Exhibit 21.1
Mistras Group, Inc. Subsidiaries:
Other Names under which | State of | |||
Name | Subsidiary Does Business | Organization | ||
Anru Physical ALC TLP Beheer B.V. | The Netherlands | |||
CISMIS Springfield Corp. | Delaware | |||
DIAPAC Ltd. | Russia | |||
Envirocoustics A.B.E.E. | Greece | |||
Euro-Physical Acoustics S.A. | France | |||
Mistras Canada Inc. | Canada | |||
Nippon Physical Acoustics Ltd. | Japan | |||
Physical Acoustics Argentina S.A. | Argentina | |||
Physical Acoustics Corporation | Delaware | |||
Physical Acoustics India Private Ltd. | India | |||
Physical Acoustics Ltd. | England & Wales | |||
Physical Acoustics South America LTDA | Brazil | |||
Quality Services Laboratories, Inc. | Delaware | |||
ThermTech Services, Inc. | Florida |