Supplier fraud and quality failures cost importers billions every year. Yet most disasters are preventable with proper verification. This guide covers the layered checks that separate reliable manufacturing partners from costly mistakes — from quick desk research to on-site inspection.

The one-hour desk check

Before spending money on audits, run these free checks — they catch a surprising share of problem suppliers in under an hour:

  • Search the exact company name plus "scam", "fraud" or "complaint" in English and the local language.
  • Check the website domain age — a "15-year-old factory" with a domain registered last year deserves questions.
  • Cross-check the address on satellite and street-view maps. Does the location look like a factory, an office tower, or an apartment block?
  • Compare contact details across the website, marketplace profiles and email signatures — inconsistencies are a warning sign.
  • Look at the email domain — established manufacturers usually use a company domain, not only free webmail.
  • Reverse-image-search factory photos — stolen images from other factories' websites are a classic fake-supplier tell.

None of these checks is conclusive alone, but two or three red flags together tell you to walk away before any deposit is at risk.

Verify legal existence and registration

The first step is confirming the company legally exists and is who they claim to be. Every legitimate business has a registration number you can verify against a government registry — China's National Enterprise Credit Information system, India's Ministry of Corporate Affairs, the EU business registers, and so on.

Check that the registered company name matches what appears on quotes and bank details, that the business scope covers what they're selling you, and that the registered capital and age of the company are consistent with the scale of business they claim. A company registered three months ago claiming a large factory is a red flag.

Confirm manufacturing capability

A trading company posing as a manufacturer is a common (and not always disastrous) situation — but you should know which you're dealing with. Ask for factory photos and videos, production capacity figures, equipment lists, and the number of employees and production lines. Request a video call walkthrough of the actual production floor.

For significant orders, commission a third-party factory audit. Inspection companies (SGS, Bureau Veritas, Intertek, TÜV) will visit the facility and report on its real capabilities, quality systems and working conditions — typically for a few hundred dollars, a tiny fraction of a bad order.

Validate certifications

Suppliers routinely claim certifications they don't hold, or present expired or fraudulent certificates. Never take a certificate at face value. Verify the certificate number directly with the issuing body — ISO certificates can be checked with the certification body, CE marks against the EU NANDO database, and so on.

Be especially careful with safety-critical certifications (electrical safety, PPE, medical, children's products). Counterfeit certificates are common precisely where they matter most. A genuine certificate names the specific products and standards covered — beware vague or mismatched documentation.

Test samples rigorously

Order samples and test them against your exact specifications — ideally through independent lab testing for any measurable parameters (material composition, dimensions, performance, safety). Be aware that some suppliers send a high-quality "golden sample" that doesn't represent mass production. Mitigate this by ordering samples from regular stock where possible, and by conducting pre-shipment inspection on the actual production batch.

Use secure payment terms

Payment structure is your strongest protection. Avoid 100% advance payment to a new supplier. Standard practice is a deposit (commonly 30%) with the balance paid after a satisfactory pre-shipment inspection. For larger orders, a Letter of Credit ties payment to documentary proof of shipment. Trade assurance and escrow services hold funds until you confirm satisfactory delivery.

Always pay to a company bank account that matches the registered company name — never to a personal account or a third country. Requests to change bank details mid-transaction are a hallmark of email-interception fraud; verify any such change by phone with a known contact.

Match verification depth to order size

Verification costs time and money, so scale it to what's at stake:

  • Small trial orders (under ~$2,000) — the desk check, registry confirmation and a video call are usually sufficient. Your main protection is keeping the order small.
  • Meaningful orders ($2,000–$20,000) — add document review (licence, certifications, export record), reference checks, rigorous sample testing and a pre-shipment inspection (typically ~$300).
  • Large or ongoing commitments ($20,000+) — commission a third-party factory audit ($300–$1,500), use a contract reviewed by someone familiar with local law, structure payment around inspection milestones, and consider visiting in person.

The common thread: never let your exposure exceed what your verification level justifies. Increase both together as the relationship proves itself.

Suppliers.PRO's tiered verification system does much of this groundwork for you — from email and registry checks to document review and optional on-site inspection — surfacing the results as transparent badges on each profile.