Investor protection lies at the heart of the PCAOB’s statutory mission. We accomplish that mission by promoting high-quality audits through our standard-setting, inspections, and enforcement programs. As part of our mission, we also aim to provide relevant information to investors and to engage with them on PCAOB activities that may be of interest.  

China-Related Access Challenges

The portfolios of U.S. investors have become increasingly exposed to companies that are based in foreign jurisdictions or that have significant operations in non-U.S. markets, including in China. The PCAOB provides investors and potential investors with information related to access challenges in certain countries as well as a list of public companies whose PCAOB-registered auditor is located in a jurisdiction where obstacles to PCAOB inspections exist. 

Data About Our China-Related Access Challenges

Audit Reports Issued by PCAOB-Registered Firms Located Where Authorities Deny Access to Conduct Inspections

Investor Advisory Group

The Investor Advisory Group has been established by the PCAOB to advise on matters concerning the PCAOB's mission, including investors' perspectives on key areas of concern and potential emerging issues related to the PCAOB's oversight activities.

Investor Advisory Group


Through AuditorSearch, investors may access the names of engagement partners and other accounting firms participating in audits of U.S. public companies by searching the database or downloading the entire data set.

Explore AuditorSearch

Reading PCAOB Inspection Reports

The PCAOB issued the guide to further detail the key changes to the report and assist stakeholders in reading the inspection report.

Guide to Reading the PCAOB's Inspection Report


Recent Updates

Dec. 6, 2022

Imposing $7.7 million in fines, the PCAOB sanctions three firms and four individuals from KPMG global network.

Nov. 30, 2022

The PCAOB launches the Technology Innovation Alliance Working Group.

About the PCAOB