The Certified Public Accounting Law dated 13th June 1989, No:3568, provided a new identity to Turkish Accountants, where the Accountants in Istanbul were organized under name of ISMMMO, which is a chamber with one of the highest members in Turkish chambers.

ISMMMO provide its services under a professional identity, solve the problems faced by the professionals, define the legal limits, offer solutions, determine professional standarts and ethical rules as well as provide application guides fort he current laws. The head Office was awarded TS-EN ISO 9001:2008 and IQ NET Assocation Quality Certificate.