Montrose Environmental Group, Inc. Acquires ARI Environmental, Inc.


June 30, 2015 (Irvine, CA) – Montrose Environmental Group, Inc. is pleased to announce it has acquired ARI Environmental, Inc (“ARI”). Terms of the transaction were not disclosed.

Formed in 1983, ARI is a leading, air quality services firm with operations in Illinois, Texas, and Delaware. ARI will continue to operate under its existing name and its team will join Montrose.

Nina Prasad, Co-Chief Executive Officer of Montrose Environmental Group, said, “ARI has a tremendous team with strong technical capabilities, and its geographic footprint is complementary to ours. We are very excited about this partnership.”

About ARI Environmental, Inc. 

ARI Environmental, Inc. (ARI), established in 1983, is an industry leading environmental air emissions testing company. The company’s services include source emissions testing, CEMS certification, emission audits, fugitive emissions monitoring, leak detection and repair (LDAR), HRVOC analysis, RATAs, and analytical laboratory services. ARI is strategically located to serve industrial facilities throughout the United States, with offices in the greater metropolitan areas of Chicago, Illinois; Houston, Texas; and Wilmington, Delaware. 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