How we research

Ecommerce Fulfillment Centers explains how ecommerce 3PLs compare. Every page answers one specific question, states the answer first, and shows how we got there.

• Providers' own published information: pricing pages, service terms, warehouse locations and integration lists. We link the source next to the claim.
• Public records and industry data where they exist.
• Rate data shared by brands. Where brands share their actual 3PL quotes or invoices with us, we use them only anonymized and in aggregate, and only with permission.
• Operator experience. Some guides draw on first-hand experience running fulfillment for consumer brands. When a page relies on it, the page says so.

Some shortlists mark one provider as an Editor's pick. That reflects first-hand experience working with the provider as a customer, including comparing its shipping rates against quotes from other 3PLs. It is not a paid placement.

An Editor's pick is only given where the provider fits the use case. It sits alongside the same facts as every other pick: published terms, limitations, and public reviews.

• We don't publish star ratings or scores we can't back up.
• We don't claim to have tested a warehouse we haven't worked with.
• We don't accept payment to rank a provider, and a provider can't pay to be included or to have a page changed.

Every page shows the date it was last updated. We review provider facts on a regular cycle and when a provider changes its pricing, locations or terms. If you spot something out of date, the correction goes in and the date changes.