Complete Solutions, Minus the Complexity.

ATC Group Services LLC (ATC) is one of the foremost diversified environmental firms in the United States. Over the past 30 years, ATC has become one of the leading national providers of environmental and engineering support services nationwide. We are a full service firm specializing in hazardous materials management, industrial hygiene, safety and compliance, environmental remediation, geotechnical and construction material testing, laboratory services and health & safety training.

ATC maintains nearly 100 offices throughout the United States with over 1,800 employees providing our clients’ access to a diverse group of qualified professionals with an in-depth knowledge of local, state and federal regulatory standards.