McMAHON has been recognized as one of the country’s leading design firms by Engineering News-Record (ENR) magazine. ENR’s Top 500 Design Firms list ranks the largest U.S.-based design firms, both publicly and privately held, based on design-specific revenue. The firm is ranked 460 on the list.

Engineering News-Record is a weekly publication that reports engineering and construction news, analysis, commentary and data to construction industry professionals in the US and around the world.