From the heart of downtown Chicago, Burns & McDonnell professionals provide a full range of engineering, architecture, construction, environmental and consulting services. Our flexible, tailored approach meshes with each client, whether government, industry, utility or institutional. 

Our cost-effective solutions serve clients ranging from the City of Chicago and O’Hare International Airport to utility giant Exelon/ComEd. Our diverse service offerings include:

• Aviation
• Building design
• Commissioning
• Construction
• Electrical transmission and distribution
• Electric power generation
• Environmental
• Food, beverage and consumer products
• Transportation
• Water

With our commitment to safety, sustainability and client satisfaction, Burns & McDonnell continues to gain industry recognition. Engineering News-Record named us No. 7 in the 2025 Top 500 Design Firms. See how we ranked in specific categories. Among the reasons for our continued success is the low staff turnover that results from being a 100 percent employee-owned ESOP S Corporation. This spirit of ownership drives each and every staff member to contribute to our mission to make our clients successful.

We're proud to be ranked the #1 largest engineering firm in the Chicago area for 2025, based on number of licensed engineers, by Crain's Chicago Business.

Burns & McDonnell is honored to be named to the list of Best Places to Work in Illinois in 2025 — #4 among large companies.

The Chicago team is honored to be among the 2024 Top Workplaces in Chicago, as ranked by the Chicago Tribune.

We are excited to be on the 2024 list of the Illinois Healthiest Employers (5,000+ employees category) by Crain's Chicago Business. 

Want to know what makes Burns & McDonnell a great place to work? Great Rated!, the organization behind the rankings used by Fortune magazine, shares details about what our people say and do that puts us on the list. Read more