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VERTEX has Experts that Talk the Talk and Walk the Walk.

Unlike others, VERTEX provides forensic consulting alongside traditional AEC services which allows for a 360 degree view of your project.

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VERTEX is looking for talented individuals to join a highly technical team of forensic consultants, design engineers, construction managers, and environmental scientists.

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VERTEX is a multi-discipline firm with global coverage. Our international network of resources enables us to provide multi-national clients with the most qualified local professionals who understand the culture, language, and regulatory framework.

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Gary KoyamaRA

Consultant, Surety

Gary Koyama is a licensed architect in the state of Hawaii with experience in architectural design, construction administration, project management, and construction management in Hawaii and the Pacific Islands. He is responsible for providing project management, architectural design, construction administration, field investigations, and services for VERTEX’s Hawaii region, as well as surety claim investigations and reports in California and Hawaii.

Education & Certification

B.Arch., Architecture, University of Hawaii

Registered Architect, State of HI

Areas of Service

Surety Claims Consulting