Controlled Substance Managers, Inc., located in Chicago, IL, specializes in comprehensive drug testing services for businesses and organizations. Their expert team provides reliable testing solutions to ensure compliance with industry regulations and promote a safe workplace. Committed to accuracy and confidentiality, Controlled Substance Managers, Inc. offers a variety of testing options, including pre employment, random, and post incident screenings. With a focus on exceptional customer service, they help clients maintain a drug free environment while safeguarding their employees and assets.