Looking For Better Ways to Serve Our Clients

Oschmann Employee Screening Services has been a national leader in developing, managing and servicing Drug Free Workplace Programs, Department of Transportation Compliance Programs and Drug & Alcohol Testing Consortiums since 1996. Our goal is to minimize our clients risk through smart, streamlined business solutions. At Oschmann Employee Screening Services, we will work with you to develop and implement professional and cost-effective programs that will help you meet your safety and business objectives.

We have incorporated the most state-of-the-art drug and alcohol testing management software and background screening software to offer you the highest level of service in the industry.

Our team prides itself on maintaining the highest level of training, certifications and accreditations that the industry offers and our clients expect including…

  • DATIA Certified Professional Collector®
  • DATIA Certified Professional Collector Trainer®
  • DATIA Certified Medical Review Officer Assistant®
  • DATIA Accredited Collection Facility
  • Breathalyzer Sales & Training



collection datia accredited facility

DATIA Accredited Collection Facility – Upholds the highest professional standards in facility operations and personnel training

Torch Awards

bbb torch awards

BBB Torch Awards for Ethics –
2014 Winner of the BBB of Southern Arizona Ethics Award representing trust, integrity and performance

Copper Cactus Award

tucson metro chamber copper cactus awards

Copper Cactus Awards –
2014 Recipient of the Tucson Metro Chamber Copper Cactus Award for Business Growth
2019 Finalist of the Tucson Metro Chamber Copper Cactus Award for Business Growth

Readers' Choice

Arizona Daily Star’s Readers’ Choice
2020 Best Drug / Alcohol / Paternity Test

Founding 100 Member

Founding member of the National Drug & Alcohol Screening Association

Where we started, to where we are now...


Gary Oschmann started his company with a single meeting with his first client. Working out of his one bedroom apartment, he built a solid client base providing DOT compliance services including drug test management and driver qualification file services for FMCSA clients.


Gary leased his first office on 44th Street, opening his first official Oschmann run drug and alcohol testing collection facility
in Tucson.


Oschmann Organization was renamed to Oschmann Employee Screening Services. The new name better reflects the direction and level of services provided by the company.


Oschmann Employee Screening Services had a custom collection van built to provide on-site testing services at locations normally not attainable without proper bathroom facilities.


Oschmann Employee Screening Services moved to a larger building on South Palo Verde Road in Tucson. The new building allowed the company to continue to grow and service its clients in a customized facility.


Oschmann Employee Screening Services acquired the customer base of Professional Air Charter Services, a Third Party Administrator/Consortium specializing in Federal Aviation Administration drug and alcohol testing programs. This acquisition allowed Oschmann to continue to grow its DOT consortium programs.


Oschmann Employee Screening Services acquired the assets and client base of Comprehensive Testing Services based out of Gilbert, AZ expanding its client base in the Phoenix, AZ market.


Oschmann Employee Screening Services acquired Phoenix, AZ mobile testing company Reliable On-Site Substance Testing, expanding their presence in the Phoenix area and adding 3 additional mobile testing units in addition to adding on-site collectors in Northern and Western Arizona.


With the recent acquisitions and company growth, Oschmann Employee Screening Services moved to its current building and location on Alvernon Way in Tucson, leading the way for additional growth.