MES was established by the General Assembly in 1970 to assist with the preservation, improvement, and management of the quality of air, land, water, and natural resources, and to promote the health and welfare of the citizens of the State. Today, MES employs over 800 teammates and operates more than 1,000 environmental projects across Maryland and the Mid-Atlantic region. As a not-for-profit business unit of the state of Maryland, MES provides multi-disciplinary environmental compliance services to enhance and protect the environment through innovative solutions to the region’s most complex environmental challenges.