S2i is an Construction Management and Program Management (CMPM) consulting firm that provides support to the construction industry specially the U.S. Federal construction market. We offer a wide array of construction management and engineering support services including but not limited to Project Controls, BIM Modeling, Quantity Surveys, Procurement Support and On-Site Support and Staff Augmentation. We also champion dispute avoidance for complex construction claims and disputes, while we provide litigation and expert witness support.