About Drug Testing Services, Inc.

Your Industry Leaders & Colorado Pioneers

About Us

Providing industry-leading drug testing services in Denver since 1991.

Drug Testing Services, Inc. has provided industry-leading drug testing services in the Denver Metro Area since 1991 – longer than any of our local competitors. 

In fact, we were one of the pioneers of high quality, friendly, reliable, fast, and hassle-free drug testing in Colorado, and we offer that experience & care to all of our clients. 

Need to get a test done? Whether for yourself, a family member, or even your employees, our Lab-Based and Instant Testing services can get you out the door in 15 minutes or less, with rapid testing results in hand, or results from lab within 48-72 hours!

You can find us conveniently in Denver, or even have us come to you! 

That’s right; Mobile and on site testing is available, 24 hours a day, 7 days a week, anywhere in the State of Colorado.  No location is too far. 

Questions? Give us a call!

John Hodge

Our Founder, Our Story

Drug Testing Services Inc is a minority run business started by John Hodge in 1987.

Recognizing a rise in federally mandated drug and alcohol testing programs, as well as the enactment of a drug free workplace, John decided to create a drug screening center to supply companies and individuals with a place to get reliable testing and enact drug policies in the workplace.

Before starting Drug Testing Services (DTS) John worked 17 years for Blue Cross and Blue Shield as Vice president of human resources, as well as Chief Operating Officer of HMO Colorado, a wholly owned subsidiary of Blue Cross and Blue Shield.

Utilizing his business and corporate knowledge, John started his own small business focusing on values of integrity, reliability, and accuracy. Driven to provide a standard of high quality service, a dedicated and hard working team was created and trained, collectively catered to testing the Colorado area for 30 years!

DTS is now is a family operated business that looks forward to continuing serving new and returning customers alike!

Our Partners

We Partner with the best labs.

Why Choose Drug Testing Services?


Drug Testing Services, Inc. is an industry-leading drug testing services provider in the Denver Metro Area.

Our clients have never had any litigation as a result of our services. We follow DOT regulations and compliance, allowing us to be legally defensible in court!

Don’t hesitate – we’ve got a track record of excellence & success you can bank on.


• Secure a job offer, or secure your company in hiring.


• For Private / Personal Reasons


• Satisfying A Legal Requirement

Education & Sports

• Supporting all Staff & Faculty, and all Students (and Student Athletes)

If you really need to be DOT compliant, then we’re far and away the best fit for your business – with our technical knowledge and sheer ability to help a company develop their drug and alcohol program, we have what it takes to be your trusted partner

  • Federal Motor Safety Administration [FMCSA]
  • Federal Aviation Administration[FAA]
  • Federal Railroad Administration [FRA]
  • Federal Transit Administration[FTA]
  • Pipeline & Hazardous Materials Safety administration [PHMSA]
  • United States Coast Guard [USCG]

We can work with your Custody Control Form, use our full-service lab, and get your MRO reporting results electronically.
Laboratory processing and reporting remains with the client when utilizing their laboratory Custody Control Form.
Rapid or Instant Testing results take approximately 10 minutes. Our results are private and confidential.
All our labs are certified, and all lab based tests are defensible in court, and administered in accordance with the Federal Drug Free Workplace guidelines and state regulations.


"Best experience I've ever had with a screening establishment. Every time I’ve been in for a test over the last year I’ve had nothing but fast and kind service. Thank you for everything… I will definitely recommend out your service to anyone needing top notch service."

"The staff makes a difficult process easier by simply being who they are. They work hard to get me in and out and I am deeply appreciative of their hard work and attitude!"

"We have Used DTS’s mobile testing services for many years and they have always been extremely responsive. Just a call or email and they know they’ll be there. They give us the confidence that, when they’re on the job, that work will get done promptly and professionally- but in a friendly way, too. We have been very happy working with them."

Ron Jensen
Risk / Safety

"Thank you all so much for making the testing experience a pleasant one. Your friendly attitudes are rarely seen in this business, and I can't tell you how much of a difference it really makes. Keep up the great work!"