Montrose Environmental Group, Inc. (the “Company,” “Montrose” or “MEG”) (NYSE: MEG) is on a mission to help protect the air we breathe, the water we drink, and the soil that feeds us, and aims to support economic development. The Company announced today the planned dates for its third quarter 2025 results and conference call.

On Tuesday, November 4, 2025, after the close of trading on the New York Stock Exchange, Montrose intends to release its third quarter 2025 results.

On Wednesday, November 5, 2025, at 8:30 a.m. Eastern Time, Montrose plans to host a conference call to discuss the Company’s third quarter 2025 results and forward outlook.

A live webcast of the conference call will be available in the Investors section of the Montrose website at www.montrose-env.com. Alternatively, to participate in the live call, dial (800) 715-9871 (toll-free in North America) or +1 (646) 307-1963 (international) approximately ten minutes before the scheduled start. When prompted, please provide the Conference ID: 8690520 to join the Montrose Third Quarter 2025 Earnings Conference Call.

An archived replay of the call will be available on the Investors portion of the Montrose website for 30 days following the live call.

About Montrose

Montrose is a leading environmental solutions company focused on supporting commercial and government organizations as they deal with the challenges of today and prepare for what’s coming tomorrow. With ~3,500 employees across 120 locations worldwide, Montrose combines deep local knowledge with an integrated approach to design, engineering, and operations, enabling Montrose to respond effectively and efficiently to the unique requirements of each project. From comprehensive air measurement and laboratory services to regulatory compliance, emergency response, permitting, engineering, and remediation, Montrose delivers innovative and practical solutions that keep its clients on top of their immediate needs – and well ahead of the strategic curve. For more information, visit www.montrose-env.com. Follow us on LinkedIn.

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