The Big Four accounting firms are reportedly being probed by the SEC

• The Securities and Exchange Commission is probing the Big Four accounting firms, per $4.
• The Big Four accounting firms are Deloitte, EY, PwC, and KPMG.

The US Securities and Exchange Commission is probing potential conflicts of interest within the Big Four accounting firms, $4 reported on Tuesday.

The Big Four refers to a quartet of powerful accounting firms: Deloitte, Ernst & Young, or EY, PricewaterhouseCoopers, or PwC, and Klynveld Peat Marwick Goerdeler, or KPMG.

According to the Journal, the regulator's probe centers around whether the four firms' "non-audit services" conflict with their independence when reviewing public company's financials.

The newspaper reported the SEC's Miami office is investigating rule violations by the Big Four, as well as a number of smaller firms.

Spokespeople for the SEC, Deloitte, EY, PwC, and KPMG did not immediately respond to Insider's request for comment.

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