2018 Engineering News-Record (ENR) Top 500 Design Firms, Ranking: 274

Each year, the ENR Top 500 Design Firms ranks the largest engineering, architectural and environmental design firms nationwide according to revenue for design services. ENR is widely considered to be the industry’s preeminent trade publication. OHM Advisors proudly continued its steady year-over-year trajectory to break into the top 275, once again achieving its highest ranking in firm history.