About this directory

Independent. Evidence-graded. Free listings, always.

Finding a supplement manufacturer usually means sponsored listicles and sales calls. This directory exists to fix that: every listing shows what is actually verified (registry listings, maker-hosted documents) versus what is merely claimed — so buyers can shortlist with eyes open.

How listings work

Each maker gets a verification status (Registry-listed, Documented, Reported, Unverified) plus an evidence level (Strong, Moderate, Limited).
We grade the paper trail behind the record, not the facility. A great maker with thin documentation scores lower than an average one that publishes everything.
Listings are never for sale and scores are never for sale. Full methodology here.

For makers

Is this your company? Claim or correct your listing — free, human-reviewed.
Not listed yet? Get listed — same process, same price (free).
Found an error? Send proof links and we re-check against your site and the registries.

Contact

Everything — corrections, listing requests, quote help, feedback, partnerships — goes to one inbox:
hello@supplementmanufacturers.net

For quote requests with your format, MOQ and timeline, use the quote form so nothing gets missed. For listing submissions, start here.

SupplementManufacturers.net is run by the same team behind PeptideSuppliers.tech, a directory of peptide manufacturers and suppliers.