AppZen is a software company that provides AI-powered auditing and compliance services for businesses. The company's platform uses artificial intelligence to analyze financial transactions and automatically identify errors, fraud, and compliance issues. AppZen's software can be integrated with a variety of accounting and expense management systems, and is used by companies in a range of industries, including healthcare, retail, and technology. The company was founded in 2012 and is headquartered in San Mateo, California.