California’s Premier

Cannabis Testing
Anresco remains open.  

Results Available Wherever You Are

Anresco is the only cannabis laboratory that provides an app to access your portal account while on the go. View results, check order status, download reports, submit orders, view invoices, manage your account, and more — at your desk or on your phone


Virtual Tour of Our


Analytical Experts

Anresco employs some of the most experienced analytical chemists in the world. Our laboratory co-directors and section supervisors average over 25 years of experience in their respective fields of chemistry, chromatography, microbiology and microscopy.

Kiva Confections

Quality and safety is paramount for us here at Kiva Confections. We chose Anresco out of dozens of laboratories because of the reliability of their results, the professionalism of their analysts, and their flexibility with meeting our shifting deadlines. We elect for Anresco’s Pesticide Plus package, which includes more pesticides at lower limits of detection than any other cannabis testing lab in California. Anresco is a true partner to Kiva, and with their help we are able to produce the safest, most consistent and delicious cannabis infused products on the market.

Lonnette Alexander, Director of R&D and QA at Kiva Confections

Chris Emerson, Level Blends

I greatly appreciate working with Anresco Laboratories. They are defining the bar by which other analytical companies in the cannabis industry will be compared, due to their highly skilled scientific leadership, decades of experience in analytical testing, and willingness to go the extra mile for their customers. I very much look forward to continuing our relationship with Anresco.

Chris Emerson, Co-Founder of Level Blends

Eric Swanson, COO, Sunfed & Humboldt Finest Farms

Our Group has been using Anresco Laboratories for the past two years and have always been completely satisfied with their performance. They do an excellent job, are always punctual, and offer the most reliable results of any California cannabis testing laboratory. We have on occasion requested special parameters for testing, short cycle turn around, result verification amongst other non-schedule support needs and Anresco Laboratories staff has always jumped through hoops to accommodate and find solutions to our business needs. I could not be happier or more confident in a group, than what I am with Anresco Laboratories.

Eric Swanson, COO of Sunfed & Humboldt Finest Farms

John Malanca, United Patients Group

Safe, accurate and reliable testing is a must for all patients. Because of this we have awarded Anresco the United Patients Group coveted Seal of Approval as well as noted them as one of our Preferred Testing Labs.

John Malanca, CEO of United Patients Group

Memberships & Professional Affiliations


Once viewed merely as a marketing tool by many in the cannabis game, third party lab testing has now become an essential part of the marketplace as new research into the plant is revealing the potential health risks that could come along with cutting corners during the cultivation or manufacturing processes.


Anresco has moved into brand new laboratory facilities directly across the street from its old building. Stop by and check them out for yourself!

Anresco has moved into brand new laboratory facilities directly across the street from its old building. Stop by and check them out for yourself!