Professional, certified drug testing and driver hiring services across California — results you can act on, fast.
Walk-ins welcome. All locations offer comprehensive drug testing, occupational health screenings, and DOT/non-DOT compliance services.
From drug testing to complete DQ file management, we've partnered with PrimeDQFiles.com to deliver a fully compliant driver onboarding experience — so you can hire with confidence.
Your one-stop solution for DOT driver qualification files, pre-employment screening, and ongoing compliance management. Trusted by carriers and owner-operators across California.
Join a recession-resistant, high-demand industry. We provide everything you need to launch and run a profitable drug testing clinic in your market.
Equipment, software, training, and protocols — fully set up and ready to open on day one.
Battle-tested workflows for drug testing, DOT compliance, and driver hiring services.
Drug testing is federally mandated for millions of workers. Demand stays strong in any economy.
Marketing, compliance updates, and expert operational guidance — you are never alone.
U.S. drug testing industry annual revenue
Federal mandates create a steady stream of required testing
Overhead compared to traditional medical businesses
All DrugTestingSites.com clinics operate on the NexaScreen platform — delivering certified, compliant, and accurate screening technology built specifically for modern drug testing operations.
Interested in running your own drug testing clinic on the NexaScreen platform? Whether you're an existing clinic looking to modernize or a new franchise getting started, NexaScreen has you covered.
Visit NexaScreen.comInterested in a franchise, driver hiring services, or clinic management software? Our team will reach out within one business day.