EXP

EXP is a full-service, multidisciplinary engineering, architecture, design, and consulting firm with a heritage dating back to 1906, headquartered in Chicago, Illinois. The company delivers projects across a broad range of markets including transportation, energy, water, healthcare, education, and mission-critical facilities, operating from more than 100 offices and labs across North America. With over 4,600 professionals, EXP is ranked among the top engineering and architecture firms in North America, including #5 in BD+C Giants Top 50 and #25 in ENR Top 500 Design Firms for 2025. EXP brings together engineering infrastructure expertise with architecture, digital innovation, and sustainability consulting to serve clients and communities worldwide.