American Medical Review
- Offers on-site employee drug testing and physicals to the Chicago metropolitan area.
- http://www.drugtesters.com

Midwest Collection Specialists, Inc.
- Meeting the needs of companies, organizations, and governmental agencies which have specimen collection and drug testing requirements.
- http://www.mcstest.com

Houston Medical Testing Services, Inc.
- Provides employee, home, mobile, on-site and confidential testing services.
- http://www.hmts.com

Compliance Plus Corporation
- Providing collection of urine specimens, lab analysis and Medical Review Officer services.
- http://www.complianceplus.com/

National Drug Testing, LLC
- Special event security and investigative industrial drug testing. On-site collection and testing anytime, anywhere. Certified breath alcohol technicians.
- http://nationaldrugtesting.com

IEBT
- Provides mobile worksite collection services.
- http://www.iebt.com/