About USDTL
United States Drug Testing Laboratory (USDTL) is a business-to-business laboratory that is a leader in toxicology, alcohol biomarkers, and substance use testing for all stages of life. We are on a mission to ensure the hardest cases do not go without resolution by specializing in niche areas of drug and alcohol testing. We have decades of experience and innovation focused on serving our clients’ population health needs.

Our Story
Founded in 1990 by Veronica and Doug Lewis, United States Drug Testing Laboratories (USDTL) has spent more than three decades at the forefront of forensic toxicology, pioneering advanced testing for alcohol and substance use in newborns, children, and adults through specimens ranging from umbilical cord and meconium to hair, nails, blood, and urine.
Headquartered in Des Plaines, Illinois, USDTL has grown into a trusted partner for hospitals, health systems, court systems, and employers across the U.S. and internationally, built on a foundation of scientific rigor and an unwavering commitment to accuracy. In January 2025, USDTL entered an exciting new chapter when Northlane Capital Partners (NCP), a healthcare-focused private equity firm, invested in the company alongside its founders, a partnership that brought new resources, expertise, and momentum to USDTL’s mission.
With this strategic backing, USDTL is expanding its capabilities, deepening its partnerships, and continuing to innovate in specialized forensic and clinical testing, all while staying true to the founders’ original vision of delivering trusted, science-driven answers to the clients and communities who depend on them.
OUR STORY
Nationwide and International Reach
Scientific Excellence
Worldwide Reach
Collaboration
We build strategic partnerships with organizations that focus on population health, and strive to make the most ethical business decisions based on the needs of the market.
Careers at USDTL
DOWNLOAD our Certifications & Accreditations
Certifications & Accreditations



Certifications
State Certifications
Leadership
Sales

Director of Employer, Strategic & Partner Channels

Grace Miranda



Business Development Manager

Grace De La Pena




Managers

Certification Department Manager

Mary Jones



Client Services Manager

Sarah Toma


Ready to Partner with USDTL?
For over 25 years, USDTL has delivered accurate, reliable laboratory testing services across 200 locations nationwide. From hospitals to government agencies to employers, we partner with organizations that demand precision.







