Companies Directory

For more than 34 years, Comprehensive Drug Testing, Inc. (CDT) has managed and administered drug and alcohol testing programs for clients across North America. Our commitment to quality, customer service, industry knowledge, and professionalism are why clients choose CDT to manage their programs. CDT manages anti-doping testing programs for major professional sports organizations throughout North America. We manage the entire process, including random selection of donors, collections, reporting, and overall program management. CDT is dedicated to the pursuit of fair, safe, and clean competition. CDT also manages workforce drug and alcohol testing for state and federal agencies, public works associations, construction organizations, and corporations nationwide. CDT’s services include DOT testing, non-DOT testing, breath alcohol testing, driver pool management, background screening, verification of employment, and clearing house management. CDT excels in the drug and alcohol testing industry by adhering to strict quality control, procedural management, and exceptional customer service. CDT believes in a holistic approach to safer work environments. As such, CDT offers a wide range of education programs from those aimed at improving the ability to identify some who might be using drugs (reasonable suspicion) to general leadership development. CDT's instructors are experts in their field and can provide in-person or online training to meet our customer’s needs. It is CDT's unique experience with both sports and workforce employee testing programs that solidifies us in this field. Our philosophy is to provide the highest level of quality drug and alcohol testing services while exceeding the expectation of our clients. CDT’s longstanding relationships with our clients displays our track record of our commitment to the excellence.

COMPREHENSIVE ENGINEERING PC is a multi-disciplined consulting engineering company based out of 4650 PLAINFIELD AVE NE, SUITE A, GRAND RAPIDS, Michigan, United States.

CFS has decades of invaluable experience in providing critical food safety services. Because we bring a wealth of expertise, you don’t have to learn new food safety initiatives and conduct critical training. We remove the burden of in-house training and audits from your quality and food safety managers so they can dedicate their valuable time to your business. Our experts work with many of the bestknown food manufacturers, distributors and retail food chains in the industry, paving the way to secure new business and increase existing business—while protecting the very products that generate that business. CFS can help your business grow by maintaining a practical food safety system to achieve high audit scores year after year—and conforming to new food safety initiatives required by retailers and other manufacturers. Our shared goal is a safe food environment with a competitive edge in the marketplace.