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.

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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: The Importance of Auditor Professional Responsibilities and Ethics

Auditor professional responsibilities and ethics form the basis for the conduct of an audit, which in turn impacts the trust that investors can place on the auditor’s opinion. This bulletin provides a brief overview of how auditor professional responsibilities and ethics are integral to public company auditing and discusses the role of the PCAOB in establishing and upholding auditor professional responsibilities and ethics.

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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Aug. 28, 2025

The PCAOB is postponing for one year, to December 15, 2026, the effective date of QC 1000, A Firm’s System of Quality Control, and other new and amended PCAOB standards, rules, and forms adopted by the Board on May 13, 2024.

Standards
Aug. 26, 2025

The PCAOB has launched the Smaller Firm Resource Group.

About the PCAOB