global registration strategies, regulatory submissions, and product lifecycle management and stewardship across state agencies, the U.S. Environmental Protection Agency, the Canadian Food Inspection Agency, Health Canada's Pest Management Regulatory Agency (PMRA), and other international regulatory bodies.
Ms. MacCulloch's background uniquely combines hands-on scientific research, field and biological monitoring, and deep regulatory expertise, fueling a career dedicated to advancing innovation, sustainability, and compliance in agrochemical and biorational technology and food safety.
Ms. MacCulloch earned a Master of Science degree in environmental and forest biology, with a concentration in entomology, from the State University of New York, Syracuse, College of Environmental Science & Forestry and a Bachelor of Science in environmental interpretation from the University of Maine, Orono.
"My professional goals have centered on delivering end-to-end stewardship for agrochemical and biological technologies. Exponent's breadth of expertise and excellent reputation provide a powerful platform to help clients move beyond registration toward meaningful product integration into modern crop protection systems."
— Bonnie MacCulloch, M.S., Senior Managing Scientist, Chemical Regulation & Food Safety
Exponent's Chemical Regulation & Food Safety practice specializes in timely, evidence-based insights that help clients navigate complex global regulatory frameworks. It also provides strong technical support for agricultural and food production issues. Our teams include chemists, toxicologists, ecotoxicologists, epidemiologists, biostatisticians, risk assessors, and regulatory consultants experienced in issues related to foods, food ingredients, food safety, nutrition, and personal care, cosmetics, pesticide, and non-pesticide products — including conventional chemicals, biochemicals, agrichemicals, microbials, antimicrobials, consumer products, and biotechnology.
