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Montrose Environmental Group, Inc. (“Montrose”) is pleased to announce that on [March 30, 2018], through a wholly-owned subsidiary, it acquired Leymaster Environmental Consulting, LLC (“LEC”). LEC will become a part of Montrose’s Environmental Resilience and Sustainability Division and will further strengthen its environmental and geotechnical engineering presence in Southern California. Terms of the transaction were not disclosed.
Based in Long Beach, California, LEC provides environmental consulting, management, site assessment, remediation design and implementation, and field services to a wide variety of clients and industries. Its broad range of experience affords their clients innovative and cost-effective solutions for all their environmental concerns while meeting the requirements of environmental laws and regulatory agencies.
Mark S. Leymaster, owner and President of LEC, stated, “Discussing the performance and vision with the leaders of Montrose, and the potential growth and opportunities for my employees, made the decision to join the Montrose team easy. “
Josh LeMaire, Chief Operating Officer of Montrose commented, “Montrose Environmental and our team of nearly 1200 employees would like to welcome Mark and The Leymaster group to our growing family. We are excited for the opportunity to help spread the Montrose Values, Culture, and Mission among Leymaster and their clients.”

About Leymaster Environmental Consulting, LLC

Formed in 2000 and headquartered in Long Beach, California, Leymaster Environmental Consulting, LLC (“LEC”) provides environmental consulting, management site assessment, remediation design and implementation, and field services to a wide variety of clients and industries. Its staff includes experienced and licensed professionals in geology, hydrogeology, engineering and registered environmental assessment that are committed to providing prompt and expert environmental services.
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About Montrose Environmental Group, Inc.

Montrose Environmental Group, Inc. (“Montrose”) is an environmental services provider offering measurement and analytical services as well as environmental resiliency and sustainability solutions to clients across a wide array of sectors. Montrose’s qualified engineers, scientists, technicians, associates, and policy experts are proud of their collective expertise and the collaborative nature of our approach to helping clients. Montrose strives to optimize environmental resiliency in a way that effectively complements its clients’ decision-making and operations and efficiently fulfills their project requirements. Headquartered in Orange County, California, Montrose has over 50 offices across the country and over 1,000 employees nationwide.
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