as the firm's chief executive officer. In August 2019, Brad Preber assumed CEO duties of the firm. As of 2019, Grant Thornton was the sixth largest accounting firm in the United States and had 59 offices with more than 550 partners and 7,000 employees. Its revenue for fiscal year 2018 was $1.7 billion. In March 2020, Grant Thornton LLP teamed up with GroupSense to offer digital crime mitigation technology. Operations Headquartered in Chicago, Grant Thornton LLP has three service lines: audit, tax, and advisory services. Specific advisory services and areas of expertise include: Sarbanes-Oxley compliance, mergers and acquisitions advice, tax, and business valuations. Target industries include construction, distribution, energy, financial services, food and beverage, healthcare, hospitality and restaurants, life sciences, manufacturing, not-for-profit organizations, private equity, public sector, real estate, retail, technology, and transportation. Services Grant Thornton offers three main service lines: Audit/Assurance: Provides not only the financial statement audits, but also uses professional tools and processes to conduct integrated audits required by SEC and under the Sarbanes-Oxley Act. Tax: Offers clients professional tax services including: federal, local and state, international tax advisory & compliance, compensation & benefits consulting, private wealth services, and tax accounting & risk advisory services. Advisory: services in business strategy, governance, risk & compliance, performance improvement, and information technology. Tax Desk Tax desks is developed by Grant Thornton US and it connects other member firms in different countries to help clients grow their business and solve their common problems in the global market. Grant Thornton US has established the desks between the United States and the UK, the United States and China, and the United States and Japan. Criticisms Several audit deficiencies in the firm's audit work at eight companies were found by Public Company Oversight Board when it was doing the inspection of Grant Thornton's 2005 audit. In the PCAOB's report, the Board concluded that the firm didn't have enough evidence to support its audit opinions. Grant Thornton responded to the PCAOB's criticism on June 4, 2007. In its response letter, the firm wrote "We strongly disagree with the use of overly broad comments such as ‘failed to identify’, ‘failed to perform,’". In April 2012, Grant Thornton was accused by its client Bill Yung and his family. The firm hid real information from its clients and sold a tax shelter to them. There was a 90% chance the IRS would reject the shelter. Kentucky State Court