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Sotirios Vahaviolos


Sotirios J. Vahaviolos

Founder and Executive Chairman

Sotirios J. Vahaviolos is the company’s Founder and Executive Chairman. After founding MISTRAS in 1978 under the name Physical Acoustics Corp., Dr. Vahaviolos served as Chairman, President, and Chief Executive Officer until 2017. Prior to joining Mistras, Dr. Vahaviolos worked at AT&T Bell Laboratories. Dr. Vahaviolos received a BS in Electrical Engineering and graduated first in his class from Fairleigh Dickinson University and received a Master of Science (EE), Masters in Philosophy and a Ph.D.(EE) from the Columbia University School of Engineering. During Dr. Vahaviolos' career in NDT, he has been elected Fellow of The Institute of Electrical and Electronics Engineers, a member of The American Society for Nondestructive Testing (ASNT) where he served as its President from 1992-1993 and its Chairman from 1993-1994, a member of Acoustic Emission Working Group (AEWG) and an honorary life member of the International Committee for Nondestructive Testing. Additionally, he was the recipient of ASNT's Gold Medal in 2001 and AEWG's Gold Medal in 2005. He was also one of the six founders of NDT Academia International in 2008.

Chairman of the Board