[ 215 labs indexed · 9 assays · US / CA / GB +7 ]
The reference index for
cannabis analytical testing
Search every accredited lab by the assays they actually hold scope for. Compare turnaround and accreditation. Send one brief, get quotes back.
Labs indexed
215
Holding accreditation
141
Assays tracked
9
Offer pickup
18
[ Reference data ]
Browse by test
Every assay a compliance panel might ask for, and which labs run it.
01 · Potency
194 labs
Cannabinoid Potency
Quantifies THC, CBD and minor cannabinoids. Required on every compliance panel and on the label of any product sold at retail.
90% OF INDEX
02 · Terpenes
190 labs
Terpene Profile
Identifies and quantifies the aromatic compounds that drive strain character. Usually optional for compliance, but a major marketing input.
88% OF INDEX
03 · Pesticides
191 labs
Pesticide Residue
Screens for regulated pesticide residues at parts-per-billion levels. A failure here is the most common cause of a batch being destroyed.
89% OF INDEX
04 · Mycotoxins
167 labs
Mycotoxins
Detects aflatoxins and ochratoxin A produced by mould. Mandatory in most regulated markets because the toxins survive processing.
78% OF INDEX
05 · Heavy metals
181 labs
Heavy Metals
Measures lead, arsenic, cadmium and mercury. Cannabis is a hyperaccumulator, so contaminated soil shows up in the finished product.
84% OF INDEX
06 · Microbials
193 labs
Microbial Contaminants
Screens for total yeast and mould, coliforms, E. coli, salmonella and Aspergillus species. Required before any product reaches a patient.
90% OF INDEX
07 · Residual solvents
183 labs
Residual Solvents
Confirms that butane, ethanol, propane and other extraction solvents have been purged below action limits. Applies to concentrates and vapes.
85% OF INDEX
08 · Moisture / Aw
131 labs
Moisture & Water Activity
Water activity above roughly 0.65 Aw lets mould grow in the package. Cheap to run and the single best predictor of shelf-life failure.
61% OF INDEX
09 · Stability
37 labs
Stability & Shelf Life
Repeat testing across a storage window to establish an expiry date and prove potency claims hold over time.
17% OF INDEX
Browse by location
48 regions · sorted by count- California43
- Ontario20
- Oklahoma15
- Washington13
- Colorado11
- Michigan11
- British Columbia11
- Nevada9
- Missouri8
- Quebec7
- Oregon6
- Florida4
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Latest guides
All guides- 01
Cannabis Lab 101: Cannabis Testing Instruments — HPLC, GC-MS, ICP-MS, and What Each One Is For
I spent four-plus years running compliance assays on a bench, and the question I heard most from new techs was simple: which box does which test? This walkthrough covers every major instrument class in a cannabis testing lab — what it detects, why it was chosen for that assay, and the one mistake buyers keep making.
- 02
Cannabis Lab 101: The Cannabis Testing Market in 2026 — Who Tests What, and What It Costs
I spent four years on the bench watching growers squint at invoices and ask why a flower panel costs $600. This article breaks down who is licensed to test cannabis, what analytes every compliance panel must cover, what real labs charge per test, and why a single national market-size number is harder to find than it looks.
- 03
Cannabis Lab 101: How to Become a Weed Tester — What the Job Actually Is
I spent four years on the bench in licensed cannabis testing labs, and the number-one question I get is whether 'weed tester' is a real job. It is — but nobody is paying you to smoke. Here is what the actual roles look like, what instruments you will run, and how to get hired.
One brief. Every lab that fits.
Name the assays and sample type once. It routes to the labs holding scope for it — no account, no fee.