MISTRAS Cambridge was formerly Physical Acoustics Ltd., and has been based in Cambridge since 1983. The company changed its name in 2008 in line with our parent, which had changed name from Physical Acoustics Corporation to MISTRAS Group Inc. prior to becoming a publicly-traded company on the NYSE (MG). The Cambridge office specialises in Acoustic Emission (AE), structural monitoring, and advanced automated NDT (nondestructive testing), and is the headquarters for MISTRAS in the U.K.

MISTRAS Bridgend was formerly Tekra UK Ltd, incorporated in 2006 as a rope access and engineering company, becoming part of MISTRAS Group in 2012. MISTRAS Hartlepool was formerly Engineering Test Services (ETS) before becoming part of the MISTRAS Group in 2011, and MISTRAS Rotherham formerly FOCUS NDT, became part of the group more recently. MISTRAS Aberdeen is an office opened in 2013 to cope with increased demand in business needs and improve logistic Strategies.