Jack Katz Global leader - financial services +1 212 542 9660


Jack is the global head of Grant Thornton's financial services practice. He has acted as chairman of the partnership board at Grant Thornton US, served as the firm's national managing partner of financial services and led the New York and North Eastern practice.


  • Led the financial services practice at Grant Thornton US for approximately 20 years, building it into a national and global practice
  • Led the New York office
  • Acted as chairman of the partnership board


With more than 30 years in public accounting, his experience includes investment partnership, broker dealers, regulated investment companies, trading companies, manufacturers and technology companies. He has extensive experience serving international organisations and is a frequent speaker at professional forums. Jack has been quoted in local papers and has written articles for various trade publications.

He has also served on committees and boards in the financial services and not-for-profit industries.


  • Economic Club of New York
  • National Association of Corporate Directors
  • BA in taxation (Brooklyn College)
  • National Association of Corporate Directors