Naperville, Illinois Drug Test Services


Naperville, Illinois Drug Screening & Workplace Testing Services

Why Choose WSI in Naperville, Illinois?

Our Services in Naperville, Illinois

Drug Test

Random Management Programs

Physical Exams

Specialized Testing

Expert Training Programs

Background Check Services

Core Services


Reason for Test


  • Pre-Employment Test
  • Random Test
  • Post-Accident Test
  • Reasonable Suspicion Test
  • Return to Duty Test
  • Follow-up Test
  • Periodic Test

Physicals & Health Testing


  • DOT Physical
  • Physical
    • Respirator Physicals: For workers who handle hazardous substances.
    • Pulmonary Function Test
    • OSHA Medical Questionnaire
    • Lift Test
    • Chest X-Rays
    • Kraus Weber
    • EKG
    • Vision Test
      • Vision Snellen
      • Vision Titmus
      • Vision Ishihara
      • Vision Jager
  • Titer Test
    • Hepatitis A
    • Hepatitis B
    • Hepatitis C
    • TransFERRON Gold Tuberculosis
    • Measles
  • Wellness Testing

Workplace Programs and Training


Additional Services


  • FMCSA Clearinghouse Support
  • Background Checks
    • County Background Search Check
    • State Background Search Check
    • Federal Background Search Check
    • Name Alias Background Search Check
    • Sex Offender Background Search Check
    • OIG Background Search Check
    • SSN Trace Background Search Check
    • Global Terror Watch List Background Search Check
    • Adverse Action Background Search Check Assistance

FMCSA Clearinghouse Compliance Support

Interested? Contact Us

Our Locations in Naperville, Illinois

NameAddressCityStateZIP Code
WSI Testing Location100 Spalding Drive Naperville Illinois 60540
WSI Testing Location640 S Washington St Naperville Illinois 60540
WSI Testing Location801 S WASHINGTON ST Naperville Illinois 60540
WSI Testing Location801 S. WASHINGTON STREET Naperville Illinois 60540
WSI Testing Location1020 E OGDEN AVE STE 208 Naperville Illinois 60563
WSI Testing Location1260 Iroquois Avenue Naperville Illinois 60563
WSI Testing Location1971 Gowdey Road Naperville Illinois 60563
WSI Testing Location636 Raymond Drive Naperville Illinois 60563
WSI Testing Location710 East Ogden Avenue Naperville Illinois 60563
WSI Testing Location2272 W 95th St Naperville Illinois 60564
WSI Testing Location3360 Lacrosse Lane Naperville Illinois 60564