How suppliers are listed

The problem we solve

Generic B2B platforms (Alibaba, Made-in-China, Global Sources) list hundreds of "suppliers" per product category, the majority of whom are trading companies — sales offices that don't manufacture anything but resell from various factories. Buyers can't tell which listings are real factories and which are middlemen, so they end up paying trading-company markups and getting inconsistent product.

How suppliers get into this directory

Every supplier listed on PartzealHQ was compiled from public B2B marketplace listings — primarily Made-in-China.com and Alibaba.com. We collected the company name, location, product categories and stated capabilities from those public pages. We did not contact these companies, and they did not apply to be listed.

What the ✓ mark means

A ✓ next to a supplier name means one thing only: we located an independent company website for that supplier — a site of their own, not a storefront page on a marketplace — so that you can check the company yourself. It is not an audit, an endorsement, or a quality signal. As of August 2026, 34 of the 183 suppliers in this directory meet that bar.

What we have not done

We have not audited any factory. We have not conducted video walkthroughs or site visits. We have not contacted reference customers. We have not obtained or checked certificate originals. Any supplier page that shows certifications is repeating what that company states on its own public listing — we have not verified those claims.

Treat this directory as a starting point, not a shortlist. Before placing an order, request the factory's business license and quality certification directly, order a pre-production sample, and consider third-party pre-shipment inspection (SGS, BV, Intertek) for orders over $20K.

What verification is NOT

Important disclaimers:

• A ✓ is not a quality guarantee. It says we found the company's own website — nothing about what comes off their production line. Always sample-test before production volume orders and consider third-party pre-shipment inspection (SGS, BV, Intertek) for orders over $20K.
• A ✓ is point-in-time. We recorded the website when the listing was compiled. We do not re-check it on a schedule, and we do not monitor whether the company is still operating.
• A ✓ says nothing about commercial fit. Suppliers may refuse to quote if your volume is too small, prices may not match your target, lead times may not meet your deadlines. We have not assessed any supplier's capability.

If you have a complaint

If you've worked with a PartzealHQ-listed supplier and the relationship has gone wrong — quality issues, payment disputes, supplier non-responsiveness — please email trust@partzeal.com. We investigate every complaint and adjust supplier listings (or remove them) based on credible evidence. Our verification process is only as good as our follow-up.