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20+ years of experience in audit, forensic accounting and investigations
Supported FCPA Monitorship
Advises clients during investigations, including analyses, complex financial issues, and governance and alleged integrity concerns
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Investigate beyond the numbers, including cultural aspects.
Coen Mateijsen is a Director with Alvarez & Marsal Disputes and Investigations in Amsterdam, with more than 20 years of experience – specializing in forensic services.

He has supported clients during investigations, including analyses and solving complex financial issues. This involves issues regarding governance and alleged integrity concerns.

Mr. Mateijsen has led many complex investigations domestically and internationally and advised (supervisory) boards, corporations and stakeholders to help resolve high stakes financial, regulatory issues and has presented his findings to different regulatory entities.

He focuses on complex forensic investigations, valuation and damage calculations (including second opinions), investigative and integrity due diligence (support M&A deals), litigation, fraud risk assessments, fraud risk management and compliance consulting services for public and private companies, both domestically and internationally.

During his career, Mr. Mateijsen has worked with clients across many industry sectors, including automotive, retail, construction and real estate and public entities and spent time dedicated to special (financial) investigations.

Recently, he supported the Monitor as a Consulting Director during his work on behalf of the U.S. Government as part of a deferred prosecution agreement (FCPA violation) at a multinational in the auto sector. He has also performed compliance reviews at subsidiaries abroad, monitored the implementation of an effective compliance program across all departments of the company under review.

Before joining A&M, Mr. Mateijsen was a partner at Instituut Financieel Onderzoek (and Triforensic, a forensic boutique shop of Instituut Financieel Onderzoek) in Amersfoort. He began his career as an accountant in public accounting, and has previously worked for other accounting firms including KPMG and BDO.

Mr. Mateijsen earned a bachelor's degree in economics. He also earned a postgraduate degree in Auditing (CPA) and a bachelor’s in information management from the NIVRA / Nyenrode University. He is a member of the Dutch Institute of Certified Public Accountants and is fluent in Dutch and English.