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What We Do...

Guardian Testing Services, LLC is a full service drug testing and background check company.  We offer a variety of background checking services, drug and alcohol testing services, and over 75 different individual drug and alcohol testing products that can be ordered through our website at guardiantesting.com

The following are the major groups:

  • Workplace Drug Testing
  • Drug Free School Programs
  • In-Home Drug Testing
  • DNA and Paternity Testing
  • Alcohol Testing
  • Steroid Testing
  • Hair Follicle Testing
  • Background Checks


What People Are Saying About Us...

  Guardian Testing Services was invaluable in getting our Drug Free Workplace program set up from beginning to end. Their professionalism and "know-how" in dealing with all aspects of workplace drug testing helped relieve us of this burden.  
-- Doug, Shop Foreman, Machine Shop, Cincinnati, Ohio
  Guardian Testing Services has been a valuable asset and business partner in our start-up and ongoing business venture. After the initial exchange of information, Guardian took care of all the candidate contact, appointment scheduling, follow-up and reporting of all testing required by our company. They are a great service provider and we will continue to do business with them in the future.  
-- Garrett, Business Owner, Educational Institute, Cincinnati, Ohio
  I use Joe from Guardian Testing for my background checks. He was referred to me on Twitter and he's exactly what you need if you're doing checks on your candidates or employees.  
-- Jim, Owner, Recruiting Firm, St Louis, Missouri
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