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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Our forensics experts work alongside AEC specialists which enhances our skills and bolsters the credibility of our expert consultants.

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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.

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Call us at 888.298.5162.

Erik BorgesenCMC

Managing Director, Industrial Hygiene & Building Sciences

As Managing Director at VERTEX, Mr. Borgesen provides operational leadership for the Environmental Service group of the company as well as senior management and technical oversight of projects pertaining to asbestos, indoor air quality, lead-based paint, mold/water intrusion, healthcare compliance, industrial hygiene, and occupational safety on a nationwide basis.

Mr. Borgesen has over 25 years experience in the environmental industry including: coordination and performance of Environmental Audits, Hazardous Materials Building Inspections, Industrial Hygiene Investigations, and Indoor Air Quality Studies. Specific expertise includes: asbestos, industrial hygiene, indoor air quality, construction defect investigations, water intrusion/mold investigations, bio-aerosol sampling, HVAC assessment, emergency response actions, risk assessment, epidemiology, remedial work plan preparation and remedial oversight.

As Senior Consultant on hundreds of environmental claims both in the northeast and across the United States, Mr. Borgesen has managed claims that have included cause & origin investigations, subrogation analysis, remediation of 1st party & 3rd party losses, pollution policies, cost cap policies, and indoor air quality/industrial hygiene claims. Additionally, he has completed claims management on hundreds of personal asbestos/lead/mold/Indoor air quality losses in both the northeast and across the United States. Responsibilities included cause/origin, 3rd party impact evaluations, subrogation analysis, remedial monitoring, contractor negotiations, and remedial cost feasibility reviews.

Education & Certification

B.S., Environmental Studies, Policy & Management, State University of New York, Syracuse, College of Environmental Science & Forestry
A.A.S., Environmental Studies, State University of New York College, Morrisville

Certified Microbial Consultant (C.M.C.)
40-Hour OSHA Hazardous Waste Operator Training
30-Hour OSHA Construction Training
CPR Certification and First Aid Training
US EPA RRP / MA Certified Lead Safe Renovator
AHERA Certified Asbestos Inspector
Class C Certified Asbestos Laboratory Director, State of MA
NIOSH 582 Equivalent: Asbestos Air Sampling and Analysis
Asbestos Operation & Maintenance / Associate Project Accreditation


American Industrial Hygienists Association, Member since 2004
American Indoor Air Quality Council (AmIAQ), Member since 2004
Indoor Air Quality Association (IAQA), Member since 2005
Massachusetts Environmental Health Association Member
New England Healthcare Engineers’ Society (NEHES)
American Society of Healthcare Engineers(ASHE)

Expert Witness Services

Environmental, Air Quality

Environmental, Demolition & Abatement

Environmental, Environmental Compliance/Disclosure

Environmental, Environmental Safety