PCAOB Protects: Working Globally To Protect U.S. Investors


In a global economy, the work of protecting investors does not stop at U.S. borders. Visit www.pcaobus.org/international to learn more about how the PCAOB conducts its oversight internationally.

Watch more videos about how PCAOB protects investors

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.  

The Office of Investor Advocate

The Office of the Investor Advocate was established to help the PCAOB Board incorporate investors’ perspectives in the PCAOB regulatory agenda and enhance the PCAOB's engagement with investors and investor advocates.

Meet the Investor Advocate

Investor Bulletin: An Introduction to PCAOB Inspections

One of the most important ways that the PCAOB protects investors is through inspections of audit firms. In other words, PCAOB inspects the auditors. This bulletin introduces PCAOB inspections and provides links to key PCAOB resources that provide in-depth information about the inspection process.

Read the Bulletin

Investor Advisory Group

The Investor Advisory Group (IAG) 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

AuditorSearch

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

Recent Updates

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Dec. 4, 2025

The PCAOB has sanctioned a U.S. audit firm for violations that include failure to reasonably supervise an unregistered China-based public accounting firm.

Enforcement
Nov. 19, 2025

The PCAOB has entered into a cooperative arrangement with the Lithuanian audit regulator.

International