CTS started out as an international supplier of drug testing kits to end users, such as labs and rehab facilities. Since then we have expanded our portfolio of products and services to include: Pre-Employment screening, D.O.T Compliance, Paternity testing, and Medical supplies. With over 10 years of experience, our expertise is second to none. With our affiliated manufacturers and network of over 18,000 laboratories Nationwide, we are able to provide the services you need at a price you'll love. Contact us to customize a package that's right for you.