Every PCAOB inspection report on every registered audit firm — 4,292 inspections covering 1,779 firms globally. Each report includes the firm's Part I.A deficiency rate (the audit-quality score), how many audits were reviewed, how many had deficiencies, whether the report includes public quality-control criticisms, and a link to the underlying PDF report. Big Four (PwC, Deloitte, EY, KPMG) are inspected annually; smaller firms triennially. The dataset exposes which audit firms have systematic quality problems and which engagement teams the PCAOB targeted via risk-based vs. random selection.
The listed URL identifies a referenced source; it does not by itself document the ingestion endpoint. Referenced source URL: https://pcaobus.org/oversight/inspections/firm-inspection-reports. PCAOB source material retains its terms; MORVS does not relicense it. Free or keyless access does not alter source terms. Metadata and normalization authored by MORVS (AI Analytics LLC) are CC0 only where expressly stated.