Harnik Law Firm is adept at dealing with clients from foreign jurisdictions, especially those with a civil law tradition. The firm also recognizes the importance of fluency in foreign languages, and attorneys at the firm have the ability to conduct business in German and French. Stephen M. Harnik is the U.S. correspondent of JCA International, a network of law firms throughout Western, Central and Eastern Europe.

The firm has acted on behalf of both public and private companies, and traces its roots back to its predecessor firm, Wachtell, Manheim & Grouf, which, except for the War years, was legal counsel to the Republic of Austria, agencies of the Austrian government, and related commercial entities in connection with their United States activities.

The firm has also handled numerous matters in state and federal courts relating to judicial intervention in the arbitration process and judicial enforcement of international arbitration awards. By virtue of this broad experience, the firm is well-placed to handle complex disputes involving parties and witnesses from multiple countries. In keeping with its international expertise, the firm has wide experience in the enforcement of foreign judgments.