The Sapphire Group is an extensive network of experts located throughout North America, Europe and Asia-Pacific. The strength of our global offices comes from the talent and experience our team offers. Together we have successfully addressed problems on both local and global levels thereby increasing our clients’ profitability and competitive advantage.

North America

Robert G. Tardiff, Ph.D., A.T.S. - CEO
Robert G. Tardiff, Ph.D., ATS, co-founder, CEO and Senior Managing Principal, is an internationally recognized expert in toxicology and risk assessment. Previously, he was Chief of the Toxicological Assessment Branch of the U.S. EPA and executive director of the National Academy of Sciences/National Research Council Board on Toxicology and Environmental Health Hazards. Dr. Tardiff is also a fellow of the Academy of Toxicological Sciences.    

Tel: 301/657-8008 Ext. 202 
Email: rgt@thesapphiregroup.com
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M. Leigh Carson, M.S. - Research Scientist 
M. Leigh Carson, M.S., Research Scientist and Information Specialist, is a skilled biologist with responsibilities which include providing technical assistance to risk assessment projects and assisting in the continual management of The Sapphire Group’s extensive scientific information database. Ms. Carson has experience in elements of human health risk assessment, biological analysis, information resource management, community outreach/public communications, and environmental data analysis. 

Tel: 301/657-8008 Ext. 206 
Email: lc@thesapphiregroup.com
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Europe

John Fawell - Managing Principal
John K. Fawell, MBE, Managing Principal and head of the European office, has completed degrees in science applied biology, animal physiology special, MIBol, MCIWEM and a diploma in toxicology. An expert in the health implications and toxicology contaminants in water, he has served as an advisor for the European Community in preparing the environmental quality standards, subcommittee on pesticides and has served on a number of World Health Organization committees.
  
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