What Anresco Laboratories does

Anresco Laboratories is a family-owned analytical testing laboratory founded in 1943 by Dr. Sylvan Eisenberg in San Francisco, now in its third generation of Eisenberg family leadership (David Eisenberg as President/CEO, Zachary Eisenberg as VP/COO, Amanda Eisenberg as CMO). The firm provides ISO/IEC 17025-accredited testing services to regulated-product manufacturers and importers across five principal service lines — food testing, dietary supplements, cannabis and hemp, kratom, and FDA import detention — using instrumental analytical platforms including HPLC-DAD, LC-MS/MS, GC-MS/MS, ICP-MS, Atomic Absorption Spectroscopy, ELISA, and microscopy. Proprietary methodology includes both Luke and QuEChERS multi-residue pesticide analyses capable of detecting approximately 300 compounds at ~0.01 ppm, USP-compliant supplement testing under chapters <561>, <461>, <61>/<62>, California Prop 65 screening, and Japanese MHLW testing with LOQs set at half the regulatory action limits. Differentiating capabilities also include FDA DWPE import clearance work, state-specific hemp panels (CA, CO, FL, GA, KY, LA, TN, TX, Japan), and medical device / PPE conformity testing.

The company operates five laboratory locations — San Francisco (HQ), Commerce CA, Middlesex NJ, Fort Lauderdale FL, and Tokyo — with revenue earned primarily through transactional per-test pricing (e.g., $75–$850 per panel) on standard 10-business-day turnarounds, supplemented by food safety consulting led by Dr. Nari Nayini. Distribution runs through enterprise field sales targeting manufacturers, importers, and cannabis/hemp operators, complemented by inside sales, California-wide sample pickup, mail-in, and a self-serve client portal providing 24/7 results access and order management. Ancillary revenue comes from wholly-owned subsidiary Micro-Tracers (analytical tracers for animal feeds) and the jointly-controlled Anresco NJ Labs network formed via the October 2025 merger with NJ Labs. Accreditations include ISO/IEC 17025:2017, FDA LAAF, DEA Schedule I–IV, DCC, CDFA, GDA, NM Environment Department, TABC, and Japanese MHLW. Customer concentration is naturally diversified across food manufacturers, dietary supplement producers, cannabis and hemp operators, and FDA-import-detained food importers, with no single customer disclosed.

Name

Anresco Laboratories

Legal name

Anresco Inc.

Website

https://anresco.com

Company type

Private

Founded year

1943

Operating status

Operating

Headcount range

11–50 employees

Short description

Anresco Laboratories is a family-owned analytical testing laboratory founded in 1943, providing ISO 17025-accredited food, dietary supplement, cannabis, hemp, kratom, and FDA import detention testing across five U.S. and Japan locations for regulated-product manufacturers and importers.

Ownership category

akta.pro rank

Product category

Analytical Testing Services

NAICS

Testing Laboratories and Services (541380)

SIC

Services-Testing Laboratories (8734)

akta.pro primary industry

Food Testing Laboratories (Microbiological, Chemical, Allergen) (AFALAAAA)

Keywords

• Analytical testing services
• Food safety testing
• Cannabis compliance testing
• Pesticide residue analysis
• Dietary supplement testing

Headquarters

HQ city

San Francisco

HQ country

United States

HQ region

North America

Offices5 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Technology or R&D, Infrastructure, Operations, Marketing or Sales

Revenue model

1. Analytical Testing Services: Laboratory testing services for food, dietary supplements, cannabis, hemp, and Kratom industries. Services include nutritional labeling, shelf life testing, allergen testing, chemistry, heavy metals, microbiological testing, pesticide residue screening, Prop 65 testing, and more. Revenue is transaction-based per test with standard turnaround times of 10 business days for most analyses.
2. Food Safety Consulting: Consultancy services to assist clients evaluate and validate key aspects of their food safety systems including HACCP Plan Validation, Crisis Management, Food Safety Training, and Risk Management. Services headed by Dr. Nari Nayini, PhD.

Pricing tiers

Go-to-market motion3 records

Distribution channels3 records

Marketing channels4 records

Core offering

Anresco Laboratories is an independent, family-owned analytical testing laboratory providing comprehensive testing services for food, dietary supplements, cannabis, hemp, kratom, FDA import detentions, adaptogens, and medical devices. Services span microbiology, chemistry, chromatography, and microscopy disciplines using FDA, USDA, AOAC, and USP approved methods, delivered under ISO/IEC 17025:2017, FDA LAAF, DEA, DCC, and Japanese MHLW accreditations. Revenue is generated per-sample/per-test with standard 10 business day turnaround and complementary food safety consulting services.

Product overview

Anresco Laboratories is a family-owned analytical testing laboratory founded in 1943, providing comprehensive testing services primarily for the food, dietary supplement, cannabis, hemp, and related regulated industries. The company operates a platform-plus-services model offering a unified laboratory testing platform with distinct service lines spanning Food Testing (nutritional labeling, shelf life, allergens, chemistry, heavy metals, microbiology, microscopy, pesticide residue, Prop 65, food safety consulting), Dietary Supplement Testing, Cannabis Testing (R&D and compliance), Hemp Testing (with state-specific panels for California, Colorado, Florida, Georgia, Kentucky, Louisiana, Tennessee, Texas, and Japan), Kratom Testing (with Oregon and Utah compliance), FDA Import Detention Testing, Adaptogen Testing, and Medical Device Testing. The company also provides a proprietary client portal for result access, order management, and reporting. Testing methodologies follow FDA, USDA, AOAC, USP, and ISO 17025 standards across microbiology, chemistry, chromatography, and microscopy disciplines.

Differentiator

Problem solved

Functional benefit

Quantifiable outcome

• Pesticide detection limit of approximately 0.01ppm using QuEChERS LC-MS/MS and GC-MS/MS method
• +1 more outcomes

Named customers2 records

Segments5 records

Ideal customer profiles6 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

One partnership is on record.

• NJ LabscoreStrategic or Co-development Partner · 20 October 2025Anresco Laboratories and NJ Labs merged to form 'Anresco NJ Labs', creating a nationwide testing network. The partnership combines nearly two centuries of expertise to provide faster, consistent, and transparent testing solutions under strict regulatory standards across multiple regulated industries.

Scale indicators5 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Mérieux NutriSciences: Dedicated food testing and sensory evaluation network operating across North America. Closely comparable to Anresco's food microbiology, chemistry, shelf life, and labeling services for manufacturers and retailers.
• Kaycha Labs: Multi-state cannabis and hemp testing laboratory network. Comparable to Anresco's hemp and cannabis compliance testing across multiple state regulatory frameworks.
• SC Labs: California-licensed cannabis testing laboratory offering cannabinoid, terpene, pesticide, and contaminant panels. Direct peer to Anresco's cannabis compliance and R&D testing services in California.
• NJ Labs: Independent analytical testing laboratory that merged with Anresco in October 2025 to form Anresco NJ Labs. Direct counterpart with overlapping pharmaceutical and dietary supplement testing services.
• NSF International: Provides testing, certification, and auditing for food, dietary supplements, and consumer products. Comparable to Anresco in dietary supplement testing, Prop 65, contaminants, and regulatory compliance work.
• Infinite Chemical Analysis Labs: Cannabis testing laboratory serving licensed California operators with potency and contaminant testing. Comparable to Anresco's DCC compliance and R&D cannabis service lines.

Broad incumbents

• SGS SA: World's largest testing, inspection, and certification company with extensive food testing and agricultural services. Comparable to Anresco in food safety, pesticide, and microbiology testing for manufacturers and importers, with global scope.
• Eurofins Scientific: Global leader in food, feed, and environmental testing with a vast instrument network and broad regulatory accreditations. Directly comparable to Anresco across food microbiology, pesticide residues, and nutritional labeling, but operates at vastly larger scale and breadth.
• Intertek: Global quality assurance provider with extensive food and agricultural testing services. Comparable to Anresco in pesticide residue, microbiology, and import detention testing for food manufacturers and importers.
• Bureau Veritas: Global TIC provider with a strong food and consumer products testing practice including pesticide residues, contaminants, and nutritional analysis. Comparable to Anresco in food and agricultural commodity testing for regulated markets.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• Xx.com/anrescolabs
• Facebookfacebook.com/anrescolabs
• LinkedInlinkedin.com/company/anrescolabs
• Instagraminstagram.com/anrescolabs

Compliance10 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles13 records

Subsidiaries2 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Anresco Laboratories