Ark Diagnostics, INC.
At a glance
EmployeesNot reported
In business sinceNot reported
HeadquartersFremont, CA
SAM.gov UEIYFBTQKJJ3MW7
Brands
Zopiclone
Adlm 2025
Ethyl Glucuronide IIThis company sells these brands.
The company designs, develops, and manufactures in vitro diagnostic immunoassays for therapeutic drug monitoring and urine drug testing. The assays use homogeneous enzyme immunoassay technology and are supplied as liquid, stable, ready-to-use products compatible with clinical chemistry systems. The company serves clinical laboratories monitoring epilepsy medications, cancer therapeutics, antibiotics, and antifungals, and holds CE Mark and FDA clearance for products in these categories.
Summarized from the company’s own website
What they make
Calibrators, Drug SpecificDrug Specific Control MaterialsEnzyme Immunoassay, AmphetamineEnzyme Immunoassay, CannabinoidsEnzyme Immunoassay, GentamicinEnzyme Immunoassay, MethadoneEnzyme Immunoassay, MethotrexateEnzyme Immunoassay, OpiatesEnzyme Immunoassay, Oxcarbazepine MetaboliteEnzyme Immunoassay, PhencyclidineGabapentin AssayImmunoassay, Anti-Seizure DrugLamotrigine AssayLevetiracetam AssayRadioimmunoassay, VancomycinTest, Benzodiazepine, Employment And Insurance Testing, ExemptTest, Opiates, Employment And Insurance Testing, ExemptTest Reagents For Ethyl AlcoholVoriconazole Test System
Their plant
| Facility | City | State | Employees | Status |
|---|---|---|---|---|
| Ark Diagnostics, INC. | Fremont | CA | — | ACTIVE |
Compiled from federal records — EPA, OSHA, SAM.gov and the U.S. Census — and from the company’s own website. Federal source data is public domain. Each plant’s page names the source of every field.

