Mark Quiroz joined Grant Thornton as a managing director in the firm’s Tax Accounting Risk Advisory Services practice based in Chicago.

Quiroz has more than 20 years of public accounting and management consulting experience. He specializes in enhancing the operational effectiveness of corporate tax functions, and focuses on tax accounting and compliance process improvement as well as tax sensitization of enterprise resource planning systems. He also has experience implementing new tax processes and technology to deal with ongoing legislative and regulatory changes.

Prior to joining Grant Thornton, Quiroz spent more than 10 years with PwC, where he served as management consulting director and leader in the firm’s financial services advisory practice.

“Mark brings to Grant Thornton a combination of proven leadership skills, vast knowledge of corporate tax functions, and a strong understanding of our growth-oriented clients’ needs,” said Vince Tomkinson, Grant Thornton’s Chicago office managing partner. “Having a professional of Mark’s caliber join the Grant Thornton team will be a real value to our clients, not just in this region, but nationally as well.”