Methodology · version 2.3

One standard. Applied identically to every company.

The plumbline does not move. Only the measurement changes. This page states the standard in full, including how the Accountability Index is calculated and how it may be audited.

  1. 01Evidence before opinion.
  2. 02Every company is measured using the same standard.
  3. 03AI assists research but never publishes.
  4. 04Every published statement links to supporting evidence.
  5. 05Allegations are never presented as established fact.
  6. 06Companies may respond.
  7. 07Corrections are encouraged.
  8. 08Methodology versions remain public forever.

The Accountability Index is not a morality score

Plumbline publishes no judgment about whether a company is good or bad. The Accountability Index is a transparent measurement of what the public record contains, scored across seven categories. Each category begins at 100. Deductions are applied only where a documented event exists, and every deduction states its reason and links directly to the supporting evidence. Clicking any score opens the documentation behind it.

Categories measured

How deductions are weighted

Weighting follows status and finality, not severity of headline. A formal Regulatory Finding or a final Judgment carries the largest deduction. A Settlement carries a moderate deduction because it resolves a matter without a liability finding. An open investigation or a filed complaint carries a small deduction that reflects uncertainty. A Dismissed matter carries no deduction, and it is still documented so the record stays symmetrical. Deductions decay as remediation obligations are satisfied on the public record.

What can never affect a score

Legal and transparency notices

Version history

Methodology versions remain public forever. Every company profile records the methodology version under which it was last measured.