Our company has dealt with GLMDT since 2013. They have helped us to stay in compliance of DOT testing for our drivers and employees.  GLMDT comes to our facility and performs the tests in a timely, professional manner.  Jamie and Kristine are great to work with and i would recommend their company to anyone looking for an effective, easy to use means to accomplish their drug screening needs. 


Dave F.

Northern Logistics

Get the Onsite Advantage

We have worked with Great Lakes Mobile Drug Testing (GLMDT) since February 2014. Since working with GLMDT, they have performed in a timely and professional manner using the proper documentation so we no longer worry about compliance issues.  GLMDT is effective and easy to utilize. GLMDT staff is a pleasure to work with. They are organized, efficient, extremely competent, as well as reliable and conscientious of their work.  I would recommend their company to anyone looking for a way to accomplish their drug screening needs.


Kelly C.

Isabella County Transportaion Commission

We have been using Great Lakes Mobile Drug Testing since November, 2013. We use them for pre-employment drug screens and for quarterly random testing.  They have proved to be very efficient.  They are easy to work with as far as scheduling goes and have been on time and accurate.   


We would recommend their services.


Jason K.

Answer Heating and Cooling