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Vice Chairman of Professional Services
During his tenure with Deloitte Italy, Tirelli managed 4,500 professionals and $750 million in revenue. Prior to this international role, as the Vice Chairman for Deloitte U.S., Tirelli had direct supervision over all of Deloitte U.S.’s offices on the West Coast.
In addition to his 30 years of experience with the “Big 4” accounting firm, Tirelli was the President and CEO of Herbalife International Inc, a publicly traded nutrition company that did business in 52 countries and generated $2 billion in sales. In his current position with alliantgroup, Tirelli plays not only an important role in advising the firm’s executive management team on strategic and client service initiatives, but is an invaluable resource to alliantgroup’s CPA and industry partners – advising them on issues such as talent acquisition, talent development and retention, leadership, succession planning and revenue growth strategies.