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TESTING LABS

Anresco Laboratories

San Francisco, CaliforniaReviewed Apr 6, 2026

Family-owned analytical testing company offering identity, potency, contaminant and microbiological testing.

LEAD TIME
Not publicly disclosed

Overview

Anresco Laboratories is a family-owned analytical testing company founded in 1943 in San Francisco, California, with over 82 years of experience. The company is ISO/IEC 17025:2017 accredited and recognized by the FDA. Anresco operates its headquarters and primary laboratory in San Francisco with branch offices in Los Angeles, New York, and Fort Lauderdale. In a recent strategic move, Anresco united with NJ Labs to form a nationwide testing network, expanding their geographic coverage. Their testing capabilities span food safety, cannabis compliance, and dietary supplement validation, including identity, potency, contaminant, and microbiological testing. Anresco was also an exhibitor at SupplySide Global 2025.

Certifications

0 of 1 certification independently confirmed. What this means

Capabilities

PRODUCT TYPES
Identity Testing · Potency Testing · Contaminant Screening · Microbiology Testing · Nutritional Labeling
CAPABILITIES
Identity testing · Potency or label-claim testing · Heavy metals, pesticides, allergens or other contaminants · Microbiology testing

Sources

What we couldn't verify

We did not visit this company on site. See the limits that apply to every listing.

  • ISO 17025 accreditation is self-reported; specific accreditation body not specified on Anresco's own website. Anresco is FDA recognized and CA ELAP certified (CA ELAP is administered through PJLA), suggesting a likely PJLA accreditation pathway, but no specific cert number was directly retrievable from accreditation body directories via public search as of audit date 2026-04-06.
  • Cannabis testing is a significant business line alongside supplements. Capacity allocation not disclosed
  • Amazon TIC status not assessed (Amazon publishes its approved-provider roster only inside Seller Central, which we cannot read)

Dietary supplement manufacturers must comply with 21 CFR Part 111 (cGMP). What Part 111 requires

Disclosures

  • Anresco recently united with NJ Labs to form a nationwide testing network

The connection map between Anresco Laboratories and other vendors, capabilities, and certifications is in the manufacturer atlas.

Enforcement screening: included in Inventory Ready's most recent completed pass against FDA's published recall datasets (2026-07-09). Method and limits →

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Educational information only. Not legal, regulatory, or professional advice. Inventory Ready provides independent assessments based on publicly available information. See Terms for details.