Gassen has practiced public accounting since 2005. He assists private equity companies and strategic buyers through all phases of the acquisition process, including initial deal analysis, financial and accounting due diligence, valuation, identification of synergies, and integration.

Prior to joining Moss Adams, Gassen was a director at a Big Four firm where his work included financial due diligence, restructuring, and corporate finance projects. He has worked on multiple cross-border transactions involving the United States, France, Finland, Germany, Belgium, United Kingdom, United Arab Emirates, Greece, and Vietnam. Gassen’s experience includes deals ranging from $10 million to $3 billion.


  • BS, accounting, Institut Supérieur de Comptabilité et d'Administration des Entreprises, Tunisia
  • MAcc, Golden Gate University

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