Our labs are located at 1375 Van Dyke Avenue, in the Bayview District of San Francisco.  We can easily be reached by car via highway 101 or by the Muni’s T-line. Additionally we have an office at 2233 Jesse Street in the city of Los Angeles. For more information, including directions, please visit our Contact Page.

Anresco Laboratories is an analytical testing laboratory and thus does not cultivate, produce, process, distribute or sell cannabis or any cannabis-related products.


Anresco tests raw flowers, plant material, concentrates/extracts, infused products, and almost anything else cannabis-related.

For cannabis testing, we offer the following services:

  • Potency profiling
  • Terpene profiling
  • Microbiological testing
  • Pesticide residue screening
  • Residual solvent testing
  • Heavy metals screening
  • Homogeneity testing
  • Nutritional labelling
  • Shelf life studies
  • Other chemical analyses (vitamins, minerals, color additives, etc.)

We test for 8 cannabinoids including THC (8 & 9), THCA, CBD, CBDA, CBN, CBC, and CBG.

Anresco performs Standard Plate Counts (aka Aerobic Plate Counts), Yeast and Mold Counts, as well as additional pathogenic tests for Coliform/E.coli, Salmonella, Aspergillus, Listeria, and Pseudomonas.

Anresco Laboratories can test for all 20 of the residual solvents required by the State of California for Phase I and Phase II of compliance testing , which include:

1,2-Dichloroethane, Acetone, Acetonitrile, Benzene, Butane, Chloroform, Ethanol, Ethyl Acetate, Ethyl Ether, Ethylene Oxide, Heptane, Hexane, Isopropyl Alcohol, Methanol, Methylene Chloride, Pentane, Propane, Toluene, Xylenes (ortho-, meta-, para-), Trichloroethylene

Anresco currently screens for up to 382 pesticides, depending on the sample matrix. This includes all of the pesticides required by the California Bureau of Cannabis Control.  Contact us for the full list!

For cannabis products, our typical TAT is 5-business days (not including weekends or holidays). We offer expedited testing for an additional surcharge.


Dispensary operators, cultivators, physicians, processors, and CA medical cannabis patients may submit samples for testing.

Of course! We have developed a proprietary client portal to allow easy access to your reports 24/7/365.

To begin the testing process, please reach out via this online form or call 415-822-1100 to speak to a customer service representative.