Montrose Environmental Group, Inc. is pleased to announce it has acquired the assets of Curtis & Tompkins, Ltd. Curtis & Tompkins will become part of Enthalpy Analytical, Inc. and further analytical testing capabilities.
Formed in 1878, Curtis & Tompkins is a leading, full service environmental laboratory located in Berkeley, California. Curtis & Tompkins will continue to operate under its existing name and existing management will join the Montrose team.

About Curtis & Tompkins

Curtis & Tompkins has been providing testing laboratory services since 1878 and has focused on environmental analyses in support of municipal, State, and Federal programs since 1982. Curtis & Tompkins was granted “classes” both the National Environmental Laboratory Accreditation Program (NELAP) and the Department of Defense Environmental Lab Accreditation Program (DoD-ELAP). Curtis & Tompkins is also ISO-17025 accredited. For more information, visit

About Montrose Environmental Group, Inc.

Montrose Environmental Group, Inc. is a national, high-growth environmental company offering Air Quality and Environmental Laboratory services to a diverse range of clients in industry and government. Headquartered in Orange County, California, Montrose Environmental Group, Inc. has 42 offices and approximately 750 employees nationwide. For more information, visit