A commitment to high quality

International CPA practice


Constantin is an international CPA practice with a specific expertise in helping clients comply, file and communicate financial matters according to major accounting standards (IFRS, US GAAP, European GAAP). The audits are also performed in compliance with US or European standards (GAAP-ISA).

In addition to performing standard audits and accounting work, Constantin is the ideal firm for conducting special assignments for companies, investment banks, and governments that are preparing transaction listings or reorganizations.

Constantin conducts a coordinated quality assurance program regarding commitment to the use of International Standards on Auditing (ISAs) and overall quality and ethics of the business.

Constantin  is a full member of the 'Forum of Firms' which is an organization whose members are 27 of the most significant accounting firms in the practice of transnational audits.

Several international teams

Most of our Partners, Managers and staff are fluent in English as well as one or two other languages such as French, German, and Mandarin.

Most of our staff has earned an MBA degree prior to entering the firm. They are quickly able to take on assignments comprising of coordination with independent experts such as lawyers, actuaries etc.

The track records of our partners are outstanding and the firm is represented in international professional organizations (FOF).

Our services can be rendered by the member firms of the Groupe Audit – Serval & Associes network to comply with the needs of issuing opinions in accordance with domestic regulations.

Our network operates in the United States under the name of Constantin – Serval & Associes and from other countries under the name of Groupe Audit – Serval and Associes which also includes Constantin Associates LLP as a full member.

International Offices

We are proud to have offices in North America, Europe & Asia.

Our Offices