Evidence, not inference

Blank space is part of the map.

We do not infer a headquarters from a company name, domain ending, legal-form suffix, or regional office. If a location is not publicly sourced, the organisation stays off the map until it can be proven.

Capability evidence

What the capability states mean

Each check records the strongest conclusion yellow3 could establish from public sources on the date shown. These are evidence states, not capability ratings.

Public evidence found means the evidence reviewed supports the check.

Company states means the supplier states the capability publicly, but the supporting material did not establish the check to yellow3’s evidence standard.

No public evidence found by yellow3 means the review did not establish relevant public evidence in the sources inspected. It is not a finding that the supplier lacks the capability.

How the research is produced

Researched by agents. Reviewed by a human.

The research in this register is produced by AI agents under human supervision and review, in batches. A human defines the research questions and evidence rules, reviews material findings and remains accountable for every published record.

When a correction is supported by public evidence, yellow3 reviews the finding, updates the record and preserves the source and date so the change can be inspected.

Our interest, declared

We work in this market. You should know that before relying on our research.

yellow3 lab participates commercially in the market this register catalogues. We sell buyer-side Digital Product Passport services and operate the Digital Product Passport Buyer Platform, which uses evidence from this register to help buyers evaluate and select suppliers.

Suppliers cannot pay to appear, rank, receive faster assessment or change a finding. There are no sponsored placements or paid findings.

Buyers pay yellow3 for research and support with their own procurement decisions. That work does not alter the register’s evidence standard or any published finding.

We do not operate Digital Product Passports. We do not host, issue, resolve, maintain or publish them. The suppliers in this register do that.

Every finding carries a source and a date, so readers can inspect the evidence, challenge the conclusion and request a correction.

Corrections

Tell us what we got wrong.

Every finding here is a dated statement about published evidence, and every one of them can be wrong: a source we did not reach, a page that changed, a judgement we made badly. Corrections are free, they are never a commercial conversation, and you do not need to claim a profile to send one.

Send the supplier, the check or field, and a public URL with the sentence on that page that supports it. That is the same standard we hold ourselves to, and it is the only thing that lets us act on a correction the same day. Send a correction →