425 S. Woods Mill Road
Chesterfield, MO 63017
Burns & McDonnell serves the St. Louis metropolitan area from two offices: St. Louis and O'Fallon, Ill. More than 140 full-time professionals, all employee-owners, provide depth of experience with a focus on cost-effective, innovative solutions that make our clients successful.
Listed in the top 10 percent of U.S. engineering firms, Burns & McDonnell-St. Louis has served the metropolitan area's needs since 1989, delivering a wide range of projects from aviation to roads and bridges to cybersecurity, water and wastewater to labs and clean rooms, power generation, defense facilities and air quality improvements.
A 100 percent employee-owned firm, Burns & McDonnell fosters a continuity of client service that is a function of our commitment to proactive communication and low staff turnover.
Our clients are important to us, and we're proud to have earned PSMJ's Premier Award for Client Satisfaction for the third year in a row.