About GCM Group

Precision-driven cost intelligence and forensic analysis for construction professionals.

GCM Group specializes in two critical areas: comprehensive cost management for development and construction projects, and expert witness services for construction claims and disputes. With over 20 years of hands-on construction experience, we deliver practical solutions grounded in real-world project knowledge rather than theoretical frameworks.

Our cost management services support owners, developers, and project teams through preliminary budgeting, schedule analysis, change order evaluation, and construction oversight. We provide the detailed cost intelligence and schedule insights that drive informed decision-making throughout the project lifecycle.

For legal professionals and parties involved in construction disputes, our expert witness services offer thorough delay analysis, change order evaluation, and claims preparation. Our forensic approach combines industry-standard methodologies with contemporaneous document review to deliver credible, defensible opinions for mediation, arbitration, and litigation support.