How to Vet Suppliers Before Placing Orders?

Martin Signer answers:

Vetting suppliers properly before committing money is one of the highest-leverage things you can do in your business. Here's a systematic process that covers every layer of risk.

The 5-Layer Vetting Framework

Think of supplier vetting as five concentric circles — each layer filters out more risk.

Layer 1: Desk Research (Before Any Contact)

Do this before spending a minute talking to them.

Business verification:

• Search their company name + "scam," "fraud," "complaint," and "review"
• Verify legal registration via public registries (in Switzerland: zefix.ch; Germany: handelsregister.de; for international: Dun & Bradstreet)
• Check how long the company has existed — under 2 years warrants extra caution
• Verify their physical address exists via Google Street View
• On Alibaba/Global Sources: check transaction volume, response rate, and years active on platform

Online footprint check:

• Do they have a professional website with real contact details?
• Are there genuine reviews on Google, Trustpilot, or industry forums?
• Is their LinkedIn presence real — do employees actually list them as an employer?
• Search their key personnel on LinkedIn — do they have credible histories?

Layer 2: Direct Qualification (First Contact)

How a supplier communicates in the first interaction tells you most of what you need to know.

Send a structured RFQ (Request for Quotation) that includes:

• Detailed product specifications
• Target volumes (initial and projected 12-month)
• Required certifications (CE, ISO, food safety, etc.)
• Requested payment terms
• Required lead times

Evaluate their response on:

• Speed (under 24 hours is good, under 4 hours is excellent)
• Specificity (do they answer your actual questions or send a generic brochure?)
• Language quality and professionalism
• Whether they ask intelligent clarifying questions about your needs
• Transparency about what they can and cannot do

Layer 3: Documentation Review

Request and verify these documents before placing any order:

Critical step: verify certifications directly with the issuing body — forged certificates are common with overseas suppliers.

Layer 4: Reference Checks

Most buyers skip this. Almost none of your competitors do. It's one of the highest signal activities in the entire process.

How to run a reference check:

• Request 3 references from clients in a similar product category to yours
• Contact them directly — don't let the supplier facilitate the call
• Ask specific questions, not general ones

Questions that reveal the most:

• What was their on-time delivery rate over the past 12 months?
• Describe a quality problem you had and how they resolved it
• How do they communicate when something goes wrong?
• Would you increase your order volume with them — and why or why not?
• What do you wish you'd known before starting with them?

One honest reference conversation is worth more than any document they send you.

Layer 5: Physical Verification

For any meaningful supplier relationship, this layer is non-negotiable.

Option A — Third-Party Factory Audit
The gold standard for international suppliers. Cost: USD 300–800 per audit.

Reputable auditing firms:

• SGS — Global leader, offices in Switzerland
• Bureau Veritas — Strong European presence
• Intertek — Good for consumer goods and electronics
• QIMA — More affordable, tech-forward, good for Asian suppliers

A standard audit covers: facility conditions, production capacity, workforce practices, quality control processes, documentation systems, and health and safety compliance.

Option B — Video Factory Tour
If a full audit isn't feasible initially, request a live unscripted video walkthrough. Ask them to show you: raw material storage, production floor, QC station, and finished goods warehouse. A legitimate supplier will do this without hesitation.

Option C — In-Person Visit
For high-volume or long-term relationships, visiting in person is the most powerful vetting tool available. You observe things no document or video captures — staff morale, facility organization, how they treat a visiting client.

The Trial Order Protocol

Even after passing all five layers, always structure your first order this way:

Phase 1 — Sample order

• Request samples from actual production stock, not custom-made showcase samples
• Test against your full specification list
• Check packaging, labeling, and documentation accuracy
• Assess lead time accuracy: did samples arrive when promised?

Phase 2 — Small pilot order

• Order the minimum viable quantity
• Inspect on arrival: use the AQL (Acceptable Quality Level) sampling standard
• Document everything — photos, measurements, defect rates
• Note communication quality throughout production

Phase 3 — Scale only after two clean orders
Don't ramp volume until you have at least two successful orders with consistent quality and communication.

Pre-Order Checklist

Before transferring any money, confirm all of the following:

• Business registration verified independently
• Key certifications verified with issuing body
• Minimum two references checked directly
• Factory audit or video walkthrough completed
• Written contract or purchase order signed
• NDA signed before sharing product specs
• Payment via secure method (Trade Assurance, Letter of Credit, or escrow)
• No more than 30–40% paid upfront
• Quality specifications documented in writing
• Defect and dispute resolution process agreed in writing
• Delivery timeline and penalty clauses confirmed

Payment Protection by Risk Level

Never pay 100% upfront to a new supplier under any circumstances.

The One Question That Reveals the Most

After all your research, ask the supplier directly: "Describe a situation where you made a mistake with a client's order and how you handled it."

A supplier who answers honestly and specifically — with a real example and a clear resolution — is demonstrating exactly the kind of accountability you want in a long-term partner. A supplier who claims mistakes never happen, or deflects with vague assurances, is telling you something important.