Based in Chicago, IL, Controlled Substance Managers, Inc. offers expert drug testing services designed to support workplace safety and ensure compliance with industry regulations. Their team provides accurate and timely testing options, including pre employment, random, and post accident screenings, all while maintaining confidentiality. Committed to professionalism and quality service, Controlled Substance Managers, Inc. helps businesses safeguard their workforce and maintain a drug free environment, making them a reliable choice for all drug testing needs.