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Erik B. Wetzler
Erik B. Wetzler

Managing Director

Alexander Billy
Alexander Billy

Managing Director

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Serkan Sengul

Senior Managing Director

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Mark DegenaarsLEED GA

Global Disputes Division Leader, Technical Claims and Disputes

Mr. Degenaars is the Global Disputes Division Leader at The Vertex Companies. He has been with Vertex since 2010 with a primary focus as a consultant to the surety claims industry and private/public developers.

Mr. Degenaars is the Global Disputes Division Leader at Vertex and is responsible for overseeing the practice areas including: Commercial Damages and Investigations; Claims, Disputes, and Forensics; Project Advisory; as well as Compliance & Regulatory. With a keen focus on organic growth of the firm, Mark brings over 25 years of experience leading and growing professional services consultancies, as well as managing construction projects from various types of vertical construction to heavy highway/civil design. Prior to joining Vertex, Mr. Degenaars owned and managed his own consulting firm for nearly a decade.

Education & Certification

B.A., History, University of Richmond
Project Management and Construction Cost Estimating, New York University

Expert Witness Services

Surety