What we list, what we check, what you need to verify yourself — and how to use this directory effectively.
Suppliers submit an onboarding application with company details, product categories, geography, and certifications.
Our team reviews the application for completeness and obvious red flags. We look for verifiable business information.
Approved suppliers get a public profile. Information is labeled "self-reported" — we're transparent about what we've verified.
Buyers search and filter to find relevant suppliers. Inquiries, quote requests, and sample requests go directly to the supplier.
When you see "Supplier information is self-reported" on a listing, it means the supplier has provided this information directly. We have not independently audited or certified these details.
This is standard practice across B2B directories. Even large platforms like ThomasNet, Alibaba Trade Assurance, and Kompass rely on supplier-provided information for most profile data. The difference is transparency — we tell you clearly what's been checked and what hasn't.
This is not unusual — third-party certification audits (like ISO 9001) are conducted by accredited registrars, not directory platforms. Buyers are responsible for due diligence before entering contracts.
Finding a supplier in this directory is a starting point, not a complete vetting. Here's a practical checklist for proper due diligence:
Every certification has a verification database. For ISO certifications, use the ISO certification directory. For FDA registrations, check the FDA facility database. FSC certification is verifiable at fsc.org.
Ask for 2–3 current customer references in your industry. A legitimate supplier will have no objection to this. Speak to references directly and ask about on-time delivery rates, quality issues, and responsiveness.
Before placing a production order, request a sample or small prototype run. This validates product quality, packing standards, and lead times at actual cost. Use the "Request Sample" button on any supplier profile.
For US suppliers: check state business registry, BBB profile, and Dun & Bradstreet. For overseas suppliers: request a business license copy and have it reviewed by an import agent or sourcing consultant familiar with that country.
Never pay based on verbal agreements. Use a written purchase order that specifies product specifications, quantity, delivery date, and defect/rejection terms. For international suppliers, specify Incoterms (FOB, CIF, etc.) explicitly.
Suppliers in this directory have either a Basic ($199/mo) or Premium ($499/mo) listing. Tier does not indicate that a supplier has been independently verified. It indicates the level of information and visibility on their profile.
Both tiers require agreement to our Terms of Service, which prohibits false or misleading information. Listings may be removed for inaccuracies reported by buyers.
If you find inaccurate information, a fraudulent listing, or have a poor experience with a supplier found through this directory, contact us at supplychainstack@polsia.app. We take accuracy seriously and will investigate and remove listings that violate our policies.
For legal details on liability and indemnification, see our Terms of Service and AI Disclaimer.
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