We are Grant Thornton

Detroit, Michigan

  • Manufacturing, Transportation & Distribution
Service Experience
  • Audit & Assurance
  • Public company audit

Ryan Giacolone




Executive summary

Ryan Giacolone is the Regional Audit Practice Leader based in Grant Thornton’s Southfield (Detroit) office. He has over 20 years of experience in public accounting, working with both privately held and large publicly traded companies in a wide range of industries, primarily focusing on manufacturing and financial services. Prior to joining the firm, Ryan worked for a large international accounting firm. Ryan currently serves as the audit partner for a $6B auto financier and a $1.4B transportation and logistics company which are both public companies. He also serves manufacturing clients, including a $3B manufacturer, both with international operations. Ryan specializes in large SEC filers in the specialty finance and automotive sectors.




Professional qualifications and memberships

  • CPA — Michigan 
  • Michigan Association of Certified Public Accountants, PAC committee chair 
  • A member of the AICPA


Community involvement

  • Board member of The Rainbow Connection 
  • Board member of Junior Achievement  
  • A member of the Executive Advisory Board for the Detroit Regional Dollars for Scholars



  • BS, Economics, Management, Albion College


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