©2025 Affiliated Engineers, Inc. Search Affiliated Engineers is an industry-leading consulting engineering firm, providing achievement in engineered systems for complex building, energy, and utility projects. Affiliated Engineers is an industry-leading consulting engineering firm, providing achievement in engineered systems for complex ...

Learn about AEI Affiliated Engineers, providing industry-leading expertise in technical consulting and achievement in mechanical engineering and engineered systems from complex building, energy, and utility projects.

AEI Affiliated Engineers has 18 offices and regional cultures across the nation and in the UK.

AEI Affiliated Engineers has a wide variety of services with 15 integrated areas of expertise, including MEP and electrical engineering consulting.

What could a career path at AEI look like for you? Optimize systems. Conserve energy. Safeguard the future. Serve humanity. Your ideas, efforts, and passions matter here at AEI.

With nearly 50 years of experience of demonstrated engineering and design excellence, Affiliated Engineers, Inc. (AEI) brings unmatched project management and leadership across the entire continuum of delivery models.

AEI Affiliated Engineers is proud to share recently published articles, announcements, presentations, and update you on AEI's influence in the community.

As the fourth-largest city in the U.S., Houston is rooted in the energy, aeronautics, and healthcare industries and ranks third among metro areas with Fortune 500 company headquarters.

AEI Affiliated Engineers has built our success on relationships with our clients and partners. Learn more about AEI's leadership and business development team here.

AEI Chicago calls the heart of the Loop home, serving a client base developed over several decades. Our 27th floor office looks out on the Willis Tower (the "Sears Tower"), the Civic Opera House, the Daley Civic Center, and the Board of Trade.