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 delivers innovative solutions on complex projects globally.

Since 1995, VERTEX has completed over 90,000 projects.

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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.

Call Us: 888.298.5162

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Call us at 888.298.5162.

Isaac GaetzPE, SE, LEED AP

Vice President of Operations, Forensic Engineering

Mr. Gaetz has over 17 years of experience in management, structural design engineering, and forensic engineering and is a Vice President of Operations. Mr. Gaetz is responsible for Vertex’s national forensic operations including overseeing our technical work product and managing our forensic team members.

Mr. Gaetz’s wide range of professional and structural engineering experience includes the design of numerous commercial, industrial, institutional, and residential structures throughout the United States. Mr. Gaetz has extensive experience with on-site field work and has conducted approximately 800 forensic site inspections. Mr. Gaetz has also performed the analysis of structural and building failures throughout the United States. Mr. Gaetz has inspected buildings and structures for defects, including: collapses, roof and building envelope failures, construction defects, water intrusion, wind damage, snow damage, earthquake damage, foundation failures and settlement, vehicle impacts, and fire damage. Mr. Gaetz has provided engineering opinions which were utilized in both insurance claims and litigation files.

Mr. Gaetz is an expert in the design, construction, and repair of steel, concrete, wood, and masonry structures, and has extensive knowledge of existing, historical, and antiquated building systems. Mr. Gaetz’s design experience includes serving as the sole, and responsible engineer in charge of the design of new structures as well as a collaborative team member on the design of multiple high-rise structures in the city of Chicago. Mr. Gaetz has performed structural engineering design on low, mid, and high-rise structures, in the residential, commercial, industrial, institutional, government, education, aviation, and health care sectors. Mr. Gaetz was deployed for catastrophe response work following Hurricanes Matthew, Irma, and Michael as well as tornado and earthquake events and the 2020 Midwest Derecho Windstorm.

Education & Certification

M.S., Structural Engineering, Illinois Institute of Technology
B.S., Civil Engineering, Illinois Institute of Technology

Professional Engineer (PE) – Civil/Structural, State of IA, IN, KY, MD, MI, MN, MO, OH, PA, SC, TX, WI
Professional Engineer (PE) – Structural, State of DC
Structural Engineer (SE), State of HI, IL
Professional Engineer (PE) – Civil, State of IL
LEED Accredited Professional


American Society of Civil Engineers (ASCE) – Professional Member
Structural Engineering Association of Illinois (SEAOI) – Professional Member
The Masonry Society (TMS) – Existing Masonry Committee Member
Chi Epsilon – Civil Engineering Honor Society Member
Village of Wilmette, Illinois, Transportation Commission Board Member 2015-2022

Expert Witness Services

Forensics Technical, Architecture / Building Envelope

Forensics Technical, Structural