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Montrose Environmental Group

Controversies

Controversies tied to this brand in public sources. A listing is not a finding of fault.

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  1. 2022

    Ransomware attack on the Enthalpy Analytical laboratory network

    Montrose was the victim of a sophisticated ransomware attack affecting computers and servers in Enthalpy Analytical’s laboratory network. The available reference material does not specify the full operational, data, or financial consequences.

  2. 2019

    Questions raised about CTEH toxicology reports

    A Grist report alleged that Montrose subsidiary CTEH mishandled or inadequately prepared toxicology reports, including work connected to a chemical explosion in Houston. One toxicologist characterized the work negatively. The available reference material reports allegations rather than a confirmed regulatory or judicial finding.