EA Engineering Science and Technology, Inc., PBC is a consulting firm that provides environmental, engineering, compliance, and natural resources management services to a wide range of clients in the public and private sectors. The company was founded in 1973 and is headquartered in Hunt Valley, Maryland. EA has over 500 employees and operates from more than 25 offices across the United States. The company's services include air quality management, water resources management, waste management, and sustainability consulting. EA has been recognized for its sustainability efforts and has received numerous awards for its work in this area.