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ESi Launches Biomechanics and Safety Subpractices

ESi today announced the launch of two new sub-practices in its growing Biomechanics and Safety practice -- important steps in ESi’s continuing drive to intensify focus on key areas of our business, and amplify its ability to provide high quality, high value technical services to our clients. As part of these organizational changes, Anne Mathias, P.E. has been promoted to Sr. Managing Consultant and Director of a new Safety and Risk Assessment sub-practice, and Amber Rath Stern, Ph.D., P.E. has been promoted to Director of a new Biomechanics sub-practice. 

“Both Anne and Amber are seasoned and successful leaders who have consistently taken on increasing responsibility,” said Chief Operating Officer and General Counsel Will Pinkston. “They are exceptionally talented and have established a record of leadership and technical achievements both here at ESi and in their respective fields. They continue to add fresh perspectives to our practice and I look forward to seeing what they can accomplish leading these two critical areas.”

Safety and Risk Assessment Sub-Practice

Mrs. Mathias joined ESi in 2010, bringing highly regarded technical expertise and a wealth of experience in biomedical and mechanical engineering, including biomechanics, ergonomics, experimental design, human locomotion, safety, and injury mechanisms and tolerance. Throughout her career, she has established a track record of strong execution and performance, along with an ability to collaborate effectively within our practice and across our various disciplines.

Joining Mrs. Mathias in the new Safety and Risk Assessment Sub-Practice are notable industry veterans Principal Dennis Brickman, Sr. Managing Consultant Kenneth Smith, Jr., P.E., Sr. Managing Consultant Zdenek Hejzlar, Ph.D., CSP, Sr. Consultant George Karosas, P.E., CSP, Sr. Consultant Michael Van Bree, and Sr. Staff Consultant Peter Bouldin.

Biomechanics Sub-Practice

Amber Rath Stern, Ph.D., P.E. joined ESi in 2013, bringing deep expertise in the fields of biomechanical analysis and mechanical engineering. She also has extensive experience in computational modeling, experimental design, mechanical testing, and analysis of data in national motor vehicle injury and vehicle crash databases. Dr. Stern is generous in sharing her knowledge and expertise and has been recognized with numerous national and international awards. She regularly presents and publishes in scientific journals, and has well over 100 articles, abstracts and presentations to her name.

Joining Dr. Stern in the new Biomechanics Sub-Practice are Sr. Managing Consultant Mitchell Garber, M.D., M.P.H., M.S.M.E., Sr. Consultant Peggy Shibata, M.S., P.E. and Forensic Nurse & Certified Legal Nurse Consultant Lee Campbell, RN, BSN, CLNC.

The structure of the other areas of our Biomechanics and Safety practice will remain the same, and will continue to report to Principal and Practice Group Director Erick Knox. There are also no reporting changes in the Regulatory sub-practice, which continues to be managed by Sr. Managing Consultant Jennifer Ahearn.

“Our consistent focus on talent development is building a best-in-class leadership pipeline that is fueling our success and positioning ESi well for sustainable long-term growth," said Pinkston. "These appointments enable us to continue to elevate our next generation of talent, further augmenting an already strong leadership bench and ensuring our ability to meet the changing needs of our business and our clients. I have no doubt that Anne and Amber will lift our company to even greater heights in the years ahead.”

About ESI

ESi is a full-service engineering, scientific, and technical consulting firm with locations coast-to-coast. With state-of-the-art facilities, equipment, and an extensive national network of qualified professionals in practically every technical discipline; ESi can deploy the right team for virtually any project. To learn more about how we help clients solve their most challenging technical problems, visit

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