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Process6 min readMay 19, 2026

How We Vet Manufacturers in 5 Days

From thousands of factory candidates to a vetted shortlist of three — here's the exact process our Yiwu team runs every week before any client order touches a production line.

How We Vet Manufacturers in 5 Days

Most sourcing partners hand you a list of "approved" suppliers. We do the opposite: we start with thousands and ruthlessly cut down to three before we ever say a name.

Day 1 — Database filtering

Our internal manufacturer database tracks 150+ vetted factories across electronics, textiles, hardware, and consumer goods. Each one has a profile with:

  • Categories served and minimum order quantities
  • Lead times for sample and production runs
  • Past performance: on-time %, defect rate, response time
  • Last audit date and key findings
  • Active client engagements (so we know capacity)

We start by filtering this database against your brief. A typical query: "category = wireless audio, MOQ ≤ 1k, lead time ≤ 45 days, defect rate < 2%". That usually gives us 8–15 candidates.

Day 2 — Phone screening

Our sourcing managers in Yiwu call each candidate. The goal isn't to ask the polished questions on their website — it's to ask the awkward ones:

"What's the longest production delay you've had this quarter, and why?" "Can you walk me through what happens when 5% of a batch fails QC?" "Who's your biggest US customer right now?"

Factories that dodge these questions get cut. Usually we lose half the list at this stage.

Day 3 — On-site visits

Our team drives to every remaining factory within 24 hours. We don't announce ourselves. We check:

  • Are workers using PPE correctly?
  • Is the QC station staffed during normal production?
  • Is the inventory of finished goods well-organized or chaotic?
  • Does the factory floor smell of fumes, suggesting compliance gaps?

We take 50–80 photos per visit and produce a one-page assessment.

Day 4 — Sample requests

Survivors get a sample order — usually 5–10 units of your exact spec. We pay for this; you don't. Samples ship to our office in Yiwu where we:

  1. Photograph each unit from multiple angles
  2. Test fit, finish, function against your spec sheet
  3. Document any deviation, even cosmetic

Day 5 — The shortlist

You get a one-page report with three options ranked by fit, plus a "why we cut the others" appendix so you can see the trade-offs.

By the time you make a decision, we've already removed 96% of the noise.

That's why first-time clients tell us they spent six months trying to find a factory before — and we hand them a viable shortlist in a week.

Need help sourcing your next product?

Our team responds with factory options within 5 hours. No DB call, just real humans on the ground in Yiwu.

Talk to a sourcing manager

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