Wienhoff Drug Testing is a national company that was founded in Boise, Idaho in 1988 and is owned by Colleen Wienhoff, a nationally recognized expert in drug testing with over 31 years in the industry. Our dedicated staff of friendly professionals is always eager to help our clients. Of primary focus to us is DOT compliance. Our knowledge of and strict adherence to DOT standards in administering testing programs has situated us as industry leaders and experts. With over 3000 client companies, Wienhoff Drug Testing is Idaho’s most trusted drug testing program administrator. Our clients include large and small municipalities, County, State and Federal agencies and private companies from all industries. We are a group company, with an additional office in Salem, Oregon (Bio-Med Drug Testing Services, Inc.). Why Wienhoff Drug Testing? Experience: Wienhoff Drug Testing has over 20 years experience in the industry serving thousands of companies. Integrity: Wienhoff Drug Testing uses the best technology and most well-refined processes to ensure that, from specimen collection to result delivery, you can trust and depend on our service without compromise. Reliability: Our processes and laboratory partners are simply the most reliable in the nation. Our standards are high because yours are.